[Antennas] Inverted "L"

Sat, 22 Nov 2003 19:22:01 -0800

Jim,

Try changing the ratio of verical to horizontal,  From what I've been
told the horizontal portion acts as a capactance  hat for the vertical
portion. If you are seeing directivity then I would suspect that the
horizontal portion of the antenna is doing most of the work. And you
have some sort of lop-sided dipole

I have a inverted L type anenna that works quite well, it is about 30'
up by 40' horizontal. but the horizontal portion is lower at the
outboard end by about 10 feet. That is also suposed to do some sort of
vodoo to the antenna, no math or fancy formulas just dumb luck here.

The best part of this type of antenna is they are so easy to "play"
with. Keep changing things untill it stops getting better! But
remember to stop when it gets worse.

73
John
----- Original Message ----- 
From: "Jim Isbell" <[email protected]>
To: "Mail list Antennas" <[email protected]>
Sent: Saturday, November 22, 2003 3:12 PM
Subject: [Antennas] Inverted "L"

> I have just put up an inverted "L" with a 26' vertical section and a
70'
> horizontal section.  It really works well, much better than my 40
meter
> dipole it replaced.  BUT it seems to be very directional off the
sides
> of the horizontal section so I am considering adding a second
inverted
> "L" oriented at 90 degrees to this one and a switch to switch a
relay at
> the base of the antennas to switch between the two.  Since the
vertical
> section of both antennas will be only about 8" apart, will I have
any
> problems with the "dead" antenna affecting the pattern of the "live"
one?
>
> - - -
>
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