Ian White GM3SEK wrote:
That is also the sensible way to think about loaded antennas. Calculate
it the simple way first, assuming lumped inductive loading, and then
apply corrections as necessary. As I've said before, this simple, solid
method is the one that works. It can take you straight to a workable
prototype, which can be quickly adjusted to frequency. Countless authors
have demonstrated how to do this, and anyone can download G4FGQ's
MIDLOAD program to do the same.

The point is that IT OBVIOUSLY DOESN'T WORK, Ian, for
the delay through a loading coil. If it worked, W8JI
would not have gotten a 3 ns delay through a 2" dia,
100 TPI, 10" long loading coil. If his test setup
looked like mine, he would have measured a valid
delay around 25 ns.

http://www.w5dxp.com/coiltest.gif

Ian, are you afraid to run that test for yourself?

Cecil
insists that simple routine reality tests are a "diversion".

Please don't twist my words. I insist that simple routine
*UNreality* tests are a diversion. But, my personal opinion
doesn't change anything. The model that I am using works. The
model that W8JI is using doesn't work.

Please take a look at: http://www.w5dxp.com/coil512.ez
and tell me why EZNEC disagrees with W8JI's model.
--
73, Cecil http://www.w5dxp.com