Richard Fry wrote:
"Cecil Moore"
At the first self-resonant frequency, the feedpoint
impedance is purely resistive indicating that the coil
is indeed electrically 90 degrees long.

But that doesn't make the coil an "antenna," as you described it
for that condition.

We know that helical antennas exist and radiate. The
form factor of a self-resonant 75m bugcatcher coil is
helical and will radiate (even though very inefficiently)
and contacts are more than likely possible. What is your
definition of "antenna"? A self-resonant 75m bugcatcher
coil is not all that different from an Isotron "antenna".
--
73, Cecil http://www.w5dxp.com