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TopBand: 160 meter phased inverted-L's

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Subject: TopBand: 160 meter phased inverted-L's
From: jon.zaimes@dol.net (Jon Zaimes AA1K)
Date: Tue, 17 Dec 1996 02:32:47 -0500 (EST)
Anyone using 1/2 wave spaced broadside Inverted L's on a hillside?
I have the possibility of using a pair with one at bottom of hill, base
elevation about 30-40 feet elevation, and second one at about 80-90 feet
elevation (in other words, one will be about 50 feet higher than the other,
spaced 270 feet away). Will it work?

73/Jon AA1K


At 09:28 AM 12/16/96 -0800, you wrote:
>KenDulK8ZR@aol.com wrote:
>> 
>> I know that there are several hams on here using phased inverted-L's on 160
>> with 1/2 wavelength spacing. I remember reading some time ago that they have
>> the ends of the L's pointed at each other. Is there an advantage to that? Or
>> can the horizontal sections be parallel to each other?
>> 
>> tnx,
>> Ken K8ZR
>>
>
>The computer models indicate that if you are feeding the L's in phase
>(broadside) there is a slight advantage in having the L's point at each
>other. This is theoretically .5db to 1.5db over all the other possible
>permutations. I dont remember which permutation is the worse. This ONLY
>applies in the BROADSIDE case. Other phasings have other optimal wire
>placement.
>
>My 1/2 wave spaced L's point at each other by luck of the available
>organic antenna towers (trees) that I have to work with. My L's are set
>up to switch in 180 degree of phase shift in one leg so I can go endfrie
>as well. 
>For the sake of a few tenths of a db I wouldn't woryy about it a lot.
>Put your time, worry and effort into the ground system.
>
>Dave
>N7EX
>
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