John Popelish wrote:
Dang! I was looking forward to your test results, and a description of
your test method. I think your 2" diameter coil is a good example of an
inductor that is neither a perfect "lump" nor a pure transmission line.

That's what my back of the napkin calculations would indicate.
I get ~14 degrees at 1.9 MHz or ~28 degrees at 3.8 MHz based
on 90 degrees at 12 MHz.

But based on what these guys measured before, anyone would be
a fool to predict the results without knowing what the test
setup looks like. In fact, the prediction challenge was a
blatently obvious attempt to lead the unsuspecting down
a primrose path without a roadmap. Do you think W7EL would
ever make a prediction based on the meager amount of
information provided? :-) A few years ago he provided some
information but kept changing parameters daily until I got
tired and withdrew my estimate. But it turned out in the
end that I was pretty close.
--
73, Cecil http://www.qsl.net/w5dxp