Dear All,
Good news for you guys! TBS6902 Windows Driver is Updated to V1.0.0.3, which has fixed some bugs on diseqc function support. 
Have a try on newsest TBS6902 Windows Driver, enjoy incredible experience. Click here and download on http://www.tbsiptv.com/download/tbs-tv-tuner-card-pci-e/TBS6902/tbs6902_windows-driver_v1.0.0.3.zip
TBS6902 DVB-S2 Dual Tuner PCIe Card features in dual tuner for recording two different channels/transponders and supports you to watch and record Free to Air satellite TV on desktop PC.
It will meet your needs in building IPTV streaming system, HTPC, live broadcasting, media monitoring, digital content distribution, satellite HD/SD TV channels receiving etc.
For more details, pls see https://shop.tbsdtv.com/tbs6902-dvbs2-dual-tuner-pcie-card-p-135.html
Any question, pls feel free to contact us. Have a nice day! 
Best Regards,
Jenny
TBS Technology
THE BEST SOLUTIONS FOR DIGITAL TV AND MORE
Live TV Streaming | IPTV Head-end | OEM & ODM Solution