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Re: [TowerTalk] Update: 80 Meter Vertical Loop

To: K0PYK <k0pyk@yahoo.com>, Tower Talk <towertalk@contesting.com>
Subject: Re: [TowerTalk] Update: 80 Meter Vertical Loop
From: "Chris BONDE" <ve7hcb@rac.ca>
Date: Sun, 28 Nov 2004 16:34:03 -0800
List-post: <mailto:towertalk@contesting.com>
When you are thinking of painting (?) a wire for an antenna, think of the main 
background.  I have a dipole with a black wire one side and a red wire the 
other 
side.  It depends where I stand whether I can "see" the wire or not.

I would think that if you paint the wire with various dull non-shining paint, 
it would be 
a little less visible.

Chris opr VE7HCB

> Tower Talk'ers,
> Happy Thanksgiving to everyone!!! I wanted to update
> everyone on my loop progress. When I got home that
> weekend of discussion. The loop was laying on the
> ground. So I coiled it up till I had time to deal with
> putting it back up. Also, I was getting a permit from
> the city for a tower. Another story...no problem
> getting the permit...just took time agreeing on
> location. I decided to recut the loop to 1005/3.55 MHz
> less 3% correction for insulated wire>>>which is 275
> feet. I reconfigured it for a rectangle loop to be fed
> at the bottom of the loop which turned out to be
> behind a tree. I am trying to keep it stealthy. OK, I
> realize 275 feet of wire is not going to be stealthy.
> I am using 12 ga, uf, white in color, irrigation wire.
> I painted it with grey primer to cut down the
> reflection in the sunlight. Next time I will get a
> roll of grey colored wire. I hauled it back up into
> the trees and hooked a 4:1 balun at the feedpoint with
> rg8 coax. In preliminary testing it is 1.2:1 on design
> frequency and rizes to 3:1 at 3.9 MHz. So, seems to
> behave correctly now. Loading it on 7.1 and 14.2
> yields similiar results. I can use it on 14.070 MHz
> psk w/o the tuner. The nice thing so far has been that
> the S meter reading on the 80 meter loop are 1-2 s
> units better than the 40 meter vertical loop. The 40
> meter vertical loop is not as high. I will be re-doing
> that as time permits. 
> As a side note, I dug the hole Tuesday afternoon for
> the tower and poured the concrete on Wed afternoon.
> Snowed on Thursday and Friday. I have an 8 foot tower
> now. Will have to pick the nice days and finish
> putting it up. 
> Tom, K0PYK
> 
> 
> 
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> 
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> 
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_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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