Thanks for the link-duly bookmarked. Here is an excellent link for general
loop info in case you haven't run across it:
The general discussion of loop antennas at the link above makes no mention
of a vertical loop's working only on one or two bands.
And here is an interesting quote from his article:
"It should be noted that horizontal loops can only transmit in the
horizontal plane. And that vertical loops can be fed in such a way as to
either effect horizontal polarization or vertical polarization depending on
how (i.e., where) they are fed. If a vertically oriented antenna is fed at
either the bottom or the top, the polarization will be horizontal; if fed on
the side or bottom corner, it will be vertical. If you are going to the
trouble of putting up a large vertical loop, be sure to feed it to take
advantage of the low angle of radiation mentioned above!"
He is recommending feeding it at the side or corner for vertical
polarization-- "to take advantage of the low angle of radiation mentioned
Another aspect of the vertical loop as mentioned in an earlier post by
"Large vertical loops that are 1 wavelength in circumference have a low
angle take off and do well for DX only on the fundamental frequency. A 270'
vert. loop would do fine on 80m but on harmonics the angle would increase
which is normally the opposite of what you would want."
So, my question is, does feeding a vertical loop at the top or bottom for
horizontal polarization make for the desirable lower take off angles on the
higher bands as with a horizontal loop? I'm going to all this trouble
because my antenna site is ideal for a very large vertical loop, and is a
lousy site for a horizontal one.
I would ask KA1FSB directly if I had an email for him. Anybody know it, or
how to find it? I tried QRZ.
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