New monitors on old machines

[Patrick Finnegan]

On Thursday 02 November 2006 16:49, Chris M wrote:
> --- Patrick Finnegan <pat at computer-refuge.org> wrote:
> > Peak-to-peak means the difference between the
> > maximum and minimum
> > voltage of the signal.   Something that ranges from
> > + 5V to +10V
> > above "ground" would be "5V" P2P, but a 10V peak
> > signal.
> >
> > In the case of RS-170 video, it's -0.4V - 1.0V, so
> > 1.4V p-p or 1.0V
> > peak.
>
>  Well that's encouraging. I was thinking in terms of
> sine waves and such, which have a peak to peak
> voltage, and in that case, half of the cycle is below
> ground. I was under the impression that measuring such
> a signals "peak" voltage was an rms value, but I guess
> I botched that up too :)
>
<snip>
> >
> > RS-170 is US baseband video without color.  RS-170A
> > is US baseband video
> > with color (NTSC).  (525-line, 3.579545 MHz
> > colorburst frequency, 59.94
> > fields per second, 29.97 frames per second).
>
>  So RS-170 has nothing to do with the amplitude of the
> signals? Or should I ask to specify something as
> RS-170 compatible/compliant.

Sure it does.  Read what you replied to above again...

Or, go to http://google.com type in "RS-170" and hit search...

Pat
-- 
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