PowerMax pm3-100 received & hooked up. Works great nice and quiet. No noise from it in receive or locally heard transmit. Don't have a ground wire attached in the provided location but will probably do so. Need to do some wire management.
S-700-12......S-400-12......PowerMax PM3-100
View attachment 37128
View attachment 37129
So did you just flick the side switch to locked voltage and go with it??