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.
----- Original Message -----
To: "Paul Sturpe" <firstname.lastname@example.org>
Sent: Saturday, December 01, 2007 10:12 AM
Subject: Re: [TowerTalk] 40 Meter Vertical
> 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.
> Quoting Paul Sturpe <email@example.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
>> am not sure what sizes are needed in order to be self supporting (no
>> It has been suggested that I simply use half of an element from the 40
>> yagi as described in the ARRL antenna book. This in fact would work, but
>> 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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