"Cecil Moore"
A self-resonant coil is obviously 90 degrees long.
_____________

A coil is not the electrical equivalent of a linear, physical, ~90-degree,
self-resonant radiator. How well do you expect your self-resonant coil to
radiate?

When you add a stinger to a coil, it is the stinger that radiates the great
majority of the applied power. The coil just makes it possible/practical
for the tx to supply r-f power to that antenna system that the stinger CAN
radiate, by improving the Z match between the source and the feedpoint.

RF