I should add that the antenna you described will be less efficient than
a plain wire of the same height. The use of the coil in place of a
straight piece of wi

1. Makes no substantial difference to the pattern shape.
2. Decreases the efficiency.
3. Potentially makes matching more difficult.
4. Unnecessarily increases cost and mechanical complexity.

But it might look groovy and impress the good buddies. And it might
*seem* to work better -- the placebo effect is genuine and quite
powerful and it's been the reason for a lot of satisfied customers.

Roy Lewallen, W7EL