[BC] "VSWR" Metering

[Larry Albert]

Cowboy,

   The H sync pulse of video has good rise and fall times.  Not perfect but 
usually fast enough.

   Rep rate of 15,750 (well almost) makes for good stable scope image.

   I have used many times.  Of course I worked in TV.

   A source for video black was easier for me to find than a square wave 
generator.

   We pulled lenses and capped a couple of obsolete field cameras
   and used them for portable black/color bar sources.  Low budget solution.

Albert








At 03:34 PM 10/18/05 -0400, you wrote:
>On Monday 17 October 2005 02:05 pm, Richard Fry wrote:
>
> >As with all things, training, experience and good judgment are needed -- no
> >matter how good or mediocre the test equipment in use.   A veteran r-f guy
> >can make a TDR out of a simple scope, and a short video pulse through a BNC
> >tee that will work just fine to locate the distance down the transmission
> >line to almost any fault worth worrying about.   It's the result that
> >counts.
>
>  Video pulse ?
>  Man, you are sometimes WAY too hi-tech for me.
>  I've always used a square wave generator with the 'scope.
>  ( and a D battery, in a pinch )
>
>--
>Cowboy
>
>http://cowboys.homeip.net
>
>Real programmers disdain structured programming.  Structured
>programming is for compulsive neurotics who were prematurely toilet-
>trained.  They wear neckties and carefully line up pencils on otherwise
>clear desks.
>
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