Reducing QTH/RX White Noise The QRM Problem. Our weekly open club net uses the repeater GB3CW. Sometimes, my home location (QTH) generates significant white noise, making listening to others’ transmissions on the net difficult (-to-impossible). Yet, my colleagues tell me that my transmissions are strong and audible (5/7 – 5/9). My tinnitus and brain-foibles can…
