Unfortunately 12188 H doesn't work with any image with DM920 UltraHD DVB-S2 FBC PVR,only 12341 H,MIS 40.I tried 5 images and none of them worked.But more seriously,don't lock the symbol rate under 1000 Ks!
And a personal opinion,Broadcom Dual tuners FBC performances are far inferior to Silab's.A great disappointment with the DM920 FBC for me at the reception.I say it even if I'm upset the fans of this model.
Once again a trend in the world of satellite receivers is confirmed,manufacturers are no longer interested in the reception side but only in the media. Now the receivers are media toys and less receivers