Kestrel Ballistics Changes for Firmware Version 1.

47
And HUD Change for Firmware Version 1.03
This document will go through the new changes introduced with
FW version 1.47. A list of the changes is shown below and this
document will help explain those changes:

1) Battery % change
2) Ballistics profile organization
3) Zero Offset Direction Change
4) 20 clicks per mil/moa added
5) HUD holdover predial added
6) App Bug Fixes

To update your Kestrel and HUD firmware, just simply connect them to the
Kestrel LINK Ballistics app for Android or iOS and follow the prompts after
connection.
 Battery Percentage Change

Upon Startup, you To see the actual Highlight Battery Make sure Type is
will see battery bars percentage, press the and press the center set correctly and the
(up to 5) instead of gear button to go to button. Life will show
a battery percentage the Main Menu. remaining battery
Scroll down to percentage.
System and press
the center button.

NOTE: The battery percentage is still very temperature dependent. Wait until the Kestrel reaches a
steady state and view the percentage in the System menu for the most accurate results.
 Zero Offset (ZO) Direction Change

Positive Value Negative Value Negative Value Positive Value

Zero Height remains positive going

up and negative going down

Prior to firmware 1.47, Zero Offset After firmware 1.47, Zero Offset is
was defined as negative going right defined as positive going right and
and positive going left. negative going left.

NOTE: You do NOT have to change any current profiles as the Kestrel will adjust
properly. This is for new profiles moving forward.
 Ballistics Profile Organization

E 0.25 Umoa A MANAGE GUNS MANAGE GUNS MANAGE GUNS

Usergun2 On
W 0.37/0.72R Usergun1 On Usergun1
Usergun2 On Usergun1 On
Usergun2
Ballistics… Usergun3 On Usergun3 Usergun3 On

Manage Guns… exit adjust exit adjust exit adjust

From the main ballistics Highlight the gun you Highlight the gun you After using the up and
screen, scroll down to want to re-order and want to re-order and down arrows to re-order
Manage Guns and press press the red capture press the red capture the profiles, press the red
the center button. button. button. You will see up capture button to lock it
and down arrows appear. in place.

Continue this process for the other profiles and then they will appear in that order when scrolling on the
main ballistics screen. Re-ordering can also now be done in the Kestrel LiNK Ballistics for Android app as
well and transferred over. We apologize to iOS users that will not have this option.
 20 Click per MIL / MOA

Some customers are using scopes with a 0.5cm clicks built into the turrets.
Before the update, this was not able to be inputted into the Kestrel. Now with
FW 1.47, you can set it to up to 20 clicks, either in the Kestrel or Kestrel LiNK
Ballistics app.

E 0.25 Umoa A GUN… Elevation Unit Elev. Clicks

Eunit clik Eclck… 20/mil Units per mil
W 0.37/0.72R
Wunit mil
Wind… 3:00 5mph Delete Gun Go

Gun… Usergun1 adjust adjust adjust

From the main ballistics Highlight Eunit and set to Use the left or right arrow to Submenu shown where
screen, scroll down to Clik. Then press the change to 20 clicks per mil. you can adjust mil,
Gun and select the Gun center button. If unit does not show MIL, tmoa, smoa, etc
you would like to update. press center button to enter
submenu to change it
 HUD Holdover Predial
Please ensure HUD firmware has 1.03 (or later) to access this feature. Connect the HUD to
Kestrel LINK Ballistics to update it

Tgt 2.50U Wnd1 Tgt 2.50U Elv

Bluetooth… Bluetooth…
A 0 0.5L A 0 2.5U
Stage Timer… Stage Timer…
B 1.5U 1.0L B 1.5U 4.0U
Hldovr Predial Off Hldovr Predial 2.5U
C 2.0U 1.2L C 2.0U 4.5U
Screens… Screens…
D 2.5U 1.5L D 2.5U 5.0U
Single Tgt Setup… Single Tgt Setup…
E 3.0U 1.7L E 3.0U 5.5U
Resolution 100ths Resolution 100ths
F 3.3U 1.8L F 3.3U 5.8U
System… System…
G 4.0U 2.0L G 4.0U 6.5U
About… About…
H 4.3U 2.2L H 4.3U 6.8U
I 5.5U 2.6L I 5.5U 8.0U
J 5.8U 2.8L J 5.8U 8.3U

Press the power button to Set the value of the holdover All the holds will be relative When using this
go to the main menu. you want. In this case, I’m to the value entered. For feature, the 3rd
Scroll down to the new making it 2.5U. Exit out to example, Target B is really column can be
menu item Hldover Predial. multi-target screen. a 4U hold but only 1.5U changed to show
from Target A. actual elevation holds.
 App Bug Fixes
Here is a list of the Kestrel LINK Ballistics app bug fixes:

Android
• Adjust ZO so positive value indicates a POI change to right
• Export from Range Card is only exporting in MILS even though file says SMOA
• Allow up to 20 clicks / mil or moa
• Lead does not show MOA in app
• Export Range card not working with Samsung S20 and Pixel 5
• Ballistic profile organization

iOS
• Adjust ZO so positive value indicates a POI change to right
• Lead does not show MOA in app
• Export from Range Card is only exporting in MILS even though file says SMOA
• Allow up to 20 clicks / mil or moa
• Tgt Card elevation and windage are wrong with in. and cm
• Cannot manually enter Range into the single target screen