OPERATOR'S MANUAL

GPS NAVIGATOR

Model GP-170

www.furuno.com
 The paper used in this manual
is elemental chlorine free.

FURUNO Authorized Distributor/Dealer

9-52 Ashihara-cho,
Nishinomiya, 662-8580, JAPAN

All rights reserved. Printed in Japan A : JUN . 2014

Pub. No. OME-44820-A

(YOTA ) GP-170

0 0 0 1 7 7 7 3 6 1 0
IMPORTANT NOTICE
General
This manual has been authored with simplified grammar, to meet the needs of international us-
ers.
The operator of this equipment must read and follow the descriptions in this manual. Wrong op-
eration or maintenance can cancel the warranty or cause injury.
Do not copy any part of this manual without written permission from FURUNO.
If this manual is lost or worn, contact your dealer about replacement.
The contents of this manual and equipment specifications can change without notice.
The example screens (or illustrations) shown in this manual can be different from the screens
you see on your display. The screens you see depend on your system configuration and equip-
ment settings.
Save this manual for future reference.
Any modification of the equipment (including software) by persons not authorized by FURUNO
will cancel the warranty.
All brand and product names are trademarks, registered trademarks or service marks of their
respective holders.

How to discard this product

Discard this product according to local regulations for the disposal of industrial waste. For disposal
in the USA, see the homepage of the Electronics Industries Alliance (http://www.eiae.org/) for the
correct method of disposal.

How to discard a used battery

Some FURUNO products have a battery(ies). To see if your product has a battery(ies), see the
chapter on Maintenance. Follow the instructions below if a battery(ies) is used. Tape the + and -
terminals of battery before disposal to prevent fire, heat generation caused by short circuit.

In the European Union

The crossed-out trash can symbol indicates that all types of batteries
must not be discarded in standard trash, or at a trash site. Take the
used batteries to a battery collection site according to your national
Cd
legislation and the Batteries Directive 2006/66/EU.

In the USA
The Mobius loop symbol (three chasing arrows) indicates that Ni-Cd
and lead-acid rechargeable batteries must be recycled. Take the
used batteries to a battery collection site according to local laws.
Ni-Cd Pb
In the other countries
There are no international standards for the battery recycle symbol. The number of symbols can
increase when the other countries make their own recycle symbols in the future.

i
 SAFETY INSTRUCTIONS

Indicates a condition that can cause death or serious

WARNING injury if not avoided.

Indicates a condition that can cause minor or moderate

CAUTION injury if not avoided.

Warning, Caution Prohibitive Action Mandatory Action

WARNING CAUTION
Do not disassemble or modify The glass of an LCD panel breaks
the equipment. easily. Handle the LCD carefully.

Fire, electrical shock or serious Injury can result if the glass breaks.
injury can occur.
Do not connect/disconnect the
Turn off the power immediately if signal cable while turning the
water leaks into the equipment or power on.
smoke or fire is coming from the
equipment. The unit may be damaged.

Failure to turn off the equipment can No single navigation aid (including
cause fire or electrical shock. this unit) should ever be relied
Contact a FURUNO agent for service. upon as the exclusive means for
navigating your vessel.
Use the correct fuse.
The navigator is responsible for
A wrong fuse can cause fire or serious checking all aids available to confirm
damage to the equipment. his position. Electronic aids are
intended to assist, not replace, the
navigator.

About the TFT LCD

The TFT LCD is constructed using the latest LCD techniques, and displays
99.99% of its pixels. The remaining 0.01% of the pixels may drop out or
blink, however this is not an indication of malfunction.

Caution Label(s)
Caution label(s) is(are) attached to the equipment. Do not remove the label(s). If a label is missing or
damaged, contact a FURUNO agent or dealer about replacement.
Name: Caution Label
Type: 20-035-1003-0
Code No.: 100-386-200-10

ii
TABLE OF CONTENTS
FOREWORD................................................................................................................... vi
SYSTEM CONFIGURATIONS....................................................................................... vii

1. OPERATIONAL OVERVIEW .................................................................................1-1

1.1 Controls ......................................................................................................................1-1
1.2 How to Turn the Power On/Off ...................................................................................1-3
1.3 How to Adjust the Brilliance of the Display and Panel................................................1-4
1.4 How to Select the Display Mode.................................................................................1-5
1.5 Main Menu Overview..................................................................................................1-8
1.6 List Overview ..............................................................................................................1-9
1.7 Context Menu Overview ...........................................................................................1-10

2. PLOTTER DISPLAY OVERVIEW, TRACK ...........................................................2-1

2.1 How to Set the Display ...............................................................................................2-1
2.1.1 How to select the background color ...............................................................2-1
2.1.2 How to zoom in or out the display ..................................................................2-1
2.1.3 How to change the display orientation ...........................................................2-1
2.1.4 How to turn the cursor on/off, change cursor size ..........................................2-2
2.1.5 How to move the cursor .................................................................................2-2
2.1.6 How to shift the display ..................................................................................2-2
2.1.7 How to center the cursor position or ship's position .......................................2-3
2.1.8 How to show or hide the grid and change its color.........................................2-3
2.1.9 How to show or hide the XTL line and change its color .................................2-3
2.1.10 How to show or hide the heading line and change its color ...........................2-4
2.1.11 How to set the COG vector ............................................................................2-4
2.1.12 How to display the time mark .........................................................................2-5
2.1.13 How to display the names for marks and waypoints ......................................2-5
2.1.14 How to show or hide the weather data ...........................................................2-5
2.2 Bearing Reference......................................................................................................2-6
2.2.1 How to select bearing reference.....................................................................2-6
2.2.2 How to set the magnetic variation ..................................................................2-6
2.3 About Tracks ..............................................................................................................2-7
2.3.1 How to start or stop plotting and recording of the track ..................................2-7
2.3.2 How to set the track plotting interval ..............................................................2-7
2.3.3 How to set the track color ...............................................................................2-8
2.3.4 How to erase the track ...................................................................................2-8

3. MARKS ..................................................................................................................3-1
3.1 How to Enter a Mark on the Plotter Display................................................................3-1
3.1.1 How to preset mark appearance ....................................................................3-1
3.1.2 How to enter a mark at the cursor position.....................................................3-2
3.1.3 How to enter a mark from the mark list ..........................................................3-2
3.2 How to Enter an Event Mark.......................................................................................3-5
3.2.1 How to preset event mark appearance ..........................................................3-5
3.2.2 How to enter an event mark at own ships position ........................................3-5
3.2.3 How to enter an event mark from the mark list...............................................3-5
3.3 How to Enter a MOB Mark on the Plotter Display ......................................................3-6
3.4 How to Edit a Mark or an Event Mark.........................................................................3-7
3.5 How to Erase Marks ...................................................................................................3-8

4. ROUTES ................................................................................................................4-1
4.1 How to Create a Route ...............................................................................................4-1

iii
TABLE OF CONTENTS

4.1.1 How to preset the settings for routes ............................................................. 4-1

4.1.2 How to create a new route with the cursor and the ROUTE key.................... 4-3
4.1.3 How to create a new route from the route list ................................................ 4-4
4.2 How to Edit a Route ................................................................................................... 4-6
4.2.1 How to change the route name or color ......................................................... 4-6
4.2.2 How to edit a waypoint in a route ................................................................... 4-7
4.2.3 How to temporarily deselect a waypoint in a route......................................... 4-8
4.2.4 How to delete a waypoint from a route........................................................... 4-9
4.2.5 How to insert a waypoint in a route .............................................................. 4-10
4.2.6 How to change the route direction ............................................................... 4-11
4.2.7 How to copy the route .................................................................................. 4-11
4.3 How to Erase a Route .............................................................................................. 4-12

5. DESTINATION .......................................................................................................5-1
5.1 How to Set a Destination............................................................................................ 5-1
5.1.1 How to set a cursor position as a destination................................................. 5-1
5.1.2 How to set a waypoint as a destination.......................................................... 5-1
5.1.3 How to set a registered mark as a destination ............................................... 5-2
5.1.4 How to set a registered route as a destination............................................... 5-3
5.2 How to Cancel a Destination...................................................................................... 5-3
5.2.1 How to cancel a destination with the GO TO key........................................... 5-3
5.2.2 How to cancel a destination from the main menu .......................................... 5-3
5.2.3 How to cancel a destination from the context menu ...................................... 5-4
5.3 How to Calculate the Distance, Bearing and TTG (Time To Go)
Between Two Points .................................................................................................. 5-4
5.4 How to Display the ETA and TTG .............................................................................. 5-5
5.5 How to Calculate the Trip Distance............................................................................ 5-6
5.6 How to Set the Drift .................................................................................................... 5-6

6. NOTICES................................................................................................................6-1
6.1 Audio Notice Type...................................................................................................... 6-1
6.2 Arrival/Anchor Notice ................................................................................................. 6-2
6.2.1 Arrival notice .................................................................................................. 6-2
6.2.2 Anchor notice ................................................................................................. 6-2
6.3 XTE Notice ................................................................................................................. 6-3
6.4 Ship Speed Notice ..................................................................................................... 6-3
6.5 Trip Notice.................................................................................................................. 6-4

7. DISPLAYS..............................................................................................................7-1
7.1 Integrity Display.......................................................................................................... 7-1
7.2 Highway Display......................................................................................................... 7-4
7.3 Course Display........................................................................................................... 7-5
7.4 Data Display............................................................................................................... 7-6

8. ALERTS .................................................................................................................8-1
8.1 Overview .................................................................................................................... 8-1
8.2 Alert List ..................................................................................................................... 8-3
8.3 Alert Log..................................................................................................................... 8-4
8.4 How to Acknowledge Alerts ....................................................................................... 8-4

9. OTHER FUNCTIONS .............................................................................................9-1

9.1 Unit Setup Menu ........................................................................................................ 9-1
9.2 Correction, Offset Menu ............................................................................................. 9-1
9.3 GNSS Menu ............................................................................................................... 9-4
9.3.1 How to select the positioning system ............................................................. 9-4
9.3.2 How to set the time for smoothing of position, speed and speed average..... 9-4

iv
 TABLE OF CONTENTS

9.3.3 How to set the positioning condition ...............................................................9-5

9.3.4 How to select the RAIM function ....................................................................9-6
9.3.5 How to select the datum .................................................................................9-7
9.3.6 How to set the initial position ..........................................................................9-7
9.3.7 How to set the positioning cycle .....................................................................9-8
9.3.8 How to turn the anti-multipath mode on/off ....................................................9-8
9.4 Beacon/SBAS Menu...................................................................................................9-9
9.4.1 How to select the differential corrections to use .............................................9-9
9.4.2 How to set SBAS and beacon ........................................................................9-9
9.4.3 How to open the station data........................................................................9-10
9.5 Language..................................................................................................................9-12
9.6 I/O Menu...................................................................................................................9-13
9.6.1 How to set the output 1, 2, 3 or 4 .................................................................9-13
9.6.2 How to set the Ethernet ................................................................................9-14
9.6.3 How to select the input data .........................................................................9-15
9.6.4 Line monitor log ............................................................................................9-16
9.7 How to Set Dual Configuration .................................................................................9-18
9.8 How to Set ECDIS Sync Configuration.....................................................................9-18
9.9 How to Change the User Password .........................................................................9-19
9.10 How to Set the Demo Mode .....................................................................................9-20

10. MAINTENANCE, TROUBLESHOOTING ...........................................................10-1

10.1 Maintenance .............................................................................................................10-1
10.2 Fuse Replacement ...................................................................................................10-2
10.3 Troubleshooting........................................................................................................10-2
10.4 Equipment Information .............................................................................................10-3
10.5 Self Test ...................................................................................................................10-4
10.6 Backup......................................................................................................................10-6
10.7 How to Clear the Memory.........................................................................................10-8

APPENDIX 1 MENU TREE ....................................................................................... AP-1

APPENDIX 2 LIST OF TERMS/SYMBOLS ..............................................................AP-5
APPENDIX 3 TIME DIFFERENCES ......................................................................... AP-9
APPENDIX 4 GEODETIC CHART LIST .................................................................AP-10
APPENDIX 5 WHAT IS SBAS? ..............................................................................AP-11
APPENDIX 6 PARTS LIST/LOCATION.................................................................. AP-12
SPECIFICATIONS ..................................................................................................... SP-1
INDEX ......................................................................................................................... IN-1

v
FOREWORD
A Word to the Owner of the GP-170

Congratulations on your choice of the FURUNO GP-170 GPS Navigator. We are confident you
will see why the FURUNO name has become synonymous with quality and reliability.

Since 1948, FURUNO Electric Company has enjoyed an enviable reputation for innovative and
dependable marine electronics equipment. This dedication to excellence is furthered by our ex-
tensive global network of agents and dealers.

Your equipment is designed and constructed to meet the rigorous demands of the marine envi-
ronment. However, no machine can perform its intended function unless properly installed and
maintained. Please carefully read and follow the operation and maintenance procedures set forth
in this manual.

We would appreciate feedback from you, the end-user, about where we are achieving our purpos-
es.

Thank you for considering and purchasing FURUNO equipment.

Features

The main features of the GP-170 are as shown below.

High-resolution color LCD

Comprehensive navigation data displays
A DGPS beacon receiver (internal or external) can be connected to the GP-170 to add DGPS
capability.
Storage for 1,000 waypoints, 100 routes (99 for creating, one for external input), 1,000 tracks
and 2,000 marks
External USB flash memory capability
Notices: Arrival/Anchor, XTE (Cross-track Error), Ship speed, Trip
Alerts: Warning, Caution
Man overboard feature records position at time of man overboard and provides continuous up-
dates of range and bearing when navigating to the MOB position.
Unique Highway display provides a graphic presentation of ships progress toward a waypoint.
User-programmable nav data displays provide digital navigation data.
Two dual differential GPS navigator systems are available.
Ethernet port for connection to a LAN
Program No.

MAIN: 2051542-01.XX, GPS: 48504650XX,

BEACON: 2051544-01.XX (Requires internal beacon receiver.)
XX: Minor change

Open Source Acknowledgement

This product makes use of the following open source software:

b64: Base-64 Encoding Library (http://synesis.com.au/software/b64.html)
Portions of this software are copyright C 2012 Synesis Software Pty Ltd. All rights reserved.

vi
SYSTEM CONFIGURATIONS
Basic configuration is shown with solid line.

Single configuration

Antenna Unit Antenna Unit Antenna Unit

GPA-021S* GPA-020S** GPA-017S**

*: w/internal beacon receiver

**: w/o internal beacon receiver

USB Flash Memory Switching Hub

MENU NU/CU
ESC ENT
HUB-100
LIST

DISPLAY
1
ROUTE
2
GO TO
3
Radar,
MOB
4
MARK
EVENT 5
PLOT
ON/OFF 6
Echo Sounder,
ZOOM
IN 7
CENTER
8
ZOOM
OUT 9
Autopilot,
ACK
DELETE
CURSOR
ON/OFF 0 BRILL Printer (PP-505FP),
Beacon Receiver,
Rectifier Interface Unit IF-2503
PR-62

110/220 VAC Display Unit

Rectifier
PR-240

100 to 115/
200 to 230 VAC

12-24 VDC

vii
SYSTEM CONFIGURATIONS

Dual configuration

Antenna Unit Antenna Unit Antenna Unit Antenna Unit Antenna Unit Antenna Unit
GPA-021S* GPA-020S** GPA-017S** GPA-021S* GPA-020S** GPA-017S**

*: w/internal beacon receiver

**: w/o internal beacon receiver

Switching Hub
HUB-100

MENU NU/CU
MENU NU/CU ESC ENT

USB Flash Memory

ESC ENT

LIST
LIST
USB Flash Memory
DISPLAY ROUTE GO TO
DISPLAY ROUTE GO TO 1 2 3
1 2 3
MOB MARK PLOT
MOB MARK PLOT 4 EVENT 5 ON/OFF 6
4 EVENT 5 ON/OFF 6
ZOOM CENTER ZOOM
ZOOM CENTER ZOOM IN 7 8 OUT 9
IN 7 8 OUT 9
ACK CURSOR BRILL
ACK CURSOR BRILL DELETE ON/OFF 0
DELETE ON/OFF 0

Display Unit Display Unit

Rectifier Rectifier
PR-62 PR-62
Radar, Radar,
110/220 VAC Echo Sounder, 110/220 VAC
Echo Sounder,
Autopilot, Autopilot,
Rectifier Printer (PP-505FP), Printer (PP-505FP), Rectifier
PR-240 Beacon Receiver, Beacon Receiver, PR-240
Interface Unit IF-2503 Interface Unit IF-2503
100 to 115/ 100 to 115/
200 to 230 VAC 200 to 230 VAC

12-24 VDC 12-24 VDC

Environmental category

Units Category
Antenna Unit Exposed to the weather
Display Unit Protected from the weather

viii
1. OPERATIONAL OVERVIEW

1.1 Controls

Operation keys 4
6 1 2
MENU NU/CU
ESC ENT
MENU NU/CU
ESC ENT

3
LIST
LIST 5
DISPLAY
1
ROUTE
2
GO TO
3 7
DISPLAY ROUTE GO TO
MOB
4
MARK
EVENT 5
PLOT
ON/OFF 6
1 2 3 8
ZOOM CENTER ZOOM
10
MOB MARK PLOT
IN 7 8 OUT 9
4 EVENT 5 ON/OFF 6 11
ACK
DELETE
CURSOR
ON/OFF 0 BRILL 13
ZOOM CENTER ZOOM
IN 7 8 OUT 9 14
ACK CURSOR
DELETE ON/OFF 0 BRILL 17

18

Function keys

9 16 15
12 19

The keys are arranged according to the function.

Function
No. Control
Menu screen Display mode
1 MENU/ESC Closes the menu. Opens the menu.
Quits current operation. Quits current operation.
2 NU/CU ENT Confirms a selection. Switches the orientation mode
between north-up and course-up
on the plotter display.
Confirms a selection then closes
the setting window.
3 Cursorpad S or T: Selects the menu Shifts display or cursor on the
item. plotter display.
W: Goes back one layer in Switches display on the integrity
multi-layer menu. display.
X: Goes forward one layer in
multi-layer menu.
4 LIST Opens the list.
Switches the list (any display mark list route list station list
(requires the internal beacon receiver) any display). Long-press to
switch the list in reverse order.
5 Opens the context menu on the plotter
(Right-click) display.

1-1
1. OPERATIONAL OVERVIEW

Function
No. Control
Menu screen Display mode
6 DISPLAY/1 Selects and confirms the Selects the display mode.
7 ROUTE/2 selected menu item. Starts/stops the registration of a route
Enters a numeric character. on the plotter display.
8 GO TO/3 Sets a destination at the cursor
position on the plotter display with
cursor on.
Opens the context menu for Go To
on the plotter display with cursor
off.
9 MOB/4 Marks a man overboard position and
sets a destination on the plotter
display.
10 MARK EVENT/5 Puts a mark at the cursor position
on the plotter display with cursor
on.
Puts an event mark at own ships
position on the plotter display with
cursor off.
11 PLOT ON/OFF/ Resumes/stops track plotting on the
6 plotter display.
12 ZOOM IN/7 Zooms in the plotter display.
13 CENTER/8 Centers the cursor position on the
plotter display with cursor on.
Centers own ships position on the
plotter display with cursor off.
14 ZOOM OUT/9 Zooms out the plotter display.
15 CURSOR ON/OFF/ Turns the cursor on or off on the
0 plotter display.
16 ACK/DELETE Acknowledges an Acknowledges an unacknowledged
unacknowledged alert when alert when the pop-up appears.
the pop-up appears. Deletes registered data (marks,
Deletes all setting values on etc.) at the cursor-selected position
the setting window when on the plotter display when there
there is no unacknowledged are no unacknowledged alerts.
alerts.
17 BRILL Opens the brilliance adjustment window.
Adjusts the display brilliance when the adjustment window opens.
18 Turns the power on or off.
(Power)
19 USB port For connection of USB flash memory.

Key sound
When you operate a key, a single beep sounds. If you do not need the key beep, de-
activate the beep sound as follows (see section 1.5):

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [9 Sound].
3. Select [2 Key Sound].
4. Select [2 Off].
5. Press the MENU/ESC key to close the main menu.

1-2
 1. OPERATIONAL OVERVIEW

1.2 How to Turn the Power On/Off

Press the key to turn the power on. The start-up screen appears for 30 seconds
then the last-used screen appears.

Self test
results
Appears when
internal beacon Start-up screen
XX: Program version numbers
receiver is installed.

Last-used screen (example: plotter display)

DGPS beacon receiver

The GP-170 is available in two specifications, with DGPS beacon receiver and no
DGPS beacon receiver. Only the beacon receiver equipped GP-170 has DGPS capa-
bility. To get DGPS capability, install the optional internal beacon receiver (name: bea-
con receiver set, type: OP20-42, code no.: 000-023-637) or connect an external
beacon receiver.

Status indications
Indication
System
2D positioning 3D positioning
GP-2D GP-3D GPS
GP-S2D GP-S3D GPS + SBAS

1-3
1. OPERATIONAL OVERVIEW

Indication
System
2D positioning 3D positioning
GP-D2D GP-D3D GPS + Differential
GP-D2D (Yellow) GP-D3D (Yellow) GPS + Differential (WER>10%)
GP-D2D! (Yellow) GP-D3D! (Yellow) GPS + Differential (Unmonitored)
GA-2D GA-3D GALILEO
GA-S2D GA-S3D GALILEO + SBAS
GA-D2D GA-D3D GALILEO + Differential
GA-D2D (Yellow) GA-D3D (Yellow) GALILEO + Differential (WER>10%)
GA-D2D! (Yellow) GA-D3D! (Yellow) GALILEO + Differential (Unmonitored)
GL-2D GL-3D GLONASS
GL-S2D GL-S3D GLONASS + SBAS
GL-D2D GL-D3D GLONASS + Differential
GL-D2D (Yellow) GL-D3D (Yellow) GLONASS + Differential (WER>10%)
GL-D2D! (Yellow) GL-D3D! (Yellow) GLONASS + Differential (Unmonitored)
GN-2D GN-3D Multi
GN-S2D GN-S3D Multi + SBAS
GN-D2D GN-D3D Multi + Differential
GN-D2D (Yellow) GN-D3D (Yellow) Multi + Differential (WER>10%)
GN-D2D! (Yellow) GN-D3D! (Yellow) Multi + Differential (Unmonitored)
No Fix No fixed
2D positioning: Three satellites are used.
3D positioning: More than four satellites are used.

Note 1: GLONASS, GALILEO and Multi are reserved for future use.
Note 2: The screen refreshes slower in low ambient temperature.

To turn the power off, press the key.

1.3 How to Adjust the Brilliance of the Display and

Panel
1. Press the BRILL key to show the following setting window.

Switch the color mode between

day mode and night mode.
Long-press to restore the
settings to default of day mode.
2. To adjust the display brilliance, use the cursorpad (W or X) or the BRILL key (set-
ting range: 0 to 15, default: 14 for day mode/6 for night mode).
3. To adjust the panel brilliance, use the cursorpad (S or T) (setting range: 0 to 9,
default: 7 for day and night modes).
4. Press the MENU/ESC key to close the setting window.

1-4
 1. OPERATIONAL OVERVIEW

Note 1: The default settings for night mode is 6 for [Display] and 7 for [Panel]. If the
display is difficult to see when switching to the night mode, use the cursorpad (X) to
increase the display brilliance.
Note 2: Whenever the brilliance mode is changed, the last-used brilliance for the se-
lected mode is set.
Note 3: When the brilliance is preset, the background color is also preset (see
paragraph 2.1.1). So both the brilliance and the background color are restored to the
default when long-pressing the key.

1.4 How to Select the Display Mode

There are five display modes: PLOTTER, INTEGRITY, HIGHWAY, COURSE and DA-
TA. Press the DISPLAY key to select the display mode, in the following sequence. To
reverse the order, long-press the DISPLAY key.

PLOTTER INTEGRITY HIGHWAY

: Short-press the DISPLAY key
: Long-press the DISPLAY key
DATA COURSE

You can turn off the highway, course or data display if its use is not required.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [9 Display Select].
3. Select [3 Highway], [4 Course] or [5 Data].
4. Select [1 On] or [2 Off]. The display modes which are set to off are skipped when
operating the DISPLAY key.
Note: The plotter and integrity displays can not be disabled.
5. Press the MENU/ESC key to close the main menu.
The data is arranged according to data type.
Mode

Common information

Main information

Guidance or
alert information*

*: The alert information is displayed when an alert occurs.

1-5
1. OPERATIONAL OVERVIEW

Plotter Display

This icon appears when the number This icon appears Distance for RAIM reliability Spinner rotates when
of satellites used for positioning is during the the equipment is
more than four and the high preci- synchronization HDOP: 2D functioning normally.
sion speed computing is available. with ECDIS. Status PDOP: 3D
indication RAIM reliability Time and date of
Datum Position FIX
Cursor mode:
Cursor position,
Ships Chart mode:
position* No indication
North Cursor mode:
mark Bearing from
ship to cursor,
Grid Chart mode:
Bearing
Cursor mode:
Range from
Range ship to cursor,
scale Chart mode:
Range
Course over
ground
Speed over
Cursor on (Cursor mode): ground
Ships mark Ships track Course bar Heading line
Cursor off (Chart mode):
*: Shows the ships position adjusted with the setting position offset based
on the selected datum (refer to paragraph 9.3.5).

Note: The color of the ships position data depends on positioning status.
Black: GPS position fix
Red: No GPS position fix

Integrity Display

Satellites used for positioning (Satellite numbers used for positioning

are displayed in white, or black if not used for positioning.)

Receiver
signal level
(Bars show
signal level.)

Elevation 60 Elevation 30 Elevation 0

1-6
 1. OPERATIONAL OVERVIEW

Highway Display

Course over
ground
Speed over
ground

Course
information

Waypoint Attitude gauge Weather data

Course Display

Estimated
time and date
of arrival

Range

Velocity to
destination
Trip distance

Cross track distance indication

1-7
1. OPERATIONAL OVERVIEW

Data Display

Note: When invalid

data is input, - - - -
is displayed.

1.5 Main Menu Overview

1. Press the MENU/ESC key to open the main menu.

These marks indicate

additional menus.

Basic operation or
alert information
2. Use the cursorpad (S or T) to select a menu item then press the NU/CU ENT
key. You can also select a menu item by pressing the numeric keys. This manual
states this operating procedure as Select [No. menu name]. The menu items that
have a X indicate additional menus.

Second layer Third layer

1-8
 1. OPERATIONAL OVERVIEW

3. Select an option.
4. Press the MENU/ESC key to close the main menu.

1.6 List Overview

The LIST key displays the mark list, route list and station list, in the sequence shown
below.

Any display Mark List

Station List Route List

(Requires internal beacon receiver.)
: Short-press the LIST key
: Long-press the LIST key

How to save position in a list

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [2 Plotter].
3. Select [7 List Number].
4. Select [1 Keeping] or [2 Not Saved].
[Keeping]: Saves position in lists.
[Not Saved]: No. 0001 is always displayed at the top of the
list.
5. Press the MENU/ESC key to close the main menu.

1-9
1. OPERATIONAL OVERVIEW

How to change the data to display on the mark list

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [2 Plotter].
3. Select [8 List Information].
4. Select [1 L/L] or [2 Range/Bearing].
[L/L]: Displays latitude and longitude.
[Range/Bearing]: Displays the bearing and distance
from own ship to a mark or a waypoint.
5. Press the MENU/ESC key to close the main menu.

L/L Range/Bearing

1.7 Context Menu Overview

You can display a context menu for track, mark, route, waypoint or MOB. For example,
do the following to open the context menu for a mark.

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select a mark then press the key. The context menu
opens.

1-10
2. PLOTTER DISPLAY OVERVIEW,
TRACK

2.1 How to Set the Display

2.1.1 How to select the background color

You can select the background color to suit lighting conditions or environment (see
section 1.3).

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [1 Back Ground].

3. Select [1 White] or [2 Black].

4. Press the MENU/ESC key to close the main menu.

2.1.2 How to zoom in or out the display

You can change the range scale on the plotter display. Press the ZOOM IN key to
zoom in the display and the ZOOM OUT key to zoom out the display. The horizontal
range is available among 0.125, 0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 and
1024 NM.

2.1.3 How to change the display orientation

The display orientation for the plotter display can be selected to north-up or course-
up. Press the NU/CU ENT key to change the display orientation.

North-up
True north (0) is at the top of the display. Own ship moves on the display in accor-
dance with true motion. The land is stationary.

2-1
2. PLOTTER DISPLAY OVERVIEW, TRACK

Course-up
When the destination is set, the destination is at the top of the display and the north
mark ( ) appears at the left side of the display.

When the destination is not set, own ship's course is upward on the display at the mo-
ment you select the course-up and the north mark ( ) appears at the left side of the
display.

2.1.4 How to turn the cursor on/off, change cursor size

Press the CURSOR ON/OFF key to turn the cursor on or off.

Cursor size
You can change the cursor size.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [6 Cursor Size].

3. Select [1 Large] or [2 Small].

Large Small
4. Press the MENU/ESC key to close the main menu.

2.1.5 How to move the cursor

You can move the cursor with the cursorpad.

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Press or hold down the cursorpad. The cursor moves in the direction of the arrow
or diagonal. The display shifts when the cursor reaches an edge of the display, in
the direction opposite of the arrow pressed on the cursorpad. When the cursor is
turned on, the cursor position, the bearing and range from own ship to the cursor
appear at the right side of the display (see the plotter display on page 1-6).

2.1.6 How to shift the display

You can shift the display on the plotter display.

1. Press the CURSOR ON/OFF key to turn the cursor off.

2. Press or hold down the cursorpad.

2-2
 2. PLOTTER DISPLAY OVERVIEW, TRACK

2.1.7 How to center the cursor position or ship's position

Cursor position
1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Press the CENTER key.

Ship's position
1. Press the CURSOR ON/OFF key to turn the cursor off.
2. Press the CENTER key.
Note: When own ship reaches an edge of the display, own ships mark is automatical-
ly centered.

2.1.8 How to show or hide the grid and change its color
You can show or hide the grid and change its color (see "Plotter Display" on page 1-
6).

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [2 Grid].

3. Select the grid color. To turn the grid off, select [8 Off]. When selecting [7 White/
Black], the grid color depends on the background color.
Background color Grid color
White Black
Black White
4. Press the MENU/ESC key to close the main menu.

2.1.9 How to show or hide the XTL line and change its color
The XTL lines (see the illustration on page 5-1) straddle the intended course line and
they mark the XTL range. You can show or hide the lines and change their color.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [3 Lines Color].

2-3
2. PLOTTER DISPLAY OVERVIEW, TRACK

3. Select [1 XTL Line].

4. Select the XTL line color. To turn the XTL line off, select [8 Off].
5. Press the MENU/ESC key to close the main menu.

2.1.10 How to show or hide the heading line and change its color
You can show or hide the heading line and change its color.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [3 Lines Color].
3. Select [2 Heading Line].
4. Select the heading line color. To turn the heading line off, select [8 Off].
5. Press the MENU/ESC key to close the main menu.

2.1.11 How to set the COG vector

The COG vector is a vector line that runs from own ships icon. This vector shows
speed and course of own ship. The top of a vector shows estimated position of own
ship after the selected vector time elapses.

Note: The COG vector is not displayed when there is no position data.

How to show or hide the COG vector and change its color
1. Press the MENU/ESC key to open the main menu.
2. Select [1 Display] then [3 Lines Color].
3. Select [3 Course Vector].
4. Select the COG vector color. To turn the COG vector off, select [8 Off].
5. Press the MENU/ESC key to close the main menu.

How to set the COG vector time

1. Press the MENU/ESC key to open the main menu.
2. Select [1 Display] then [3 Lines Color].
3. Select [4 Course Vector Time].
4. Select the time for the COG vector. If you select [9 Con-
tinuous], the COG vector extends to the edge of the dis-
play.
5. Press the MENU/ESC key to close the main menu.

2-4
 2. PLOTTER DISPLAY OVERVIEW, TRACK

2.1.12 How to display the time mark

You can display the time mark on the track every hour on the hour.
Track

T
T T

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [4 Time Mark].
3. Select the color for the time mark. To turn the time mark off, select [8 Off].
4. Press the MENU/ESC key to close the main menu.

2.1.13 How to display the names for marks and waypoints

You can display the names for marks and waypoints.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [5 Mark/WPT Name].
3. Select [1 On (All)], [2 On (WPT)] or [3 Off].
[On (All)]: Displays the names for marks and waypoints.
[On (WPT)]: Displays the waypoint names.
[Off]: Turns off the names.
4. Press the MENU/ESC key to close the main menu.

2.1.14 How to show or hide the weather data

You can display the direction and the speed of the wind analyzed from type 16 mes-
sage when the weather data is received from a beacon station (see page 7-2).

The arrow points in wind direction

and its length changes according
akap akap to wind speed.
4m/s 4m/s
Plotter display Highway display

Note: This menu requires an internal or external beacon receiver.

1. Press the MENU/ESC key to open the main menu.
2. Select [1 Display] then [0 Data
Overlay].
3. Select [1 Weather (Type16)], then
[1 On] or [2 Off].
[On]: Displays the weather data
(type 16 message) on the plotter
display.
[Off]: Turns off the weather data (type 16 message) on the plotter display.
Note: On the highway display, the weather data is displayed regardless of on/off.
4. Press the MENU/ESC key to close the main menu.

2-5
2. PLOTTER DISPLAY OVERVIEW, TRACK

2.2 Bearing Reference

Ships course and bearing to a waypoint are displayed in true or magnetic bearing.
Magnetic bearing is true bearing plus (or minus) earths magnetic variation.

2.2.1 How to select bearing reference

The default setting displays true bearing.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].

3. Select [1 Bearing Reference].

4. Select [1 True] or [2 Magnetic].
[True]: Gyrocompass or satellite compass using true bearing
[Magnetic]: Magnetic compass
5. Press the MENU/ESC key to close the main menu.
When selecting [2 Magnetic] at step 4, follow the steps at paragraph 2.2.2.

2.2.2 How to set the magnetic variation

The location of the magnetic north pole is different from the geographical north pole.
This causes a difference between the true and magnetic north direction. This differ-
ence is called magnetic variation, and varies with respect to the observation point on
the earth. Magnetic variation is entered automatically or manually.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [2 Magnetic Variation].
4. Select [1 Auto] or [2 Manual]. If you select [1 Auto], go to step 7.
For [2 Manual], go to step 5.
5. Enter the variation with the numeric keys. To
change the coordinate, select "E" then press
one of keys from 0 to 9.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

2-6
 2. PLOTTER DISPLAY OVERVIEW, TRACK

2.3 About Tracks

The GP-170 stores 1,000 points of track.

2.3.1 How to start or stop plotting and recording of the track

Press the PLOT ON/OFF key to start or stop plotting and recording of the track. The
pop-up message "Resuming Track Plot" or "Stopping Track Plot" appears at the left
side of the display for two seconds. When track plotting is stopped, the icon ap-
pears at the bottom left corner of the display.

2.3.2 How to set the track plotting interval

In drawing the track, the position of your ship is stored into the memory of this equip-
ment at an interval of time or distance. A shorter interval provides better reconstruction
of the track, but the storage time of the track is reduced. When the track memory be-
comes full, the oldest track is erased to make room for the latest.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [1 Track REC].

3. Select [1 Time] or [2 Distance].

[Time]: Enter the time interval with the numeric keys (setting range: 0001 (1 sec)
to 6000 (60 min)).
[Distance]: Enter the distance interval with the numeric keys (setting range: 00.01
to 99.99 NM).

Time Distance
4. Move the cursor to [Enter] then press the NU/CU ENT key.
5. Press the MENU/ESC key to close the main menu.

2-7
2. PLOTTER DISPLAY OVERVIEW, TRACK

2.3.3 How to set the track color

You can select the track color as follows:

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [2 Track Color].
3. Select the track color.
4. Press the MENU/ESC key to close the main menu.

How to change the color of selected track

1. Put the cursor on the track.

2. Press the key to open the context menu.

3. Select [1 Change Color].
4. Select the color to change.
5. Press the MENU/ESC key to close the context menu.

2.3.4 How to erase the track

How to erase all tracks from the main menu
1. Press the MENU/ESC key to open the main menu.
2. Select [2 Track/Mark] then [9 Erase Track].

3. Select [1 Erase Track]. The confirmation message appears.

4. Select [1 Yes].
5. Press the MENU/ESC key to close the main menu.

How to erase all tracks from the context menu

1. Put the cursor on a track.

2. Press the key to open the context menu.

3. Select [2 Erase All]. The confirmation message appears.
4. Select [1 Yes].

2-8
3. MARKS
You can put marks on the plotter display to indicate good fishing spot, location of traps,
etc. Marks have 16 shapes and seven colors. Also, marks can be connected with
lines.

3.1 How to Enter a Mark on the Plotter Display

3.1.1 How to preset mark appearance

Set the default mark shape, color, line type to use when entering a mark.

Mark shape
You can select a mark shape from 16 types.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [3 Mark Shape].

3. Use the cursorpad to select the shape then press the NU/CU ENT key.
4. Press the MENU/ESC key to close the main menu.

Mark color
You can select a mark color from seven colors.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [4 Mark Color].

3. Select the color.

4. Press the MENU/ESC key to close the main menu.

Mark line
Marks can be connected with lines, and three types of lines are available.

1. Press the MENU/ESC key to open the main menu.

3-1
3. MARKS

2. Select [2 Track/Mark] then [5 Mark Line].

3. Select the line type.

[None]: None [Solid]:
[Dash]: [Alternate Dash]:
4. Press the MENU/ESC key to close the main menu.
When continuously entering marks by the method described in paragraph 3.1.2, the
marks are connected with the selected line.

Mark line color

You can select a mark line color from seven colors.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [6 Line Color].
3. Select the color.
4. Press the MENU/ESC key to close the main menu.

3.1.2 How to enter a mark at the cursor position

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to place the cursor on the location for a mark.
3. Press the MARK EVENT key to put the mark. This mark is named with the young-
est unused mark number (for example, "POINT0001"), and saved to the mark list.

3.1.3 How to enter a mark from the mark list

At the cursor position
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [1 Mark Registration].

3-2
 3. MARKS

3. With the cursor on the [New] line, press the NU/CU ENT key.

4. Select [1 Cursor].
5. Use the cursorpad to select the position for the mark.
6. Press the NU/CU ENT key.

7. Change the name (see page 4-6), position, symbol or color if necessary.
8. Select [9 Register]. The confirmation message appears.

9. Select [1 Yes] or [2 No].

[Yes]: Marks are registered with connection lines.
[No]: Marks are registered without connection lines.
10. Press the MENU/ESC key to close the main menu.

By entering L/L
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [1 Mark Registration].
3. With the cursor on the [New] line, press the NU/CU ENT key.

3-3
3. MARKS

4. Select [2 Input L/L].

5. Enter latitude and longitude with the numeric keys. (To change the coordinate, se-
lect "N" or "E" then press one of keys from 0 to 9.)
6. Move the cursor to [Enter] then press the NU/CU ENT key.

7. Change the name (see page 4-6), position, symbol or color if necessary.
8. Select [9 Register]. The confirmation message appears.

9. Select [1 Yes] or [2 No].

[Yes]: Marks are registered with connection lines.
[No]: Marks are registered without connection lines.
10. Press the MENU/ESC key to close the main menu.

3-4
 3. MARKS

3.2 How to Enter an Event Mark

Event marks can be used to mark an important present position on the plotter display.

3.2.1 How to preset event mark appearance

Set the default event mark shape and color to use when entering an event mark.

Event mark shape

You can select an event mark shape from 16 types.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [7 Event Mark].

3. Use the cursorpad to select the shape then press the NU/CU ENT key.
4. Press the MENU/ESC key to close the main menu.

Event mark color

You can select an event mark color from seven colors.

1. Press the MENU/ESC key to open the main menu.

2. Select [2 Track/Mark] then [8 Event Color].

3. Select the color.

4. Press the MENU/ESC key to close the main menu.

3.2.2 How to enter an event mark at own ships position

1. Press the CURSOR ON/OFF key to turn the cursor off.
2. Press the MARK EVENT key on the plotter display. This mark is named with the
youngest unused mark number (for example, "POINT0001"), and saved to the
mark list.

3.2.3 How to enter an event mark from the mark list

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [1 Mark Registration].
3. With the cursor on the [New] line, press the NU/CU ENT key.

3-5
3. MARKS

4. Select [3 OwnShip Position].

5. Change the name (see page 4-6), position, symbol or color if necessary.
6. Select [9 Register]. The confirmation message appears.

7. Select [1 Yes] or [2 No].

[Yes]: Marks are registered with connecting lines.
[No]: Marks are registered without connecting lines.
8. Press the MENU/ESC key to close the main menu.

3.3 How to Enter a MOB Mark on the Plotter Display

The MOB mark denotes man overboard position. You can use it as an aid to rescue.

Press the MOB key to put a MOB mark. When the key is pressed, own ship's position
is registered as a MOB mark ( ). The following message appears.

Select [1 Yes]. The position for the MOB mark becomes the destination. A line is
drawn between own ship and the MOB mark. This line shows the shortest course to
go to the MOB position. The bearing and range from own ship to the MOB position are
displayed at the right of the display. Only one MOB mark can be put on the plotter dis-
play, and each time the MOB key is operated the previous MOB mark and its position
data are written over.

3-6
 3. MARKS

3.4 How to Edit a Mark or an Event Mark

You can edit name, position, shape and color for a mark or an event mark on the plot-
ter display or through the mark list.

On the plotter display

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the (event) mark to edit then press the key to open
the context menu.

3. Select appropriate options to edit then set them.

4. Press the MENU/ESC key to close the context menu.

From the mark list

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [1 Mark Registration].
3. Use the cursorpad (S or T) to select the (event) mark to edit then press the NU/
CU ENT key. The [Edit] window same as above appears.
Note: You can select the (event) mark to edit by entering its mark no. with the nu-
meric keys.

Enter the mark no. (e.g. 0001)

with the numeric key then press
the NU/CU ENT key.

4. Select appropriate options to edit then set them.

5. Press the MENU/ESC key to close the main menu.

3-7
3. MARKS

3.5 How to Erase Marks

You can erase a mark(s), an event mark(s) or a MOB mark.

Note: You cannot erase the mark used as the current destination except the MOB
mark.

How to erase a mark from the context menu

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the mark to erase then press the key to open the
context menu.
3. Select [2 Delete].

How to erase a mark with the ACK/DELETE key

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to select the mark to erase
then press the ACK/DELETE key. The con-
firmation message appears.
3. Select [1 Yes].
For (event) mark For MOB mark
How to erase a mark from the mark list
Note: This menu is not available for a MOB mark.
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [1 Mark Registration].
3. Use the cursorpad (S or T) to select the mark to erase then press the NU/CU
ENT key.
4. Select [2 Delete].
5. Press the MENU/ESC key to close the main menu.

How to erase all marks

Note: This menu is not available for a MOB mark.
1. Press the MENU/ESC key to open the main menu.
2. Select [2 Track/Mark] then [9 Erase Track].

3. Select [2 Erase Mark]. The confirmation message appears.

4. Select [1 Yes].
5. Press the MENU/ESC key to close the main menu.

3-8
4. ROUTES
To navigate from one place to another, several course changes are required. The
point for course change is called a waypoint. The sequence of waypoints (marks for
course changes) leading to the last destination is called a route.

4.1 How to Create a Route

A maximum of 99 routes can be created and a route can have a maximum of 1,000
waypoints.

4.1.1 How to preset the settings for routes

XTL (Cross-track limit) range
The XTL range is the maximum distance your boat is allowed to go off course before
the XTE notice (see section 6.3) is given.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].

3. Select [6 Initial XTL/Arrival/Stay].

4. Select [1 XTL].
5. Enter the XTL distance with the numeric keys
(setting range: 0.001 to 9.999 NM).
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main menu.

4-1
4. ROUTES

Arrival radius
You can receive an audiovisual notice when you are within the specified distance from
a waypoint (see section 6.2).

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [6 Initial XTL/Arrival/Stay].
4. Select [2 Arrival Radius].
5. Enter the arrival radius with the numeric keys (setting range: 0.001 to 9.999 NM).
6. Move the cursor to [Enter] then press the NU/CU ENT key.
7. Press the MENU/ESC key to close the main menu.

Staying time
You can set the time the GP-170 waits at a waypoint in a followed route before it
switches to the next waypoint. See the note in "Departure time" on this page.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [6 Initial XTL/Arrival/Stay].
4. Select [3 Stay Time].
5. Enter the staying time at the waypoint with the numeric
keys.
6. Move the cursor to [Enter] then press the NU/CU ENT
key.
7. Press the MENU/ESC key to close the main menu.

SOG
Set the speed to use to follow a route.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [6 Initial XTL/Arrival/Stay].
4. Select [4 SOG].
5. Enter the speed with the numeric keys.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

Departure time
You can set the date and time to depart from the waypoint on the route.

Note: When the departure date and time set is before the current date and time, the
staying time has priority. When the departure date and time set is after the current date
and time, the departure time has priority.
1. Press the MENU/ESC key to open the main menu.

4-2
 4. ROUTES

2. Select [8 System Setting] then [2 Plotter].

3. Select [6 Initial XTL/Arrival/Stay].
4. Select [5 Departure Time].
5. Enter the date and time departing
from the starting point with the nu-
meric keys.
6. Move the cursor to [Enter] then
press the NU/CU ENT key. 2000 / 01 / 01 00 : 00
7. Press the MENU/ESC key to Year Day Minute
close the main menu. Month Hour

Range and bearing calculation method

When you set a destination, the equipment displays the range, bearing and course to
the destination. Range and bearing are calculated by the Rhumb Line or Great Circle
method.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [3 Calculation].
4. Select [1 RL] or [2 GC].
[RL] (Rhumb Line): This method calculates the range and bearing be-
tween two points drawn on a nautical chart. Since the bearing is kept
constant it is ideal for short-range navigation.
[GC] (Great Circle): This course line is the shortest course between two points on
the surface of the earth, like stretching a piece of string between two points on
earth. Frequent bearing changes are required to navigate by this method. For
long-range navigation, divide the Great Circle route into several routes, and nav-
igate each route by Rhumb Line.
5. Press the MENU/ESC key to close the main menu.

Route color
You can select the route color from seven colors.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [6 Initial XTL/Arrival/Stay].
4. Select [6 Route Color].
5. Select a color for route lines and waypoints.
6. Press the MENU/ESC key to close the main menu.

4.1.2 How to create a new route with the cursor and the ROUTE key
1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Long-press the ROUTE key. The message "Route Setting" appears on the dis-
play.
3. Use the cursorpad to place the cursor on the location for the first waypoint then
press the NU/CU ENT key.

4-3
4. ROUTES

4. Use the cursorpad to place the cursor on the location for the next waypoint then
press the NU/CU ENT key. Repeat this step to enter all waypoints.
5. At the last waypoint, press the ROUTE key to complete the route.

4.1.3 How to create a new route from the route list

With the cursorpad
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration].

3. With the cursor on the [New] line, press the NU/CU ENT key.

4. Select [1 Cursor].
5. Use the cursorpad to select the position for the first waypoint.
6. Press the NU/CU ENT key.

The values set in paragraph 4.1.1 are displayed at the menu items [3 XTL] to [7
DEP TIME]. You can change these values for each waypoint if required.

4-4
 4. ROUTES

7. Select [9 Add] to enter the waypoint.

8. Repeat steps 4 to 7 to enter all waypoints.
9. Press the MENU/ESC key to complete the route and close the main menu.

By entering L/L
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration].
3. With the cursor on the [New] line, press the NU/CU ENT key.
4. Select [2 Input L/L].
5. Enter latitude and longitude for the first
waypoint with the numeric keys. (To
change the coordinate, select "N" or
"E" then press one of keys from 0 to 9.)
6. Move the cursor to [Enter] then press
the NU/CU ENT key.
7. If necessary, change the settings of the route.
8. Select [9 Add] to enter the waypoint.
9. Repeat steps 4 to 8 to enter all waypoints.
10. Press the MENU/ESC key to complete the route and close the main menu.

From the mark list

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration].
3. With the cursor on the [New] line, press the NU/CU ENT key.
4. Select [3 From Mark List] to show the mark list.

5. Use the cursorpad (S or T) to select the mark to use for the route.
6. Press the NU/CU ENT key.
7. If necessary, change the settings of the route.
8. Select [9 Add] to enter the waypoint.
9. Repeat steps 4 to 8 to enter all waypoints.
10. Press the MENU/ESC key to complete the route and close the main menu.

4-5
4. ROUTES

4.2 How to Edit a Route

You can edit a route from the plotter display or through the route list.

4.2.1 How to change the route name or color

From the route list
1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration] to display the route list.
3. Use the cursorpad (S or T) or enter the route no. at the Jump position to select
the route to edit then press the NU/CU ENT key.

4. To change the name, select [3 Name].

To change input mode from English to Japanese,

select [Jpn] then press the NU/CU ENT key.

5. To add characters, use the cursorpad to select a character to add then press the
NU/CU ENT key.
To delete characters, use the cursorpad to select [BS] then press the NU/CU ENT
key.
6. Use the cursorpad to select [Enter] then press the NU/CU ENT key.
7. To change the color, select [4 Color], then select the new color.
8. Press the MENU/ESC key to close the main menu.

4-6
 4. ROUTES

On the plotter display

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Put the cursor on any route line of the route to edit then press the key. The
context menu opens.
3. Do steps 4 to 7 in "From the route list" on page 4-6 as appropriate.
4. Press the MENU/ESC key to close the context menu.

4.2.2 How to edit a waypoint in a route

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the waypoint in the route to edit then press the key
to open the context menu.

3. To change the name, select [1 Name].

4. To add characters, use the cursorpad to select a character to add then press the
NU/CU ENT key.
To delete characters, use the cursorpad to select [BS] then press the NU/CU ENT
key.
5. Use the cursorpad to select [Enter] then press the NU/CU ENT key.
6. To change the position, select [2 POS], then enter latitude and longitude for the
waypoint with the numeric keys. (To change the coordinate, select "N" or "E" then
press one of keys from 0 to 9.)
7. Use the cursorpad to select [Enter] then press the NU/CU ENT key.
8. To change the XTL range scale, select [3 XTL],
then enter the XTL range scale with the numer-
ic keys.
9. Use the cursorpad to select [Enter] then press
the NU/CU ENT key.
10. To change the arrival radius, select [4 ARV],
then enter the arrival radius with the numeric keys.
11. Use the cursorpad to select [Enter] then press the NU/CU ENT key.

4-7
4. ROUTES

12. To change the staying time, select [5 STAY], then enter

the staying time at the waypoint with the numeric keys.
13. Use the cursorpad to select [Enter] then press the NU/
CU ENT key.

14. To change the SOG, select [6 SOG], then en-

ter the speed with the numeric keys.
15. Use the cursorpad to select [Enter] then
press the NU/CU ENT key.
16. To change the departure time, select [7 DEP
TIME], then enter the date and time departing from the waypoint with the numeric
keys

17. Use the cursorpad to select [Enter] then press the NU/CU ENT key.
18. Press the MENU/ESC key to close the context menu.

4.2.3 How to temporarily deselect a waypoint in a route

You can temporarily deselect an unnecessary waypoint from a route. Using the route
created in the illustration shown below as an example, deselect "POINT0003".
POINT0003 POINT0005

POINT0002

POINT0001 POINT0004

If you reconstruct the route without "POINT0003" it would look like the illustration be-
low.
Skipped point POINT0005

POINT0002

POINT0001 POINT0004

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the waypoint in the route to skip then press the
key. The context menu opens.
3. Select [8 Skip].
4. Select [2 On].
5. Press the MENU/ESC key to close the context menu.

4-8
 4. ROUTES

How to restore the skipped waypoint

To restore the skipped waypoint if you have not passed it, do the following:

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Put the cursor on any route line of the route which contains the skipped waypoint

then press the key to open the context menu.

3. Select [6 WPT List]. The ( ) icon is displayed on the skipped waypoint.

Skipped
waypoint

4. Use the cursorpad (S or T) to select the skipped waypoint then press the NU/CU
ENT key.
5. Select [8 Skip].
6. Select [1 Off].
7. Press the MENU/ESC key to close the context menu.

4.2.4 How to delete a waypoint from a route

How to erase a waypoint from the context menu
1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the waypoint to delete then press the key to open
the context menu.
3. Select [0 Delete].

4-9
4. ROUTES

How to erase a waypoint with the ACK/DELETE key

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to select the waypoint to delete then
press the ACK/DELETE key. The confirmation message
appears.
3. Select [1 Yes].

How to erase a waypoint from the route list

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration].
3. Use the cursorpad (S or T) to select the route no. which contains the waypoint
to delete then press the NU/CU ENT key.
4. Select [6 WPT List].
5. Use the cursorpad (S or T) to select the waypoint to delete then press the NU/
CU ENT key.
6. Select [0 Delete].
7. Press the MENU/ESC key to close the main menu.

4.2.5 How to insert a waypoint in a route

You can insert a waypoint backward or forward of the selected waypoint in a route. For
example, to insert a waypoint backward or forward of "POINT0003", do the following:
POINT0003 POINT0005
POINT0002

POINT0001
POINT0004

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to select the waypoint (in this example, "POINT0003") then

press the key to open the context menu.

3. Select [9 Insert].

4. Select [1 Forward] or [2 Back].

[Forward]: Insert a waypoint forward of the selected waypoint.
[Back]: Insert a waypoint backward of the selected waypoint.
Back when
selecting [2 Back].

5. Select [1 Cursor], [2 Input L/L] or [3 From Mark List].

6. Set a waypoint position refer to paragraph 4.1.3. The context menu closes after
selecting [9 Add].

4-10
 4. ROUTES

4.2.6 How to change the route direction

You can change the direction to travel a route.

1. Press the MENU/ESC key to open the main menu.

2. Select [3 Navigation] then [2 Route Registration] to show the route list.
3. Use the cursorpad (S or T) to select the route to change its direction then press
the NU/CU ENT key to display the [Edit] window. This window can be opened as
the context menu (see "On the plotter display" in paragraph 4.2.1).
4. Select [5 Forward/Reverse].
5. Select [1 Forward] or [2 Reverse].
[Forward]: Follow the waypoints in the order they were en-
tered.
[Reverse]: Follow the waypoints in reverse order. The arrows on the route point in
the direction to follow the route (see the illustration on page 5-1).
6. Press the MENU/ESC key to close the main menu.

The ( ) icon is displayed on the route for which [Reverse] is selected.

[Reverse]
is selected.

4.2.7 How to copy the route

The copy feature lets you save a registered route under a new route number. This is
useful for creating a new route with parts of a previously registered route.

1. Press the MENU/ESC key to open the main menu.

2. Select [3 Navigation] then [2 Route Registration] to show the route list.
3. Use the cursorpad (S or T) to select the route to copy then press the NU/CU ENT
key to display the [Edit] window. This window can be opened as the context menu
(see "On the plotter display" in paragraph 4.2.1).

4-11
4. ROUTES

4. Select [7 Route Copy]. "ROUTE1" is copied in the illustration below.

[ROUTE1] is
copied here.

5. Edit the route as appropriate (see section 4.2).

6. Press the MENU/ESC key to close the main menu.

4.3 How to Erase a Route

How to erase a route from the context menu
1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Put the cursor on any route line of the route to delete then press the key to
open the context menu.

3. Select [2 Delete].

How to erase a route from the route list

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [2 Route Registration].
3. Use the cursorpad (S or T) to select the route to delete then press the NU/CU
ENT key.
4. Select [2 Delete].
5. Press the MENU/ESC key to close the main menu.

4-12
5. DESTINATION
Destination can be set five ways: by cursor, by waypoint, by mark, by route and by
MOB position. The setting by MOB position is described in section 3.3. When setting
a destination, a line (shortest course) appears between own ship and the destination
selected.
Destination name
POINT0001
Destination
XTL lines

Arrival radius
Shortest course
Own ship

Note: When a destination is set, ETA

Estimated time of
and ETA(Plan) are displayed instead of arrival at destination
COG and SOG at the bottom right of the
plotter display with the cursor off. Planned estimated
time of arrival at
destination
When setting a route as a destination

5.1 How to Set a Destination

Note: When the ECDIS synchronization is on, the destination can not be set on the
GP-170 (see section 9.8).

5.1.1 How to set a cursor position as a destination

You can set a destination at the position selected with the cursor.

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to place the cursor on the location for a destination.
3. Press the GO TO key.
Note: This destination set is erased when a new destination is entered.

5.1.2 How to set a waypoint as a destination

You can set a waypoint as a destination.

1. Press the CURSOR ON/OFF key to turn the cursor on.

2. Use the cursorpad to place the cursor on a waypoint as a destination.

3. Press the key to open the context menu.

5-1
5. DESTINATION

4. Use the cursorpad to select [GoTo/Cancel] then press the NU/CU ENT key.

Scroll bar (Indicates

menus currently not
shown in menu window.
You can see the menus
currently not shown by
pressing the cursorpad
( or .))

5.1.3 How to set a registered mark as a destination

You can set a registered mark as a destination.

From the main menu

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [6 Goto (Mark Number)].

3. Enter the mark number to set as a destination with the numeric keys.
4. Move the cursor to [Enter] then press the NU/CU ENT key.
5. Press the MENU/ESC key to close the main menu.

From the context menu

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to place the cursor on a mark as a destination.

3. Press the key to open the context menu.

4. Select [1 GoTo/Cancel].

5-2
 5. DESTINATION

5.1.4 How to set a registered route as a destination

You can set a registered route as a destination.

From the main menu

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [7 Goto (Route Number)].

3. Enter the route number to set as a destination with the numeric keys.
4. Move the cursor to [Enter] then press the NU/CU ENT key.
5. Press the MENU/ESC key to close the main menu.

From the context menu

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Put the cursor on any route line of the route as a destination.

3. Press the key to open the context menu.

4. Select [1 GoTo/Cancel].

5.2 How to Cancel a Destination

To cancel a destination, do one of the following three methods.

5.2.1 How to cancel a destination with the GO TO key

1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to place the cursor on a destination.
3. Press the GO TO key.

5.2.2 How to cancel a destination from the main menu

1. Press the MENU/ESC key to open the main menu.
2. Select [3 Navigation] then [8 Goto Cancel].

3. Press the MENU/ESC key to close the main menu.

5-3
5. DESTINATION

5.2.3 How to cancel a destination from the context menu

Note: This procedure is not available for the destination set with a mark (excluding the
MOB mark).
1. Press the CURSOR ON/OFF key to turn the cursor on.
2. Use the cursorpad to place the cursor on a destination.

3. Press the key to open the context menu.

On a route line On a waypoint

On a MOB mark
4. For a route line or a waypoint, select [1 Yes] then [GoTo/Cancel]. For a MOB
mark, select [1 GoTo/Cancel].

5.3 How to Calculate the Distance, Bearing and TTG

(Time To Go) Between Two Points
You can display the distance, bearing and time to go between two points.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [7 Manual Calculation].

3. Enter latitude and longitude for the starting and ending positions with the numeric
keys. To change the coordinate, select "N" or "E" then press one of keys from 0
to 9.

5-4
 5. DESTINATION

4. Move the cursor to [Enter] then press the NU/CU ENT key.

[TTG (Manual)]: Time to go calculated by SOG set on page 4-2

[TTG (Estimated)]: Time to go calculated by actual SOG
5. Press the NU/CU ENT key then press the MENU/ESC key to close the main
menu.

5.4 How to Display the ETA and TTG

You can display the ETA and TTG to waypoints on the plotter display.

ETA: The arrival date and time calculated by SOG set on page 4-2
TTG: The arrival date and time calculated by actual SOG (TTG is displayed when the
SOG is 0.4 kn or above.)

When the departure date and time set is before the current date and time, the ETA
and TTG are calculated by the staying time set. When the departure date and time set
is after the current date and time, the ETA and TTG are calculated by the departure
time set. See "Staying time" and "Departure time" on page 4-2.

1. Press the MENU/ESC key to open the main menu.

2. Select [3 Navigation] then [3 Display ETA/TTG].

3. Select [1 Off], [2 ETA] or [3 ETA+TTG].

[Off]: Hides the ETA and TTG.
[ETA]: Shows the ETA.
[ETA+TTG]: Shows the ETA and TTG.
4. Press the MENU/ESC key to close the main menu.

2014/04/13 TTG is shown in pink.

2014/04/11 15:23
10:07 2014/04/13 ETA is shown in green.
2014/04/11 2014/04/12 15:22
10:05 13:15
2014/04/12
POINT0002 13:13 POINT0004

POINT0001 POINT0003

5-5
5. DESTINATION

5.5 How to Calculate the Trip Distance

You can calculate the trip distance as follows:

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [4 Trip].

3. Select [1 Status].

4. Select [1 Stop], [2 Start/Restart] or [3 Clear].

[Stop]: Stops the trip distance calculation.
[Start/Restart]*: Starts or restarts the trip distance calculation.
[Clear]: Resets the trip distance.
5. Press the MENU/ESC key to close the main menu.
*: You can receive a notice, when your ship has travelled a preset distance. See
section 6.5 for details.

5.6 How to Set the Drift

You can set the time for which the drift value is averaged. The longer the time setting,
the more stable the drift value.

1. Press the MENU/ESC key to open the main menu.

2. Select [1 Display] then [8 Set/Drift AVR].

3. Select an option.
[Off]: Displays the latest drift value.
Others: Displays the average drift value per the setting time.
4. Press the MENU/ESC key to close the main menu.

5-6
6. NOTICES
There are five notice conditions which generate both audio and visual notices: Arrival,
Anchor, XTE, Ship Speed and Trip. When the conditions of a notice are met, the buzz-
er sounds according to the notice sound setting and the icon related to the notice turns
from gray to blue at the top right-hand corner of the display.

You can silence the buzzer by pressing the ACK/DELETE key.

Notice icons

: Trip

: Speed

: Anchor

: XTE

: Arrival

Note: You can not set both arrival and anchor notices at the same time.

6.1 Audio Notice Type

You can select the audio notice type as follows. When the conditions of a notice are
met, the icon color related to the notice changes regardless of the audio notice type.

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [9 Sound].

6-1
6. NOTICES

3. Select [1 Notice Sound].

4. Select [1 Off], [2 On] or [3 Continuous].
[Off]: No sound, only visual notice (an icon turns blue)
[On]: Three long beeps and visual notice (related icon turns
blue)
[Continuous]: This buzzer sounds until the ACK/DELETE key is operated to ac-
knowledge the notice. Visual notice (related icon turns blue).
5. Press the MENU/ESC key to close the main menu.

6.2 Arrival/Anchor Notice

Note: You can not set both arrival and anchor notices at the same time.

6.2.1 Arrival notice

The arrival notice alerts you when you are within the specified distance from a desti-
nation waypoint.

Notice setting

Destination waypoint
Your ship
: Notice zone

Before setting arrival notice, set the arrival radius (see "Arrival radius" on page 4-2).

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [1 Arrival/Anchor].

3. Select [1 Arrival]. The arrival notice icon ( ) appears in gray

at the top right-hand corner of the display.
4. Press the MENU/ESC key to close the main menu.
To turn off the arrival notice, select [3 Off] at step 3.

6.2.2 Anchor notice

The anchor notice alerts you that your ship is moving when your ship should be at rest.

Notice setting
Destination waypoint

Your ship

: Notice zone

Before setting anchor notice, set the arrival radius (see "Arrival radius" on page 4-2).

6-2
 6. NOTICES

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [1 Arrival/Anchor].

3. Select [2 Anchor]. The anchor notice icon ( ) appears in gray at the top right-
hand corner of the display.
4. Press the MENU/ESC key to close the main menu.
To turn off the anchor notice, select [3 Off] at step 3.

6.3 XTE Notice

The XTE (Cross-track error) notice alerts you when your ship is off its intended course
(the line from the start point to the destination waypoint) by the distance specified.
Destination
Start point
waypoint

Notice setting
Intended course

: Notice zone

Before setting XTE notice, set the XTL range (see "XTL (Cross-track limit) range" on
page 4-1).

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [2 XTE].

3. Select [2 On]. The XTE notice icon ( ) appears in gray at the top
right-hand corner of the display.
4. Press the MENU/ESC key to close the main menu.
To turn off the XTE notice, select [1 Off] at step 3.

6.4 Ship Speed Notice

The ship speed notice alerts you when your ships speed is lower or higher than the
speed notice setting or within the range set.

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [3 Ship Speed].

3. Select [1 Status].

6-3
6. NOTICES

4. Select [2 In] or [3 Out]. The ship speed notice icon ( ) appears in gray at the
top right-hand corner of the display.
[In]: The notice alerts you when your ships speed is within the range set.
[Out]: The notice alerts you when your ships speed is lower or higher than the
range set.
5. Select [2 Speed].
6. Enter the minimum and maximum speeds
with the numeric keys.
7. Move the cursor to [Enter] then press the NU/
CU ENT key.
8. Press the MENU/ESC key to close the main
menu.
To turn off the ship speed notice, select [1 Off] at step 4.

6.5 Trip Notice

The trip notice alerts you when your ships trip has travelled the distance specified.

1. Press the MENU/ESC key to open the main menu.

2. Select [4 Notice Setting] then [4 Trip].

3. Select [2 Range].

4. Enter the trip distance with the numeric keys.

5. Move the cursor to [Enter] then press the NU/CU ENT key.

6. Select [1 Status] then [2 Start/Restart]. The trip notice icon ( ) appears in gray
at the top right-hand corner of the display.
7. Press the MENU/ESC key to close the main menu.
To turn off the trip notice, select [1 Stop] at step 6.

6-4
7. DISPLAYS
There are five display modes: PLOTTER, INTEGRITY, HIGHWAY, COURSE and DA-
TA. This chapter describes the display modes except for PLOTTER.

7.1 Integrity Display

The integrity display provides information about GPS satellite position, beacon station
information and signal quality. There are four integrity displays: GNSS, beacon, graph
for signal noise ratio and graph for satellite angle.

Use the cursorpad (S or T) to change the displays, in the following sequence.

GNSS Beacon
: Press the key.
Graph: Graph: signal : Press the key.
satellite angle noise ratio

GNSS
The GNSS display shows the condition of satellite positioning system. Number, azi-
muth and elevation angle of all satellites (if applicable) in view of your receiver appear.

Use the cursorpad (W or X) to change the satellite positioning system in the following
sequence.
GPS GLONASS* GALILEO* : Press the key.
: Press the key.
ALL SBAS *: Reserved for future use.

The following illustration is an example integrity display for GPS.

Satellites used for positioning (Satellite numbers used for positioning
are displayed in white, or black if not used for positioning.)

Receiver
signal level
(Bars show
signal level.)

Elevation 60 Elevation 30 Elevation 0 Satellite numbers

7-1
7. DISPLAYS

Elevation

The area set on [Elevation Mask] is displayed in white. See "Satellite elevation" on
page 9-5 for how to set elevation mask.

Elevation mask is set to 10 Elevation mask is set to 30

Beacon
The beacon display shows the beacon station information.

Press the or key to

select [Next 1]* or [Next 2]*.
[Receive]: Station used for positioning
(the nearest station)
[Next 1]: Second nearest station
[Next 2]: Third nearest station
*: w/internal beacon receiver

Beacon station information Press the NU/CU ENT key.

Detailed beacon station information Press the NU/CU ENT key.

Type 16 message Press the NU/CU ENT key.

7-2
 7. DISPLAYS

Graph
The graph displays show signal to noise ratio and satellite angle used for positioning
for the last six hours.

Signal to noise ratio

Satellite angle

7-3
7. DISPLAYS

7.2 Highway Display

The highway display provides a 3-D view of own ships progress toward destination.

Use the cursorpad (W or X) to change the data at the right-hand of the display.

North mark

Waypoint

Weather data (wind

direction and speed)
(See paragraph 2.1.14.)
Attitude gauge
(See page 9-3.)

: Press the key.

: Press the key.

When weather data is

received from the
beacon station.

When the data for roll,

pitch or heave is
received.

ROLL
: Starboard
: Port
PITCH
: Up
: Down

7-4
 7. DISPLAYS

7.3 Course Display

The course display shows the course information. The information at the right-hand
side of the display is different between autopilot connection and no autopilot connec-
tion.

Bearing from own ship

to destination waypoint

Autopilot mode
Autopilot-set heading
Rudder angle
Course angle

Speed over ground

Velocity to destination

Trip distance

Heading (for autopilot) Cross track distance indication

With autopilot connection

Estimated time and date

of arrival
Required time to destination
Required time to next
destination
Range

No autopilot connection

7-5
7. DISPLAYS

7.4 Data Display

The data display shows the navigation data. Use the cursorpad (W or X) to change
the data to display.

Own ships position*

Speed over ground

Range

Heading

Course over ground

Press the or key.

Own ships position*

Route total distance

Estimated time of arrival

at the final destination
Estimated time of
arrival and planned
estimated time of arrival
at destination

Time to go to destination
*: Shows the ships position adjusted with the setting position offset
based on the selected datum (refer to paragraph 9.3.5).

How to customize the display

You can arrange the data to display and show the data in the order desired. Availability
of data depends on the sensors connected.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].

7-6
 7. DISPLAYS

3. Select [4 User Defined].

4. Select [1 Custom 1].

[TTG]: Time to go to destination

[TRIP]: Distance to go to destination
[TRIP TIME]: Time elapsed since the destination
was set
[Route TTG]: Time to go to the final destination
[VTD]: Velocity to destination
[ETA/ETA(Plan)]: ETA is estimated time of arrival
at destination. ETA(Plan) is planned estimated
time of arrival at destination.

5. Select an option.
6. Repeat steps 4 and 5 to select options for [2 Custom 2] to [8 Custom 8].
7. Press the MENU/ESC key to close the main menu.

Press the
or key.

Custom 1 Custom 2 Custom 5 Custom 6

Custom 3 Custom 4 Custom 7 Custom 8

7-7
7. DISPLAYS

How to zoom information

1. Press the CURSOR ON/OFF key. An information is highlighted as follows.

An information
highlighted

2. Use the cursorpad (S or T) to select the information to zoom in. SOG is highlight-
ed in the following example.

3. Press the ZOOM IN key to zoom in the SOG information.

To go to the original display, press the ZOOM OUT key.

4. Press the CURSOR ON/OFF key to deselect the SOG information.

7-8
8. ALERTS
Alert is a generic name for a notice to any unusual or potentially dangerous situation
generated within the system. There are two types of alerts, warning and caution.
Warning: Conditions or situations which require immediate attention for precautionary
reasons.
Caution: Awareness of a condition which continues to require attention out of the or-
dinary consideration of the situation.

8.1 Overview
The GP-170 has eight types of alerts as follows:

ID Message Type Meaning

010 D3D turned to 3D. Caution The positioning system turns from
or D3D turned to 2D. DGPS to GPS.
401010* D2D turned to 3D.
D2D turned to 2D.
S3D turned to 3D.
S3D turned to 2D.
S2D turned to 3D.
S2D turned to 2D.
D3D turned to "No Fix".
D2D turned to "No Fix".
S3D turned to "No Fix".
S2D turned to "No Fix".

Abbreviated messages:
D3D 3D.
D3D 2D.
D2D 3D.
D2D 2D.
S3D 3D.
S3D 2D.
S2D 3D.
S2D 2D.
D3D "No Fix".
D2D "No Fix".
S3D "No Fix".
S2D "No Fix".
210 HDOP exceeded. Caution The value of HDOP (Horizontal Di-
lution of Precision) is 4 or above.
HDOP threshold being permanent-
ly set to 4.
211 No calculation of position. Warning The signal from core is not received
for three seconds.
Abbreviated messages:
No calculation of POSN.
212 Loss of position. Warning No positioning data.

8-1
8. ALERTS

ID Message Type Meaning

213 Loss of differential signal. Caution More than 10 seconds have passed
since the last beacon message is
Abbreviated messages: received.
Loss of DGNSS signal.
215 Differential integrity status. Caution The beacon station selected auto-
matically is unhealthy.
Abbreviated messages:
DGNSS integrity status.
009 Antenna short-circuited. Warning The antenna has shorted out.
or
401009* Abbreviated messages:
ANT short-circuited.
950 Communication error with Caution Communication error with alert
or BAM. management system
401950*
*: When the alert mode is set to [Alert I/F 2] (only for serviceman), the alert ID number
is displayed in six digits.

Note: When a warning is not acknowledged within three minutes, the warning is re-
peated.
When an alert condition occurs, the buzzer sounds (except for a caution) and the
name of the alert appears at the bottom of the display.

Example 1: Warning

Ships position,
ships mark and
time of position fix
are displayed in red
for the caution 210
HDOP exceeded.

Example 2: Caution

8-2
 8. ALERTS

Alert category

Type Icon Visual indication

Warning Circle Acknowledged: Yellow-orange
Not acknowledged: Yellow-orange, flashing
Caution Square Yellow
For details, see page AP-8.

8.2 Alert List

The alert list shows all currently violated alerts and state of acknowledgment. All un-
acknowledged alerts are shown, even those whose reason for alert has passed (ex-
cept for a caution).

1. Press the MENU/ESC key to open the main menu.

2. Select [5 Alert] then [1 Active Alert] to show the alert list. Unacknowledged alerts
flash (except for a caution).

Not acknowledged Acknowleded

Alert number Alert name

Alert icon

Date and time of occurrence Position of occurrence

3. Press the MENU/ESC key to close the alert list.

8-3
8. ALERTS

8.3 Alert Log

The alert log shows the latest 50 alerts. When the log becomes full, the oldest entry is
erased to make room for current alerts.

1. Press the MENU/ESC key to open the main menu.

2. Select [5 Alert] then [4 Alert Log] to show the alert log.

Priority
Alert number Alert name

Date and time of Date and time

acknowledgement when occurrence
factor is gone
Date and time
of occurrence Position of occurrence
List no.

3. Press the MENU/ESC key to close the alert log.

8.4 How to Acknowledge Alerts

With the ACK/DELETE key
When an alert condition occurs, the buzzer sounds (except for a caution) and the
name of the alert appears at the bottom of the display. Press the ACK/DELETE key
to acknowledge the alert. The buzzer stops for a warning. If multiple alerts are violat-
ed, a high-priority alert is acknowledged in order.

How to acknowledge an alert from the alert list

1. Open the alert list (see section 8.2).
2. Use the cursorpad (S or T) to select the alert to acknowledge then press the NU/
CU ENT key.

How to acknowledge all alerts from the alert list

1. Open the alert list (see section 8.2).
2. Use the cursorpad (S) to select [Acknowledge All] then press the NU/CU ENT
key.

8-4
9. OTHER FUNCTIONS
This chapter describes menu items not described in other chapters.

9.1 Unit Setup Menu

You can set the units of measurement for distance, depth and water temperature.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [3 Unit Setup].

3. Distance: Select [1 Unit of Distance].

Depth: Select [2 Unit of Depth].
Water temperature: Select [3 Unit of Temperature].

Distance Depth Water temperature

4. Select the unit.
5. Press the MENU/ESC key to close the main menu.
Note: When changing the units of measurement, the setting values for the notice set-
ting can exceed the setting range. Reset the values (see paragraph 4.1.1 and
chapter 6).

9.2 Correction, Offset Menu

Position offset
You may apply an offset to the position to further refine its accuracy.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [4 Correction, Offset].

9-1
9. OTHER FUNCTIONS

3. Select [1 Position Offset].

4. Enter the offset value with the numeric keys. Mark your ships position on the chart
to calculate the error with latitude and longitude, and enter the values. To change
the coordinate, select "N" or "E" then press one of keys from 0 to 9.
5. Move the cursor to [Enter] then press the NU/CU ENT key.
6. Press the MENU/ESC key to close the main menu.
Note: When you set the position offset, the Datum indication changes to 999 (User
Defined).

Time difference
You can display time in UTC or local. For local time, enter the time difference between
local time and UTC.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [4 Correction, Offset].
3. Select [2 Local Time].
4. Select [1 Off] or [2 Manual Input].
[Off]: Uses UTC (Universal Time Coordinated). Go to
step 7.
[Manual Input]: Sets the time manually. Go to step 5.
5. Enter the difference time with the numeric keys. (If
necessary, switch + and - with pressing one of
keys from 0 to 9.)
6. Move the cursor to [Enter] then press the NU/CU
ENT key.
7. Press the MENU/ESC key to close the main menu.

LOCAL means the time

is local time.

9-2
 9. OTHER FUNCTIONS

Ship size and antenna position

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [4 Correction, Offset].
3. Select [3 Ship Size/Antenna Position].

1 : Set the width and length of your ship. Enter the values as correct as possible
because these values influence the output sentence POS. Note that these values
are the upper limits for the values of 2 .
2 : Set the mounting location for the antenna unit.
X: The horizontal distance from the reference position 0 to the antenna position.
Y: The forward distance from the reference position 0 to the antenna position.
Z: The height from the ship bottom to the antenna unit.
4. Enter the value for each item with the numeric keys. Refer to the figure at the right-
hand of the display.
5. Move the cursor to [Enter] then press the NU/CU ENT key.
6. Press the MENU/ESC key to close the main menu.

Attitude gauge
The attitude gauge is displayed when the data for roll, pitch or heave is received.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [4 Correction, Offset].
3. Select [4 Attitude Gauge].

4. Select [1 On] or [2 Off].

[On]: Displays the attitude gauge (see the illustration in "Highway Display" on
page 1-7) instead of the ships icon on the highway display. When the data for roll,
pitch or heave is not received, the ships icon is displayed.
[Off]: Hides the attitude gauge on the highway display.
5. Press the MENU/ESC key to close the main menu.

9-3
9. OTHER FUNCTIONS

9.3 GNSS Menu

9.3.1 How to select the positioning system

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [5 GNSS].

3. Select [1 Method].
4. Select [1 GPS].
5. Press the MENU/ESC key to close the main No. 2, 3 and 4
are reserved
menu.
for future use.

9.3.2 How to set the time for smoothing of position, speed and
speed average
Position smoothing: When the receiving condition is unfavorable, the GPS fix may
change randomly, even if the ship is dead in water. This change can be reduced by
smoothing the raw GPS fixes. The higher the setting the more smoothed the raw data,
however too high a setting slows response time to change in latitude and longitude.
This is especially noticeable at high ships speeds. Increase the setting if the GPS fix
changes randomly.

Speed smoothing: During position fixing, ships velocity (speed and course) is direct-
ly measured by receiving GPS satellite signals. The raw velocity data may change ran-
domly depending on receiving conditions and other factors. You can reduce this
random variation by increasing the smoothing. Like with latitude and longitude
smoothing, the higher the speed and course smoothing the more smoothed the raw
data. If the setting is too high, however, the response to speed and course change
slows.

Speed average: This speed is used to calculate the COG and SOG on the data dis-
play (see page 7-6).

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].

9-4
 9. OTHER FUNCTIONS

3. Select [2 GPS Smoothing].

4. Select [1 Position], [2 Speed] or [3 Speed Av-

erage].
5. Enter the time for smoothing with the numeric
keys.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main menu.

9.3.3 How to set the positioning condition

Satellite elevation
You can set the minimum elevation of satellites to use to fix position.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [3 Condition].

4. Select [1 Elevation Mask].

5. Enter the elevation with the numeric keys.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

Disable satellite
Every GPS satellite is broadcasting abnormal satellite number(s) in its Almanac,
which contains general orbital data about all GPS satellites. Using this information, the
GPS receiver automatically eliminates any malfunctioning satellite from the GPS sat-
ellite schedule. However, the Almanac sometimes may not contain this information.
You can disable an inoperative satellite manually. Enter satellite numbers (up to three
satellites) in three digits.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [3 Condition].

9-5
9. OTHER FUNCTIONS

4. Select [2 Not Used GPS].

5. Enter the satellite numbers with the numeric
keys.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

Core filter
1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [5 GNSS].
3. Select [3 Condition].
4. Select [5 Core Filter].
5. Select [1 No] or [2 Yes].
[No]: The tracking sensitivity is better than [Yes], however the ships
track is traced less smoothly than [Yes].
[Yes]: The ships track is traced smoother than [No], however the tracking sensi-
tivity is not as good as [No].
6. Press the MENU/ESC key to close the main menu.

9.3.4 How to select the RAIM function

RAIM (Receiver Autonomous Integrity Monitoring) is a diagnostic function which tests
the accuracy of the GPS signal. To use the RAIM function, enter the range (from own
ship in meters) for which you want to know position confidence. The receiver esti-
mates position confidence using range value and detected satellite error, and displays
(provided the RAIM function is active) the results as one of three levels of position con-
fidence, at the top right-hand corner of the display. The three levels are as follows:

Safe: GPS signal is normal. The positioning accuracy satisfies the setting value.
Caution: RAIM accuracy cannot be calculated. (Signals from more than five GPS
satellites are necessary.) The positioning accuracy does not satisfy the setting val-
ue.
Unsafe: GPS signal is abnormal, therefore the positioning accuracy is not reliable.
1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [5 GNSS].
3. Select [4 RAIM].

4. Select [1 Setting].

5. Select [1 On] or [2 Off].

[On]: Use RAIM function. Go to step 6.
[Off]: Dont use RAIM function. Go to step 9.

9-6
 9. OTHER FUNCTIONS

6. Select [2 Accuracy Level].

7. Enter the distance with the numeric keys.
8. Move the cursor to [Enter] then press the NU/
CU ENT key.
9. Press the MENU/ESC key to close the main
menu.

9.3.5 How to select the datum

Your unit is programmed to recognize most of the major chart systems of the world.
Although the WGS84 system, the GPS standard, is now widely used other categories
of charts still exist. Select the same datum which is used in your nautical charts. Select
[WGS84] (default setting), [WGS72] or [Other] (enter the datum number).

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [5 Datum].
4. Select an option. For [6 Other], go to step 5. For others, go to
step 7.

5. Enter the datum number with the numeric

keys.
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

9.3.6 How to set the initial position

You can set the initial position to use when the equipment is restarted.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [6 Init Position].
4. Enter the position with the numeric
keys. To change the coordinate, select
"N" or "E" then press one of keys from
0 to 9.
5. Move the cursor to [Enter] then press
the NU/CU ENT key.
6. Press the MENU/ESC key to close the main menu.

9-7
9. OTHER FUNCTIONS

9.3.7 How to set the positioning cycle

You can set the positioning cycle. Position is updated faster with the 5Hz or 10Hz set-
ting, however the accuracy may not be as good as with the 1Hz setting. It is recom-
mended to use the 1Hz setting for vessels other than high speed craft.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [9 Cycle].

4. Select [1 1Hz], [2 5Hz] or [3 10Hz]. The confirmation message appears.

5. Select [1 Yes]. The GP-170 restarts.

9.3.8 How to turn the anti-multipath mode on/off

You can prevent multipath, reflection of the satellite signal by some object, to prevent
position jump.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [5 GNSS].
3. Select [0 Anti-Multipath Filter].

4. Select [1 On] or [2 Off]. The confirmation message appears.

5. Select [1 Yes]. The GP-170 restarts.

9-8
 9. OTHER FUNCTIONS

9.4 Beacon/SBAS Menu

This menu sets the beacon and SBAS.

9.4.1 How to select the differential corrections to use

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [6 Beacon/SBAS].

3. Select [1 Mode].
4. Select an option.
[GNSS]: Uses neither beacon nor SBAS for posi-
tioning.
[GNSS+SBAS (+QZSS)]: Uses SBAS and QZSS.
[GNSS+Internal Beacon]*: Uses internal beacon.
[GNSS+Beacon (Data1, Data2 or Data4)]*: Uses
external beacon.
[Auto]: Switches mode among differential (bea-
con), SBAS and no use. The priority is Differential (beacon) > SBAS > No use.
* : See the table below.
With internal Without internal
Menu item
beacon receiver beacon receiver
GNSS+Internal Beacon Available Not available
GNSS+Beacon (Data1, Data2 or Data4) Not available Available
5. Press the MENU/ESC key to close the main menu.

9.4.2 How to set SBAS and beacon

SBAS
1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [6 Beacon/SBAS].
3. Select [2 SBAS Search].

4. Select [1 Auto] or [2 Manual].

[Auto]: Automatically selects the satellite on the highest elevation among available
satellites. Go to step 7.
[Manual]: Selects the satellite manually. Go to step 5.

9-9
9. OTHER FUNCTIONS

5. Enter the satellite number with the numeric

keys (setting range: 120 to 138).
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

Beacon
1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [6 Beacon/SBAS].
3. Select [3 Beacon Station].
4. Select [1 Auto], [2 Set Parameter] or [3 Select
Station ID].
[Auto]: Automatically selects the nearest station
among available stations. Go to step 8.
[Set Parameter]: Selects the station with entering the frequency or selecting the
bit rate. Go to step 5.
[Select Station ID]: Selects the station from the station list (requires the internal
beacon receiver). Go to step 7.
5. Select [1 Frequency] or [2 Bit Rate].

6. For [Frequency], enter the frequency with the numeric keys and move the cursor
to [Enter] then press the NU/CU ENT key.
For [Bit Rate], select the bit rate from five options.
Go to step 8.
7. Use the cursorpad (S or T) to select the station ID then press the NU/CU ENT
key.
8. Press the MENU/ESC key to close the main menu.

9.4.3 How to open the station data

Station database
Note: This menu requires the internal beacon receiver.
1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [6 Beacon/SBAS].

9-10
 9. OTHER FUNCTIONS

3. Select [4 Station Database] to show the [Station List] for 1020 station data.

Enter the station no.

(e.g. 0001) with the
numeric key then press
the NU/CU ENT key to
display the information
of the selected station
at the right side of the
screen.

4. Press the MENU/ESC key to close the main menu.

Registered stations
You can register up to 20 beacon stations.

Note: This menu requires the internal beacon receiver.

1. Press the MENU/ESC key to open the main menu.
2. Select [8 System Setting] then [6 Beacon/SBAS].
3. Select [5 Registered Stations] to show the [Edit Station Information] list.

9-11
9. OTHER FUNCTIONS

4. Use the cursorpad (S or T) to select ID no. then press the NU/CU ENT key.

5. Edit the name, position, frequency or bit rate.

6. Press the MENU/ESC key to close the main menu.

Disable satellite
You can disable a maximum of three satellites.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [6 Beacon/SBAS].
3. Select [6 Not Used Satellite].

4. Select [1 SBAS] or [2 QZSS].

5. Enter the disable satellite numbers with the
numeric keys (setting range: 120 to 138 for
SBAS, 183 to 187 and 193 to 197 for QZSS).
6. Move the cursor to [Enter] then press the NU/
CU ENT key.
7. Press the MENU/ESC key to close the main
menu.

9.5 Language
The available languages are English and Japanese.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [1 Language].
3. Select a language.
4. Press the MENU/ESC key to close the main menu.

9-12
 9. OTHER FUNCTIONS

9.6 I/O Menu

Besides its fundamental function of displaying position, the GP-170 can also output
various data to external equipment. Before outputting data to external equipment, first
determine what data the external equipment requires. Output only necessary data to
ensure data will be output correctly.

All data transmitted by marine electronics equipment are prefixed with a two character
code called a talker. The same talker must be shared by the transmitting and receiving
equipment to transmit and receive data successfully.

9.6.1 How to set the output 1, 2, 3 or 4

1. Press the MENU/ESC key to open the main menu.
2. Select [7 I/O].

3. Select [1 Output Data1].

4. Select [1 Mode].
5. Select [1 IEC/NMEA] or [2 RTCM].
[IEC/NMEA]: NMEA sentence output
[RTCM]: Binary output
6. Select [2 Format].
7. Select [1 IEC 61162-1 Ed.4], [2 IEC 61162-1 Ed.3],
[NMEA V2.0] or [NMEA V1.5].

8. Select [3 Talker].
9. Select [1 GP] or [4 GN].

No. 2 and 3 are reserved

for future use.

9-13
9. OTHER FUNCTIONS

10. Select [4 BPS].

11. Select [1 4800 bps], [2 9600 bps] or [3 38400 bps].

12. Select [5 Sentence].

13. Use the cursorpad to select the sentence then press the NU/CU ENT key.
14. Use the cursorpad (W or X) to select the TX interval. TX interval is available in [-
- -] (off), [0.1s]*, [0.2s]*, [1s], [2s], [3s], [4s], [5s], [6s], [10s], [15s], [20s], [30s],
[60s] and [90s].
*: Only for GGA, GLL, GNS, RMC and VTG when selecting [38400 bps] at step 11.
15. Press the NU/CU ENT key.
Note 1: Keep the Load Rate below 100% when setting the TX intervals. The TX
interval for other than the ZDA sentence cannot be guaranteed if the rate exceeds
100%.
Note 2: For the TX interval of [0.1s] or [0.2s], set the positioning cycle (refer to
paragraph 9.3.7) as follows:
For [0.1s], set the positioning cycle at 10Hz.
For [0.2s], set the positioning cycle at 5Hz or 10Hz.

16. Set [2 Output Data2], [3 Output Data3] and [4 Output Data4] as well.
17. Press the MENU/ESC key to close the main menu.

9.6.2 How to set the Ethernet

1. Press the MENU/ESC key to open the main menu.
2. Select [7 I/O] then [5 Ethernet].
3. Select [1 Sentence].
4. Use the cursorpad to select the sentence
then press the NU/CU ENT key.
5. Use the cursorpad (W or X) to select the TX
interval. TX interval is available in [- - -] (off),
[0.1s]*, [0.2s]*, [1s], [2s], [3s], [4s], [5s], [6s],
[10s], [15s], [20s], [30s], [60s] and [90s].
*: Only for GGA, GLL, GNS, RMC and VTG.

9-14
 9. OTHER FUNCTIONS

6. Press the NU/CU ENT key.

Note: For the TX interval of [0.1s] or [0.2s], set the positioning cycle (refer to
paragraph 9.3.7) as follows:
For [0.1s], set the positioning cycle at 10Hz.
For [0.2s], set the positioning cycle at 5Hz or 10Hz.

7. Press the MENU/ESC key to close the sentence window.

8. Press the MENU/ESC key to open the main menu.
9. Select [7 I/O] then [5 Ethernet].
10. Select [2 IP ADR /Port].

11. Enter the IP address and port (setting range: 49152 to 65535) with the numeric
keys. When setting dual configuration (see section 9.7), set 239.192.000.004 for
IP address and 60004 for port.
12. Move the cursor to [Enter] then press the NU/CU ENT key.
13. Select [3 MP].
14. Select [1 Enable] or [2 Disable]. For [1 Enable], go to
step 15. For [2 Disable], go to step 18.
15. Select [4 MP IP ADR /Port].
16. Enter the MP IP address and port with the numeric keys.
17. Move the cursor to [Enter] then press the NU/CU ENT key.
18. Press the MENU/ESC key to close the main menu.

9.6.3 How to select the input data

1. Press the MENU/ESC key to open the main menu.
2. Select [7 I/O] then [6 Data Source Select].

3. Select [1 HDG].
4. Select the port for heading data. For [5 Ethernet], go to
step 5. For [1 Data1],
[2 Data2] or [4 Data4], go to step 6.

9-15
9. OTHER FUNCTIONS

5. When selecting [5 Ethernet], do the following:

1) Press the ACK/DELETE key to move the cursor to the leftmost of the input po-
sition.

Press the
ACK/DELETE key.

Backspace
2) Enter the Ethernet SFI with the cursorpad and the numeric keys (combination
of two alphabets and four numerals). SFI (System Function ID) is an identifi-
cation code used by the system.
3) Move the cursor to [Enter] then press the NU/CU ENT key. Go to step 9.
Note: Set the SFI to eliminate overlap with other ones.
6. Select [1 HDG].
7. Select [7 User Priority]. High Low
8. Enter the priority for heading
data by data number. For ex-
ample, to set the priority order
as Data1, Data2, Data4, enter
1, 2, 4.
9. Set the input data for [2 STW]
(speed through water),
[3 SST] (sea surface temperature) and [4 DPT] (water depth) as well.
10. Press the MENU/ESC key to close the main menu.

9.6.4 Line monitor log

Line monitor
The data output from the data ports (Data1 - Data4) can be monitored, and the data
can be saved to a USB flash memory.

1. Press the MENU/ESC key to open the main menu.

2. Select [7 I/O] then [7 Line Monitor].

9-16
 9. OTHER FUNCTIONS

3. Select [Data1] (or 2, 3, 4).

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09,00 42 $GPZDA,012613.00,01,11,2012,-09,00 45
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- $GPDTM,W84,,00.0000,N,00.0000,E,,W84 41
09,00 42 $GPGGA,012614.00,0844.7963,S,11512.6084,E,2,6,0.7,15,M,,M,
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- , 78
09,00 42 $GPVTG,258.0,T,256.5,M,0.1,N,0.2,K,D 2E
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- $GPZDA,012613.00,01,11,2012,-09,00 45
09,00 42 $GPDTM,W84,,00.0000,N,00.0000,E,,W84 41
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- $GPGGA,012614.00,0844.7963,S,11512.6084,E,2,6,0.7,15,M,,M,
09,00 42 , 78
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- $GPVTG,258.0,T,256.5,M,0.1,N,0.2,K,D 2E
09,00 42 $GPZDA,012613.00,01,11,2012,-09,00 45
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- $GPDTM,W84,,00.0000,N,00.0000,E,,W84 41
09,00 42 $GPGGA,012614.00,0844.7963,S,11512.6084,E,2,6,0.7,15,M,,M,
$YCMTW,027.32,C$GPZDA,012614.00,01,11,2012,- , 78
09,00 42 $GPVTG,258.0,T,256.5,M,0.1,N,0.2,K,D 2E

To save the log data to a USB flash memory, go to step 4. Otherwise, go to step 7.
4. Set a USB flash memory in the USB port.
Note 1: Do not use an encrypted USB flash memory.
Note 2: Keep water away from the unit when the USB flash memory is inserted.
The USB port is not waterproof while its cover is removed.
5. Press the NU/CU ENT key.
Note: Do not save the log from multiple ports simultaneously. The log data may
not be saved correctly depending on the specification or capacity of the USB flash
memory.
6. Press the NU/CU ENT key to complete the saving.
Note: Remove the USB flash memory after the saving is completed.
7. Press the MENU/ESC key to close the main menu.

Ethernet error counter

1. Press the MENU/ESC key to open the main menu.
2. Select [7 I/O] then [7 Line Monitor].
3. Select [0 Ethernet Error
Counter].
Press the ACK/DE-
LETE key to reset all
counts to 0.
4. Press the MENU/ESC
key to close the main
menu.

9-17
9. OTHER FUNCTIONS

9.7 How to Set Dual Configuration

You can configure two dual differential GPS navigator systems and an interface unit.

1. Press the MENU/ESC key to open the main menu.

2. Select [7 I/O] then [8 Dual].
3. Select [1 No], [2 Serial (Data2)] or [3 Ethernet].
[No]: Dont set dual configuration.
[Serial (Data2)]: Sets dual configuration using data2.
[Ethernet]: Sets dual configuration using Ethernet.
4. Press the MENU/ESC key to close the main menu.

9.8 How to Set ECDIS Sync Configuration

When connecting the ECDIS (FMD-3x00 series) via LAN, you can display the ECDIS-
set monitored route on the display of the GP-170.

1. Press the MENU/ESC key to open the main menu.

2. Select [3 Navigation] then [4 ECDIS Sync].

3. Select [2 ECDIS IP ADR].

4. Enter the IP address for the connected ECDIS with the numeric keys.
5. Move the cursor to [Enter] then press the NU/CU ENT key.
6. Select [3 ECDIS SFI].
7. Press the ACK/DELETE key to move the cursor to the leftmost of the input posi-
tion.

Press the
ACK/DELETE key.

Backspace
8. Enter the SFI for the connected ECDIS with the cursorpad and the numeric keys
(combination of two alphabets and four numerals).
9. Move the cursor to [Enter] then press the NU/CU ENT key.

9-18
 9. OTHER FUNCTIONS

10. Select [1 Mode].

11. Select [2 On].

Note: When selecting [2 On], you can not set a destination on the GP-170.
12. Press the MENU/ESC key to close the main menu.
To turn the synchronization off, select [1 Off] at step 11.

Note 1: When selecting [1 Off] during the synchronization with the ECDIS, the desti-
nation is canceled on the GP-170.
Note 2: The GP-170 uses waypoint information from the ECDIS when they are
synched to one another. Therefore, some delay occurs between the arrival notice and
next waypoint. This is not an indication of malfunction but the difference of criterion for
waypoint updating between the ECDIS and the GPS receiver. If you do not need the
arrival notice on the GP-170, turn it off (see paragraph 6.2.1).
Note 3: The no. 100 route on the route list is reserved for the monitored route output
from the ECDIS. This route is automatically written over when the GP-170 receives a
new monitored route.

9.9 How to Change the User Password

You can set a four-character password to prevent unauthorized entry into certain
menus. The default setting is no password.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [2 Plotter].
3. Select [9 Password].
Note: The default setting is "0000", which
means no password is set. When the pass-
word is "0000", the [Input Password] screen
does not appear.
4. Enter the password (four characters) with the
numeric keys.

5. Enter the new password (four characters)

with the numeric keys.

6. Enter the password (four characters) with the numeric

keys again.
7. Press the NU/CU ENT key.
8. Press the MENU/ESC key to close the main menu.

9-19
9. OTHER FUNCTIONS

9.10 How to Set the Demo Mode

A demo mode, which shows internally generated navigation data, is provided to ac-
quaint you with the features of the GP-170. You can set the demo mode as follows:

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [8 Demo].

3. Select [1 Parameter].

4. Enter each setting with the numeric keys refer to the left figure.
[Date]: Set the starting date and time in UTC.
[Position]: Set the starting position. To change the coordinate, select "N" or "E"
then press one of keys from 0 to 9.
[1. Direction]: Set the direction for translatory movement.
[2. SOG]: Set the speed for translatory movement in kn.
[3. Direction]: Select the direction for rotary motion from [CW] (clockwise) and
[CCW] (counterclockwise).
[4. Radius]: Set the radius for rotary motion in NM.
[5. Angular Speed]: Set the angular speed for rotary motion.
5. Move the cursor to [Start] then press the NU/CU ENT key. The equipment re-
starts. The icon (simulation) appears at the top left corner of the screen.
Note: To cancel the demo mode, turn the power off and on.

9-20
10. MAINTENANCE, TROUBLE-
SHOOTING

NOTICE
Do not apply paint, anti-corrosive sealant
or contact spray to plastic parts or
equipment coating.

Those items contain products that can

damage plastic parts and equipment coating.

10.1 Maintenance
Regular maintenance is important to maintain performance. Check the following
points to help maintain performance.

Check that connectors on the rear panel are firmly tightened and free of rust.
Check that the ground system is free of rust and the ground wire is tightly fastened.
Check that battery terminals are clean and free of rust.
Check if the antenna unit is damaged. If damaged, replace.
Dust or dirt may be removed from the cabinet with a soft cloth. Water-diluted mild
detergent may be used if desired. DO NOT use chemical cleaners to clean the dis-
play unit; they may remove paint and markings.
Wipe the LCD carefully to prevent scratching, using tissue paper and an LCD clean-
er. To remove dirt or salt deposits, use an LCD cleaner, wiping slowly with tissue
paper so as to dissolve the dirt or salt. Change paper frequently so the salt or dirt
will not scratch the LCD. Do not use solvents such as thinner, acetone or benzene
for cleaning. Also, do not use degreaser or antifog solution, as they can strip the
coating from the LCD.

Life of LCD
The life of the LCD is approximately 60,000 hours. The actual number of hours de-
pends on ambient temperature and humidity. When the brilliance cannot be raised suf-
ficiently, ask your dealer about replacement.

10-1
10. MAINTENANCE, TROUBLESHOOTING

10.2 Fuse Replacement

WARNING
Use the proper fuse.

A wrong fuse can damage the equipment

and cause fire.

The fuse (type: FGBO-A 125V 3A PBF, code no.: 000-155-850-10) in the power cable
protects against overvoltage and equipment trouble. If you cannot turn on the power,
first check the fuse. If the fuse has blown, replace the fuse with the specified fuse. If
the fuse blows again after replacement, contact your dealer.

10.3 Troubleshooting
This section provides simple troubleshooting procedures which the user can follow to
restore normal operation. If you cannot restore normal operation, do not attempt to
check inside the unit. Any trouble should be referred to a qualified technician.

Symptom Remedy
You cannot turn on the power. Check for damaged power cable and connector.
Check if the power cable is firmly fastened.
Check the battery for proper voltage output.
Check if the fuse in the power cable has blown.
No picture appears. Adjust the brilliance using the BRILL key.
There is no response when a Turn off and on the power. If no change, ask your dealer.
key is pressed.
Position is not fixed. Check if the antenna connector is firmly fastened.
Check the number of satellites on the integrity display.
If there are two or less, check for obstructions between
antenna unit and satellites.
Clear the GPS memory on the [8 System Setting] -
[9 Clear Memory] - [2 Clear GPS] menu.
Position is wrong. Check if the correct geodetic chart system is selected
on the [8 System Setting] - [5 GNSS] - [5 Datum]
menu.
Enter the position offset on the [8 System Setting] -
[4 Correction, Offset] - [1 Position Offset] menu.
Bearing is wrong. Check the magnetic variation on the [8 System Setting] -
[2 Plotter] - [2 Magnetic Variation] menu.
Data are not transmitted to Check if the data format is correct on the [7 I/O] menu.
external equipment. The TX interval may be set to off. Select the proper in-
terval.
Check the appropriate settings on the external equip-
ment.
Check the connections:
GP-170 External equipment
TD4-A RD4-A
TD4-B RD4-B

10-2
 10. MAINTENANCE, TROUBLESHOOTING

10.4 Equipment Information

You can display information about this equipment from the menu.

1. Press the MENU/ESC key to open the main menu.

2. Select [6 Maintenance] then [1 Information].

X: Board version no.

XX: Program version no.

3. Select [1 Main], [2 Panel], [3 GPS], [4 Beacon] (requires internal beacon receiver)

or [5 Database].

GPS
Main

Panel
Beacon

Database
4. Press the NU/CU ENT key to close each information window.
5. Press the MENU/ESC key to close the main menu.

10-3
10. MAINTENANCE, TROUBLESHOOTING

10.5 Self Test

The self test checks the ROM, RAM, input/output data, GPS core, Beacon core, key-
board and LCD performance. The user can do the tests to help the service technician
in troubleshooting.

Memory test
1. Press the MENU/ESC key to open the main menu.
2. Select [6 Maintenance] then [2 Self Test].

3. Select [1 Memory Test]. The test results are displayed as "OK", "NG" (No Good)
or " ". If any NG is displayed, contact your dealer. The test result of DATA3,
checked using a dedicated connector at the factory, is normally displayed as "--".

4. Press the MENU/ESC key to close the memory test window.

10-4
 10. MAINTENANCE, TROUBLESHOOTING

Keyboard test
1. Press the MENU/ESC key to open the main menu.
2. Select [6 Maintenance] then [2 Self Test].
3. Select [2 Keyboard Test].

4. Press each key one by one. A key's corresponding location on the display turns
blue if the key is normal.
5. Press the MENU/ESC key three times to close the keyboard test window.

LCD test
1. Press the MENU/ESC key to open the main menu.
2. Select [6 Maintenance] then [2 Self Test].
3. Select [3 LCD Test]. The operation instructions display opens.

10-5
10. MAINTENANCE, TROUBLESHOOTING

4. Press the NU/CU ENT key. Each press of this key changes the LCD pattern in the
sequence shown below.

Black White Red Green

Blue Checker board RGB gradation Operation instructions

display
Note: You can cancel the test at any time by pressing the MENU/ESC key.
5. Press the MENU/ESC key to close the test pattern window.

Automatic test
The memory, keyboard and LCD tests are automatically tested.

1. Press the MENU/ESC key to open the main menu.

2. Select [6 Maintenance] then [2 Self Test].
3. Select [4 Automatic Test]. The GP-170 automatically repeats the following se-
quence.
Information screen (refer to section 10.4) Memory Keyboard LCD
Note 1: You can cancel the test at any time by pressing the MENU/ESC key.
Note 2: The test stops if the check result for an item other than [Data3] is "NG" or
" ".
4. Press the MENU/ESC key to close the automatic test window.

10.6 Backup
The GP-170 can save or load the settings and registered data.

1. Set a USB flash memory in the USB port.

Note 1: Do not use an encrypted USB flash memory.
Note 2: Keep water away from the unit when the USB flash memory is inserted.
The USB port is not waterproof while its cover is removed.
2. Press the MENU/ESC key to open the main menu.
3. Select [6 Maintenance] then [3 Backup].

10-6
 10. MAINTENANCE, TROUBLESHOOTING

4. Select [1 Backup User Setting], [2 Load User Setting], [3 Import GPX (Overwrite)],
[4 Import GPX (Addition)] or [5 Export GPX].
[Backup User Setting]: Saves the current settings to a USB flash memory.
[Load User Setting]: Loads the saved settings from a USB flash memory.
[Import GPX (Overwrite)]: Imports the GPX data (marks, waypoints and routes)
from a USB flash memory. The GPX data in the GP-170 are deleted.
[Import GPX (Addition)]: Imported data is added to the GPX data in the GP-170.
(You can store a maximum of 2,000 marks, 100 routes, and 1,000 waypoints.)
[Export GPX]: Exports the GPX data (marks, waypoints and routes) in the GP-170
to a USB flash memory.
The confirmation message appears.

5. Select [1 Yes]. The message "Now Processing.... "appears.

After the process is complete, the GP-170 operates as follows, or do the following
according the menu item selected at step 4:
[Backup User Setting]: The message window automatically closes.
[Load User Setting], [Import GPX (Overwrite)], [Import GPX (Addition)]: The
GP-170 restarts.
[Export GPX]: After the message window shows 100%, press the MENU/ESC
key to close the message window.
Note: If a USB flash memory is not set, the following message appears.

Note: Route no. 100 is reserved for the monitored route sent from an ECDIS. A route
imported from a USB flash memory may also be assigned this number when that route
becomes the 100th route registered in the GP-170. Whenever a monitored route is re-
ceived, route no. 100 is written over to import the monitored route.

10-7
10. MAINTENANCE, TROUBLESHOOTING

10.7 How to Clear the Memory

You can clear display setting, GPS memory, marks and routes to start afresh.

1. Press the MENU/ESC key to open the main menu.

2. Select [8 System Setting] then [9 Clear Memory].

3. Select [1 Clear Display Setting], [2 Clear GPS], [3 Clear All] or [4 Clear

Mark&Route].
[Clear Display Setting]: Clears the display setting.
[Clear GPS]: Clears the GPS memory.
[Clear All]: Clears both display setting and GPS memory.
[Clear Mark&Route]: Clears marks and routes.
The confirmation message appears.

4. Select [1 Yes]. The equipment restarts.

10-8
APPENDIX 1 MENU TREE
Note: If setting invalid data in numerical entry, two beeps sound. Reenter the correct data.

1 Display Bold Italic : Default

Back Ground (White , Black)
Grid (DeepPink, GreenYellow, Green , Cyan, Purple, Blue, White/Black, Off)
Lines Color
XTL Line (DeepPink, GreenYellow, Green, Cyan , Purple, Blue, White/Black, Off)
Heading Line (DeepPink, GreenYellow, Green, Cyan , Purple, Blue, White/Black, Off)
Course Vector (DeepPink, GreenYellow, Green, Cyan, Purple , Blue, White/Black, Off)
Course Vector Time (10 min , 20 min, 30 min, 1 H, 2 H, 3 H, 5 H, 6 H, Continuous)
Time Mark (DeepPink, GreenYellow, Green, Cyan, Purple, Blue, White/Black, Off )
Mark/WPT Name (On (All) , On (WPT), Off)
Cursor Size (Large , Small)
Manual Calculation (Open the setting window
window.))
Set/Drift AVR (Off , 10 min, 20 min, 30 min, 1 H, 2 H, 3 H, 5 H, 6 H)
Display Select
Main*1 (On ) *1: Can not be changed.
Integrity*1 (On )
Highway (On , Off)
Course (On , Off)
Data ((On , Off))
Data Overlay
Weather (Type16) (On, Off )
2 Track/Mark
Track REC (Time, Distance )
Track Color (DeepPink, GreenYellow, Green, Cyan, Purple, Blue, White/Black )
Mark Shape : Default
Mark Color (DeepPink, GreenYellow, Green, Cyan, Purple, Blue, White/Black )
Mark Line (None , Solid, Dash, Alternate Dash)
Line Color (DeepPink, GreenYellow, Green, Cyan, Purple, Blue, White/Black )
Event Mark (Same as Mark Shape.)
Event Color (DeepPink, GreenYellow, Green, Cyan, Purple, Blue, White/Black )
Erase Track
Erase Track (Yes, No )
Erase Mark (Yes, No )
3 Navigation
Mark Registration (Open the mark list.)
Route Registration (Open the route list.)
Display ETA/TTG (Off , ETA, ETA+TTG)
ECDIS Sync
Mode (Off , On)
ECDIS IP ADR (Open the entry window.)
ECDIS SFI (Open
(O th
the entry
t window.)
i d )
Goto (Mark Number) (Open the entry window.)
Goto (Route Number) (Open the entry window.)
Goto Cancel
4 Notice Setting
Arrival/Anchor (Arrival, Anchor, Off )
XTE (Off , On)
Ship Speed
Status (Off , In, Out)
Speed (Open the setting window.)
1

AP-1
APPENDIX 1 MENU TREE

1
Trip
Status (Stop , Start/Restart, Clear)
Range (Open the setting window.)
Sound
Notice Sound (Off , On, Continuous)
Key Sound (On , Off)

5 Alert
Active Alert (Open the active alert list.)
Mode*2 (Alert I/F 1 , Alert I/F 2, Legacy) *2: For serviceman.
Remote Ack I/F*2 (Ack , BuzzerStop)
Alert Log (Open the alert log.)

6 Maintenance
Information
Main (Open the information for main board.)
Panel (Open the information for panel board.)
GPS (Open the information for GPS board.)
Beacon (Open the information for beacon board.)
Database (Open the information for database.)
Self Test
Memory Test
Keyboard
K b d Test T t
LCD Test
Automatic Test
Sound Test*2
Backup
Backup User Setting (Yes, No )
Load User Setting (Yes, No )
Import GPX (Overwrite) (Yes, No )
Import GPX (Addition) (Yes, No )
Export GPX (Yes, No )
SW/Database Update*2
Chk the available software
Main: Application
Main: Boot
GPS: Application
Beacon: Application
Beacon: Boot
Chk the new data table
Datum
WMM
Exchange* 2

Service*2
Tech Menu*2

7 I/O *3: Reserved for

Output Data1 to 4 future use.
Mode (IEC/NMEA , RTCM)
Format (IEC 61162-1 Ed.4 , IEC 61162-1 Ed.3, NMEA V2.0, NMEA V1.5)
Talker (GP , GL*3, GA*3, GN)
BPS (4800 bps , 9600 bps, 38400 bps) (38400 bps is default for Output Data4.)
Sentence (AAM: Off, APA: Off, APB: Off, BOD: Off, BWC: Off, BWR: Off, BWW: Off,
GBS: Off,
Off GGA: 1s,
1s GLL: Off,
Off GNS: Off,
Off GRS: Off,
Off GSA: Off,
Off GST: Off,
Off GSV: Off,
Off
RMB: 1s, RMC: Off, Rnn: Off, RTE: Off, VDR: Off, VTG: 1s, WCV: Off, WNC: Off,
WNR: Off, WPL: Off, XTE: Off, ZDA: 1s)
1

AP-2
 APPENDIX 1 MENU TREE

1
Ethernet
Sentence (Options are same as Output Data1 excluding APA, Rnn and WNR.)
IP ADR/Port (Open the entry window.)
MP (Enable, Disable )
MP IP ADR/Port (Open the entry window.)
Data Source Select
HDG (Data1 , Data2, Data4, Ethernet, User Priority)
STW (Data1 , Data2, Data4, Ethernet, User Priority)
SST (Data1 , Data2, Data4, Ethernet, User Priority)
DPT (Data1 , Data2, Data4, Ethernet, User Priority)
Line Monitor
Data1 (Open the line monitor for serial data1.)
Data2 (Open the line monitor for serial data2.)
Data3 (Open the line monitor for serial data3.)
Data4 (Open the line monitor for serial data4
data4.))
GPS Core*2 (No , Yes) *2: For serviceman.
Beacon* (No , Yes)
2

Ethernet Error Counter (Open the Ethernet Error data list.)

Dual (No , Serial (Data2), Ethernet

8 System Setting
Language (English , )
Plotter
Bearing Reference (True , Magnetic)
Magnetic Variation (Auto , Manual)
Calculation (RL , GC)
User Defined
Custom 1 (SOG, COG, RNG , BRG, SST, DPT, XTD, Average COG,
Average SOG, TTG, ETA, TRIP, TRIP TIME, Route Distance, Route TTG,
ETA (Next), VTD, SET, DRIFT, STW, HDG, Mark/MAX Mark,
Track/MAX Track, ETA/ETA (Plan))
Custom 2 (Same as Custom 1; SOG )
Custom 3 (Same as Custom 1; HDG )
Custom 4 (Same as Custom 1; COG )
Custom 5 (Same as Custom 1; ETA )
Custom 6 (Same as Custom 1; Route Distance )
Custom 7 (Same as Custom 1; ETA/ETA (Plan) )
Custom 8 (Same as Custom 1; TTG )
Initial XTL/Arrival/Stay
XTL (Open the setting window.)
Arrival Radius (Open the setting window.)
Stay Time (Open the setting window.)
SOG (Open the setting window.)
Departure Time (Open the setting window.)
Route Color (DeepPink, GreenYellow, Green, Cyan , Purple, Blue, White/Black)
List Number (Keeping , Not Saved)
List Information (L/L , Range/Bearing)
Password (Open the setting window.)
Unit Setup
Unit of Distance (NM , km, SM)
Unit of Depth (m, ft , fm)
Unit of Temperature (C , F)
Correction, Offset
Position Offset (Open the setting window
window.))
Local Time (Off , Manual Input)
Ship Size/Antenna Position (Open the setting window.)
Attitude Gauge (On , Off)
1

AP-3
APPENDIX 1 MENU TREE

1
GNSS
Method (GPS , GLONASS*3, GALILEO*3, Multi*3)
GPS Smoothing
Position (Open the setting window.)
Speed (Open the setting window.)
Speed Average (Open the setting window.)
Condition
Elevation Mask (Open the setting window.)
Not Used GPS (Open the setting window.)
Not Used GLONASS*3 (Open the setting window.) *3: Reserved for
Not Used GALILEO* (Open the setting window.)
3
future use.
Core Filter (No, Yes )
RAIM
Setting (On , Off)
Accuracy
A L
Levell (O
(Open th
the setting
tti window.)
i d )
Datum (WGS84 , WGS72, PZ90, CK42, CK95, Other)
Init Position (Open the setting window.)
Roll Over*2 (Open the setting window.) *2: For serviceman.
2
Source* (Inner Receiver , Data1, Data2, Data4)
Cycle (1Hz , 5Hz, 10Hz)
Anti-Multipath Filter (On, Off )
Beacon/SBAS
Mode (GNSS , GNSS+SBAS (+QZSS), GNSS+Internal Beacon*4,
GNSS+Beacon (Data1)*4, GNSS+Beacon (Data2)*4, GNSS+Beacon (Data4)*4, Auto)
SBAS Search (Auto , Manual)
Beacon Station *4: See the table below.
Auto
Set Parameter
Frequency (Open the setting window.)
Bit Rate (25bps,
(25bps 50bps
50bps, 100bps , 150bps,
150bps 200bps)
Select Station ID* (Open the station list.)
5

Station Database*5 (Open the station list.) *5: Requires internal

Registered Stations*5 (Open the station information list.) beacon receiver.
Not Used Satellite
SBAS (Open the setting window.)
QZSS (Open the setting window.)
Beacon Reset
Reset*2
Modem Test*2 (Off , On)
Network
SNTP Server (On , Off)
Ethernet*2
Equipment ID (Open the setting window. )
SFI*2
Demo
Parameter (Open the setting windowwindow.))
Clear Memory
Clear Display Setting (Yes, No )
Clear GPS (Yes, No )
Clear All (Yes, No )
Clear Mark&Route (Yes, No )
Factory Default*2 (Yes, No )

*4
Menu item w/internal beacon receiver w/o internal beacon receiver
GNSS+Internal Beacon Available Not available
GNSS+Beacon (Data1, Data2 or Data4) Not available Available

AP-4
APPENDIX 2 LIST OF TERMS/SYM-
BOLS
The following table shows the terms and symbols used in the GP-170.

Terms
Terms Meaning
ACK Acknowledge
ADR Automotive Dead Reckoning
ALARM Alarm
ANCH Anchor Watch
ANT Antenna
APR April
AUG August
AUTO Automatic
AVR Average
BRG North-referenced bearing
BRILL Brilliance
CAL Calibrate
CCRP Consistent Common Reference Point
CLR Clear
CNCL Cancel
COG Course Over the Ground
CONT COntrast
CPU Central Processing Unit
CRS Course
CU Course Up
CURS Cursor
DATE Date
DAY Day
DEC December
DEL Delete
DEP Departure
DEST Destination
DGLONASS Differential GLONASS
DGNSS Differential GNSS
DGPS Differential GPS
DISP Display
DIST Distance
DNV Det Norske Veritas
DPT Depth
DR Dead Reckoning, Dead Reckoning Position
DRIFT Drift
DTM Datum
E East
EGNOS European Geo-Stationary Navigational Overlay System
ENT Enter

AP-5
APPENDIX 2 LIST OF TERMS/SYMBOLS

Terms Meaning
EQUIP Equipment
ERR Error
ETA Estimated Time of Arrival
EVENT Event
EXT External
FEB February
FIX Fix
FREQ Frequency
FULL Full
GC Great Circle
GCD Great Circle Distance
GLONASS Global Opening Navigation Satellite System
GND Ground
GNSS Global Navigation Satellite System
GPS Global Positioning System
GPX GPS eXchange Format
GRID Grid
HDG Heading
HDOP Horizontal Dilution Of Precision
HL Heading Line
H UP Head Up
ID Identification
IEC International Electrotechnical Commission
IN In
IND Indication
INFO Information
INP Input
INT Interval
I/O Input/Output
JAN January
JUL July
JUN June
LAT Latitude
L/L Latitude and Longitude
LOG Log
LON Longitude
MAG Magnetic
MAN Manual
MAR March
MAY May
MENU Menu
MIN Minimum
MOB Man Overboard
MSTR Master
N North
NAV Navigation
NMEA National Marine Electronics Association
NOV November
NT Night

AP-6
 APPENDIX 2 LIST OF TERMS/SYMBOLS

Terms Meaning
NTP Network Time Protocol
NU North Up
OCT October
OFFSET Offset
ON On
OS Own Ship
OUT Out/Output
PDOP Positional Dilution Of Precision
POSN Position
PRN Pseudo-Random-Noise
PWR Power
QZSS Quasi-Zenith Satellite System
RAIM Receiver Autonomous Integrity Monitoring
REF Reference
RL Rhumb Line
RLD Rhumb Line Distance
RM Relative Motion
RMS Root Mean Square
RNG Range
ROT Rate Of Turn
ROUTE Route
Rx, RX Receive
S South
SAT Satellite
SBAS Satellite Base Argument System
SEL Select
SEP September
SET Set (i.e., set and drift, or setting a value)
SIM Simulation
SNR Signal to Noise Ratio
SOG Speed Over the Ground
SPD Speed
SST Sea Surface Temperature
STN Station
STW Speed Through the Water
SV Space Vehicle
SYM Symbol(s)
T True
TCPA Time to CPA
TIME Ships Time, Time
TM True Motion
TOA Time Of Arrival
TOD Time Of Departure
TTG Time To Go
UTC Coordinated Universal Time, Universal Time Coordinated
VAR Variation
VECT Vector
VTD Velocity to Destination
W West

AP-7
APPENDIX 2 LIST OF TERMS/SYMBOLS

Terms Meaning
WARNING Warning
WAT Water
WER Word Error Rate
WGS World Geodetic System
WPT Waypoint
XTD Cross (=X) Track Distance
XTL Cross (=X) Track Limit
XTE Cross (=X) Track Error

Symbols
Symbols Meaning
Marks

Cursor (Left: Large size, Right: Small size)

Own ship
MOB (Man Overboard) mark
North mark

Chart mode (The cursor is turned off.)

Cursor mode (The cursor is turned on.)
Plotting stopped
Skipped waypoint
Reversed route
Active unacknowledged warning
Active acknowledged warning
Active responsibility transferred warning
Rectified unacknowledged warning
Silenced warning
Caution
Attitude gauge

Anchor notice
Arrival notice
Ship speed notice
Trip notice
XTE notice
High precision speed computing
Synchronization with ECDIS
Demo mode

AP-8
APPENDIX 3 TIME DIFFERENCES

AP-9
APPENDIX 4 GEODETIC CHART LIST

001: WGS84 091: NORTH AMERICAN 1927 : Bahamas (excl. San Salvador Is.)
002: WGS72 092: NORTH AMERICAN 1927 : Bahamas, San Salvador Is.
003: TOKYO : Mean Value (Japan, Korea & Okinawa) 093: NORTH AMERICAN 1927 (Contd) : Canada (incl. Newfoundland Is.)
004: NORTH AMERICAN 1927 : Mean Value (CONUS) 094: NORTH AMERICAN 1927 (Contd) : Alberta & British Columbia
005: EUROPEAN 1950 : Mean Value 095: NORTH AMERICAN 1927 (Contd) : East Canada
006: AUSTRALIAN GEODETIC 1984 : Australia & Tasmania 096: NORTH AMERICAN 1927 (Contd) : Manitoba & Ontario
007: ADINDAN : Mean Value (Ethiopia & Sudan) 097: NORTH AMERICAN 1927 (Contd) : Northwest Territories & Saskatchewan
008: ADINDAN : Ethiopia 098: NORTH AMERICAN 1927 (Contd) : Yukon
009: ADINDAN : Mali 099: NORTH AMERICAN 1927 (Contd) : Canal Zone
010: ADINDAN : Senegal 100: NORTH AMERICAN 1927 (Contd) : Caribbean
011: ADINDAN : Sudan 101: NORTH AMERICAN 1927 (Contd) : Central America
012: AFG : Somalia 102: NORTH AMERICAN 1927 (Contd) : Cuba
013: AIN EL ABD 1970 : Bahrain Is. 103: NORTH AMERICAN 1927 (Contd) : Greenland
014: ANNA 1 ASTRO 1965 : Cocos Is. 104: NORTH AMERICAN 1927 (Contd) : Mexico
015: ARC 1950 : Mean Value 105: NORTH AMERICAN 1983 : Alaska
016: ARC 1950 : Botswana 106: NORTH AMERICAN 1983 : Canada
017: ARC 1950 : Lesotho 107: NORTH AMERICAN 1983 : CONUS
018: ARC 1950 : Malawi 108: NORTH AMERICAN 1983 : Mexico, Central America
019: ARC 1950 : Swaziland 109: OBSERVATORIO 1966 : Corvo & Flores Is. (Azores)
020: ARC 1950 : Zaire 110: OLD EGYPTIAN 1930 : Egypt
021: ARC 1950 : Zambia 111: OLD HAWAIIAN : Mean Value
022: ARC 1950 : Zimbabwe 112: OLD HAWAIIAN : Hawaii
023: ARC 1960 : Mean Value (Kenya & Tanzania) 113: OLD HAWAIIAN : Kauai
024: ARC 1960 : Kenya 114: OLD HAWAIIAN : Maui
025: ARC 1960 : Tanzania 115: OLD HAWAIIAN : Oahu
026: ASCENSION IS. 1958 : Ascension Is. 116: OMAN : Oman
027: ASTRO BEACON E : Iwo Jima Is. 117: ORDNANCE SURVEY OF GREAT BRITAIN 1936: Mean Value
028: ASTRO B4 SOR. ATOLL : Tern Is. 118: ORDNANCE SURVEY OF GREAT BRITAIN 1936: England
029: ASTRO POS 71/4 : St. Helena Is. 119: ORDNANCE SURVEY OF GREAT BRITAIN 1936: England, Isle
030: ASTRONOMIC STATION 1952 : Marcus Is. of Man & Wales
031: AUSTRALIAN GEODETIC 1966 : Australia & Tasmania 120: ORDNANCE SURVEY OF GREAT BRITAIN 1936: Scotland &
032: BELLEVUE (IGN) : Efate & Erromango Is. Shetland Is.
033: BERMUDA 1957 : Bermuda Is. 121: ORDNANCE SURVEY OF GREAT BRITAIN 1936 : Wales
034: BOGOTA OBSERVATORY : Columbia 122: PICO DE LAS NIVIES : Canary Is.
035: CAMPO INCHAUSPE : Argentina 123: PITCAIRN ASTRO 1967 : Pitcairn Is.
036: CANTON IS. 1966 : Phoenix Is. 124: PROVISIONAL SOUTH CHILEAN 1963: South Chile (near 53S)
037: CAPE : South Africa 125: PROVISIONAL SOUTH AMERICAN 1956: Mean Value
038: CAPE CANAVERAL : Mean Value (Florida & Bahama Is.) 126: PROVISIONAL SOUTH AMERICAN 1956: Bolivia
039: CARTHAGE : Tunisia 127: PROVISIONAL SOUTH AMERICAN 1956: Chile-Northern Chile
040: CHATHAM 1971 : Chatham Is. (New Zealand) (near 19S)
041: CHUA ASTRO : Paraguay 128: PROVISIONAL SOUTH AMERICAN 1956: Chile-Southern Chile
042: CORREGO ALEGRE : Brazil
(near 43S)
043: DJAKARTA (BATAVIA) : Sumatra Is. (Indonesia)
044: DOS 1968 : Gizo Is. (New Georgia Is.) 129: PROVISIONAL SOUTH AMERICAN 1956: Columbia
045: EASTER IS. 1967 : Easter Is. 130: PROVISIONAL SOUTH AMERICAN 1956: Ecuador
046: EUROPEAN 1950 (Contd) : Western Europe 131: PROVISIONAL SOUTH AMERICAN 1956: Guyana
047: EUROPEAN 1950 (Contd) : Cyprus 132: PROVISIONAL SOUTH AMERICAN 1956: Peru
048: EUROPEAN 1950 (Contd) : Egypt 133: PROVISIONAL SOUTH AMERICAN 1956: Venezuela
049: EUROPEAN 1950 (Contd) : England, Scotland, Channel & Shetland Is. 134: PUERTO RICO : Puerto Rico & Virgin Is.
050: EUROPEAN 1950 (Contd) : England, Ireland, Scotland & Shetland Is. 135: QATAR NATIONAL : Qatar
051: EUROPEAN 1950 (Contd) : Greece 136: QORNOQ : South Greenland
052 EUROPEAN 1950 (Contd) : Iran 137: ROME 1940 : Sardinia Is.
053: EUROPEAN 1950 (Contd) : Italy, Sardinia 138: SANTA BRAZ : Sao Miguel, Santa Maria Is. (Azores)
054: EUROPEAN 1950 (Contd) : Italy, Sicily 139: SANTO (DOS) : Espirito Santo Is.
055: EUROPEAN 1950 (Contd) : Norway & Finland 140: SAPPER HILL 1943 : East Falkland Is.
056: EUROPEAN 1950 (Contd) : Portugal & Spain 141: SOUTH AMERICAN 1969 : Mean Value
057: EUROPEAN 1979 : Mean Value 142: SOUTH AMERICAN 1969 : Argentina
058: GANDAJIKA BASE : Republic of Maldives 143: SOUTH AMERICAN 1969 : Bolivia
059: GEODETIC DATUM 1949 : New Zealand 144: SOUTH AMERICAN 1969 : Brazil
060: GUAM 1963 : Guam Is. 145: SOUTH AMERICAN 1969 : Chile
061: GUX 1 ASTRO : Guadalcanal Is. 146: SOUTH AMERICAN 1969 : Columbia
062: HJORSEY 1955 : Iceland 147: SOUTH AMERICAN 1969 : Ecuador
063: HONG KONG 1963 : Hong Kong 148: SOUTH AMERICAN 1969 : Guyana
064: INDIAN : Thailand & Vietnam 149: SOUTH AMERICAN 1969 : Paraguay
065: INDIAN : Bangladesh, India & Nepal 150: SOUTH AMERICAN 1969 : Peru
066: IRELAND 1965 : Ireland 151: SOUTH AMERICAN 1969 : Trinidad & Tobago
067: ISTS 073 ASTRO 1969 : Diego Garcia 152: SOUTH AMERICAN 1969 : Venezuela
068: JOHNSTON IS. 1961 : Johnston Is. 153: SOUTH ASIA : Singapore
069: KANDAWALA : Sri Lanka 154: SOUTHEAST BASE : Porto Santo & Madeira Is.
070: KERGUELEN IS. : Kerguelen Is. 155: SOUTHWEST BASE : Faial, Graciosa, Pico, Sao Jorge & Terceria Is.
071: KERTAU 1948 : West Malaysia & Singapore 156: TIMBALAI 1948 : Brunei & East Malaysia (Sarawak & Sabah)
072: LA REUNION : Mascarene Is. 157: TOKYO : Japan
073: L. C. 5 ASTRO : Cayman Brac Is. 158: TOKYO : Korea
074: LIBERIA 1964 : Liberia 159: TOKYO : Okinawa
075: LUZON : Philippines (excl. Mindanao Is.) 160: TRISTAN ASTRO 1968 : Tristan da Cunha
076: LUZON : Mindanao Is. 161: VITI LEVU 1916 : Viti Levu Is. (Fiji Is.)
077: MAHE 1971 : Mahe Is. 162: WAKE-ENIWETOK 1960 : Marshall Is.
078: MARCO ASTRO : Salvage Islands 163: ZANDERIJ : Surinam
079: MASSAWA : Eritrea (Ethiopia) 164: BUKIT RIMPAH : Bangka & Belitung Is. (Indonesia)
080: MERCHICH : Morocco 165: CAMP AREA ASTRO : Camp Mcmurdo Area, Antarctica
081: MIDWAY ASTRO 1961 : Midway Is. 166: G. SEGARA : Kalimantan Is. (Indonesia)
082: MINNA : Nigeria 167: HERAT NORTH : Afghanistan
083: NAHRWAN : Masirah Is. (Oman) 168: HU-TZU-SHAN : Taiwan
084: NAHRWAN : United Arab Emirates 169: TANANARIVE OBSERVATORY 1925 : Madagascar
085: NAHRWAN : Saudi Arabia 170: YACARE : Uruguay
086: NAMIBIA : Namibia 171: RT-90 : Sweden
087: MAPARIMA, BWI : Trinidad & Tobago 172: CK42 (PULKOVO 1942) : Russia
088: NORTH AMERICAN 1927 : Western United States 173: FINNISH KKJ : Finland
089: NORTH AMERICAN 1927 : Eastern United States 174: PZ90 : Russia
090: NORTH AMERICAN 1927 : Alaska 175: CK95 : Russia

AP-10
APPENDIX 5 WHAT IS SBAS?
A satellite based augmentation system, or SBAS (Satellite Based Augmentation System), is an
augmentation system that uses additional messages from satellite broadcasts to support regional
and wide area augmentation. SBAS provides GPS signal corrections to SBAS users, for even bet-
ter position accuracy, through the GPS error corrections that are widely broadcasted from the geo-
stationary satellite.

SBAS is used in America, Europe, Japan and India.

America: WAAS (Wide Area Augmentation System)

Europe: EGNOS (Euro Geostationary Navigation Overlay Service)
Japan: MSAS (Multi-Functional Satellite Augmentation System)
India: GAGAN (GPS And GEO Augmented Navigation)
These four systems have interoperability. The illustration below shows the coverage area for each
provider. This manual uses "SBAS" for these four providers generically.

EGNOS

WAAS

MSAS
GAGAN

Provider Satellite type Longitude Satellite No.

WAAS Intelsat Galaxy XV 133W 135
TeleSat Anik F1R 107.3W 138
Inmarsat-4-F3 98W 133
EGNOS Inmarsat-3-F2/AOR-E 15.5W 120
Artemis 21.5E 124
Inmarsat-4-F2 25E 126
SES-5 5E 136
MSAS MTSAT-1R 140E 129
MTSAT-2 145E 137
GAGAN GSAT-8 55E 127
GSAT-10 83E 128
As of March 6th, 2014

AP-11
APPENDIX 6 PARTS LIST/LOCATION
Parts list
This equipment contains complex modules in which fault diagnosis and repair down to component
level are not practical (IMO A.694(17)/8.3.1). Only some discrete components are used. FURUNO
Electric Co., Ltd. Believes identifying these components is of no value for shipboard maintenance;
therefore, they are not listed in this manual. Major modules can be located on the parts location
photos below.
ELECTRICAL PARTS LIST Unit Display Unit GP-170
Code No.
PRINTED CIRCUIT BOARD
GR-1700(20P8208), BEACON
20P8209, MAIN
20P8210, PNL
20P8211, GPS
20P8220, UFL-ANT

LCD
NL6448BC18-01F

Parts location

20P8220 20P8211 GR-1700(20P8208) 20P8209

UFL-ANT GPS BEACON MAIN

NL6448BC18-01F 20P8210
LCD PNL

Display unit, cover opened

AP-12
FURUNO GP-170

SPECIFICATIONS OF GPS NAVIGATOR

GP-170

1 GPS RECEIVER
1.1 Receiving frequency 1575.42 MHz
1.2 Tracking code C/A code
1.3 Number of channel GPS: 12 channels parallel, 12 satellites
1.4 Accuracy (dependent on ionospheric activity and multipath)
GPS 10 m approx. (2drms, HDOP<4)
DGPS 5 m approx. (2drms, HDOP<4)
WAAS 3 m approx. (2drms, HDOP<4)
MSAS 7 m approx. (2drms, HDOP<4)
1.5 Ships speed accuracy 0.2 kn (10kn or less), 2 % of ships speed (more than 10kn),
excluding influence of roll and pitch
1.6 Course accuracy 3 (within 1 to 17kn), 1 (more than 17kn)
1.7 Position fixing time Cold start: 90 s typical
1.8 Tracking velocity 1000 kn
1.9 Position update Interval* 1 s (standard), 0.1 s (minimum)
*: Set the position update interval 0.1 s or 0.2 s for high-speed craft. Set the positioning cycle
5 or 10 Hz according to the position update interval; 5/10 Hz for 0.2s interval, 10 Hz for 0.1s
interval.

2 DISPLAY SECTION
2.1 Display type Color LCD 116.16 x 87.12 mm, 640 x 480 dot matrix
2.2 Brilliance 700 cd/m2 typical
2.3 Visible distance 0.625 m nominal
2.4 Display modes Plotter, Highway, Course, Data, Integrity
2.5 Projection Mercator
2.6 Track plotter display
Scale 0.125 to 1024 NM, 14 steps
Latitude limits Between 88 N and 88 S
Plot interval By time 0 to 60m00s or by distance 0 to 99.99 NM, sm/km or halt
2.7 Memory capacity
Track and marks Track: 1,000 points, Mark: 2,000 points
Waypoints 1,000 points with 20 characters comment each
Route 100 routes (containing 1,000 waypoints each)
No. 001 to 099: for registering routes
No. 100: for reading from USB flush memory/ synchronizing with
ECDIS
2.8 Notice Arrival and anchor watch, Cross track error, Speed, Trip
2.9 Alerts Differential positioning interruption, HDOP overshoot, Own ship
positioning fail, Own ship position lost, Beacon signal lost,
Beacon malfunction, Antenna short-circuit
2.10 Satellite information Satellite number, Bearing, Elevation, Signal level, DOP, Status

SP - 1 E4482S01C
FURUNO GP-170

3 DGPS BEACON RECEIVER (for DGPS model)

3.1 Frequency range 283.5 kHz to 325.0 kHz
3.2 Channel separation 500 Hz
3.3 MSK rate 25, 50, 100, 150, 200 bps
3.4 Operation mode Auto or manual

4 INTERFACE
4.1 Number of ports Serial: 4 ports (IEC61162-1 I/O: 2, O: 1, IEC61162-2 I/O: 1),
Ethernet (IEC61162-450):1 port, USB: 1 port
4.2 Data format IEC61162-1 Ed.3/4, NMEA0183 Ver1.5/2.0/4.0, IEC61162-450
4.3 Data port 1, 2 and 4
IEC/NMEA Mode
IN: ACK, ACN, CRQ, DBT, DPT, HBT, HDG, HDM**, HDT**, MSK,
MSS, MTW, THS, TLL, VBW, VHW
OUT: AAM, ALC, ALF, ALR, APA**, APB, ARC, BOD, BWC, BWR,
BWW, DTM, GBS, GGA, GLL, GNS, GRS, GSA, GST, GSV, HBT,
MSK*, MSS*, POS, RMB, RMC, Rnn**, RTE, VDR, VTG, WCV,
WNC, WNR, WPL, XTE, ZDA
RTCM Mode
IN/ OUT: MSK, MSS
DGPS correction data in RTCM SC-104 V2.3
4.4 Data port 3
IN: MOB from external device (contact closure)
OUT: AAM, ALC, ALF, ALR, APA**, APB, ARC, BOD, BWC, BWR,
BWW, DTM, GBS, GGA, GLL, GNS, GRS, GSA, GST, GSV, HBT,
MSK*,MSS*, POS, RMB, RMC, Rnn**, RTE, VDR, VTG, WCV,
WNC, WNR, WPL, XTE, ZDA
RTCM Mode Output MSK, MSS
DGPS correction data in RTCM SC-104 V2.3
4.5 Proprietary sentences (output only)
PFEC GPals, GPasc, GPdst, GPmr2, GPmsk, GPrai, GPreq,
GPrt2, GPtrp, IIalr, pidat, rminf
4.6 Ethernet 100Base-TX, RJ45 connector (waterproof)
IEC61162-450 transmission group
IN: MISC, SATD, NAVD
OUT: Arbitrary (default: NAVD)
Network function (except IEC61162-450)
SNTP, HTTP, Furuno Management Protocol (FMP)
Sentences
IN: ACK, ACN, DBT, DPT, HBT, HDG, HDM**, HDT**, MTW, THS,
TLL, VBW, VHW
OUT: AAM, ALC, ALF, ALR, APB, ARC, BOD, BWC, BWR, BWW, DTM,
GBS, GGA, GLL, GNS, GRS, GSA, GST, GSV, HBT, POS, RMB,
RMC, RTE, VDR, VTG, WCV, WNC, WPL, XTE, ZDA
*: MSK: Internal/external beacon receiver required, MSS: internal beacon receiver required.
**: not used for SOLAS ships.

SP - 2 E4482S01C
FURUNO GP-170

5 POWER SUPPLY
5.1 Display unit 12-24 VDC: 0.8-0.4 A (w/ internal beacon receiver)
5.2 Rectifier (option)
PR-240 100-115/220-230 VAC, 1 phase, 50/60Hz
PR-62 100/110-115/220/230 VAC, 1 phase, 50/60Hz

6 ENVIRONMENTAL CONDITIONS
6.1 Ambient temperature
Antenna unit -25C to +70C
Display unit -15C to +55C
6.2 Relative humidity 95% or less at +40C
6.3 Degree of protection
Antenna unit IP56
Display unit IP25 (USCG CFR-46), IPX0 (USB port cover opened)
6.4 Vibration IEC 60945 Ed.4

7 UNIT COLOR
7.1 Antenna unit N9.5
7.2 Display unit N2.5

SP - 3 E4482S01C
FURUNO GP-170

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SP - 4 E4482S01C
INDEX
A H
Alerts Heading line on/off .................................... 2-4
acknowledging ........................................ 8-4 Highway display ........................................ 7-4
list ............................................................ 8-3
I
log ........................................................... 8-4
Input data selection ................................. 9-15
overview .................................................. 8-1
Integrity display ......................................... 7-1
Antenna position ....................................... 9-3
Anti-multipath mode .................................. 9-8 K
Attitude gauge ........................................... 9-3 Key sound ................................................. 1-2
B L
Background color ...................................... 2-1 Language selection ................................. 9-12
Backup .................................................... 10-6 Life of LCD .............................................. 10-1
Beacon .................................................... 9-10 Line monitor log....................................... 9-16
Bearing reference...................................... 2-6 List overview ............................................. 1-9
Brilliance.................................................... 1-4 M
C Magnetic variation ..................................... 2-6
Centering................................................... 2-3 Main menu overview ................................. 1-8
Clearing memory..................................... 10-8 Maintenance............................................ 10-1
COG vector ............................................... 2-4 Marks
Context menu overview........................... 1-10 editing...................................................... 3-7
Control description .................................... 1-1 erasing .................................................... 3-8
Core filter................................................... 9-6 presetting ................................................ 3-1
Course display .......................................... 7-5 putting ..................................................... 3-2
Cursor on/off ............................................. 2-2 Menu tree ................................................AP-1
Cursor size ................................................ 2-2 MOB mark
putting ..................................................... 3-6
D
Data display .............................................. 7-6 N
Datum........................................................ 9-7 Notice
Demo mode............................................. 9-20 anchor ..................................................... 6-2
Destination arrival ...................................................... 6-2
cancelling ................................................ 5-3 ship speed ............................................... 6-3
setting...................................................... 5-1 sound ...................................................... 6-1
Disable satellite ......................................... 9-5 trip ........................................................... 6-4
Display mode ............................................ 1-5 XTE ......................................................... 6-3
Display orientation..................................... 2-1 O
Drift............................................................ 5-6 Output setting.......................................... 9-13
Dual configuration ................................... 9-18
P
E Parts list ................................................AP-12
ECDIS sync configuration ....................... 9-18 Parts location ........................................AP-12
Equipment information ............................ 10-3 Password ................................................ 9-19
ETA ........................................................... 5-5 Position offset............................................ 9-1
Ethernet setting ....................................... 9-14 Positioning cycle ....................................... 9-8
Event marks Power on/off .............................................. 1-3
editing...................................................... 3-7
presetting ................................................ 3-5 R
putting ..................................................... 3-5 RAIM ......................................................... 9-6
Routes
G changing direction ................................. 4-11
Geodetic chart list .................................AP-10 copying .................................................. 4-11
GPS smoothing ......................................... 9-4 creating ............................................ 4-3, 4-4
Grid ........................................................... 2-3 editing...................................................... 4-6
erasing .................................................. 4-12

IN-1
INDEX

presetting .................................................4-1
S
Satellite elevation .......................................9-5
SBAS ............................................ 9-9, AP-11
Self test ....................................................10-4
Ship size ....................................................9-3
Station data ..............................................9-10
Symbols ..................................................AP-8
System configurations................................. vii
T
Terms ......................................................AP-5
Time difference ............................... 9-2, AP-9
Time mark ..................................................2-5
Tracks
color .........................................................2-8
erasing .....................................................2-8
plotting and recording...............................2-7
plotting interval .........................................2-7
Trip distance ..............................................5-6
Troubleshooting .......................................10-2
TTG .................................................... 5-4, 5-5
U
Unit.............................................................9-1
W
Waypoint
deleting.....................................................4-9
editing.......................................................4-7
inserting..................................................4-10
temporarily deselecting ............................4-8
X
XTL line on/off ............................................2-3
Z
Zoom function ............................................2-1

IN-2