[TowerTalk] 40 meter vertical ant

Peter Forbes prforbes at bigpond.net.au
Mon Feb 12 01:47:11 EST 2007

Hi All,

Why not rephrase the question slightly and take away the issue of mast 
support height?

You have a 66 foot tree (or wooden mast) from which you can properly hang a 
vertical dipole.

Alternatively you can have a 33 foot high vertical monopole with 66 radials 

Alternatively you have a 33 foot high vertical monopole WITH ITS BASE AT 33 
feet high with a significant number of quarter wave radials almost 
horizontal to the ground.

In which order would you expect performance to be?

Will the ground conductivity, both near field and far field now be the 
significant factor?


Peter   VK3QI

----- Original Message ----- 
From: "Tom Osborne" <w7why at verizon.net>
To: "Towertalk" <towertalk at contesting.com>
Sent: Monday, February 12, 2007 2:41 PM
Subject: [TowerTalk] 40 meter vertical ant

> Hi all
> I have a 40 meter vertical with a bunch (50 or 60) radials.  I also have
> been thinking of putting up a 40 meter vertical dipole.  Is there any
> advantage to either or antenna.  Which works best for long haul contacts?
> Thanks and 73
> Tom
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