I am happy to announce that this evening, a first contact was made with 5B4AHJ on 40m in PHONE, with a Softrock RXTXv6.1 board.
was only 1 watt in an inverted-V antenna, but it was enough to realize the 3000km contact with Cyprus!
Now, I am really impressed by this all, but heej it was also my first contact on shortwave. I used a modified PowerSDR that permits the simultaneous usage of two cheap 2 channel soundcards.
Thanks Tony, for creating this wonderful RXTX !