Gene Fuller wrote:
I gave you a very specific reference to demonstrate your supposition was
incorrect. You came back with nothing but, "Because I say so." You have
not offered one shred of backing for your constant Vf argument.

Where the heck have you been? The equation for VF is equation (32)

at: http://www.ttr.com/TELSIKS2001-MASTER-1.pdf

Just before that equation for VF is a geometry test for the
coil in question. A 75m bugcatcher coil passes that test.

The velocity factor equation contains helix diameter, turns
per unit length, and wavelength. If we keep those three
quantities constant, the VF of a coil should remain constant
while varying the length of the coil.

The problem encountered previously was we kept the coil length
constant while varying the frequency. That does change the VF.
But this time we are keeping frequency constant.
--
73, Cecil http://www.qsl.net/w5dxp