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Posted by charles on 10/10/06 07:45
In article <egfhm5$1t5$1$8300dec7@news.demon.co.uk>,
Stephen <stephen@junkmail.sptv.demon.co.uk> wrote:
> "Radium" <glucegen1@excite.com> wrote in message
> news:1160431017.628911.56120@b28g2000cwb.googlegroups.com...
> > Hi:
> >
> > What is the color sub carrier frequency in SECAM video?
> >
> > http://www.high-techproductions.com/pal,ntsc.htm
> >
> > The above site shows the color sub carrier frequency for NTSC [3.579545
> > MHz] and PAL [4.433618 MHz].
> There's an excellent and very detailed explanation of the SECAM system
> here:
> http://www.pembers.freeserve.co.uk/World-TV-Standards/Colour-Standards.html#SECAM
> The SECAM colour subcarrier frequency is
> 4.40625 MHz on "Red" lines
> 4.25000 MHz on "Blue" lines
The French are terribly pedantic when it comes to the use of words.
"Sub-Carrier" is only used when there is something being carried, at other
times it's called the "reference frequency".
--
From KT24 - in "Leafy Surrey"
Using a RISC OS computer running v5.11
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