[mythtvnz] Trying to troubleshoot DVB-T artifacts

[Steve V]

________________________________

From: Jean-Francois Pirus <jfp at clearfield.com>
To: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
Sent: Sunday, 26 April, 2009 12:53:35 PM
Subject: Re: [mythtvnz] Trying to troubleshoot DVB-T artifacts


I think the SNR is useless if you dont' have an "S" (aka FE_HAS_SIGNAL)

On my Nova-T 500 this is what I get

dvbtune -c 2 - 530000000 -m
Signal=22375, Verror=2097151, SNR=0dB, BlockErrors=0, (C|V|SY|)
Signal=32857, Verror=0, SNR=0dB, BlockErrors=213, (S|L|C|V|SY|)
Signal=32792, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32817, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32771, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32847, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32838, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32797, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=32801, Verror=0, SNR=0dB, BlockErrors=0, (S|L|C|V|SY|)

My reading of the values on the Nova-T 500 is
Signal is 0-65535 (Where 65535 is 100%/perfect)
SNR is 0-65535 ( Where 0 is perfect and 65535 is crap)


Hi Jean-Francois,

From your printout above I see that you have lower strength than I do but aIl other parameters the same.

Do you get any blockiness in your pictures when there is fast motion on the screen? For me this happens for some scenes in just about every broadcast on TV One but not so much on TV3.?



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