Which would be an indication of proper operation of a SSB transmitter rated at 60 watt PEP output?

Correct Answer: Option A — In SITOR communications, the power meter can be seen fluctuating regularly from zero to the 60 watt relative output reading.

SITOR (Simplex Telex Over Radio) uses FSK modulation, which produces a constant carrier signal. Consequently, the power meter will show a steady output or fluctuate between the mark and space frequencies, confirming the transmitter is successfully generating the required RF energy for data transmission during the communication cycle.