The TT22 ia a high power low profile ADS-B out capable transponder with integrated altitude encoder. Requires external GPS source.
The head unit will fit the tightest panel space. The RT can be mounted anywhere, and unlike the TT21 it is a Class 1 transponder and has plenty of power to spare. The other advantage of the TT22 is that the altitude encoder is built into the head unit, simplifying installation, calibration and future testing requirements.
To make this unit ADS-B capable it must have a certified WAAS GPS source supplied to it from an external unit, such as the Trig TN70 blind GPS.
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