[linux-dvb] Problem with Twinhan and mini-diseqc

Anders Nordahl ano at du.se
Fri Mar 24 13:16:31 CET 2006


On Mar 24, 2006, at 11:17 AM, Nico Sabbi wrote:

> Anders Nordahl wrote:
>> Hello,
>> I can't seem to get my mini-diseqc to work:
>> I have a dish wih 2 lnb pointed at Sirius and Thor (input a and b  
>> respectively) connected to a mini-diseqc.
>> When i try to scan the channels I get channels from Sirius  
>> regardless of what i set the -s parameter to dvbscan to.
>> I have tried this with stock drivers from a number of 2.6-kernels  
>> as well as the Mercurial rep. as of 2006-03-21.
>>
>> A quick check of the archives didn't turn upp anything apparent,  
>> so I'm asking if anyone has a recommendation or if I just have  
>> broken hw.
>> The mini-diseqc works with the old (ie. ancient) stb.
>>
>> /Anders
>>
>
> just to verify, you could try to use dvbstream -D A (or -D B) ...  
> and see if it works as expected.
> Please, use a fresh cvs checkout from SF, not official (and  
> ancient) releases.
>
>    Nico
>
Thanks,
dvbtools from cvs seems to work, which seems to indicate that  
something is broken in the linuxtv.org dvb-apps...
Is this a known fact?
Are there any alternatives to using dvbscan to discover channels?

/Anders



results from dvbstream:
A random FTA channel from Sirius:
./dvbstream -D A -analyze -n 10 -f 11881 -p h -s 27500
dvbstream v0.6 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Tuning to 11881 Hz
Using DVB card "DST DVB-S", freq=11881
tuning DVB-S to Freq: 1281000, Pol:H Srate=27500000, 22kHz tone=off,  
LNB: 65
SETTING SIMPLE A BURST
DISEQC SETTING SUCCEDED
Getting frontend status
Event:  Frequency: 13162000
         SymbolRate: 27500000
         FEC_inner:  9

Signal strength: 14592
SNR: 8799
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI  
FE_HAS_SYNC
dvbstream will stop after 10 seconds (0 minutes)
Using 224.0.1.2:5004:2
version=2
Streaming 1 stream
Caught signal 1 - closing cleanly.

Same channel, but other port on mini-diseqc:
./dvbstream -D B -analyze -n 10 -f 11881 -p h -s 27500
dvbstream v0.6 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Tuning to 11881 Hz
Using DVB card "DST DVB-S", freq=11881
tuning DVB-S to Freq: 1281000, Pol:H Srate=27500000, 22kHz tone=off,  
LNB: 66
SETTING SIMPLE B BURST
DISEQC SETTING SUCCEDED
Getting frontend status
Not able to lock to the signal on the given frequency
dvbstream will stop after 10 seconds (0 minutes)
Using 224.0.1.2:5004:2
version=2
Streaming 1 stream
Caught signal 1 - closing cleanly.


Initail tuning data for Thor:
./dvbstream -D B -analyze -n 10 -f 11247 -p v -s 24500
dvbstream v0.6 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Tuning to 11247 Hz
Using DVB card "DST DVB-S", freq=11247
tuning DVB-S to Freq: 1497000, Pol:V Srate=24500000, 22kHz tone=off,  
LNB: 66
SETTING SIMPLE B BURST
DISEQC SETTING SUCCEDED
Getting frontend status
Event:  Frequency: 12744000
         SymbolRate: 24500000
         FEC_inner:  9

Signal strength: 16896
SNR: 7249
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI  
FE_HAS_SYNC
dvbstream will stop after 10 seconds (0 minutes)
Using 224.0.1.2:5004:2
version=2
Streaming 1 stream
Caught signal 1 - closing cleanly. 
                                                                         
          



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