With my RF gain at max and pre-amp on I get a noise reading (red) around 40dB. No sigs received. So I have to turn the pre-amp off and turn the RF gain right down, which gives a good noise figure but, with a de-sensitised Rx, I can only receive the strongest sigs. Does anyone else have this problem and would be grateful for any useful idea. Thank you. Gear is Icom 756PRO.
Mike G3HKH