[mythtv] [PATCH] Experimental full DVB-T scan
Rudy Zijlstra
mythtv at edsons.demon.nl
Mon Apr 11 06:08:45 UTC 2005
Nigel Pearson wrote:
>
> After scanning with this, every transponder is recorded
> with the wrong frequency (e.g. 177666000 instead of 177500000,
> 191666000 instead of 191625000). I have no idea how this can be,
> but channel data is populated, and the backend seems to work OK
> with it.
>
This is because many modern tuners will compensate with AGC an offset
like this. If you point them 125000 Hz wrong they will auto-correct to
the correct frequency.
Cheers,
Rudy
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