[Lowfer] Active Whips and Rubber Sheets

[Les Rayburn]

Many of you are no doubt familiar with the "rubber sheet" theory that states to
avoid electrostatic fields and obtain maximum performance from any
active whip antenna, you need to place it at the highest possible point in
the area.

In my case, that would be at the top of the 40 foot mast that supports the
"XM" flattop. Currently, the active whip is doing a good job at only
15 feet above ground but I'd love to do better.

So, two questions:

1. In your experience, am I likely to achieve much more performance if I place
the whip on top of the 40 foot mast?

2. My real concern is having to lower and raise the mast for repairs. I had 
thought
about trying to rig another pulley at the top to raise and lowfer the entire
active whip case...but not sure how to really make that stable.

Tips, suggestions?

73,

Les


Les Rayburn, director
High Noon Film & Interactive
100 Centerview Drive
Suite 111
Birmingham, AL 35216
(205) 824-8930
(205) 824-8960 FAX
(205) 253-4867 CELL
http://www.highnoonfilm.com