Some playing with programs and parameters reveiled the first results. Test were perfomed on my EeeTop (Atom N270, builtin soundcard). The soundcard creates birdies however. The image below show's a screen-catpure of Winradio with the receiver connected to the soundcard, but not the any mains supply.
1) Winradio by I2PHD works well. best results were obtained by setting the sample-rate to 96000. With an antenna connected, but by far to early in May (15:xx UTC) for the band to be open.
2) Rocky offers less features, seems however a nice choice for just listening into the band. Rocky offers two different screen setups. It's a very intuitive...
First capture shows Rocky in spectrum mode.
The second capture shows Rocky in waterfall mode.
3) SpectrumLab is very complex again. It's propably usefull to setup a grabber, for use as a receiver, it's a bit too complicated.
No other software was under scrutiny yet. As soon as there are signals on the band, I will continue testing, also publish some of my experiences in this very place.