[TowerTalk] TowerTalk Digest, Vol 87, Issue 76

W5KI w5ki at aol.com
Thu Mar 25 07:07:20 PDT 2010


Dan,

I concur with the other posters here, full-size elements, with some  
bends would be preferrable, in my opinion too.  The variation of  
extending the two dipoles out as close to 90 deg perpendicular to each  
other is a good idea also, if space permitted.  But the main point is  
that with the lot having 90 feet to use horizonally, before the 80m  
ends would hang down, would make an effective antenna.

And without going into any antenna efficiency issues, the fact that  
using no coils/traps is: (1) less visible, more attractive and (2)  
less failure points in the future, both mechanically and from weather,  
ice, etc.  are two good reasons to use full-size wire elements if at  
all possible.  Good Luck.

Steve, W5KI




> ---------------------------
>
> Message: 5
> Date: Wed, 24 Mar 2010 19:43:56 -0700
> From: Dan <n5ar at air-pipe.com>
> Subject: [TowerTalk] 40/80m dipole
> To: TowerTalk at contesting.com
> Message-ID: <4BAACDEC.3080804 at air-pipe.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I would like to build and send to my son a coil loaded dipole for
> 80/40m. He has about 90 feet space to hang it in. Has anyone  
> information
> on loading coil values and placement in the 90 ft dipole?
>
> Tnx, Dan, N5AR
>
>



More information about the TowerTalk mailing list