[linux-dvb] Technotrend Budget S2-3200 Digital artefacts on HDchannels

Manu Abraham abraham.manu at gmail.com
Tue Jan 27 21:14:38 CET 2009

Alex Betis wrote:
> On Mon, Jan 26, 2009 at 7:50 PM, Manu Abraham <abraham.manu at gmail.com>wrote:
>> On Mon, Jan 26, 2009 at 8:19 PM, Alex Betis <alex.betis at gmail.com> wrote:
>>> Latest changes I can see at
>>>> http://mercurial.intuxication.org/hg/s2-liplianin/ were made about 7
>>>> to 10 days ago. Is this correct? If that's correct, then I'm using
>>>> latest Igor drivers. And behavior described above is what I'm getting.
>>>> I can't see anything related do high SR channels on Igor repository.
>>> He did it few months ago. If you're on latest than you should have it.
>> It won't. All you will manage to do is burn your demodulator, if you happen
>> to
>> be that lucky one, with that change. At least a few people have burned
>> demodulators by now, from what i do see.
> What are the symptoms of burned demodulator? How can someone know if its
> still ok?

The first time i saw it was that the DVB-S2 demod was returning no
carrier. After some time it was stating timing error for DVB-S as
well. Finally it all ended up with demodulator I2C ACK failure, and
eventually a frozen machine after a week (my test boxes run throughout)

Touching the demodulator, i happened to have almost a burned finger.
I wanted to know whether this was a single case. During the
development phase, i did mention it to Julian about this, since he
was the very first person to test for the stb0899 driver. He
jovially laughed about a burned demodulator and a finger, left his
machine on after i did some tests on it. Eventually he too had the
same results. Finally we changed cards.

> Does your mantis driver work ok with such channels?

I don't have such channels. Tested with a max of 27.5 MSPS


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