On Apr 17, 7:06*am, WA2SI wrote:

Yes, the goal is a single band, quiet and
physically unobtrusive single-band omni-directional. (Or at least
somewhat omni-directional without being a cloudburner.) Visualize, if
you will, two wire Christmas tree shaped wire loops, 90 degrees from
one another, fed at the center of their bottom legs up abt 30'.

If I'm understanding this, what you are proposing would actually be
horizontally polarized, not vertical.
I imagine the triangle shape distorts things, but in general if you
feed a loop at either the top or the bottom, it will be horizontal.
You want to feed from one of the sides for it to be vertical.
Which calls for a square for most people..
Actually, what you want to build is very common. Most refer
to them as an "eggbeater". The usual method of feeding the
elements is 90 degrees out of phase if I remember right.
That gives the most omnidirectional pattern.


Some might say, "why not just mount a vertical?" Well, I have the 2:1
balun and I figured that the loop would be much quieter.

As Richard mentioned, this is fiction. All antennas receive noise.
How much you receive depends on the polarity of the antenna, the
noise source, and the efficiency of the system. It's quite possible
for
the horizontal antenna to receive the most noise if the noise is
radiated from a horizontal source. It's possible for an antenna to be
very "quiet" if it's very inefficient. Actually, if I notice an
antenna that is
too "quiet" I start to wonder what the heck is wrong with it.. :/
Noisy is good. Maybe not the noise itself, but that you receive it
well is good. You don't want it any other way, unless maybe you
are a proponent of the Unwintennas which tend to be air cooled
dummy loads..

A good elevated vertical is actually a very good 10m antenna.
It's good for DX, but it's also good for space wave coverage to
locals.