Cecil,

They are elevated, based on Reg's program. It predicts that a relatively large,
diameter about equal to length, 2 gage wire, high Q coil feeding a 2 meter
radial about .5 meters elevated produces a resistance of just over 2 Ohms. This
is at 3970 kc.

I have not tried this with another model, I seem to be unable to create coil
descriptors to feed nec.

The fundamental construction questions relate to 'accuracy'. What would the
effect be on Q be of a flat sides? What would the effect be if the wire (I plan
to use 1/4 inch copper tube) had small 'ripples' in the wind.

Thanks - Dan



Cecil Moore wrote:
dansawyeror wrote:

Reg's counterpoise program predicts the effective ground of a
centerloaded vertical on 75 meters can be improved by a tuned
relatively short counterpoise system. This is dependent on a large,
high Q, low loss tuning coil.


Are these elevated radials? How elevated? High-Q coils
in ground-level radials would probably be a waste of
time and effort.