Alan Peake wrote in
:

Before I go to the trouble of putting up a rhombic, I've been using NEC
to get an idea of the gain, radiation angle etc for various leg lengths.
It all looks very promising on the computer but I'd be interested in
real-world experiences. For example, how well does the real antenna
approach the PC simulation when various factors like wire sag, uneven
ground, presence of trees and shrubbery?

I only ever had the use of one REAL rhombic. And that was on 60m in the
high arctic (gov't freqs). It was properly designed for the specific path
we were using and yes, it was VERY good. You could almost make your own
band opening with 5kw!

Properly designed, they have a good reputation for doing what the theory
says they will do. Just remember, though, that you're going to have to
sewer almost half your transmitted power into the terminating resistor.
But that's the half that would be going the wrong way, basically.


--
Dave Oldridge+
ICQ 1800667