I have a Magnum Raptor that I got from eBay. It works ok on everything but the high carrier and high peak settings. Recieve is good and low power works good. But when switched to high carrier and peak, it squeels some or just sounds like talking with a mouth full of peanuts. I hooked it up in the house and checked the frequency test points and vco voltages and they were good. AM high carrier modulation is rv15(I believe) or rv7, can’t remember without checking my notes but turning it either...
Magnum Raptor modulation help
Magnum Raptor modulation help