Hi, Dennis Noordsij wrote: >>>Now, I understand there can be a million reasons why the sourcecode does >>>something else, and I wouldn't know any of them, but the reason I am >>>asking is that in order to tune to QAM_128 (remember Siemens DVB-C) Marko >>>discovered register 1 should be set to 120 instead of 126 for QAM_128. >> >>(Hmm, I'd suppose a typo which did not showed up in our tests:) >> >>Unfortunally we have only QAM_64 transmissions here, and there the value >>was correct... >> >> >>>Which brings the >>>question, why does a different value than the datasheet work for for >>>example QAM_64, but not for QAM_128 ? >> >>For QAM_64 values in registers 1 and 9 were equal (106). > > > DUH! > True :-)) Didn't notice :) > > The one thing I'm still wondering about is that the Hauppauge DVB-C also uses > a VES1820 (according to the driver output - "ves1820 as used on the Siemens > DVB-C"), and it tunes QAM_128 fine with the unmodified register 1 values. > > Also, is there any difference at all between the Vista and the Philips > VES1820's ? Or just the markings?
I suppose this problem is caused by the different tuner module or PLL. If somebody finds a parameter set that works better please contact me. - Holger -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
