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Old January 7th 08, 12:54 AM posted to rec.radio.amateur.antenna
Dave Dave is offline
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First recorded activity by RadioBanter: Jul 2006
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Default Standing morphing to travelling waves. was r.r.a.a Laugh Riot!!!


"AI4QJ" wrote in message
...

"Richard Clark" wrote in message
...
On Fri, 04 Jan 2008 20:03:04 GMT, Cecil Moore
wrote:

The SWR on the wire is load-
based and is equal to

8:1 as evidenced by CURRENT on the wire. :-)

You cannot make a SWR measurement on a receive antenna any other way.


You are making a "Voltage" standing wave measurement based ion the CURRENT
of the wire?

AI4QJ

sure, VSWR is just as valid as Current-SWR, they are absolutely identical...
the only difference is that VSWR is the amateur 'standard' because it was
frequently easier to measure the voltage than the current... i.e. on open
wire feeders all you had to do was run a neon bulb or other cheap voltmeter
along the line to find the min and max voltage points... for a current
measurement you would have to couple a loop around the line or insert
shunts, not nearly as simple as measuring a voltage... so vswr was the
'standard'... though just plain swr, refering to either one, is just as
proper.