Cecil,

Your own calculations would appear to support Tom's assertion.

I believe after a long series of EZNEC models and RRAA messages you came
to the conclusion that the 75 meter bugcatcher coil at 4 MHz had a
traveling wave phase shift of around 10 degrees. I won't get into the
discussion about whether this has any bearing on a standing wave
antenna; let's just assume it does.

This same coil resonated an antenna with a whip length of 10 feet or so.
A quarter wavelength at 4 MHz is around 60 feet. The phase shift that
could be attributed to the whip is therefore around 15 degrees. The
phase shift of the missing 50 feet of wire for a plain quarter wave
antenna would be around 75 degrees.

Is 10 degrees the same amount as 75 degrees? Is this problem stated
incorrectly? Why is Tom wrong?

73,
W4SZ

Cecil Moore wrote:
wrote:

I know you aren't going to like to hear this, but your article
incorrectly claims the current difference (you call it current drop) is
related to the electrical degrees the coil replaces.
That is not accurate.


The current drop in a wire with standing waves is indeed related
to the number of degrees occupied by the wire. Why shouldn't the
same thing be true for a coil?