Trig TT31 Mode S transponder

£2,148.00 £1,790.00 (ex. VAT)

Trig TT31 Mode S transponder inc. mount kit and connectors

Out of stock

SKU: 7-TT31U Categories: ,


This is a complete transponder kit and includes a mounting tray, connector kit, installation manual and the transponder.

The Trig TT31 Mode S transponder has been designed to meet the European elementary surveillance requirements. The TT31 stack transponder has unparalleled installation benefits and class leading performance.

Trig’s TT31 transponder is the ideal retro-fit for the popular Bendix King legacy transponders. The TT31 will ‘plug and play’ straight into an existing KT76A, KT76C and KT78A tray. This significantly reduces both installation time and cost. It provides pilots with Class 1 Mode S technology that is also 1090ES ADS-B Out capable too – to the latest international standard.
The TT31 transponder is an ED-73B Class 1 compliant Mode S level 2 datalink transponder, with support for extended squitter.

It meets all the requirements for non-diversity Mode S elementary surveillance transponders in Europe for both IFR and VFR flight. The TT31 also supports 1090 MHz Automatic Dependent Surveillance Broadcast (ADS-B) extended squitter. By linking the TT31 to your existing GPS receiver, the TT31 can transmit position information to appropriately equipped ground stations and other aircraft. The TT31 will also be field upgradeable to support Traffic Information Service (TIS) functions, where available, by interfacing to an appropriate cockpit display.

Certified for IFR / VFR flight
Amongst the lowest power consumption in class
TIS traffic capabilities – portable and/or panel mounted avionics
Backlit LED display
No cavity tube – no warm up time required (no need for dropper resistors)
Software provides the widest compatibility with third party avionics
Unbeatable value and quality – designed and manufactured in the U.K.
Two year worldwide warranty

Height: 40mm (1.57″)
Width: 160mm (6.30″)
Length: 239mm (9.4″)
Weight: 2.8lbs. (1.35Kg)

Additional information

Weight 0.00000 kg