Mac Michaels schrieb: > If FE_ATSC were changed to FE_VSB as suggested then > ATSC --> FE_QAM | FE_VSB > Ok, aggreed. Patrick Boettcher schrieb: > > So, no you must not fill or read dvb_qam_parameters when passing it to a > FE_ATSC frontend. If you want to tune to a QAM signal with an FE_ATSC > you have to set vsb.modulation to QAM_256. Just like when you would tune > to QPSK when setting up a COFDM-frontend. > > Only the vsb-field is handled by FE_ATSC. Ok, this was confusing for me, because there was already a structure for QAM. I think some documentation is needed here ;-) I would appreciate, if someone could also have a look on the other questions of mine. - dvb api version query function - compatibility layer for api4 to downsize to api3. Tnx Rainer
