Total posts : 45366
Suggestion: Get the mixer board or the source of content as far away from the xmtr and tx antenna as possible! I had a problem with this in one of my set ups. I changed my patch cords to 20′ long ones from the mixer to the xmtr to keep them rf’s from getting into my input stuff..
Also, try a counterpoise ground. Take a piece of copper wire, any kind, around 8-10 ft. long and connect this to your mixer board ground. Just sting it along the baseboard of your studio room, trying to keep it as straight as possible. Listen to a dead carrier while moving the wire around and you may find that magic spot where it goes away..
I had an issue where the mic cord was acting like an antenna. When I faded my live mic in, I would get a “Hum” or a “Buzz”. The counterpoise ground took care of it. Also, keep the gain of the mike on the mixer down as low as possible. Leave the mic “Hot” if this is when you hear the problem while putting the countrepoise ground wire in the studio..
“What are these rf’s and how do they do that..?”