[mythtvnz] Have I got a dodgy DVB-T card?

[Steven Ellis]

Hi James

On 12/04/2009, at 10:52 AM, James Booth wrote:

> How do you force the card ID at boot? I got it working now (after  
> reboot):
> james at mythtv:~$ dvbtune -c 1 -m 674000000
> Signal=60138, Verror=65535, SNR=83dB, BlockErrors=0, ()
> Signal=55512, Verror=14371, SNR=88dB, BlockErrors=4212, (S|L|C|V|SY|)
> Signal=64250, Verror=0, SNR=176dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=64764, Verror=0, SNR=198dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=63736, Verror=91, SNR=161dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4365, (S|L|C|V|SY|)
> james at mythtv:~$ dvbtune -c 1 -m 690000000
> Signal=55769, Verror=65535, SNR=88dB, BlockErrors=0, ()
> Signal=54741, Verror=21659, SNR=83dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=64507, Verror=0, SNR=185dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=64764, Verror=0, SNR=198dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=63993, Verror=43, SNR=168dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=4308, (S|L|C|V|SY|)
> james at mythtv:~$ dvbtune -c 1 -m 706000000
> Signal=60138, Verror=65535, SNR=109dB, BlockErrors=0, ()
> Signal=56283, Verror=13696, SNR=90dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=60909, Verror=1888, SNR=120dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=63736, Verror=260, SNR=161dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=64764, Verror=6, SNR=198dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> Signal=65278, Verror=0, SNR=246dB, BlockErrors=2761, (S|L|C|V|SY|)
> I assume the Block Errors column figure is cumulative? Looks ugly.  
> Using the -i option on any frequency gives either a list of the  
> Kordia multiplex channels only, or "Nothing to read from fd_sdt".
>

Looks like you have reception issues. You signal strength is 99% but  
your quality is very low at under 1%.

Have you got splitters or boosters between you and the aerial? Also  
what is your analogue prime reception like.

Steve



Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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