[Antennaware] Q on 3/8 WL Verticals

[atrampler at att.net]

Hi

I'm new to the list and run an AV640 with its base about 18' above the ground.

Has anybody modeled this or a similar 3/8 WL loaded vertical, like the R8, regarding efficiency, radiation pattern, etc?  I am curious if there is any benefit to be had from inscreasing the number of counterpoises or (given the height) lengthening them.

I know to many of you this is probably not a "real" antenna...but it fits my yard and its obstacles.

73,
Art, KØRO