After talking to Jean-Pierre F6DZP about his Tutioune software.
I had another look at the S2-3600 DVB-S/S2 USB dongle I bought.
I have managed to hack some code, that using the Linux DVB API
can tune the dongle to 1.3 GHz and lock onto my SDR generated DATV
signal. Next I am going to have to look at embedding Video inside a
QT4 application so I can make a homebrew DATV receiver. Most of the
Linux Apps for DTV are designed for broadcast reception and are not
convenient for amateur use. I have found an example of using the VLC
library for embedding Video so I will have a hack at that.
I will keep the transmit app and receive app separate