My QMX had been working great. When listening on 40m during some qrn, but not actually thunderstorm at my qth, QMX shut down. Rebooted and rx on 80, 60 and 40 m has gone. -50db or so on audio sweeps. Very strong sigs still just audible
30m and 20m are not affected and signals coming through fine.
Reinstalled firmware, still no rx on the lower bands.
Transmit side working as before, full RF out on all bands.
What might have have failed??
The bandpass MUX?
Rich
G4PCE
Rich Collins