[TowerTalk] 160M inverted L

[Larry DiGioia N8KU]

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 at 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 at yahoo.com>
>> Subject: [TowerTalk] 160 M Inverted L Questions....???
>> To: Tower Talk List <towertalk at contesting.com>
>> Message-ID: <27581.34121.qm at 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

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