Roy Lewallen wrote:
That's the problem. The more times I read what you've posted, the more
confused I've gotten.
Use EZNEC to display the current distribution for a 102 ft center-fed
dipole on 20m. Assume the origin is the feedpoint. Turn the current
phase on. You have 270 degrees of a cosine wave for the current to the
right of the feedpoint. You have a current maximum at zero degrees and
180 degrees. The current magnitude decreases to zero in the first 90
degrees. The current magnitude increases to a maximum negative value
in the second 90 degrees. The current magnitude decreases to zero in
the third 90 degrees. Where one locates a loading coil and how many
degrees it replaces will determine the magnitude and phase of the
current into the coil and the current out of the coil. There are
three possibilities.
You have a unique talent for turning an honest effort at being truthful
and accurate into an insult, as you did with Ian.
Roy, honest efforts are not always valid and the truth sometimes hurts.
This is precisely why I've given you the opportunity to choose the
inductor for the 10 MHz test. You choose it so that it will best
illustrate what you say is true. Shucks, I even encourage you to do the
experiments yourself.
I have some 1.5" diameter, 6 tpi stock. Get a one foot stinger and use
enough of that kind of stock to resonate on 10 MHz. I guarantee the
current will be different into and out of the coil.
--
73, Cecil
http://www.qsl.net/w5dxp
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