Description (AMM 34-53-00)

 

A. The air traffic control (ATC) system provides altitude and identifiecation reply signals to an interrogating ATC ground station. The ATC system, when interrogated, automatecally transmits a pulse-coded reply signal to the ground station. This reply signal is used to identify and locate airplanes equipped with ATC equipment for air traffic control. the ground station radar scope displays airplane range, bearing, altitude, and airplane identity.

 

B. The ATC system consists of two ATC transponders, two ATC antennas, and a common control panel. The control panel enables selection of either the No. 1 or 2 transponder, and either No. 1 or 2 air data computer for automatic altitude reporting.

 

C. Electronics bus No. 1 and 2 supply 115 volts ac to the system through circuit breakers on P6 and P18, load control center-left and right.