You miss my motives!
I have a Cushcraft A4 beam that works very well with my Ten Tec
Pegasus transceiver (inboard LDG tuner). In my eyes it is the perfect
rig!

I am not breaking any new ground. I am simply doing the lab exercise
of validating the EZNEC calculations. I may find it worthwhile to drop
to an 8-foot radiator and higher (10-Meters?) for ease of
construction. The principal area of interest is in radiators less than
1/4 wave in length.

At the moment, I am especially interested in the different feed
arrangements. I am starting with the "Gotham" style of a single base
loading coil and minimal radials then I plan on an autotransformer
arrangement. I have a fair amount of room, a lot of scrap metal and
wire is cheap! The principal limitations are time and my level of
intellect...

Staying on track will be a problem, moving the load up the radiator is
already looking appealing!


On Thu, 12 Jan 2006 15:14:32 GMT, Cecil Moore wrote:

John Ferrell wrote:
My current project is "What can I do with a 20 foot radiator?" Working
out the details (the devil is indeed in the details!) sure is a lot
easier with EZNEC than it is with physical modeling.

Assuming a 20 ft. vertical with 20 ft. radials, how about
feeding it with an autotuner, like the SGC-230, and using
it for 40m-10m? It will also work at reduced power output
on 75m.
John Ferrell W8CCW