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Re: [TowerTalk] 40 Meter Vertical

To: <n8de@thepoint.net>, "Paul Sturpe" <sturpe@embarqmail.com>
Subject: Re: [TowerTalk] 40 Meter Vertical
From: "WA3GIN" <wa3gin@comcast.net>
Date: Sat, 1 Dec 2007 10:47:16 -0500
List-post: <mailto:towertalk@contesting.com>
Paul,

I forgot to mention that the 3" irrigation tubing fits perfectly inside 3" 
schedule 40 PVC in case you want to use the PVC to insulate the aluminum 
from a steell post, etc.

73,
dave
wa3gin
----- Original Message ----- 
From: <n8de@thepoint.net>
To: "Paul Sturpe" <sturpe@embarqmail.com>
Cc: <towertalk@contesting.com>
Sent: Saturday, December 01, 2007 10:12 AM
Subject: Re: [TowerTalk] 40 Meter Vertical


> Paul,
> Many years ago, Dentron sold a 40m vertical just as you describe.
> I have 5 of them .. three are in place, and the other two are under 8"
> of snow.
> We have up to 18" more forcast for today and tomorrow, so will have to
> wait until it all melts or blows away to dig out the other two and
> measure the diameters/lengths.
> When I can, you'll get the info.
> Don
> N8DE
>
> Quoting Paul Sturpe <sturpe@embarqmail.com>:
>
>> I am looking for a design for a full size 40 meter, 1/4 wave, self
>> supporting vertical.
>>
>> I am thinking that telescoping aluminum tubing is the best way to go, but 
>> I
>> am not sure what sizes are needed in order to be self supporting (no 
>> guys.)
>>
>> It has been suggested that I simply use half of an element from the 40 
>> meter
>> yagi as described in the ARRL antenna book.  This in fact would work, but 
>> is
>> probably design over kill for a vertical.
>>
>> Does anyone know of plans for a design that meets my criteria?
>>
>> Paul, W3GQ
>>
>>
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