[Antennas] Vertical coaxial endfed dipole...

20 Feb 2002 06:44:32 -0800

Hi Roger,
Thanks for the reply.
My only requirements for the 10m antenna are: 1) Vertical pol. 2) No horizontal radials 3) must fit inside a fishing rod.
The antennas that fit the above requirements are the Vertical centerfed dipole, but feeding it is a problem because the feedline would run paralel to the lower element, the endfed dipole, and maybe a 5/8 which I don't have plans for...

73
Demetre - SV1ENS

On Wed, 20 February 2002, "Roger Willems" wrote:

> 
> I have build one for 80mtrs.
> It worked, but thats it. It was a moderate radiator. Its a strickt
> monobander.
> If end fed is your only option, make one but do not expect great
> results........
> 
> 73
> 
> Roger
> pa1zz
> 
> ----- Original Message -----
> From: "Demetre Koumanakos" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, February 20, 2002 9:13 AM
> Subject: [Antennas] Vertical coaxial endfed dipole...
> 
> 
> 
> Hi all,
> 
> The ARRL handbook describes the construction of an and fed horizontal
> coaxial dipole. This antenna is nothing more than a L4 radiator wire
> soldered on the center conductor of a L4 coax cable. On the feed side of the
> coax several loops of the same coax cable are present to creat a 1:1 balun.
> 
> Anyway to the questions:
> 
> Has anyone had any experience with such an antenna ?
> 
> How would this antenna rate to a center fed dipole ?
> 
> I was thinking of building this antenna for 10m, the antenna would be housed
> inside a fiberglass fishing rod in order to use it as a vertical...
> 
> Any tips ? comments ?
> 
> 73
> 
> Demetre - SV1ENS
> 
> 
> 
> 
> 
> 
> 
> 
> 
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