To be able to view this channels on the DM800 you need to edit the pids, make sure you add all the parameters manually.This was tested on nabilosat and works well.
Check these parameters for the channel using dreamboxedit
Satellite Position: 28,2
Transponder: 2052
Frequency: 10876000
Vertical
FEC 5/6
Other Parameters :2:0
Video Pid: 518
Audio: 646
Teletext: 582
PCR: 8190
Extra Parameters: C:0960,C:0961,C:0963
Enter these with dreambox edit then do a hard reset (pull the plug out the back then put it back in) to get the changes to register in the lamedb.If you are changing it with out the reboot it won't work, or register the changes that you are making.