FYI, Katy at BTech allowed me to overclock my RPT50 to 12.8V, but last night while testing I was experiencing a hum while talking to my wife from the driveway over the repeater. Spoke again with Katy this morning and she suspects it’s due to the higher voltage. I’ll back it down to 12.5V tonight. I should still be north or 40W at that setting and do desire clarity during conversation Hopefully the hum issue will be behind me.
[UPDATE] My hum problem is gone after I backed the voltage down to 12.5V. I also tested my antenna and got great results! I can’t do the distance test yet, though. The inverter I bought for my car won’t power the DuraComm LPX-14 / Midland MXT500.