I don't want to discuss if a one or two WL horizontal loop suspended 20/30
ft around an house is or not an efficient antenna, whose I don't think, but
I've also doubts if its really suitable for small lots and really invisible
to neighborhood .
Which kind of 30 ft poles can be invisible and do not move in wind to avoid
a thin wire (invisible) doesn't break ?
Which kind of noises (TV, PC, etc.) can be induced in the loop by all the
domestic appliances when the hose is the core itself of the coil ?
73,
Mauri I4JMY
>
> Hi Tom - thanks for your comments. Disagreements are always welcomed
here -
> its the only way I can learn something.
>
> The 2WL loop sounds interesting, and could be used by some on the
perimeter
> of their lots, though the required height might be a problem. How would
you
> suggest it was fed ? For those who find open line impractical, due to
> house-entry etc., is there a way to feed with coax ?
>
> With regard to wire-type, I would recommend people to be on the lookout
for
> surplus telephone wire, often discarded by linesmen when they are renewing
> cables. The stuff here has 4 cores of copper (for the signal), and 6 cores
> of steel (for strength) - I use it for my 1WL delta loop on 80, with no
> problems.
>
> Tim EI8IC
>
> ----- Original Message -----
> From: <n4kg@juno.com>
> >.......<snip>......
> > A 2WL square loop (1/2 WL on each side), fed on the center of
> > one side, is an interesting antenna. It acts as two pairs of half wave
> > dipoles spaced 1/2 WL and fed out of phase. Each pair of opposite
> > half waves gives a bi-directional figure 8 pattern resulting in a nearly
> > omni-directional horizontally polarized pattern for the square loop.
> > If mounted at 1/2 WL high it is an effective and useful antenna.
> > At 20 or 30 ft on 80 or 40M, it SUCKS compared with a higher
> > dipole or good vertical.
> >
> > Regarding wire size, anything smaller than #18 copper based wire
> > is subject to breaking readily from falling limbs or ice loading.
> >
> > Tom N4KG
>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|