Trig TT22 transponder

The TT22 is a two part transponder system, which includes an integrated altitude encoder. In design and technology the TT22 is identical to the TT21; the only difference is that the transmitted output power of the TT22 is higher, qualifying the unit as a Class 1 transponder. Class 1 transponders may be used on aircraft cruising faster than 175 knots, and operating above 15,000 feet, IFR or VFR.

The front panel controller is smaller than a standard instrument, and the remote transponder is not much bigger than a pack of cards. The TT22 can fit into the smallest of aircraft – and yet it is fully certified and compliant with all the transponder requirements.

The TT22 can be mounted in a standard 57 mm (2 1/4 inch) instrument hole, or where space is really tight, in a compact mounting just 42 mm high.

The TT22 is TSO approved for fitting to European and FAA registered aircraft.

Box includes installation kit.