[vdr] Re: Picture breaks up when recording

[Marc Parnell <marc@zoneworldwide.com>]

Dr. Werner Fink wrote:

> On Mon, Aug 04, 2003 at 02:54:37PM +0200, Marc Parnell wrote:
>  
> > Hi,
> >
> > I have a perfect picture from my system on all channels, but as soon as 
> > I start recording the picture breaks up (as if the satellite signal was 
> > suddenly too weak). The recording itself is also affected.
> >    
> Does this happen an _all_ channels_? All means here vertical _and_
> horizontal transponder.   For channels on a horizontal transponder
> the card has to provide 18V to enable the LNB to switch into
> horizontal polarization.  If the card only provides e.g. 17.5V or
> less in case of recording it depends on the LNB if receiving is
> possible and stable .. or if not.
>
> I see simliar if I use an SAT inline amplifier ... in other words
> the voltage is reduced by the amplifier and the LNB does not
> iswitch into a stable horizontal polarization.
>  
The problem was on all channels - as Rene suggested, it was the slow 
performance of the hard disk that was the problem.

Interestingly, I have found that I can only move my diseqc motor when 
13V is selected, since the card cannot supply enough currenty at 18V. I 
get around this problem by only using channels on vertically polarised 
transponders to move the dish.




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