[linux-dvb] [patch] Improvement dvb-s2 lock with KNC1 DVB-S2 Plus, Satelco DVB-S2, TT S2 3200, Technisat DVB-S2

jlacvdr jlacvdr at gmail.com
Tue Oct 9 10:02:31 CEST 2007

I rewrote a part of stb0899_dvbs2_algo( ) to remove duplicate source
code and to get a source code more readable.
I added also re-initialization of some registers.
The result is a lower probability to don't obtain the lock.

I tested on TT-s2 3200 and on Knc1 dvb-s2 plus.
It must work on other cards, the patch touch only stb0899 part.

I don't remember the time duration to lock, but if you want I can measure it.

The aim of this patch, it's obtain the lock all the time.


2007/10/9, Manu Abraham <abraham.manu at gmail.com>:
> jlac vdr wrote:
> > Hi,
> >
> > This is a patch which improve locking on dvb-s2 channels for card
> > using stb0899 (KNC1 DVB-S2 Plus, Satelco DVB-S2, TT S2 3200, Technisat
> > DVB-S2)
> >
> Can you please explain what your patch is trying to do ? I couldn't understand
> what you are trying to do.
> Also did you check with the KNC1 and the Satelco cards whether your patch,
> brings in an improvement on the LOCK 'ing ? If so, what improvement do you see ?
> With the current tree i get a lock within less than half a second. ~ 300 - 400 mS.
> (A bit hard to measure)
> Do you get a LOCK faster than that ?
> Regards,
> Manu

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