Here is the REAL answer:
See "Does the Ratio of Vertical Wire to Horizontal Wire Make a
Difference in Performance?" in the document,
"Straightening Out the Inverted-L" at
http://www.cebik.com/fdim/fdim10.pdf
wa3afs@inav.net wrote:
> From My experience with 3 different sets of 160M coaxial
> inverted Ls, I found that in general the higher the
> vertical component, the better the antenna will perform
> for dx.
>
> My first and 3rd sets (I used a pair phased most of the
> time) with the vertical component approximately 70 to 80
> feet performed superbly.
>
> The second set (a single antenna) going up only 40 to 50
> feet performed, but definitely not as well as one at 80
> feet. But I still make contacts up to 3500 miles!
>
> Whatever you have for skyhooks (I used trees) go for it
> and remember to have as many radials as practical and do
> not worry if you have to bend the radials to go around
> property lines or buildings.
>
> --73 Bruce, WA3AFS
>
>
>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Sun, 22 Jul 2007 08:41:15 -0700 (PDT)
>> From: "R. David Eagle" <kb8nnu@yahoo.com>
>> Subject: [TowerTalk] 160 M Inverted L Questions....???
>> To: Tower Talk List <towertalk@contesting.com>
>> Message-ID: <27581.34121.qm@web51702.mail.re2.yahoo.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Howdy all...
>>
>> I am interested in putting up an Inverted L for 160
>> and not sure which version would be best. I see in the
>> antenna handbook they have one with the radials that uses
>> a simple impedance match with a single cap and some that
>> have elevated radials (elevated? oh no!). To maintain my
>> young age and stress level, I will stay away from the
>> elevated radials debate. Hi Hi! BUT...what I would
>> really like to know is how critical the vertical
>> component is in this antenna....?? Is there a huge
>> difference in efficiency between 40 and 60 feet?
>>
>> Thanks,
>>
>> Dave
>> KB8NNU
>>
>>
>>
>>
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>
--
Larry N8KU
l o n g w i r e . c o m
HF - DX - CW - Digital
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