Topband: Anttea Options for Upcoming Season

[mikefurrey at att.net]

Hi Ed,

Nice thing to have access to. My thoughts would be for a delta loop ... easy 
to build, tune, match, but with a tower that tall, I think I would entertain 
building a bi-square. The wires from the wire antenna would have to be 
wiggled around the tower guys though.

73, Mike WA5POK

-----Original Message----- 
From: Ed Richardson
Sent: Thursday, July 14, 2011 12:46 PM
To: topband at contesting.com
Subject: Topband: Anttea Options for Upcoming Season

Hello Topband Fans:

I have been given an opportunity to install a simple wire antenna for 160m 
from a commercial tower here in VE4 land. The tower is 450 feet (aprox 140m) 
and is guyed at 5 levels I was contemplating my options and thought I would 
solicit advice from the most knowledgeable topbanders around.

My first choice was to install a simple vertical half wave dipole offset 
from the side of the tower by up to 2m. The center of the antenna  would be 
approximately 90m (300') above the ground.

I will try modeling this but was wondering if I should effect of the tower 
and guys would make this problematic to tune? As the tower is approaching 1 
wavelength, should I expect to have to detune the tower?

I can not add my own anchor points for slopers and would need to use what is 
there. Ground mounted radials are not an option.

Any other ideas, suggestions are potential gotch'yas?

Love to put VE4 on topband from other than a postage stamp sized City lot.

73 Ed  VE4EAR



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UR RST IS ... ... ..9 QSB QSB - hw? BK