User manual

Piper PA-31T Cheyenne X
Aerosoft GmbH 2007
80 81
80 81
KT 76C Panel-mounted Transponder Operation
About Transponders
Your Honeywell Bendix/King transponder is a radio transmitter and
receiver which operates on radar frequencies. Receiving ground radar
interrogations at 1030 MHz, it returns a coded response of pulses to
groundbased radar on a frequency of 1090 MHz.
As with other Mode A/Mode C transponders, the KT 76C replies with
any one of 4,096 codes, which differ in the position and number of
pulses transmitted. By „replying” to ground transmissions, your KT
76C enables ATC computers to display aircraft identification, altitude
and ground speed on Enroute, Approach or Departure Control radar
screens. When the IDENT button is pressed, your aircraft will be posi-
tively identified to the Air Traffic Controller.