[vdr] Re: Can't record Sat.1

[Onno <onnok@web.de>]

Hi,

Tobias Haustein schrieb:
> * Gregor Lawatscheck (gpel@mpex.net) [030515 18:20]:
>
>
> > > > channels. However, after starting a recording, these bit
> > > > errors went away.
> > > If you have problems on all channels on that transponder it sounds much
> > > like the good old dect-phone-next-to-cable-problem. May that be the
> > > cause?
> My DECT phone station is about 6 meters and two walls away from the VDR server.
> I don't think it is responsible for the problem.
wheew, 6 metres, it should be able to transmit 30 metres in this 
enviroment, so nope, 6 metres and 2 walls is nothing for a dect phone!
and it might still be responsible, also remember the sattelite cables 
might run closer to a dect phone (not even you own one!) that you think.

> I don't know yet what triggers the problem, but when it happend last (I
> think around midnight of 18/19 may) I managed again to make things work by
> doing the following:
>
> The bad channel in that case was Pro7. I switched to RTL and started to
> record it. I then switched to WDR3 and started to record it. After that, I
> switched again to Pro7 and the problem was gone. Stopping the still running
> recording on WDR3 didn't harm then. As all this has absolutely no influence
> on my DECT phone and this "starting two recordings and stopping them again"
> procedure fixed the problem at least three times now, I don't think it is
> DECT related.
good point, but that still leaves some doubts:
the FE always tunes a little bit diffrent (auto fine tuning?), dect 
phones switch frequenzies very often, the FEC and bitstream error 
correction in the mpeg2 hardware sometimes are enough to recover a 
picture, sometimes not.

> When I saw the problem for the first time, I couldn't see Pro7 at all (black
> screen) and VDR did not record anything! What confuses me is that the tech
> patch showed bit errors when the problem happened.
what would hint to interferences, like dect _or_ your sat-switch
is not always cleanly switching (14/18 volt;22khz)....

> > This sounds a bit ambitious but just for kicks you could try the patch I 
> > submitted earliert (save your remux.c beforeand and copy it back if it 
> > doesn't make a difference). I have the suspicion that mux (on Astra 
> > 19.2.E?) is also experimenting with VBR / statmux and might confuse the 
> > decoder. 
hmm could well be, vh-1 also made trouble.
 but i have even more trouble with autopid patch,when i record on 2nd 
interface, without recording on first.
If i record on first and second all is ok.
Without autopid it also ok.

> I'll give it a try if the problem occurs again. Since I'm very busy this can
> take some time.
>
>
> Thanks, ciao,
>
> Tobias
Cheers Onno

P.S.
i have a CTplus, a CT1 and 3 DECT phones "found" in our house,
2 upstairs (2 and 3 metres from sat cables, now double shielded)
2 at my parents flat (both relocated to farest room from me)
1 my own CTplus has now an analog only replacement and the base
  station is now under the roof, the handset is off, unless i
  recieve a call indicated by the analog phone

and yes, out sat cables where cheap .......
and yes, next tme i promisse to by better shielded cables :-)



--
Info:
To unsubscribe send a mail to ecartis@linuxtv.org with "unsubscribe vdr" as subject.