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Old April 5th 09, 07:13 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Antenna Current Measurement

Tom Horne wrote:
If you have the patience please bare with me as I'm hoping to learn
I was trying to figure out what use if any could be
made of a current measuring device located at the antenna feed point.


There's an article in the Feb 2009 "QST" titled
"Keeping Current with Antenna Performance", by
Eric, KL7AJ, that will answer a lot of your
questions about the benefits from measuring the
RF current.

Here's a tidbit for you. Put a Bird wattmeter
at the antenna feedpoint and set it to indicate
reflected power (power rejected by the antenna).

The maximum radiated power from the antenna will
occur when the power rejected by the antenna is
at a maximum - assuming the feedline/antenna
configuration doesn't change. Present that fact
of physics to your license preparation classes
and see what happens. :-)
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com