Originally Posted by HappyCamper5
it all makes or breaks at the current consumption of the 12V system. if your VTx consumes less than 300mA (I think it does? assuming you use a 500mW) then you can use it no problem.
I'm using the DPCAV.com 900 Pro
. Specs say 220mA typical. That's less than I thought it would be. I'll have to measure the current draw on my watt meter to be sure though.