[mythtvnz] Problems with Sky2PC/Skystar 2 DVB-S

[Steven Ellis]

Stuart Whelan wrote:
> Hi Nick,
>
> Thanks for the reply, a couple of questions:
>
> If it was a dish alignment problem or cabling problem, would I expect
> to see it in dvbtune?
>
> My dvbtune output currently is:
>
> stuartw at ubuntu2:~$ dvbtune -c 0 -f 1183000 -s 22500 -D 0 -p h -m -tone 0
> Using DVB card "ST STV0299 DVB-S"
> tuning DVB-S to L-Band:0, Pol:H Srate=22500000, 22kHz=off
> 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_CARRIER
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
> Event:  Frequency: 1183409
>         SymbolRate: 22500000
>         FEC_inner:  3
> Bit error rate: 65520
> Signal strength: 52405
> SNR: 53403
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52526, Verror=240, SNR=53403dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52802, Verror=0, SNR=53418dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52455, Verror=0, SNR=53505dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52503, Verror=0, SNR=53430dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52472, Verror=0, SNR=53517dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52678, Verror=0, SNR=53421dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
>
>
> When I am having 'the problem the output is:
>
> stuartw at ubuntu2:~$ dvbtune -c 0 -f 1183000 -s 22500 -D 0 -p h -m -tone 0
> \Using DVB card "ST STV0299 DVB-S"
> tuning DVB-S to L-Band:0, Pol:H Srate=22500000, 22kHz=off
> 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_CARRIER
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_CARRIER
>
> And when I think I managed to catch it going 'bad':
>
> Signal=52412, Verror=0, SNR=53502dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=52565, Verror=0, SNR=53523dB, BlockErrors=0, (S|L|C|V|SY|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=45366, Verror=52992, SNR=29856dB, BlockErrors=0, (S|C|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=46733, Verror=65352, SNR=30636dB, BlockErrors=0, (S|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=45351, Verror=65520, SNR=30051dB, BlockErrors=0, (S|C|)
> FE READ UNCORRECTED BLOCKS: : Function not implemented
> Signal=38548, Verror=65520, SNR=28371dB, BlockErrors=0, (S|C|)
>
>   
Your LNB might be dying. I had similar problems recently and had to
replace mine.

The Verror is the give away which usually means bad skew.


Steve