[mythtv-users] Re: [gentoo-user] Tuning QAM w/ pcHDTV3000

[Michael Haan]

On 5/23/05, Michael Haan <michael.haan at gmail.com> wrote:
> On 5/23/05, Alex Stagg <alex at bitrouter.com> wrote:
> > QAM and 8VSB are two different modulation schemes. 8VSB is used for digital
> > off the air (ATSC) signals in the US. QAM is used on Cable systems. That's
> > all about this topic but maybe it will help you sort out what you want to
> > do.
> >
> > -----Original Message-----
> > From: Michael Haan [mailto:michael.haan at gmail.com]
> > Sent: Monday, May 23, 2005 8:10 PM
> > To: Discussion about mythtv; gentoo-user at lists.gentoo.org
> > Subject: [gentoo-user] Tuning QAM w/ pcHDTV3000
> >
> > I'm not sure I'm doing this right.  I have the card installed, running
> > 2.6.12-rc4.  The drivers seem to load as does the firmware.  I've built
> > dvb-apps and tried:
> >
> > ./atscscan atsc/us-NTSC-center-frequencies-8VSB
> >
> >
> > And got nothing but:
> >
> > >>> tune to: 803000000:8VSB
> > WARNING: >>> tuning failed!!!
> > >>> tune to: 803000000:8VSB (tuning failed)
> > WARNING: >>> tuning failed!!!
> >
> >
> > Does that mean there are no QAM channels I can get?  Or do I need to do
> > something more?  What about 64 vs 256?
> >
> > --
> > gentoo-user at gentoo.org mailing list
> >
> > --
> > gentoo-user at gentoo.org mailing list
> >
> >
> 
> Ok, I've found a file with proper frequencies and am finally getting a
> signal lock:
> 
> root at tibeaux root # ./dvb-apps/util/szap/azap -r C104
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> tuning to 675000000 Hz
> video pid 0x0000, audio pid 0x0000
> status 1f | signal 126d | snr fd47 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 126d | snr fd43 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 126d | snr fd5b | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> 
> 
> A post I read (http://www.pchdtv.com/forum/viewtopic.php?t=688&highlight=qam)
> mentioned needing to run dvbtraffic to get the "pids".  I get this:
> 
> 
> tibeaux root # ./dvb-apps/util/dvbtraffic/dvbtraffic /dev/dvb/adpater0/frontend0
> read: Bad file descriptor
> 
> 
> My question is - do I need to do this?  If I'm getting a lock, what do
> I do next to enable myth to use this card?
> 

So, no one can tell me how to take a seemingly working card and get
myth to use it?