Im a bit confused about the RF Gain knob and have always just had it cranked way up. I read this and now im not sure if it should be set like that, can anyway dumb this down a bit for me. "RF gain: This is similiar to squelch but it does not cut out the noise. The RF gain attenuates incoming signal. It only reduces the signal strength of which you are receiving them at, so very strong station will be slightly affected while distant stations will not be heard. This does not actually affect their output signal, it only affects the signal you receive."