[linux-dvb] Re: DST & Twinhan-Card

[Manu Abraham <manu@kromtek.com>]

On Tue November 16 2004 10:59 pm, Stefan Schenk wrote:
> This might be also of interest for the list
>
> I was playing around with the values Jamie was talking about ...
> without success.
> There must be some other differences between DVB-T in Australia and
> Germany ....
>
> Stefan
>
> -----Ursprüngliche Nachricht-----
> Von: Jamie Honan [mailto:jhonan@optushome.com.au]
> Gesendet: Sonntag, 14. November 2004 23:38
> An: Stefan Schenk
> Betreff: Re: DST & Twinhan-Card
>
> On Sun, Nov 14, 2004 at 12:14:37PM +0100, Stefan Schenk wrote:
> > Hello Jamie,
> >
> >
> >    as i saw on the dvb-mailing-list you did a lot of great work,
> > making the Twinhan-cards working under linux. I have a very strange
> > problem here. I use a DVB-T card from the german company HAMA which is
> >
> > said to be a 100% clone of Twinhans VisionDTV. I can load the drivers
> > and everything looks perfect. The problem is, that i get a very bad
> > signal in (vdr's femon-plugin shows someting between 15% and 30%) and
> > therefore the picture is very very bad.
On the Twinhan satellite cards, when the signal is weak, the picture is very 
bad.

> > When i start the card with the same antenna in the same room under
> > windows i get a full signal and a perfect picture.
Are you sharing interrupts ?

> >
> > Do you have any idee whats wrong with my system or my card ?
What are the values you see when you use *zap ?

> >
> > Thanks a lot
>
> Hmm. Everything looks good as far as module loading goes.
Load the module with the debug and verbose options.

>
> I guess there's a lot more undocumented registers etc.
Only a couple are known at this time.


Manu
>
> One thing you could try, the guy who got it going was in Australia,
> which has 7Mhz bandwidth. You are either 8 or 6. Most apps try
> BANDWIDTH_AUTO, which I notice sets 7 MHz.
>
> You could try playing round with this in the code.
> I haven't a copy of the latest versions but look for code
> like this:
>
>                 case BANDWIDTH_6_MHZ:
>                         val[6] = 6;
>                         break;
>
>
>                 case BANDWIDTH_7_MHZ:
>                 case BANDWIDTH_AUTO:
>                         val[6] = 7;
>                         break;
>
>
>                 case BANDWIDTH_8_MHZ:
>                         val[6] = 8;
>                         break;
>
> and try moving BANDWIDTH_AUTO to 8Mhz.
> (actually I see two spots)
>
> You might also try 0 for Auto and see what happens.
>
> Let me or the list know.
> Jamie