If you are getting a waterfall with PSK31 signals displayed, I would be a bit puzzled.? Perhaps start with digipan as it tends to be easy to get working.? Make sure you know what a PSK31 signal looks like on the waterfall.? If the emissions are something else, of course there won't be encoding.? The last version of digipan has a window for decoding all or most the signals in view.?
Since you are decoding something - one would think you have the right drivers installed.?
Possibly getting the gain setting right might be an issue - but if you have a nice waterfall the gain is okay.? It should not matter what ubitx software you have installed - PSK31 is grabbing the appropriate spectrum and letting the PC do all the work.? if you have another PC with soundcard - try receiving with a simple audio cable between them to verify all is okay with the ubitx here (if you can hear PSK31 sounds likely it is okay).?
Curt
