No Waterfall with SDR RX

[Johan Lehmann]

I am pulling some hair out on this one. I installed v1.24 now. I have two SDR RX's, RSP1A and RTL dongle, both are listed in the SDR setup menu, and I can select anyone of the two. I get audio from a passing satellite on my speakers but no waterfall display inside Skyroof.

I played with the new waterfall display controls just below the word Waterfall, no effect. Enable, disable nothing gets me a waterfall display. Sample from log file attached.

73

Johan

[Alex VE3NEA]

Maybe you have RF Gain set to zero? Sdrplay has its gain scale reversed, 0 is max, 100 is min.

Please send the whole log file, the piece you have included does not show the waterfall part.

[Johan Lehmann]

Thanks Alex

Very best for 2026 to you.

Attached is a longer log file. Did try RF gain between 0 and 100 for both SDR's.

Thanks

[Alex VE3NEA]

There is no indication of any problems with the waterfall in the log, sorry. All looks good, both signal processing and visualization, so the cause of the problem is unknown.