[mythtv-users] Strong signal, ugly artifacts...

Andrea Giuliano sarkiaponius at alice.it
Thu Jun 4 21:53:27 UTC 2009

Dear Robert,

thanks for your kind answer. Can you please give me reference values for 
SNR and Bit Error? I got 4.8 dB and 2000-3000 for them, depending on the 
channels. Actually, SNR seems to be constant, I mean it's alway 4.8 dB, 
while BE changes instead.

Also, my dish works perfectly fine with my stand alone decoder (I have 
two cables from one dish), so I guess it's not its fault.

Best regards.

Robert McNamara wrote:
> On Thu, Jun 4, 2009 at 1:51 PM, Andrea Giuliano <sarkiaponius at alice.it 
> <mailto:sarkiaponius at alice.it>> wrote:
>     I'm seeing horrible artifacts in my DVB-S recordings, even though
>     MythTV says the signal strength is 99%
> Signal strength isn't what you think it is.  Signal strength is the 
> strength of the electrical signal between the card and the LNB, *not* an 
> indication of quality of the signal.  More helpful for this is SNR 
> (Signal to Noise Ratio) and Bit Error.  Low SNR or high bit error means 
> bad quality signal.  Repoint the dish.
> Robert
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