[opendtv] Re: Question about analog transmissions from stations also transmitting 8VSB...
- From: Ron Economos <w6rz@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 15 Jan 2009 04:08:28 -0800
This block diagram of a digital video encoder (scroll down a little)
would suggest B-Y/R-Y (aka YUV):
http://www.analog.com/library/analogDialogue/archives/30-4/Digital_Video.html
Ron
Cliff Benham wrote:
I'm assuming that all network programming is digital these days and
that the analog versions stations transmit are from an NTSC output of
an MPEG-2 demod. There may other ways ??? that are used to develop the
analog signal too.
The question is:
Is the NTSC signal from an MPEG-2 decoder [or other ??? source]
developed in the I and Q format or R-Y and B-Y?
Further, is I and Q encoding still an FCC requirement, or has the rule
been relaxed so that R-Y and B-Y encoding can be used?
Thanks.
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