[Antennas] Variation on coaxial dipole antenna

Buck (N4PGW) na4fm-list at towncorp.net
Fri Jan 28 00:50:31 EST 2005


That seems simple enough.  My thoughts are to have the material available to
make a vertical dipole or horizontal dipole as needed.  

I hadn't thought of the balun or unun.  

Thanks again.

Buck
N4PGW

-----Original Message-----
From: antennas-bounces at mailman.qth.net
[mailto:antennas-bounces at mailman.qth.net] On Behalf Of Mel Vance
Sent: Friday, January 28, 2005 12:44 AM
To: antennas at mailman.qth.net
Subject: Re: [Antennas] Variation on coaxial dipole antenna

On 28 Jan 2005 at 0:37, Buck (N4PGW) wrote:

> The coaxial dipole consists of a 1/4 wave element and a tube covering the
> coax for 1/4 wave connected to the shield.  
> 
> I am wondering whether a regular wire dipole would work if the 1/4 wave
> element is run parallel to or next to the coax shield.  
> 
> Thanks for the comments.
> 
> Buck
> N4PGW
> 
Are you talking about a vertical dipole? And replacing the pipe with a wire?

If so, yes, it will work. Both need to have something to de-couple the
coax......1:1 unun, 
coax choke, ect. Failure to de-couple the coax will result in RF on the out
side of the coax.

Mel
N7OKL

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