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Trig Product Software

Get the latest performance benefits from your Trig product

Improvements and new features are available for your Trig product through software updates. These can be carried out by an Approved Trig Dealer, qualified as a certified maintenance organisation. The current version of software installed in your Trig product will be shown on the display at initial power up.

Software versions run numerically, the higher the number the more recent the release – so the latest software will always include all the features of earlier versions. Trig has occasionally released interim software updates, but for convenience these have  been incorporated into the versions shown below. Each entry highlights the primary features of each software update.

If you’d like advice about the suitability, or need to update your Trig unit please contact your local dealer. They will be able to help you and organise the upgrade of your avionics.

TT31 Transponder

24/08/2017         version 3.16

This software adds support for the Trig TN72 as a FAR 91.227 compliant ADS-B position source.

13/08/2014         version 3.13

This adds compatibility with Garmin’s ADS-B Plus protocol for GNS and GTN navigators. This allows these Garmin units to be used as the GPS source for certified ADS-B Out. Improvements to front panel rotary knob functionality also added.

24/03/2014         version 3.11

Introduces user configurable serial ports, providing greater installation flexibility. Improves automatic dimming of the display backlight. Also adds automatic generation of the transponder Mode S address when a valid aircraft registration is configured (only applicable for ‘N’ registration aircraft). Adds support for the Trig ADS-B protocol which is used by various GPS position sources, including the Avidyne IFD440 and IFD540 for ADS-B.

03/08/2012         version 3.4

Improvements made to ADS-B Extended Squitter function to RTCA DO-260B standard (as required by 14 CFR 91.227). Support added for Garmin 4X0W and 5X0W GPS sources for ADS-B.

21/01/2010         version 2.5

This software adds the ability to receive TIS ‘A’ traffic in relevant US airspace, via RS232 output.

19/12/2008         version 2.3

Adds support for FreeFlight and NextNav GPS sources for ADS-B.

30/10/2008         version 2.2

This improves the timeout behaviour when a new Squawk code has been input.

13/02/2008         version 2.1

Improvements to Bendix King KLN94 GPS receiver support for ADS-B.

18/12/2007         version 2.0

This adds ADS-B Extended Squitter functionality for NMEA 0183 protocol output GPS sources. Also adds support for Squat switches and recall of previous squawk code after powering off.

TT21 and TT22 Transponders

04/09/2017        version 2.12

This software adds support for Trig TN72 as a FAR 91.227 compliant ADS-B position source (for Light Sport and Experimental Aircraft). It adds GPS only air-ground determination algorithm for ADS-B Out.

24/03/2017        version 2.11

This software improves general transponder behaviour in gliders implementing ADS-B. 2.11 also adds some minor performance improvements.

28/10/2016        version 2.10

This software adds compatibility with GPS position sources, such as the Trig TN72.

11/06/2015         version 2.7

This adds compatibility with Garmin’s ADS-B Plus protocol for GNS and GTN navigators. This allows these Garmin units to be used as the GPS source for certified ADS-B Out. Additional support added for Trig ADS-B protocol, this allows Avidyne’s IFD440/540 to be used as the GPS source for ADS-B. Certain transponder warning messages will clear when the warning conditions are no longer present.  Introduction of support for TSO-C199 TABS GPS position sources.

14/09/2012         version 2.4

Updates ADS-B Extended Squitter functionality to RTCA DO-260B standard (required by 14 CFR 91.227). New interfaces added for Garmin 4X0W and 5X0W and further interface improvements made.

09/03/2010         version 1.4

This software adds the ability to receive TIS ‘A’ traffic in relevant US airspace.

30/06/2009         version 1.2

This version improves transponder operation in high temperature environments.

TC20 Transponder Control Head

04/09/2017       version 1.14

This software adds support for Trig TN72 as a FAR 91.227 compliant ADS-B position source and adds GPS only air-ground determination algorithm for ADS-B Out.

17/09/2015         version 1.12

Introduction of support for TSO-C199 TABS GPS position sources.  This requires that the associated TT21 / TT22 hardware unit is loaded with software at level 2.7 or above.

22/10/2013         version 1.10

This adds manual adjustment of the control head LCD backlight brightness.

11/05/2012         version 1.7

This version adds configuration support for DO-260B ADS-B installations. Introduced configuration to connect to Garmin ADS-B position sources.

09/03/2010         version 1.3

This software adds the ability to receive TIS ‘A’ traffic in relevant US airspace.

TY91 and TY92 VHF Radios

08/07/2017        version 1.8

This introduces a change to the internal processing to accommodate a variation in one of the integrated circuits used in the TY91 and TY92. In particular version 1.8 software corrects an error in the power-up behaviour of the radio.

13/04/2015         version 1.7

This improves radio squelch, reducing unwanted interference from external sources.

05/05/2014         version 1.5

This adds self clearing of warning messages and also a configurable microphone gain control.

TC90 VHF Radio Control Head

28/02/2017         version 1.5

This update improves compatibility with third party devices such as the Dynon Skyview and Garmin G3X.

06/01/2015         version 1.4

This adds Dual Control functionality – the ability to control a TY91 or TY92 radio with two TC90 control heads in tandem aircraft or gliders.

05/05/2015         version 1.3

Addition of self clearing warning messages and configurable microphone gain control. Please note these features require the associated TY91 / TY92 radio software to be updated to version 1.5 or higher.

TY96 and TY97 VHF Radio

09/08/2017       version 1.6

This software improves memory behaviour by opening at the previously selected frequency record when re-entering the memory screen. Software version 1.6 also improves name lookup by always using the most recently selected memory choice when two entries have the same frequency.

20/02/2017       version 1.5

This software improves receiver performance and radio reliability. This update also improves compatibility with third party devices, including Dynon Skyview and Garmin G3X.

06/09/2016        version 1.3

This improves transmitter side tone performance when using the mono output.

02/08/2016        version 1.2

This software addresses radio reliability.

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