[mythtv-users] SNR reported by kernel dvb for HD-5500 card
Johan
johan.vanderkolk at dommel.be
Fri Apr 4 15:29:31 UTC 2008
On Fri, 2008-04-04 at 10:04 -0400, Tom Dexter wrote:
> I'm using HD-5500 cards for OTA DTV.
>
> Does anyone know if the signal to noise reported by the HD-5500 card
> is out of whack? I think it almost has to be.
>
> If I monitor it with femon from the media-tv/linuxtv-dvb-apps package
> I get what appears to be a correct signal strength (it usually jives
> with my Samsung HD receiver). The snr however is never beyond the 8%
> to 13% range. I can't believe it would even get a lock if that were
> correct:
>
> femon -a 0 -h
> FE: LG Electronics LGDT3303 VSB/QAM Frontend (ATSC)
> status SCVYL | signal 94% | snr 12% | ber 00000000 | unc 00000000 |
> FE_HAS_LOCK
>
> My Samsung receiver only shows strength, not quality...and as I said,
> it jives with the above signal strength. When I had my Sony
> DHG-HDD500 HD DVR I believe the quality usually showed 'good' or
> better.
>
> There's no way that's even close is it?
>
SNR is normally reported in dB, so could it be 12 db in stead of 12% ?
Johan
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