[mythtvnz] Trying to troubleshoot DVB-T artifacts

[Steven Ellis]

On 25/04/2009, at 10:09 PM, Steve V wrote:

> Hi,
>
> I am having mixed results with DVB-T often with motion I get bad  
> artifacts. I am using VDPAU for playback.
>
> It seems to be worse with TV1 than TV3 which is a surprise give teh  
> higher resolution of TV3, but on the other hand it seems that TV3 is  
> on stronger transport than TV1.
>
> I suspect my reception may be the cause of the problem but I am  
> having trouble getting any good information on BER and SNR for the  
> NOVA-T 500 card.
>
> I run dvbtune -f 690000 -I 0 -qam 64 -gi 16 -cr 3_4 -bw 8 -tm 8
>


Hi Steve

This is what I run for a test

dvbtune -c 0 666000000 -m

Signal=56797, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=56797, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=56797, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=56797, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=56797, Verror=0, SNR=65535dB, BlockErrors=0, ()

What build of dvbtune do you have?

dvbtune --version
dvbtune 0.5


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

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