[opendtv] Re: Olympics picture quality
- From: "John Shutt" <shuttj@xxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 24 Aug 2004 08:37:43 -0400
Terry,
We have had to reboot our DTV exciters on many occasions (once per week on
average) to clear up errors they induce into the 8-VSB signal that makes
some early generation receivers fail to decode the bitstream. I can see how
a corrupted exciter could cause a receiver to freeze on the last good frame
of video, so the actual freeze per se came from the receiver, but the cause
was the transmitter exciter.
Cheers,
John Shutt
----- Original Message -----
From: <tjharvey@xxxxxxx>
> >.... with advice to wake the guy up if we saw something
> >like that, so he could reboot the encoder.
>
> Normally the MPEG-2 encoder and mux is at the studio. At the transmitter,
the transport stream is fed to an 8-VSB exciter. There is no way a frozen
picture could stem from a problem at the transmitter, as far as I am aware
of...
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