Today I made my first SIM31 QSO. It took a while before I understood the possibilities of the software. (Het kwartje is gevallen ;-) ) My first qso was with an automatic station CT4KO/QRP on 20 meters. After him I worked SP3AMZ. You have to work with the newest software release. I use now version 6763. It’s nice to try this new software on several bands, to find out how it works. You can find more information & last release on the web site of ON4NB.