[Re: [linux-dvb] Compro Videomate DVB-T200 and friends

hermann pitton hermann-pitton at arcor.de
Tue Sep 12 20:38:45 CEST 2006


Hi James,

Am Montag, den 11.09.2006, 22:13 +0100 schrieb James Fidell:
> Hartmut Hackmann wrote:
> 
[...]
> 
> > A last hint. When i investigated the tuner module of you card, i noticed
> > that it tunes very slowly. When you notice that several scans give
> > different
> > results, the cause can easily be that the tuner can receive all signals,
> > but
> > a timeout of the scan routine prevents this.
> 
> I'll check that out.
> 
> If I may return to a comment in one of your earlier emails, you wrote:
> 
> > The tda10046 does not correct for frequently reported offsets of
> > 167000Hz, which seem to be mostly negative in the UK. So in case you
> > miss a multiplex, you might try to "dvbscan" again with such offsets.

guess that was me.

> Is this likely to be the reason that the DVB-T200 card gives dvbscan
> errors like:
> 
> >>> tune to:
> 802166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> WARNING: >>> tuning failed!!!>>> tune to:
> 802166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> (tuning failed)
> WARNING: >>> tuning failed!!!retrying with f=530000000
> >>> tune to:
> 530000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> (tuning failed)
> WARNING: >>> tuning failed!!!>>> tune to:
> 530000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> (tuning failed)
> WARNING: >>> tuning failed!!!retrying with f=634166670
> 
> where the Hauppauge card finds more channels?

If it is not caused by a too early timeout, likely this could be the
case. Think there is no database of all the transmitters yet.

Cheers,
Hermann





More information about the linux-dvb mailing list