I have encountered an issue but I don't know what's the reason:
When transmitting with LimeSDR Mini, I see a constant tone in the background of my signal, but I don't have the same with PlutoSDR. To show you the difference, I made screenshots with a muted microphone while transmitting. As you see Pluto has a clean signal, but LimeSDR Mini still has that tone (although the mic is mute)
All the hardware and software setup are the same (SDR Console latest version with the same config, CN0417 pre-amp and also the same PA)
Have anyone else made a similar observation? Do you know what's the source?
I have also attached 2 pictures of the output of the two SDRs connected directly to spectrum.
Pluto connected to spectrum:
LimeSDR Mini on spectrum:
Pluto on QO100 WebSDR:
LimeSDR Mini on QO100 WebSDR: