19 | 11 | 2018
TT21 Transponder PDF Print

Trig TT21 Mode S Transponder

The TT21 is a TSO'd class 2 low power transponder ideal for gliders (current draw is less than 0.5 amp).

The Control Unit fits conveniently into a standard 57 mm panel cut-out while the main unit with integral altitude encoder can be mounted remotely behind the panel or in the baggage compartment.  The combined mass of both units is only 500 g.

This Mode S transponder will also integrate well with the flarm system.  Installing a Mode S and Flarm unit with proper configuration of both untis will allow other flarm equipment to ignore the transponder signal from your glider and track only the flarm signal.

Installing only a Mode S and flying in a gaggle with other gliders will cause chaos with everyone else's flarms!  So if you are considering a Mode S only and fly with lots of other flarm-equipped gliders, please install both.

 

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Price: $2345 US