[Lowfer] 9k TX loop

Ashlock,William [email protected]
Wed, 2 Jan 2002 15:42:31 -0500


Hi Steve,

Many thanks for the return.

> > I also came up with the idea of crossing the horizontal legs
> > at the midpoint (235ft location), thus putting the currents in the two
> > vertical legs in-phase, instead of opposing each other. Has anyone heard
> > of this configuration?
> >

"Unfortunately this doesn't help. Before the two vertical legs cancelled
each other and the two horizontal legs cancelled each other. By twisting the
horizontal legs you now have the two verticals re-inforcing each other and
the two horizontal legs cancelling each other."

"The problem is now the vertical parts of the twist is anti-phase to the
outside vertical legs."

My original thoughts on this were that the phase of the 'twist' portion
would be a neutral phase (as a 50ft grounded vertical rod would be). Also,
would the currents in the horizontal sections effect the vertical
propagation? Maybe so. I've been ignoring this in my loop model.
  
"Unfortunately this state of affairs exists while the dimension of the loop
is a small fraction of the wavelength and so the direction of the current is
all the same around the loop at any instance."

I'm going to give this a try tonight, anyhow, as a preliminary test. The
incomplete loop already has two horizontal sections with dangling 50ft wires
at their planed connection point that will allow the connection looking like
this: OO . Will keep you posted.

Bill WA 
185.300S
Andover, MA



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