So I got my hands on one and have dug all over the net for the way to get in and adjust the am modulation. Even Google ai has it wrong best I can tell. Something like hold down ptt with up and down buttons power radio on turn "vfo" channel knob down then up quickly before releasing. Its a turd with out a way to open up am audio! You key on high at say 20 watts carrier it swings 60 or so and quickly the limitter kicks in. This result in maybe 25 or 30 watts consistent audio real talking! HELP please. Other very cool features otherwise so I want to see some swing to drive an amp.