Gene Fuller wrote:
The question is what happens to the 75 degrees that was formerly
represented by the now-replaced wire. The coil may offer about 10 degrees.

I believe that Tom is stating that 75 is not equal to 10. Sounds like a
reasonable statement to me.

No argument from me. Obviously you didn't understand my previous
explanation that a resonant mobile antenna doesn't have to be 90
degrees long - something I explained weeks ago. Therefore, the coil
doesn't have to be 75 degrees. Please re-read my postings again below
until you understand what I said.

Think of all the possibilities that make (Vfor+Vref)/(Ifor+Iref)
purely resistive without any one of those terms being in phase with
any other of those terms. Then you will realize why that mobile
antenna is probably not 90 degrees long at all.

In my earlier posting, I gave values of phase that make the feedpoint
purely resistive without any one of those terms being in phase with
any other one of those terms.

BOTTOM LINE: Until you can prove that a mobile antenna is 90
degrees long, your argument is just another straw man. What is it
about my following previous statements that you don't understand?

W5DXP wrote:
You are confused. Some time ago, I explained why a mobile antenna
may not be 90 degrees long at all. Did you understand that posting?
All we can say is that (Vfor+Vref)/(Ifor+Iref) is purely resistive.
We don't know how many degrees the reflected wave has traveled in
its round trip because there are too many variables.

So please stop the diversions. I have always said that the delay
through a coil *IS WHAT IT IS* but it is NOT zero and it is not the
3 nS measured by W8JI for that 100 uH coil. It is also not the near-zero
phase shift measured by W7EL using standing wave current phase as the
reference. You, yourself, implied that is an invalid measurement when
you told us there is no phase information in standing wave phase.

Seems to me you are making my argument for me and that your real
argument is with the other side. Have you told W7EL that standing
wave current phase cannot be used to measure the delay through a
coil?
--
73, Cecil http://www.qsl.net/w5dxp