I noticed my marker line was getting chopped up at times on both Spectrum Lab screens. At first I thought it was another strong carrier off-screen for the SL display but still within the 500-Hz Cw fi
Hi Bill, I think the other traces disappear because the AGC is enabled? BTW your trace at 136.170 kHz may reduce the S/N of the wanted signal since it affects the noiseblanker treshold. So better swi