Dbox2 2xI kabel. no tuner lock on freq below 313 Mhz

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x_ile
Beiträge: 1
Registriert: Dienstag 18. Februar 2003, 04:18

Dbox2 2xI kabel. no tuner lock on freq below 313 Mhz

Beitrag von x_ile »

Hi,

Can someone here maybe tell me if a dbox2 can tune to transponders below 313Mhz?

For higher freq the lock and sync is very stable. So I don't see why it can't lock and sync the others.

I had someone test my cable signal and the dvb streams in it and he got a lock on every single one with a good snr +- 60dB and a 0 bit error rate.

I allready tried the latest alexw image and also made my own images out of the cvs stable and unstable branch.

So i tried the old dvb drivers with kernel 2.4.19 and also the latest dvb driver with kernel 2.4.20 but still nogo.

When I try to tune on 313 Mhz all is fine.

# dvbtune -f 313000000 -s 6875
Using DVB card "VES1820 based DVB-C frontend"
tuning DVB-C to 313000000, srate=6875000
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_CARRIER FE_HAS_VITERBI
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Bit error rate: 31790
Signal strength: -1953824768
SNR: -539033600
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
#
(Signel strength and SNR are incorrect in this version of dvbtune so you can ignore them)

but on 305 Mhz,

# dvbtune -f 305000000 -s 6875
Using DVB card "VES1820 based DVB-C frontend"
tuning DVB-C to 305000000, srate=6875000
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_CARRIER FE_HAS_VITERBI
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_TIMEDOUT FE_HAS_CARRIER FE_HAS_VITERBI
Not able to lock to the signal on the given frequency


From the FE_STATUS I gather it does see the signal but I can't see to get more debug info from any of the loaded modules that looks more helpfull..


I anyone has any idea....

thnx in advance.