TT21 compact mode S transponder

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The TT21 is a two part transponder with a compact control head; this includes an inbuilt altitude encoder - saving further space and expense. A separate hardware box can be installed anywhere in the airframe. The mounted control head is only 54mm deep and can be fitted in panel using a 57mm round hole or smaller compact mount, the unit ships with the necessary fittings for both install options. The TT21 unit is highly efficient and is ideal for use via an auxiliary battery in gliders, balloons and foot launched flight.
The TT21 is a popular compact transponder with 130 watts nominal power output. This is a class 2 transponder which meets international standards for 1090ES ADS-B Out (TSO C166b). The TT21 is ideal for use in flight where a light weight Mode S solution is required and is suitable for IFR and VFR use.
Older mode A and C transponders are now being replaced by Mode S, technology which is optimised for future airspace requirements. The TT21 transponder is easy to operate and with a crisp, bright display it is also easy to read in all lighting conditions. The transponder control head is splash proof too so it is ideal for open cockpit and seaplane operations.

van € 2.255,00

Special Price Incl. BTW: € 1.995,00 Excl. BTW: € 1.648,76


TT21 class 2 mode transponder

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  • TT21 class 2 mode transponder
  • TT21 class 2 mode transponder