Why isn there a trigger output from the rear panel?
A. In order for the timing module to produce a trigger output and the necessary gates to turn on the gated amplifier, a continuous wave (CW) radio frequency (RF) signal must be connected to the “CW In” connector on the module. If for some reason, the synthesizer has stopped operating or the CW amplitude is too small, then the timing module will not operate correctly and there will not be an output trigger from the RAM-10000. In Mark I and Mark II systems, the source of the CW signal is an external synthesizer, whose output is connected to the “CW In” connector on the rear panel of the RAM instrument. In Mark III and Mark IV systems, the CW signal is generated in the synthesizer module with a nominal peak-to-peak amplitude of 1V. In Mark VI systems, the CW signal at the desired operating frequency is generated by mixing the output from the synthesizer (fsynthesizer = foperating+freference = foperating +25 MHz) with the 25 MHz reference signal (freference) in the phase detector module to
