[mythtvnz] Can't get lock on some channels

[Julius Spencer]

Hi Steve,


> It should all happen automatically when you do a channel scan. I'd try to tune the two multiplexes from the shell, e.g. with:
> dvbtune -f 1183000 -s 22500 -p h -m
> 1183000 is the intermediate frequency from the LNB. The two multiplex frequencies are 12456000kHz and 12483000kHz - subtract your LNB local oscillator frequency from these to get the intermediate frequency to use. In my case my LNB (an old Sky installed one) has a frequency of  11300000.
> 
> If you can lock the two frequencies with dvbtune then myth must be misconfigured. Easiest might be to just rescan. If you can't lock one of the frequencies from the command line then something else is the problem - hardware or driver most likely.


I tried the following:
(Does this look right? Thanks again.)


./dvbtune -f 1706000 -s 22500 -p h -m
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:134543876, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Bit error rate: 0
Signal strength: 2816
SNR: 65182
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=2816, Verror=0, SNR=65125dB, BlockErrors=0, (S|L|C|V|SY|)
FE READ UNCORRECTED BLOCKS: : Operation not supported

(^^^^^^^^^^This went on...)


./dvbtune -f 1733000 -s 22500 -p h -m
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:134543876, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Bit error rate: 0
Signal strength: 2816
SNR: 65051
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=2816, Verror=0, SNR=65155dB, BlockErrors=0, (S|L|C|V|SY|)
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=2816, Verror=0, SNR=65208dB, BlockErrors=0, (S|L|C|V|SY|)
FE READ UNCORRECTED BLOCKS: : Operation not supported

(^^^^^^^^^^This went on...)