Hi Flie,
I used the 6903x card with IQmonitor_2407 at 15.0W. I was able to lock the signal and get FeedReport on 11013 V with StreamReader version 109. Does not work with versions older than 101. I only got a lock on one transponder. But for what I/you wanted to achieve, I think it's enough. The High Spectra scan took a long time.
Regards