I’ve verified that there is 12v from the radio on the RF output. I’ve also verified that the preamp is not working. Strange as it was working fine in my EME system but I was powering it with a separate line controlled by a sequencer. I wonder if there is some sort of choke or something that is added or removed when powered via the coax.

I also have no inline lighting arrestors and am not using an amp between the radio and antenna.

Rick, W2JAZ