TT31 Mode S Stack Transponder | Complete Kit

The TT31 class leading, Mode S transponder is a popular retrofit transponder for legacy transponders. With plug and play compatibility, the TT31 to installs directly into an existing KT76A, KT76C, and KT78A mounting trays from Bendix King significantly reduceing installation time and cost — to provide pilots with 1090ES ADB-S capable Class 1, Mode S technology.
This TT31 transponder kit includes the TT31 Mode S Stack Transponder, mounting tray, connector kit, and user manuals.

• Certified for IFR / VFR flight meeting TSO-C166b
• Improved retrofit performance — ‘plug and play’ Mode S for KT76A, KT76C and KT78A
• ADS-B Out with using popular GNS and GTN WAAS navigators
• Free FAA ADS-B STC for 650 aircraft types
• Trig Express Lane for the fastest installation
• Amongst the lowest power consumption in its class
• 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
• Two-year warranty from date of install, U.S. based technical support

Weight:
2.8 lb (1.35 kg)

Dimensions:
40 x 160 x 239 mm (1.57 x 6.30 x 9.4 in)

Supply voltage:
11V — 33V

Typical Current Consumption (at 14V):
Idle: 0.22 A, active: 0.45

Nominal transmitter power:
240 W at connector

Operating temperature:
-20°C to 70°C

Cooling requirement:
No fan required