[mythtv-users] Difficult TV reception

[Jean-Yves Avenard]

As I did not see any answers. Is it because it doesn't belong to the
MythTV distribution list or it's something else?

very puzzling as to why reception would work fine outside mythtv for
all channels, but not inside.

JY

On 8/10/06, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> Hello
>
> Since I upgraded mythtv to the latest package available I can not tune
> to two channels.
>
> I have a PC with 3 DVB-T adapter running FC5 and the latest mythtv
> package from ATrpms.
>
> For some reasons on one of those adapter I can not tune to a specific
> channel. However, using dvbstream and mplayer I can watch this channel
> just fine with all 3 DVB-T adapters (I use something like dvbstream -c
> 0 -f 536625 -bw 7 -tm 8 -gi 8 -v 161 -a 81 -o | mplayer -) .
>
> When I select the channel with mythtv after a little while it shows up
> as a dark-grey empty box and you see the signal quality to vary
> between 20% and 60% (displayed at the bottom of the screen).
> At 20% signal quality, no doubt nothing can be received. However
> dvbstream/mplayer never gives me any trouble.
>
> tzap utility gives me:
> tzap -a 0 "SBS DIGITAL 1"
> status 1f | signal d36e | snr baba | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal b36e | snr b5b5 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal c371 | snr b7b7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal b368 | snr b8b8 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
>
> tzap -a 1 "SBS DIGITAL 1"
> status 1e | signal 7cff | snr cdcd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal 7def | snr cece | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal 7e0f | snr cfcf | ber 00000000 | unc 00000000 | FE_HAS_LOCK
>
> tzap -a 1 "SBS DIGITAL 1"
> status 1f | signal 6350 | snr baba | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 635a | snr bebe | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 7369 | snr bdbd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 7356 | snr bfbf | ber 00000000 | unc 00000000 | FE_HAS_LOCK
>
> As you can see, all adapters can grab a lock with this channel.
> But through MythTV it can't ...
>
> Any ideas what I could be missing/overlooked ?
>
> Thanks in advance
> JY
>