- The ADS-B system airspeed switch kit from Peregrine provides air-ground input for ADS-B transmitters.
- Including Mode S transponders: Trig TT31, Trig TT22, and Bendix King KT74.
- The TT31 and TT22 are approved foMPL503-1r use with Peregrine ADS-B STCs per FAA-PMA.
To confirm correct operation while sitting on ground, turn the transponder mode knob to alt and the display should say grd, then you can increase pitot pressure to above the stall speed setting and the transponder display will switch to alt.
