[linux-dvb] DViCO FusionHDTV DVB (ATSC/QAM) and MythTV

Todd Ignasiak ignasiak at gmail.com
Wed Jul 27 08:06:22 CEST 2005


I knew which physical channels each station was on, from using the
card in Windows.  I used the
channels.conf file here:
http://www.digitalregime.com/patches/channels.conf-qam-correct  which
I found on this page: http://www.linuxtv.org/wiki/index.php/PcHDTV

With that channels.conf, you can match the cable channel with the
frequency.  Then, you can match that frequency with the correct entry
in dtv_multiplex.    The first field in that entry is the channel's
"mplexid", which you match on the corresponding entry in the "channel"
table.

-Todd

On 7/26/05, Jack Kolesar <jack.kolesar at gmail.com> wrote:
> How did you find the freq's? Did you just go through every channel with azap?
> 
> On 7/26/05, Todd Ignasiak <ignasiak at gmail.com> wrote:
> > Hi Jack,
> >
> > My experience has been that the MythTV scan will not find channels
> > that don't have PSIP data.  On my cable system, all the local channels
> > are rebroadcast without modification, which includes the PSIP data.
> > MythTV finds these channels.       There are several cable-only HD
> > channels which are broadcast without PSIP data, and MythTV does not
> > find them.
> >
> > In these cases, I edited the channel data to point MythTV to the
> > frequencies where I knew the channels were.    There was just another
> > post asking about this on the list.       I'll post some mods for
> > mythweb to help with this, and some more info on the changes, as soon
> > as I can.
> >
> > -Todd
> >
> > On 7/26/05, Jack Kolesar <jack.kolesar at gmail.com> wrote:
> > > Darn.  Hit the enter button accidentally. Anyway, there is the drop
> > > down in Knoppmyth as well which is running 0.18.1 of MythTV.  I
> > > haven't been able to lock a QAM Signal yet though. It was working in
> > > M$ XP.  I've also noticed that the isolation between the OTA and Cable
> > > portions of the Fusion card is pretty poor.  Just plugging Cable in
> > > will make me loose several OTA Signals. Todd,  what do you mean about
> > > manually entering the QAM channels.  Will it not be able to find them
> > > on a scan without PSIP?
> > >
> > > ______________________
> > > Jack Kolesar
> > > AMDPower.com
> > > http://www.amdpower.com
> > >
> > > On 7/26/05, Todd Ignasiak <ignasiak at gmail.com> wrote:
> > > > On 7/26/05, Michael Krufky <mkrufky at m1k.net> wrote:
> > > > > If you want to test out the new version of the driver without waiting
> > > > > for the new kernel, follow instructions for using the merge scripts
> > > > > located at:
> > > > > http://linuxtv.org/v4lwiki/index.php/How_to_build_from_CVS
> > > >
> > > > Thanks for the pointer.  I will try this out after I attempt the next
> > > > challenge -- getting my pchdtv.com HD3000 card working in the same
> > > > system.
> > > >
> > > > > > Then, do a QAM scan, which should result in more channels found.  If
> > > > > > your cable company is broadcasting the PSIP channel data, the
> > > > > > channels should be automatically detected.  For channels without PSIP
> > > > > > data, you will need to manually edit the channel data (in the mysql
> > > > > > database) to enable those channels.
> > > > >
> > > > > How can we tell mythtv whether to scan using VSB or QAM ??? Is this one
> > > > > of the newer features found in the new subversion release of mythtv?  I
> > > > > cannot find a method for this in my gentoo version of mythtv.
> > > >
> > > > It is one of the options on the Channel Scan page.    I don't have
> > > > access to that system right now,  but I believe there is a pull-down
> > > > menu for selecting ATSC or QAM256 scan types in the channel scan page.
> > > >   This was in all the versions I have tried.
> > > >
> > > > _______________________________________________
> > > > linux-dvb mailing list
> > > > linux-dvb at linuxtv.org
> > > > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
> > > >
> > >
> > >
> > > --
> > >
> >
> 
> 
> --
> ______________________
> Jack Kolesar
> AMDPower.com
> http://www.amdpower.com
> 
> _______________________________________________
> linux-dvb mailing list
> linux-dvb at linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
>




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