[linux-dvb] Low symbol rates on FF DVB cards

Klaus Schmidinger Klaus.Schmidinger at cadsoft.de
Wed Dec 7 18:14:34 CET 2005


Oliver Endriss wrote:
> w-thiel at gmx.net wrote:
> 
>>On Sun, Dec 04, 2005 at 01:27:04PM +0100, Oliver Endriss wrote:
>>
>>>...
>>>
>>>I did some tests using
>>>BBC WS English;BBC WS:11131:vC34:S13.0E:5630:0:457=eng:0:0:5003:318:3801:0
>>>
>>>Test results:
>>>ALPS BSRU6 (old Nova-S)				ok
>>>ALPS BSRU6 (FF rev. 2.1):			ok
>>>Grundig 29504-451 (Activy budget GR)		failed [1]
>>>ALPS BSRV2 (FF rev. 1.3)			failed [2]
>>>
>>>[1] as expected, tuner supports 12..30 Msymbols/s only
>>>[2] tuner supports 1..45 Msymbols/s
>>>
>>
>>I'm quite sure you will get a lock with the ALPS BSRV2 if you use 5632
>>instead of 5630 as the symbol rate.
> 
> 
> Correct! After spending two evenings for debugging I found that the NIT
> does not contain the correct symbol rate. vdr automatically adjusted
> the symbol rate according to the NIT -> 5630.
> 
> For low symbol rates the ves1893 will lock if (and only if) the symbol
> rate has been set correctly. 5632 works, 5631/5633 won't.
> Register programming in the driver appears to be ok.
> 
> @Klaus:
> http://www.lyngsat.com/i1002.html specifies SR 6111 for your
> transponder. Does it work if you change the SR to 6111?
> 
> Oliver

I'm afraid I won't be able to test that before Dec 15 (that's the next
time that transponder will be used again, at least AFAIK).

Klaus



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