[linux-dvb] Pinnacle PCTV Sat HDTV Pro USB (452e) packet loss

Tony Grant tony at tgds.net
Fri Dec 14 15:11:40 CET 2007


Le vendredi 14 décembre 2007 à 13:49 +0000, John Goacher a écrit :

> Your success with Das Erste prompted me to
> temporarily re-align my dish (Sky minidish) to point to 19.2E to see if
> I could duplicate your results. The good news is that I get a
> perfect recording from Das Erste. I recorded about 15 minutes of data, then
> ran it through TSReader Lite to check for errors. There were absolutely no
> errors of any kind indicated ! I double checked this by viewing the
> recording in DVBViewer Pro under XP.
> 
> This is interesting because the signal strength from Das Erste (as displayed
> by DVBViewer Pro under Windows XP) is much lower than I'm getting from Astra
> 28.2E (I'm based in the London area). Das Erste displays a signal strength 
> reading
> of 41%, whereas the BBC channels at 28.2E (on which I'me seeing high error 
> rates)
> show signal strengths of around 65%. I think this probably rules out signal 
> quality as
> the issue, and suggests the problem is somehow related to the channel 
> parameters.

I have issues with 28.2E compared to 19.2E and always have had. 19.2
just works whereas 28.2 is much more finicky. Last week a big storm
cloud over the Pyreneans blocked all signal for about 10 minutes - BBC2
just stopped and it is one of the better signals. During thunder storms
on 19.2 you have some artifacts but I have never lost the carrier.

>> Note that during the BBC HD trial from Crystal Palace I was able to
>> record this channel from a DVB-T adapter without packet loss even on
>> the EPIA5000 (533 MHz Via Eden processor).

That is nice. EPIA M10000 with BBC HD on DVB-S I get sound but no image.

Cheers

Tony

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