[linux-dvb] Technotrend DVB-T 1200 rev 1.2 does not tune/work

Soeren Sonnenburg dvb-ml at nn7.de
Thu Oct 18 13:36:16 CEST 2007

On Tue, 2007-10-16 at 02:22 +0200, Oliver Endriss wrote:
> Soeren Sonnenburg wrote:
> > > Next you have to find out whether the card is broken or not.
> > > >From your results I guess something is broken, but you can only be sure
> > > if you test it with the windows driver. (There is a small chance that it
> > > is a card variant which is not supported yet.)
> > 
> > OK, I convinced someone to try the card under windows and well scanning
> > worked, for all the expected channels and we could tune... So the card
> > works. And we used that old tt_Premium_217g.zip driver... so I guess it
> > should work with linux too...
> > 
> > However also under windows it said dvb-s although we could load the
> > driver.
> Ok, the card works. There are two possibilities:
> - The frontend driver is broken.
> - The card is somehow different from those supported by the driver,
>   and a special handling is required.
> @all:
> Can someone confirm that the current dvb-ttpci driver works for DVB-T
> FF cards (ALPS TDLB7 tuner, sp8870-based)?

OK, I did a couple of experiments to check whether at least something
works with this card:

1. I used mplayer to play some video content. Picture and sound works
2. I played around with different antennas and scan and dvbtune ...
never ever did I see a channel lock... So tuning does not work. However
when I use a 'Zimmerantenne' + pointing it to certain directions the
signal becomes at least non-zero... (1c1c to 1f1f instead of 0000).

I also noted that it has to antenna inputs (I guess the other one is for
radio) but even when connecting two antennas, one to each input I could
not get any signal...

Any further ideas what I could try?


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