Equipment Installation Manual

Model 1203C GPS/SBAS Sensor

EQUIPMENT INSTALLATION MANUAL

for the

FreeFlight Systems

Model 1203C GPS/SBAS Sensor

P/N: 84327-50-200X &
P/N: 84327-50-XXXX

Document No. 86764

Revision J

Prepared: B. POONAWALLA 1/25/2017

Quality: R. Howard Check ECN
Approved: A. Moya Check ECN
DATE

FreeFlight Systems
3700 Interstate 35 South
Waco, TX 76706-3756 U.S.A.
1 (254) 662-0000
1 (800) 487-4662
http://www.freeflightsystems.com

FreeFlight Systems Proprietary Information P/N 86764 Page 1 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

REVISION HISTORY
REV DESCRIPTION DATE APPROVED
A Initial Release 17 Dec 2010 C. EHEIM
B Modified per ECN F11001 24 Jan 2011 C. EHEIM
C Modified per ECN F11009 31 Mar 2011 C. EHEIM
D Modified per ECN F11028 26 Aug 2011 C. EHEIM
E Modified per ECN F12028 31 Jul 2012 C. EHEIM
F Modified per ECN F13011 19 Apr 2013 C. EHEIM
G Modified per ECN F14008 07 May 2014 B.POONAWALLA
H Modified per ECN F15050 06 June 2016 B.POONAWALLA
K. KAPRAL / B.
J Modified per ECN F15076 25 Jan 2017
POONAWALLA

FreeFlight Systems Proprietary Information P/N 86764 Page 2 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................................ 5
1.1 Reference Documents ................................................................................................ 7
1.1.1 FreeFlight Documents ......................................................................................... 7
1.1.2 Regulatory Documents........................................................................................ 7
1.2 Acronyms & Abbreviations ....................................................................................... 9
2 DESCRIPTION............................................................................................................... 11
2.1 Dynamic Tracking .................................................................................................... 11
2.2 SATCOM Compatibility .......................................................................................... 11
3 PART NUMBERS .......................................................................................................... 12
4 REGULATORY COMPLIANCE .................................................................................. 13
4.1 TSO Compliance ...................................................................................................... 13
4.2 Design Assurance ..................................................................................................... 14
4.3 Environmental Qualification Compliance ................................................................ 14
4.4 Department Of Commerce Compliance ................................................................... 14
4.5 Automatic Dependence Surveillance-Broadcast (ADS-B) Compliance .................. 14
5 SUPPLIED AND NON-SUPPLIED EQUIPMENT ...................................................... 15
5.1 Supplied Equipment ................................................................................................. 15
5.2 Equipment Not Supplied .......................................................................................... 16
6 SPECIFICATIONS, MODEL 1203C GPS/SBAS SENSOR ......................................... 17
6.1 Equipment Limitations of the Model 1203C GPS/SBAS Sensor ............................ 17
7 SPECIFICATIONS, ANTENNA (RTCA/DO-301 and RTCA/DO-228-compatible) ... 18
8 MECHANICAL .............................................................................................................. 20
8.1 Mounting .................................................................................................................. 20
8.2 Connectors ................................................................................................................ 21
9 ELECTRICAL INTERFACES ....................................................................................... 22
9.1 Supply Voltage ......................................................................................................... 22
9.2 Wiring Considerations.............................................................................................. 22
9.3 ARINC Digital Interfaces......................................................................................... 22
9.3.1 ARINC 743 Output Interface ............................................................................ 22
9.3.2 Output Speed Selection ..................................................................................... 22
9.3.3 ARINC 429 Input Interface .............................................................................. 23
9.3.4 Input Speed Selection ....................................................................................... 23
9.4 Serial Interfaces ........................................................................................................ 23
9.4.1 NMEA 0183 Output .......................................................................................... 23
9.4.2 Programming Interface ..................................................................................... 23
9.4.3 I/O Maintenance Interface ................................................................................ 23
9.5 Pulse Per Second (PPS) Output................................................................................ 23
10 FUNCTIONAL INTERFACES – NORMAL OPERATIONS....................................... 24
10.1 Pulse Per Second Output ...................................................................................... 24
10.2 ARINC 429 Inputs ................................................................................................ 24
10.2.1 Altitude Input .................................................................................................... 24
10.2.2 FMS Input of Predictive RAIM (pRAIM) ........................................................ 24
10.3 ARINC 743 Outputs ............................................................................................. 28
10.3.1 ARINC 743 Update Rate .................................................................................. 29

FreeFlight Systems Proprietary Information P/N 86764 Page 3 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

10.4 Serial Interfaces .................................................................................................... 29

10.4.1 NMEA 0183 Output .......................................................................................... 29
11 BUILT-IN TEST (BIT)................................................................................................... 30
12 APPENDICES ................................................................................................................ 31
12.1 APPENDIX A1 – ENVIRONMENTAL, ANTENNA......................................... 31
12.2 APPENDIX A2 – ENVIRONMENTAL, SENSOR P/N 84327-50-200X and
84327-50-XXXX ................................................................................................................ 33
12.3 APPENDIX A3 – TYPICAL INTERCONNECT DIAGRAMS .......................... 35
12.3.1 1203C Integration with Any Flight Management, Navigation, Traffic
Awareness and Air Data Computer Systems .................................................................. 35
12.3.2 1203C Integration with a Becker BXT6513 Diversity Mode S / ADS-B
Transponder .................................................................................................................... 36
12.3.3 1203C Integration with an L3 ACSS/ Bendix King NXT700/ MST 70B Mode S
/ ADS-B Transponder ..................................................................................................... 37
12.4 APPENDIX A4 - LIST OF COMPLIANT ADS-B TRANPONDERS AND
UAT’s THAT INTERFACE TO THE 1203C .................................................................... 38

LIST OF TABLES
Table 1: Model 1203C Performance Characteristics ................................................................ 6
Table 2: Examples of TSO-C190 Antennas............................................................................ 12
Table 3: Qualified TSO-C144 Antennas................................................................................. 12
Table 4: List of available 1203C Part Numbers and System Configurations ......................... 15
Table 5: Connector Descriptions ............................................................................................ 21
Table 6: Connector J1 Pinout .................................................................................................. 21
Table 7: One PPS Interface ..................................................................................................... 24
Table 8: ARINC 429 ADC Input Labels ................................................................................ 24
Table 9: Integrity Sequence Counter ...................................................................................... 27
Table 10: ARINC 743 Output Labels in Order 1 .................................................................... 28
Table 11: NMEA 0183 Output Messages ............................................................................... 29

LIST OF FIGURES
Figure 1: Model 1203C System Block Diagram....................................................................... 5
Figure 2: Model 1203C Mounting Illustration........................................................................ 20
Figure 3: Prediction Request ................................................................................................... 25
Figure 4: Prediction Response ................................................................................................ 26

FreeFlight Systems Proprietary Information P/N 86764 Page 4 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

1 INTRODUCTION

This manual contains installation data and specifications for the FreeFlight Systems Model
1203C GPS/SBAS Receiver, P/N 84327-50-200X and 84327-50-XXXX. The Model 1203C
meets the requirements for a TSO-C145c Class Beta-1 device, and so meets or exceeds the
minimum operational performance standards set forth in RTCA/DO-229D. The 1203C also
meets the requirements of A20-165B for use as a GNSS position source in Automatic
Dependent Surveillance-Broadcast (ADS-B) Out installations.

The Model 1203C is designed to provide position, velocity, time and integrity (PVT&I) data
to a Terrain Awareness Warning System (TAWS), an integrated Flight Management System
(FMS), or Navigation Management System (NMS). The Model 1203C navigates worldwide
by processing Global Positioning System (GPS) signal data and Satellite Based
Augmentation System (SBAS) signal data (when and where available) that comply with the
WAAS standard used in the United States. The system interfaces to TAWS, FMS, NMS or
other systems requiring GPS data via an ARINC 743A/B 2-wire interface. The system is
capable of receiving external altitude and RAIM prediction requests via two ARINC 429 2-
wire interfaces.

The system consists of two Line Replaceable Units (LRUs): a Sensor/Processor Unit (SPU)
and a GPS antenna unit. The antenna can be any one of several commercially-available
antennas complying with RTCA/DO-301 or RTCA/DO-228 minimum operational
performance standards. Antennas of this type usually possess TSO-C190 (which references
DO-301) or TSO-C144 (which references DO-228). Refer to Figure 1 for a Model 1203C
system overview and Table 1 for a brief summary of performance characteristics.

GPS Antenna NMEA

0183 Out
ARINC
743A Out
FMS
FreeFlight
Model 1203C RAIM
ARINC Predictions
Maintenance 743A In
Data
Power
ARINC
In
429 In
10 – 32
VDC
ADC Altitude

Figure 1: Model 1203C System Block Diagram

FreeFlight Systems Proprietary Information P/N 86764 Page 5 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Table 1: Model 1203C Performance Characteristics

Characteristic Description
Update Rate 1 Hz or 5 Hz (Configurable)
Parallel Channels 15 channels: 12 GPS and 3 SBAS
Beta-1: Domestic en route, terminal, non-precision approach, and
Equipment Class departure/arrival operations
TSO-C144 or TSO-C190, or any standard antenna compliant with
Antenna RTCA/DO-228 or RTCA/DO-301
Receiver Mounting ARINC 743A/B – Alternate Configuration

FreeFlight Systems Proprietary Information P/N 86764 Page 6 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

1.1 Reference Documents

1.1.1 FreeFlight Documents

Document Title
Number
84327-XX-SPEC GPS/WAAS Receiver Outline Drawing
87065 FreeFlight Systems GPS/SBAS Sensor System Model 1203C ADS-B
Compliance Report per AC 20-165B

1.1.2 Regulatory Documents

Document No. Title

ARINC 429 Mark 33 Digital Information Transfer System (DITS); 17-May-04

429 GAMA ARINC 429, General Aviation Subset; 19-May-09

ARINC 743B GNSS Sensor; 29-May-09

RTCA/ Environmental Conditions and Test Procedures for Airborne
DO-160F Equipment; 06-Dec-07
RTCA/ Environmental Conditions and Test Procedures for Airborne
DO-160E Equipment; 09-Dec-04
RTCA/ Environmental Conditions and Test Procedures for Airborne
DO-160C Equipment; 04-Dec-89
RTCA/ Software Considerations In Airborne Systems And Equipment
DO-178B Certification; 1-Dec-92.

RTCA/ Minimum Operational Performance Standards for Global Positioning

System/Wide Area Augmentation System Airborne Equipment; 13-
DO-229D Dec-06.
Active Airborne Global Navigation Satellite System (GNSS) Antenna;
TSO-C190
30-Mar-07

TSO-C144 Airborne Global Positioning System Antenna; 3-Mar-98

TSO-C145c Airborne Navigation Sensors Using The Global Positioning System

Augmented By The Satellite Based Augmentation System; 02-May-08
AC 20-138B Advisory Circular: Airworthiness Approval of Positioning and
Navigation Systems; 27-Sep-10

FreeFlight Systems Proprietary Information P/N 86764 Page 7 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

AC 20-165B Airworthiness Approval of Automatic Dependent Surveillance –

Broadcast (ADS-B) Out Systems; 07-Dec-2015
IS-GPS-200D Navstar GPS Space Segment/Navigation User Interfaces; 07-Dec-04
FAA E-2893b Specification for the Wide Area Augmentation System (WAAS); 13-
Change 2 Aug-01
GWSS-ARINC- FreeFlight systems GPS/SBAS ARINC Interface Control Document
ICD

FreeFlight Systems Proprietary Information P/N 86764 Page 8 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

1.2 Acronyms & Abbreviations

Abbreviation Definition
A Amperes
AC Advisory Circular (FAA)
ADC Air Data Computer
ADS-B Automatic Dependent Surveillance-Broadcast
ARINC Aeronautical Radio Incorporated
BCD Binary Coded Decimal
BNR Binary
CCA Circuit Card Assembly
DADS Digital Air Data System
ETA Estimated Time of Arrival
FAA Federal Aviation Administration
FDE Fault Detection and Exclusion
FFS FreeFlight Systems
FMS Flight Management System
g Gravitational Acceleration (9.8 meters per sec squared)
GAMA General Aviation Manufacturers Association
GNSS Global Navigation Satellite System
GPS Global Positioning System
HAE Height Above Ellipsoid
HDOP Horizontal Dilution Of Precision
HFOM Horizontal Figure Of Merit
HIL Horizontal Integrity Limit
Hz Hertz (cycles per second)
kbps Kilobits Per Second
kt Knot (NM/hr)
LRU Line Replaceable Unit
mA Milliampères
ms Millisecond
MSL Mean Sea Level
NCD No Computed Data
nm Nautical Mile
NMEA National Marine Electronics Association
NMS Navigation Management System
PPS Pulse Per Second
pRAIM Predictive Receiver Autonomous Integrity Monitoring
RAIM Receiver Autonomous Integrity Monitoring
RX Receive
sec Second
SBAS Satellite Based Augmentation System
SPU Sensor/Processor Unit
SSM Sign/Status Matrix

FreeFlight Systems Proprietary Information P/N 86764 Page 9 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

TAWS Terrain Awareness Warning System

TSO Technical Standard Order
TX Transmit
UTC Universal Time Coordinated
VDC Volts Direct Current
VDOP Vertical Dilution Of Precision
VFOM Vertical Figure Of Merit
VHFOM Velocity Horizontal Figure Of Merit
VVFOM Velocity Vertical Figure Of Merit
VIL Vertical Integrity Limit
WAAS Wide Area Augmentation System

FreeFlight Systems Proprietary Information P/N 86764 Page 10 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

2 DESCRIPTION

The FreeFlight Systems Model 1203C is a 15-channel, parallel-tracking GPS/SBAS Sensor

certified to TSO-C145c Class Beta-1. It provides position and integrity data to an integrated
navigation system via an ARINC 743B interface. Integrity is provided through the use of
Fault Detection and Exclusion (FDE) and SBAS (when and where available). Domestic en
route, terminal, non-precision approach (LNAV), and departure/arrival operations are
supported.

2.1 Dynamic Tracking

In accordance with Sec. 2.1.2.5 of RTCA/DO-229D, when the aircraft has dynamics within
normal maneuvers defined by the maximum ground speeds and accelerations shown below,
the equipment meets the accuracy, satellite acquisition time, and satellite reacquisition time
requirements of DO-229D.
Ground Horiz. Vertical Total
Speed Accel. Accel. Jerk
800 kt 0.58 g 0.5 g 0.25 g/sec

Abnormal maneuvers are defined as maneuvers in which accelerations/jerks exceed normal

values, up to the maximum ground speeds and accelerations shown below.
Ground Horiz. Vertical Total
Speed Accel. Accel. Jerk
800 kt 2g 1.5 g 0.74 g/sec

During abnormal maneuvers, the equipment does not output misleading information. When
the aircraft returns to normal maneuvers from abnormal maneuvers, the equipment meets
steady-state reacquisition requirements. During the abnormal maneuver period, loss-of-
navigation capability and loss-of-integrity monitoring alerts and outputs function as
specified.

2.2 SATCOM Compatibility

The Model 1203C GPS/SBAS Sensor has been shown via testing to be specification
compliant for single-channel SATCOM compatibility per RTCA/DO-229D.

Extra care should be exercised when installing GNSS equipment on aircraft with SATCOM
having multiple channels, as cautioned in Sec. 14-1 of AC 20-138B. “GNSS equipment is
particularly susceptible to out-of-band SATCOM emissions and in-band inter-modulation
between multiple channel SATCOM installations. GNSS equipment must not be installed in
aircraft with multiple SATCOM channels unless the simultaneous use of interfering frequencies
can either be prevented or demonstrated not to interfere with the operation of the GNSS
equipment.”

FreeFlight Systems Proprietary Information P/N 86764 Page 11 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

3 PART NUMBERS

The Model 1203C GPS/SBAS Sensor is available under the following part numbers:

84327-50-200D1 Model 1203C GPS/SBAS Sensor

84327-50-XXXX2 Model 1203C GPS/SBAS Sensor

(1) Note: Not recommended for new installations

(2) Note: Beginning with system software version 200E onwards the 1203C model part
number will not include the system software version and the last four digits will be
fixed as XXXX.

See section 5.1 for additional information on supplied equipment and their associated part
numbers

Antennas are available from a number of manufacturers.

Recommended examples of antennas with TSO-C190 authorization include those shown in

Table 2:

Table 2: Examples of TSO-C190 Antennas

Manufacturer Model
AeroAntenna Technology (Chatsworth, CA) AT575-343
Cobham SATCOM Airborne Systems (Fullerton, CA) Comant CI 429-200
Sensor Systems (Chatsworth, CA) S67-1575-135

Recommended examples of antennas with TSO-C144 authorization include those shown in

Table 3:

Table 3: Qualified TSO-C144 Antennas

Manufacturer Model
AeroAntenna Technology (Chatsworth, CA) AT575-43W
AeroAntenna Technology (Chatsworth, CA) AT575-9*
AeroAntenna Technology (Chatsworth, CA) AT575-93*
*To use the above antennas they must be connected with a cable having a maximum of 5dB
loss and 1-Ohm DC resistance. See section 7 for additional GPS antenna installation
guidelines.

FreeFlight Systems Proprietary Information P/N 86764 Page 12 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

4 REGULATORY COMPLIANCE

4.1 TSO Compliance

The Model 1203C GPS/SBAS Sensor has FAA TSO-C145c (Class Beta-1) authorization.

Environmental testing was accomplished using the guidelines of RTCA/DO-160F rather than
the earlier revision E called out in TSO-C145c.

The conditions and tests required for TSO approval of this article are minimum performance
standards. It is the responsibility of those installing this article either on or within a specific
type or class of aircraft to determine that the aircraft installation conditions are within the
TSO standards. TSO articles must have separate approval for installation in an aircraft. The
article may be installed only if performed under 14 CFR Part 43 or the applicable
airworthiness requirements.

Instructions for Continued Airworthiness, FAR 23.1529, FAR 25.1529, FAR 27.1529, FAR 29.1529

This statement of compliance with the above FARs is as follows:

Maintenance Requirements - Instructions for Continued Airworthiness

SYSTEM: Model 1203C GPS/SBAS Receiver

“Modification of an aircraft by this Supplemental Type Certificate obligates the aircraft

operator to include the maintenance information provided by this document in the operator’s
Aircraft Maintenance Manual and the operator’s Aircraft Scheduled Maintenance Program.”

(1) Maintenance information for the Model 1203C GPS/SBAS Sensor (system
description, removal, installation, testing, etc.) is contained in FreeFlight Systems
Installation Manual, P/N 86764.
(2) Line Replaceable Unit (LRU) part numbers and other necessary part numbers
contained in the installation data package should be placed into the aircraft
operator’s appropriate airplane Illustrated Parts Catalog (IPC).
(3) Wiring diagram information contained in this data package should be placed into the
aircraft operator’s appropriate airplane Wiring Diagram Manuals.
(4) Scheduled Maintenance Program tasks to be added to the aircraft operator’s
appropriate airplane maintenance program are as follows:

a. Recommended Periodic Scheduled Servicing Tasks None Required

b. Recommended Periodic Scheduled Preventative None Required
Maintenance Tests/Checks to Determine System
Condition and/or Latent Failures
c. Recommended Periodic Inspections None Required
d. Recommended Periodic Structural Inspections None Required

(5) Unscheduled Maintenance

FreeFlight Systems Proprietary Information P/N 86764 Page 13 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Unscheduled maintenance may include upgrade of the program software contained

in the GPS unit.

4.2 Design Assurance

Software
The software for the Model 1203C was developed in accordance with RTCA/DO-178B with
Level C criticality.

Hardware
The hardware for the Model 1203C was developed in accordance with an RTCA/DO-254
design assurance of Level C.

4.3 Environmental Qualification Compliance

The Model 1203C GPS/SBAS Sensor meets the categories of RTCA/DO-160F indicated in
the Environmental Qualification Form found in Appendix A2.

4.4 Department Of Commerce Compliance

The Department of Commerce/Bureau of Export Administration’s “Revision of the
Commodity Control List” permits shipment of commercial GPS products for General
Destination (G-Dest) export only if they contain certain software provisions. To comply with
the G-Dest category, the Model 1203C operates neither at altitudes above 18,287 meters
(about 60,000 ft) MSL, nor at velocities greater than 513 m/s (about 1,000 knots). If either
condition is detected, the Model 1203C discontinues outputting signals and position data on
its RS-232 and ARINC 743 output ports.

4.5 Automatic Dependence Surveillance-Broadcast (ADS-B)

Compliance
The 1203C has been shown to meet the requirements for Airworthiness Approval for use as a
valid GNSS position source for Automatic Dependent Surveillance-Broadcast (ADS-B) Out
Systems per AC 20-165B, AC 20-138D and 14 CFR §91.227.

Compliance with the requirements of AC 20-165B Appendix 2 is documented in FreeFlight

Systems’ 1203C ADS-B compliance matrix, P/N 87065. If required, this document may be
requested from FreeFlight Systems Technical Customer Support.

FreeFlight Systems Proprietary Information P/N 86764 Page 14 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

5 SUPPLIED AND NON-SUPPLIED EQUIPMENT

5.1 Supplied Equipment

Part Number Description Qty

84327-50-200D1 Model 1203C GPS/SBAS Sensor 1
1Note:Not recommended for new installations.
Part number ordering information for system release version 200E or later.

Part Number Description Qty

84327-50-XXXX2 Model 1203C GPS/SBAS Sensor 1

2Note: Beginning with system software version 200E onwards the 1203C model part number
will not include the four digit system software version. The last four digits will be fixed as
XXXX. The 1203C Model P/N will be uniquely identified as 84327-50-XXXX and will not
change due to updates to the system software. See Table 4 below for additional clarification.

Table 4: List of available 1203C Part Numbers and System Configurations

Model 1203C FFS System WDIO GPS

P/N: Release Version Date Version Date
84327-50-200D3 200G 0105 170302 0111 151117
84327-50-XXXX 200G 0105 170302 0111 151117
3Note: Not recommended for new installations.

Available as options from FreeFlight Systems are qualified antennas, the Installation Manual,
and the Interface Control Document. Contact FreeFlight Systems’ Sales Department to place
an order.

Part Number Description Qty

867354 GPS/SBAS Antenna with TSO-C190 (from Sensor Systems) 1
81194 Antenna GPS/WAAS DO-228 TSO-C144 1
86764 1203C Equipment Installation Manual (this document) 1
GWSS-ARINC-ICD FreeFlight Systems GPS/SBAS ARINC Interface Control Document 1
4
Note: The TSO-C190 antenna is only recommended to accommodate future upgrades with
TSO-C145c/d Class 2, 3, and 4 navigation systems.

FreeFlight Systems Proprietary Information P/N 86764 Page 15 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Complete installation kits are also available under kit P/N 84440-01, suitable for any Model
1203C family members. Individual pieces are available under the part numbers shown.
Contact FreeFlight Systems’ Sales Department to place an order.

Part Number Description Qty

84440-01 Installation Kit, Model 1203 GPS/SBAS Sensor 1
80252 CONN 35S PLUG SHELL MS274BAYNT 1
24633-0016 CONNECTOR ACCESSORY, BACK 1
84104 Plug, Dual Crimp, TNC, Sealed, RG-142 1
84134 CONN, TNC, STRT, WEATHERPROOF, RG142 1
82809 CONNECTOR TNC, 90 1

5.2 Equipment Not Supplied

1. Coax, RG142 or equivalent

 Insertion loss: Less than 10dB @ 1575.42 MHz.
 DC Resistance: Less than 1 Ohm
2. Mounting hardware

FreeFlight Systems Proprietary Information P/N 86764 Page 16 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

6 SPECIFICATIONS, MODEL 1203C GPS/SBAS SENSOR

Certification:
TSO Compliance................................TSO-C145c (Class Beta-1) See section 6.1
Update Rate ........................................Configurable at 1 Hz or 5 Hz
Environmental ....................................DO-160F (See Appendix A2)

Physical:
The Model 1203C GPS/SBAS Sensor attaches to the airframe via four 10-32 screws (not
supplied). See Section 8-Mechanical for further details.
Height .................................................1.95”
Width..................................................8.70” (includes mounting flange)
Depth ..................................................4.70”
Weight (P/N 84327-50)......................1.9 lbs.

Electrical:
Input Voltage .....................................10 – 32 VDC
Power Consumption ...........................Less than 5 Watts (steady state)
Inrush Current ....................................Less than 9 A for less than 15 ms
RF Burn Out Protection……………. CW input carrier of +20 dBm (max) at antenna port

Data Input / Output:

Format ARINC 429 / ARINC 743 .....Baud Rate selectable: Low or High speed

6.1 Equipment Limitations of the Model 1203C GPS/SBAS Sensor

The Model 1203C Sensor must be used only with a qualified antenna (RTCA/DO-301 or
recommended RTCA/DO-228 compliant) and be connected to it with a cable having less
than 10 dB loss and 1-Ohm DC resistance.
Note: The maximum allowable signal loss between the GPS antenna port and the 1203C
(includes cables, splitters, RF connectors and interconnects) is 10dB
Table 3 also lists antenna specific limitations that must be followed for complaint
installations.

FreeFlight Systems Proprietary Information P/N 86764 Page 17 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

7 SPECIFICATIONS, ANTENNA (RTCA/DO-301 and RTCA/DO-228-

compatible)

The antenna LRU is a passive antenna element integrated with a preamplifier. It includes the
antenna radiating element, RF interconnection between the antenna and preamplifier, burnout
protection, selective RF filtering, a low-noise amplifier, and DC bias interface circuitry.

The antenna receives GPS and SBAS signals-in-space that conform to signal characteristics
cited in IS-GPS-200D and WAAS Specification FAA E-2892B Change 2, respectively. After
amplification and filtering, the signals are provided to the receiver within the SPU to enable
signal processing for information extraction. The Model 1203C is designed to perform
properly with any TSO-C190 certified antenna, which references the RTCA/DO-301
performance standard. The Model 1203C is also designed to perform properly with
recommended TSO-C144 certified antennas, which reference the RTCA/DO-228
performance standard.

The 1203C requires a TSO-C144 (DO-228) or TSO-C190 (DO-301) complaint GPS antenna.
Installation of a TSO-C190 antenna is only recommended for anticipated future upgrades to
TSO-C145c Class Beta 2, 3 or 4 navigation sensors and avoids the need for a GPS antenna
change at that time.

The performance of the 1203C GPS/SBAS sensor is affected by the gain, noise figure,
impedance, and frequency selectivity characteristics of the antenna. The 1203C should be
used only with the recommended antennas (See Table 2 and Table 3 below as well as section
5.1). Use of other antennas or cables may not meet all the performance characteristics
required by TSO-C145c.

The following antenna attributes are based on constraints called out in DO-301.

Certification:
Environmental ....................................DO-160E (See appendix A1)

Mounting ............................................External

Electrical:
Input Voltage .....................................+4.5 to +14.4 VDC range (min.); supplied by Sensor
Input Current ......................................60 mA DC (max.)
Burnout Protection .............................CW input carrier of +20 dBm (min.) without damage

The following antenna attributes are based on constraints called out in DO-228.

Certification:
Environmental ....................................DO-160C (See appendix A1)

Mounting ............................................External

FreeFlight Systems Proprietary Information P/N 86764 Page 18 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Electrical:
Input Voltage .....................................+5 VDC supplied by Sensor
Input Current ......................................40 mA DC (max.)
Burnout Protection .............................CW input carrier of +30 dBm (min.) without damage

Chapter 12-1 of AC 20-138B contains guidance for GNSS antenna placement and should be
consulted. A summary of its recommendations follows:

1. Typically, a GNSS antenna is located forward or aft of the wings on top of the
fuselage.
2. GNSS antennas must be installed to provide the widest, unobstructed view of GNSS
satellites. Shadowing by aircraft structure (and in some cases by rotorcraft
blades) can adversely affect operation of the GNSS equipment.
3. Antenna placement on the airframe should be optimized to ensure the sensor can take
full advantage of a 5 degree mask angle. This includes consideration of antenna
location with respect to blockage from all aircraft components at typical level cruising
attitude, as well as minimizing the effects of aircraft shadowing during typical
maneuvers.
4. The antenna should be separated as much as practical from transmitting antennas. For
small aircraft, the antenna also should be separated as much as practical from the
windscreen to prevent case-to-antenna coupling.
5. For installations on rotorcraft, the effects of the rotor blades on antenna performance
should be considered. This may require additional equipment functional flight
evaluation or analytical evaluation to confirm the suitability of antenna location.
6. For multiple-sensor installations, the installer should reduce the likelihood that a
single lightning strike affects all the sensors.

FreeFlight Systems Proprietary Information P/N 86764 Page 19 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

8 MECHANICAL

The Model 1203C enclosure is a powder-coated, milled aluminum box. The top surface of
the flange around the mounting holes is masked during powder-coating to enable mounting
hardware to provide a chassis ground.

8.1 Mounting
The mounting requirements for the Model 1203C Sensor are illustrated in 84327-XX-SPEC
(GPS/WAAS Sensor Outline Drawing) as illustrated below in Figure 2.

Figure 2: Model 1203C Mounting Illustration

FreeFlight Systems Proprietary Information P/N 86764 Page 20 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

8.2 Connectors
Interfaces to the Model 1203C are provided through two connectors as described below in
Table 5.

Table 5: Connector Descriptions

Connector Function Description

This 37-pin circular connector (MIL-DTL-38999)
J1 Aircraft mates with connector P/N MS27473T14B35S. The
Interconnections pin assignments for Connector J1 are as specified in
Table 6 below.
GPS/SBAS
J2 TNC Female RF Connector
Antenna

Table 6: Connector J1 Pinout

Pin Name Function Signal

1 Power Power Input 10-32 VDC
2 Ground Ground Ground
3 1PPS-A 1 Pulse Per Second RS-422 Out
4 1PPS-B 1 Pulse Per Second RS-422 Out
5 GPS TX GPS Output NMEA 0183 Output
6 Reserved
7 I/O TX I/O Maintenance Port For factory test/Update rate select
8 I/O RX I/O Maintenance Port For factory test/Update rate select
9 PGM Power I/O Program Power In 12 VDC when active
10 PGM Enable I/O Program Enable Ground when active
11 TX Speed LO=open, HI=Ground Discrete Input
12 RX Speed LO=open, HI=Ground Discrete Input
13 TX1B ARINC 743B Output ARINC 743B Output
14 TX1A ARINC 743B Output ARINC 743B Output
1
15 RX1A ADC Input ARINC 429 Input
16 RX1B1 ADC Input ARINC 429 Input
17 TX2B ARINC 743B Output ARINC 743B Output
18 TX2A ARINC 743B Output ARINC 743B Output
19 RX2A1 FMS (pRAIM) Input ARINC 743B Input
1
20 RX2B FMS (pRAIM) Input ARINC 743B Input
21 TX3B ARINC 743B Output ARINC 743B Output
22 TX3A ARINC 743B Output ARINC 743B Output
23 - 37 Reserved
1
Note: Altitude and pRAIM inputs are not required for ADS-B applications. See 10.2 below
for additional details.

FreeFlight Systems Proprietary Information P/N 86764 Page 21 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

9 ELECTRICAL INTERFACES

9.1 Supply Voltage

The Model 1203C operates properly with input voltage of 10 – 32 VDC. It will operate
properly under the 14 and 28 Volt aircraft power conditions defined in DO-160F, Section 16,
Category B.

9.2 Wiring Considerations

Connect twisted-pair shielded wire grounds to serial ground pins or aircraft ground with as
short of a conductor as possible. Ground only one end except when the shield is acting as the
serial common ground.

9.3 ARINC Digital Interfaces

The Model 1203C provides one ARINC 743 output (on three isolated TX ports) to supply
data to external FMS or NMS equipment. The Model 1203C transmits low speed (12.5 Kbps)
data if the TX Speed program pin is open or high speed (100 Kbps) if the TX Speed program
pin is grounded.

The Model 1203C provides two ARINC 429 input ports to receive data from a Digital Air
Data System (DADS) and an FMS. The Model 1203C receives low speed (12.5 Kbps) data
on both ports if the RX Speed program pin is open, or high speed (100 Kbps) if the RX
Speed program pin is grounded.

9.3.1 ARINC 743 Output Interface

The communication standard is defined by ARINC 743B. The Model 1203C provides one
data stream with separate buffering on three Transmit ports. The user may select one HI/LO
speed for the three outputs. Cabling should be shielded twisted pair with shield grounded to
aircraft and Model 1203C chassis.

9.3.2 Output Speed Selection

Pin J1-11 is used to select the speed to be used for the ARINC output data. For the default,
Low speed (12.5 kbps), leave this unconnected. For High speed (100 kbps), ground this pin
to aircraft chassis.

9.3.2.1 ARINC 743 Update Rate Selection

Pins J1-7 and J1-8 are used to select the ARINC 743 GPS navigation data block update rate
(1Hz or 5Hz). For 1 Hz update rate, leave these pins unconnected. For 5 Hz update rate,
jumper these pins together in the aircraft wiring harness. The 5 Hz update rate should be
selected when the 1203C is the ADS-B Out position source. The 5 Hz rate provides better
margin to meet the AC 20-165B ADS-B Out overall system latency and timing.

FreeFlight Systems Proprietary Information P/N 86764 Page 22 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

9.3.3 ARINC 429 Input Interface

The communication standard is defined by ARINC 429. The Model1203C provides two
Receive ports selectable for HI/LO operation. Cabling should be shielded twisted pair with
shield grounded to aircraft and the Model 1203C chassis.

9.3.4 Input Speed Selection

Pin J1-12 is used to select the speed to be used for the ARINC input data. For the default,
Low speed (12.5 kbps), leave this unconnected. For High speed (100 kbps), ground this pin
to aircraft chassis.

9.4 Serial Interfaces

9.4.1 NMEA 0183 Output

Note: This interface is not protected against lightning as specified in Appendix A2. If this
interface is connected in the aircraft lightning protection must be added by the installer if
required.

The Model 1203C provides an NMEA 0183 RS-232C output transmitting at 57,600 baud, 8
data bits, 1 stop bit, and no parity.

9.4.2 Programming Interface

The Model 1203C provides a bi-directional RS-232 interface to support re-programming of
the system software. This interface should not be connected in the aircraft.

9.4.3 I/O Maintenance Interface

The Model 1203C provides one maintenance port for factory testing. This port should not be
connected in the aircraft.

9.5 Pulse Per Second (PPS) Output

The Model 1203C outputs a PPS signal (i.e., at 1 Hz) as an RS-422 differential output.

FreeFlight Systems Proprietary Information P/N 86764 Page 23 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

10 FUNCTIONAL INTERFACES – NORMAL OPERATIONS

10.1 Pulse Per Second Output

The PPS Output meets the electrical requirements of ARINC 743B and is aligned with the
GNSS UTC time. The 1203C uses the GNSS system as its source of time and outputs UTC
labels (125 and 150). The position solution output by the 1203C is applicable to this time.

Characteristics of the PPS Output are listed in Table 7.

Table 7: One PPS Interface

Characteristic Description
Amplitude 5 VDC
Duty cycle 1 ms (±0.01 ms) pulse every second
RS-422 style (differential, balanced pair) with short circuit
Driver
protection

10.2 ARINC 429 Inputs

10.2.1 Altitude Input

Data utilized by this optional input is indicated in Table 8. Altitude data enables the Model
1203C to compute and output 2-D position - without RAIM integrity - when only three
satellites are available. When baro-corrected altitude data is available, RAIM integrity
enhancement as defined in Appendix G of RTCA/DO-229D is available.

Table 8: ARINC 429 ADC Input Labels

Label (Octal) ADC Input Description

203 Altitude, Standard Pressure
204 Altitude, Barometric-Corrected

Note: It is not mandatory for altitude input to be interfaced to the 1203C. Altitude input is
usually only required in areas with minimal GPS/SBAS satellite coverage and require
altitude input for aided-RAIM.

10.2.2 FMS Input of Predictive RAIM (pRAIM)

The Model 1203C performs RAIM predictions on command from an FMS.

Note: pRAIM input is not required for ADS-B applications

FreeFlight Systems Proprietary Information P/N 86764 Page 24 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

10.2.2.1 RAIM Prediction Requests

The ARINC 743 input from the FMS accepts the labels listed in Figure 3. Data content
conforms to Appendix C of ARINC 743B.

The FMS issues a prediction request by sending the ETA (label 152) and the destination
waypoint latitude (label 144) and longitude (label 143) along with two satellite de-selection
labels (label 146 and label 170) (see limitation in section 6.1). The Model 1203C recognizes
a request for a RAIM prediction when it receives a set of five valid labels from the FMS in
the order shown below in Figure 3. Reception of an ETA label with a new sequence bit (bit
16), or a different ETA than the last, is interpreted by the Model 1203C as the start of a new
prediction request. If a new prediction request is received [indicated by reception of an ETA
label with a new sequence bit (bit 16) or a different ETA] while a response to a previous
request is still pending, the new request is buffered for processing until the previous request
has completed (so the most recent request is always processed).

Sat De-sel (146, 0)

Sat De-sel (170, 0)

Longitude (143)
Latitude (144)
ETA (152)

Figure 3: Prediction Request

Since the Model 1203C does not contain SDI discrete strapping, the SDI bits (bit 9 and 10) in
label 152 are ignored by the Model 1203C, except that it echoes the SDI bits in its response
labels.

The baro-correction bit (bit 11) of label 152 is ignored. The Model 1203C does not account
for external baro-altitude input when determining RAIM availability at the ETA of the
prediction, regardless of whether it is available at the time the prediction request is received.

10.2.2.2 RAIM Prediction Response

The Model 1203C responds to RAIM Prediction Requests on each of the three ARINC
output ports. The RAIM Prediction Response consists of the labels 162 and 343, as illustrated
in Figure 4 and described below.

Data content conforms to Appendix C of ARINC 743B. The SSM of both labels are set to 11
(Normal Operation) unless the Model 1203C is in the FAULT state (i.e., having detected a
hardware fault adversely affecting the navigation outputs), in which case the SSM of both
labels are set to 00 (Failure Warning).

FreeFlight Systems Proprietary Information P/N 86764 Page 25 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Request Acknowledge Response

Sat De-sel (170, 0)

ETA (162)

ETA (162)

ETA (162)

ETA (162)
HIL (343)

HIL (343)

HIL (343)
2 sec max
10 sec max
Figure 4: Prediction Response

Within 2 seconds of the receipt of a new prediction request, the Model 1203C acknowledges
the prediction request by responding with:
 ETA (label 162) containing the same time value as the ETA request, and echoing the
sequence bit, the SDI, and the FMS SDI of the ETA request, followed by
 HIL (label 343) containing a HIL of 0, an integrity sequence counter of 000, and
echoing the sequence bit, the SDI, and the FMS SDI of the request.
After acknowledging the prediction request, the Model 1203C responds with seven sets of
ETA and HIL labels containing the results of the RAIM predictions (at the specified latitude,
longitude and ETA ±15 minutes, every 5 minutes). The time between receipt of a prediction
request (label 170) and output of the last prediction result is less than 10 seconds.

Each space-time point is indicated in the Integrity Sequence Counter (bit 13-11 of label 343);
see Table 9. Any satellite de-selected in labels 146 and 170 are excluded by the Model
1203C in the computation of the predicted HIL.

FreeFlight Systems Proprietary Information P/N 86764 Page 26 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Table 9: Integrity Sequence Counter

Space-Time Point Time Integrity Sequence

Counter
1 ETA + 0 001
2 ETA – 5 min 010
3 ETA + 5 min 011
4 ETA – 10 min 100
5 ETA + 10 min 101
6 ETA – 15 min 110
7 ETA + 15 min 111

The ETA label:

 Contains the same time value as the ETA request, and

 Echos the sequence bit, the SDI, and the FMS SDI of the ETA request, and
 Has the Request Bus Designator (bit 13) set to 0, the Invalid Almanac bit (bit 12) set
to 0, and the Date/Time bit (bit 17) set to 0.

If barometric-correction was applied in the prediction, then bit 11 of the ETA label is set;
otherwise, it is cleared.

The HIL label:

 Contains the computed HIL for the space-time point, and

 Echos the sequence bit, the SDI, and the FMS SDI of the ETA request.

If the predicted integrity limit is greater than 16 nm or cannot be computed, then the Model
1203C sets the predicted HIL to full scale and sets the pRAIM Unavailable bit (bit 17) to 1;
otherwise, it is cleared.

Note: The Model 1203C will compute HIL values up to 16 nm. It is up to the requesting
FMS to determine if the reported HIL meets the required horizontal alert limit (HAL) for the
intended phase of flight.

Note: In contrast with the ARINC 743B specification, the Model 1203C does not repeat the
output of the RAIM predictions after responding with the initial seven prediction space-time
points.

Note: The Model 1203C does not set the Invalid Almanac bit (bit 12) or the Date/Time bit
(bit 17) in the ETA response label (label 162). Both bits are always set to 0. If almanacs are
not complete or the GPS has not acquired GPS time, the prediction will fail and the Model
1203C will set the pRAIM Unavailable bit (bit 17 of label 343). The Request Bus Designator
bit (bit 13 of label 162) is always set to 0.

FreeFlight Systems Proprietary Information P/N 86764 Page 27 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

10.3 ARINC 743 Outputs

The continuous ARINC 743 output consists of the labels listed in Table 10. Data content
conforms to the navigation data block defined in section 4.4.2.3 and Attachment 4-2 of
ARINC 743B.

Table 10: ARINC 743 Output Labels in Order 1

Label Description

273 Sensor Status

076 Altitude (MSL)
110 Latitude
111 Longitude
120 Latitude Fine
121 Longitude Fine
125 UTC
103 Track Angle
112 Ground Speed
130 HIL
133 VIL
165 Vertical Velocity
166 N/S Velocity
174 E/W Velocity
136 VFOM
247 HFOM
261 Date (BNR)
260 Date (BCD)
1472 Magnetic Variation
370 Height Above Ellipsoid
3712 Gen Av Equip Ident Code
377 Equipment ID
101 HDOP
102 VDOP
142 Velocity Vertical FOM
145 Velocity Horizontal FOM
140 UTC, fine
141 UTC, fine fraction
150 UTC
3523 Maintenance

1
System version 200E and later
2
Label 147, Magnetic Variation, and label 371, General Aviation Equipment Identification
Code, are part of the ARINC 429 General Aviation Subset (published by GAMA) and are not
part of the labels defined in ARINC 743.
3
Please contact FreeFlight Systems for additional information

FreeFlight Systems Proprietary Information P/N 86764 Page 28 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

10.3.1 ARINC 743 Update Rate

The nominal update rate all labels is selectable as 1 Hz or 5 Hz (transmission interval will be
1000 ms or 200 ms) ±10%. The 5 Hz update rate should be selected when the 1203C is the
ADS-B Out position source. The 5 Hz rate provides better margin to meet the AC 20-165B
ADS-B Out overall system latency and timing.

10.4 Serial Interfaces

10.4.1 NMEA 0183 Output

Note: This interface is not protected against lightning as specified in Appendix A2.

The NMEA output consists of the messages listed in Table 11. The nominal transmission
rate for each message is 5 Hz.

Note: Satellite information (GPGSV) may require the transmission of multiple messages. In
this case, the entire set of messages is output at a 5 Hz rate.

Table 11: NMEA 0183 Output Messages

Message ID Description
GPGGA GPS Fix Data
GPGLL Geographic Position
GPGSA GPS DOP and Active Satellites
GPGSV Satellites in view
GPRMC Navigation Information
GPVTG Track and Speed
GPZDA Time and Date

FreeFlight Systems Proprietary Information P/N 86764 Page 29 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

11 BUILT-IN TEST (BIT)

The Model 1203C performs Built-in Test (BIT) that includes tests to detect failures in the
following devices:

 EEPROMs containing Operational Software

 RAM
 Real-Time Clock
 RF Section
 Antenna
 Oscillator Drift
 Software Version Verification
 ARINC Transceiver

FreeFlight Systems Proprietary Information P/N 86764 Page 30 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12 APPENDICES

12.1 APPENDIX A1 – ENVIRONMENTAL, ANTENNA

Section 2.3 (Equipment Performance – Environmental Conditions) of RTCA/DO-301
identifies a minimum set of environmental conditions in RTCA/DO-160E under which an
antenna must perform to be in accordance with DO-301. These test sections and categories
are illustrated in the following table. The test categories shown are for an antenna mounted
external to the aircraft. Generally, not all antenna performance parameters will need to be
tested and evaluated for each test section. Additional test details are described in RTCA/DO-
301. FreeFlight Systems Antenna P/N: 86735 meet the DO-301 requirement.

Environmental qualification of a particular antenna should be determined by consulting the

manufacturer’s published specifications.

DO-160E Section Category

4.0 Temperature and Altitude F2
5.0 Temperature Variation A
6.0 Humidity B
7.0 Operational Shock and Crash Safety B
8.0 Vibration C,L,Y
9.0 Explosion Proofness X
10.0 Waterproofness S
11.0 Fluids Susceptibility (solvents, cleaning, and de-icing fluids) F
12.0 Sand and Dust D
13.0 Fungus Resistance X
14.0 Salt Spray S
15.0 Magnetic Effect A
16.0 Power Input X
17.0 Voltage Spike X
18.0 AF Conducted Susceptibility – Power Inputs X
19.0 Induced Signal Susceptibility ZC
20.0 Radio Frequency Susceptibility (Radiated and Conducted) RR
21.0 Emission of Radio Frequency Energy H
22.0 Lightning Induced Transient Susceptibility A3J33
23.0 Lightning Direct Effects 2A
24.0 Icing (antenna must operate with ice coating of 0.5 inches) C
25.0 Electrostatic Discharge A
26.0 Fire, Flammability C

Note: “X” signifies “Untested or When required”.

FreeFlight Systems Proprietary Information P/N 86764 Page 31 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

Section 2.3 (Equipment Performance – Environmental Conditions) of RTCA/DO-228

identifies a minimum set of environmental conditions in RTCA/DO-160C under which an
antenna must perform to be in accordance with DO-228. These test sections and categories
are illustrated in the following table. The test categories shown are for an antenna mounted
external to the aircraft. Generally, not all antenna performance parameters will need to be
tested and evaluated for each test section. Additional test details are described in RTCA/DO-
228. FreeFlight Systems Antenna P/N: 81194 meet the DO-228 requirement.

Environmental qualification of a particular antenna should be determined by consulting the

manufacturer’s published specifications.

DO-160C Section Category

4.0 Temperature and Altitude D2
5.0 Temperature Variation A
6.0 Humidity B
7.0 Operational Shock and Crash Safety B
8.0 Vibration C,L,Y
9.0 Explosion Proofness X
10.0 Waterproofness S
11.0 Fluids Susceptibility (solvents, cleaning, and de-icing fluids) F
12.0 Sand and Dust D
13.0 Fungus Resistance X
14.0 Salt Spray S
15.0 Magnetic Effect A or B
16.0 Power Input X
17.0 Voltage Spike X
18.0 AF Conducted Susceptibility – Power Inputs X
19.0 Induced Signal Susceptibility Z
20.0 Radio Frequency Susceptibility (Radiated and Conducted) W
21.0 Emission of Radio Frequency Energy Z
22.0 Lightning Induced Transient Susceptibility A3J33, L
23.0 Lightning Direct Effects 2A
24.0 Icing (antenna must operate with ice coating of 0.5 inches) C
25.0 Electrostatic Discharge X
26.0 Fire, Flammability X

Note: “X” signifies “Untested or When required”.

FreeFlight Systems Proprietary Information P/N 86764 Page 32 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12.2 APPENDIX A2 – ENVIRONMENTAL, SENSOR P/N 84327-50-200X

and 84327-50-XXXX

The Model 1203C Sensor meets the environmental test categories detailed below in accordance
with RTCA/DO-160F, Environmental Conditions and Test Procedures for Airborne Equipment.

NOMENCLATURE: Model 1203C GPS/SBAS Sensor

PART NO: 84327-50-200X and 84327-50-XXXX
MANUFACTURER: FreeFlight Systems
ADDRESS: 3700 Interstate 35 South
Waco, Texas 76706-3756 USA

DO-160F Environmental Test Model 1203C

4.0 Temperature and Altitude C4/D/A
4.5.2 Operating Low Temperature -40°C (C4)
4.5.4 Operating High Temperature +70°C (C4)
4.5.1 Short-Time Operating Low Temperature -40°C (C4)
4.5.3 Short-Time Operating High Temperature +70°C (C4)
4.5.1 Ground Survival Low Temperature -55°C (C4)
4.5.3 Ground Survival High Temperature +85°C (C4)
4.5.5 Loss of Cooling N/A
4.6.1 Altitude +50,000ft (D)
4.6.2 Decompression +50,000ft (A)
4.6.3 Overpressure -15,000ft (A)
5.0 Temperature Variation B
6.0 Humidity A
7.0 Shock & Crash Safety B
8.0 Vibration S Curve C
& U2
9.0 Explosion Proofness X
10.0 Waterproofness W
11.0 Fluids Susceptibility X
12.0 Sand and Dust X
13.0 Fungus X
14.0 Salt Spray X
15.0 Magnetic Effect A
16.0 Power Input B
17.0 Voltage Spike B
18.0 Audio Frequency Conducted Susceptibility – Power Inputs B
19.0 Induced Signal Susceptibility AC
20.0 Radio Frequency Susceptibility RR
21.0 Emission of Radio Freq Energy MM
22.0 Lightning, Induced Susceptibility A2J33
23.0 Lightning, Direct Effects X
24.0 Icing X

FreeFlight Systems Proprietary Information P/N 86764 Page 33 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

25.0 ESD A
26.0 Fire, Flammability C

Note: “X” signifies “Untested”.

FreeFlight Systems Proprietary Information P/N 86764 Page 34 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12.3 APPENDIX A3 – TYPICAL INTERCONNECT DIAGRAMS

12.3.1 1203C Integration with Any Flight Management, Navigation, Traffic

Awareness and Air Data Computer Systems

FreeFlight Systems Proprietary Information P/N 86764 Page 35 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12.3.2 1203C Integration with a Becker BXT6513 Diversity Mode S / ADS-B

Transponder

FreeFlight Systems Proprietary Information P/N 86764 Page 36 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12.3.3 1203C Integration with an L3 ACSS/ Bendix King NXT700/ MST 70B
Mode S / ADS-B Transponder

FreeFlight Systems Proprietary Information P/N 86764 Page 37 of 39

 Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

12.4 APPENDIX A4 - LIST OF COMPLIANT ADS-B TRANPONDERS

AND UAT’s THAT INTERFACE TO THE 1203C

Transponder /
Manufacturer P/N Description MOPs1
UAT
FreeFlight Systems UAT ADS-B
FDL-978-TX 85595-00 282B
Transmitter
87098-XX and 87098-XX- FreeFlight Systems UAT ADS-B
FDL-978-XVR 282B
XXXX Transceiver
7510700-951 Mod AT ACSS Mode S Transponder with Mode
RCZ-852 260A
See ACSS Install Manual ES ADS-B Out functionality
622-9210-409
Rockwell Collins Mode S Transponder 260A,
TDR-94D 622-9210-501
with Mode ES ADS-B Out functionality 260B
See Rockwell Collins Manual
7510733-623
Honeywell Mode S Transponder with 260A,
RCZ-854M 7510733-626
Mode ES ADS-B Out functionality 260B
See Honeywell Install Manual
Rockwell Collins Mode S Transponder
822-1338 with Mode ES, elementary and
TPR-901 260A
See Rockwell Collins Manual enhanced surveillance ADS-B Out
functionality
9007000-55YYY
NXT 700 / Bendix King / L3 ACSS
See L3 ACSS Installation 260B
MST 70B Mode S/ADS-B Transponder
Manual
BXT6513-(XXX)
-(000) default Diversity Mode S Transponder with
BXT6513 260B
See Becker Avionics Installation ADS-B
and Operation Manual
1
Contact FreeFlight Systems for additional information and STC validation

FreeFlight Systems Proprietary Information P/N 86764 Page 38 of 39

Equipment Installation Manual
Model 1203C GPS/SBAS Sensor

LIMITED WARRANTY
I. HARDWARE
FREEFLIGHT SYSTEMS, LTD. (“FREEFLIGHT”), 3700 INTERSTATE 35 S, WACO, TX 76706, HEREBY WARRANTS TO THE FIRST RETAIL
PURCHASER ONLY, THAT HARDWARE PURCHASED HEREUNDER WILL BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP FOR A
PERIOD OF TWO (2) YEARS FROM THE DATE OF INSTALLATION, NOT TO EXCEED THIRTY (30) MONTHS FROM THE DATE OF SHIPMENT FROM
FREEFLIGHT’S FACTORY. SHOULD DEFECTS BE FOUND, FREEFLIGHT AT ITS OPTION, WILL REPAIR OR REPLACE THE PRODUCT IN WHICH
PHYSICAL DEFECTS IN MATERIALS OR WORKMANSHIP OCCUR. THE FOREGOING STATES THE SOLE LIABILITY AND OBLIGATION OF
FREEFLIGHT ARISING OUT OF THIS WARRANTY, AND SUCH WARRANTY IS SUBJECT TO THE FOLLOWING CONDITIONS AND LIMITATIONS.
(A) THE DEFECT SHALL OCCUR UNDER NORMAL USE AND SERVICE FOR WHICH THIS PRODUCT WAS INTENDED. FREEFLIGHT SHALL NOT BE
OBLIGATED OR LIABLE UNDER THIS WARRANTY FOR DEFECTS WHICH FREEFLIGHT’S EXAMINATION DISCLOSES ARE DUE TO: (1)
TAMPERING, (2) MISUSE, (3) ABUSE, (4) NEGLECT, (5) IMPROPER STORAGE OR MAINTENANCE, (6) USE IN A MANNER BEYOND WHICH SUCH
EQUIPMENT IS NORMALLY INTENDED TO BE USED, (7) IMPROPER REPAIR OR POOR WORKMANSHIP BY THOSE WHO ARE NOT AUTHORIZED
BY FREEFLIGHT TO REPAIR THE PRODUCTS OR USE OF DEFECTIVE MATERIAL BY SUCH UNAUTHORIZED PERSONS, AND (8) ANY OTHER
CAUSE EXCEPT FOR DEFECTS IN MATERIAL OR WORKMANSHIP CAUSED BY FREEFLIGHT.
(B) THE WARRANTY CARD SUPPLIED WITH THE PRODUCT MUST BE COMPLETED AND RETURNED TO FREEFLIGHT WITHIN 15 DAYS OF
INSTALLATION OF THE PRODUCT IN ORDER FOR THIS WARRANTY TO BECOME EFFECTIVE.
(C) THE PRODUCT IS SOLD AND INSTALLED BY AN AUTHORIZED DEALER. A LIST OF ALL AUTHORIZED FREEFLIGHT DEALERS MAY BE
OBTAINED FROM FREEFLIGHT. .
(D) FREEFLIGHT SHALL HAVE NO LIABILITY TO CUSTOMER, TO THE EXTENT THAT ANY CLAIM OF INFRINGEMENT ARISING FROM ANY
MODIFICATION, SERVICING OR ADDITION MADE TO THE ITEMS BY ANYONE OTHER THAN FREEFLIGHT OR ITS AUTHORIZED
REPRESENTATIVE.
(E) THE PRODUCT SHALL BE RETURNED TO FREEFLIGHT VIA THE DEALER WITH TRANSPORTATION CHARGES PREPAID. AFTER
CORRECTION OF THE DEFECTS, THE PRODUCTS WILL BE RETURNED TO THE PURCHASER, TRANSPORTATION CHARGES PREPAID, EXCEPT
FOR RETURNS TO PURCHASERS IN FOREIGN COUNTRIES, WHICH PURCHASERS SHALL BE RESPONSIBLE FOR PAYMENT OF SUCH CHARGES
FROM THE AMERICAN PORT OF EXIT TO PURCHASER’S PLACE OF BUSINESS. THE RISK OF LOSS OR DAMAGE TO ALL PRODUCTS IN TRANSIT
SHALL BE ASSUMED BY THE PARTY INITIATING THE TRANSPORTATION OF SUCH PRODUCTS.

II. ITEMS NOT COVERED BY WARRANTY

EXCEPT FOR THE EXPRESS WARRANTIES GRANTED IN SECTIONS I ABOVE, FREEFLIGHT MAKES NO OTHER WARRANTIES, EXPRESSED OR
IMPLIED, WITH RESPECT TO ITS PRODUCT AND DISCLAIMS THE SAME. FREEFLIGHT MAKES NO EXPRESS OR IMPLIED WARRANTY WITH
RESPECT TO THE DESIGN, ADEQUACY, ACCURACY, RELIABILITY, SAFETY OR CONFORMANCE WITH GOVERNMENT STANDARDS OR
REGULATION OF ANY FLIGHT PROCEDURE PRESCRIBED BY A GOVERNMENT AUTHORITY, INCLUDING, BUT NOT LIMITED TO, ANY EXPRESS
OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FURTHER, FREEFLIGHT MAKES NO WARRANTY,
EXPRESS OR IMPLIED, WITH RESPECT TO THE ADEQUACY, ACCURACY, RELIABILITY, SAFETY, OR CONFORMANCE WITH GOVERNMENT
STANDARDS OR REGULATIONS, OF ANY INFORMATION CONTAINED IN THE PRODUCT WHICH IS PUBLISHED BY OTHERS OR WHICH
FREEFLIGHT OBTAINED FROM OTHERS. FURTHER, FREEFLIGHT MAKES NO EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE
COMPLETENESS OF ANY DATA, FLIGHT INFORMATION, OR FLIGHT PROCEDURE CONTAINED IN ITS PRODUCT. FREEFLIGHT DOES NOT
INCLUDE ALL AVAILABLE DATA IN ITS PRODUCT.

III. LIMITATIONS ON WARRANTY

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IF ANY, AND SAID IMPLIED WARRANTIES ARE HEREBY
EXPRESSLY EXCLUDED AND DISCLAIMED. WHERE THE PRODUCT IS USED OR PURCHASED PRIMARILY FOR THE PURCHASER’S PERSONAL
OR FAMILY USE, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IF ANY, ARE HEREBY
EXPRESSLY LIMITED TO TWO (2) YEARS FROM THE DATE OF PURCHASE OF THE PRODUCT. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF AN IMPLIED WARRANTY, OR OF INCIDENTAL OR CONSEQUENTIAL DAMAGES; THEREFORE, THE ABOVE LIMITATIONS
CONCERNING THE EXCLUSION OF IMPLIED WARRANTIES AND LIMITATIONS OF DAMAGES MAY NOT APPLY TO YOU. THIS WARRANTY
GIVES YOU SPECIFIC RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.

LIMITATION OF LIABILITY
FREEFLIGHT’S LIABILITY ARISING OUT OF THIS AGREEMENT SHALL NOT EXCEED THE AMOUNTS PAID BY YOU TO OBTAIN THE PRODUCT.
FREEFLIGHT SHALL NOT BE LIABLE FOR SPECIAL, CONSEQUENTIAL, INCIDENTAL OR OTHER TYPES OF DAMAGES, INCLUDING WITHOUT
LIMITATION, LOSS OF USE, LOST PROFITS, AND PERSONAL INJURY. FREEFLIGHT EXPRESSLY EXCLUDES AND DISCLAIMS SUCH DAMAGES
RESULTING FROM OR CAUSED BY, THE USE, OPERATION, FAILURE, MALFUNCTION OR DEFECT OF ANY FREEFLIGHT PRODUCT, WHETHER
OR NOT LIABILITY FOR SUCH DAMAGES IS DUE TO TORT (INCLUDING NEGLIGENCE), CONTRACT, WARRANTY, OR STRICT LIABILITY. THESE
LIMITATIONS WILL APPLY EVEN IF FREEFLIGHT OR AN AUTHORIZED DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE,
AND NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. YOU ACKNOWLEDGE THAT THE AMOUNT PAID
FOR THE PRODUCT REFLECTS THIS ALLOCATION OF RISK. SOME STATES DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY
FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. To obtain service
under this warranty contact: FreeFlight Systems at (254) 662-0000.

FreeFlight Systems Proprietary Information P/N 86764 Page 39 of 39