[Elecraft] Good Low Horizontal Loops - questions
[email protected]
[email protected]
Thu Aug 8 23:55:00 2002
I wrote:
"If you feed an antenna for use on all bands, those bands it is not
resonant on will have current on the coax feedline shield and the coax
will also radiate -- an undesireable trait. The feedline will not
radiate if you use a balanced feeder."
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The "current" I'm referring to here is the high-amplitude standing waves
on the shield of the coax. Balanced line will also have these big
standing waves (on both sides of the line), but the currents in the two
wires in the feeder are 180-degrees out of phase, effectively cancelling
the feedline radiation.
73, de Earl, K6SE