[Lowfer] loop performance

Eric KD5UWL [email protected]
Tue, 27 Jan 2004 20:23:44 -0600 (CST)


Hi, Loopers,

No, I'm not considering a loop -- my QTH is not cut out for it, and I 
presently prefer the omnidirectional properties of a vertical.  But people 
change ...

But I have a friend who'd like to get started and he just bought 20 acres 
that is currently frightfully devoid of antennas.

Before I make any suggestions to him I'd like to learn a little more about 
The Loop.

I have a specific question.  It came to my mind when he mentioned he had 
room for a very long wire.  I haven't told him yet what you guys said 
about horizontal wires not working for LF TX...but while thinking about 
that, this question came to mind:

Have you seen any difference in performance of loops with equal wire 
length but of varying shape?  Specifically, can you tell a difference when 
your loop is "perfectly" round as opposed to being something closer to a 
square, with essentially horizontal runs near top, bottom, and/or sides?

If there is a difference, I'd think it would be most noticible from the 
same loop -- that is, say your loop wasn't very round when you first put 
it up, but ran with it, and then got it rounder over time.

73
Eric