The ATC-1200Y3 Test Set contains a built-in crystal-controlled signal generator, attenuator and modulators. It is intended to work in combination with a dual trace oscilloscope to give a absolute bench test of the necessary features of civil ATC Transponders and DME sets. The ATC-1200YE system is capable of simulating a DME or Transponder ground station.
The Test Set has all the RF hardware to test a DME or Transponder. This hardware has a circulator to lead the transmitter power to a dummy load and power monitor, and to lead the signal generator to the receiver in the DME or Transponder. RF monitors are incorporated for looking the transmitter output and the input to the receiver. A diode switch in sequence with the signal generator is used to modular the signal generator to acquire above 80 dB on-off ratio for the transponder interrogation and above 85 dB on-off ratio in DME mode.
Characteristics
Measures peak power and transmitter frequency
0.01 mile digital ranging steps from -1 to 999.89 NM
10 KT velocity steps from 0 to 9990 KTS
Paired VOR (108.0 - 139.95 MHz) or direct frequency (950 - 1225 MHz) readout
Echo on DME mode
All present and future DME channels
Suppressor pulse output in XPDR and DME modes
Crystal-controlled, leveled L Band generator
Crystal-controlled, digital selection of distance and velocity
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