Total posts : 45366
The only time I can think of where a test tone would aid antenna tuning is if you are using a radio to monitor the signal strength.
If you follow the SSTRAN tuning instructions, the modulation may affect the meter readings and you may not get the best performance. Apparently, the magic 13 volts with unmodulated carrier was established to give good audio.
I don’t know what happens if you deviate from this, but tuning with modulation may affect the readings.
I don’t think there is anything to gained by tuning your antenna with a modulated carrier. By the way, 0 dB referenced to what? dB is always relative. Before the experts tell me I am wrong, even dBm is relative….to 1 milliwatt.