Total posts : 45366
Gerry posted: I wonder what the FCC agents would say if an elevated transmitter was supplied with isolated power and audio using transformers? The lines going up to the transmitter would still radiate due to RF coupling even though they are not directly DC connected. Also if you feed a ground-mounted transmitter with power and audio that is not isolated, the lines would still radiate anyway.
The type of isolation that is needed is for r-f (AC above the audio range), not DC. If that is done carefully, the conductors leading away from the tx and connecting to anything else will not radiate any significant amount of r-f, no matter what their length.
What an FCC agent might say about this is questionable, no doubt.