Typically Beverage antennas are designed for receiving not transmitting.
They are usually too low for good transmitting antennas.  On the other
hand they are very nice receiving antennas.  

I have used a coaxial loop with a broadband receiver pre-amp with good
success.  I will need to think about how it is constructed and report
back unless Kevin can do so.   


 

Thank you!
Brett Winchester   KD7JN
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ICBVI -- Reading Services
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BOISE IDAHO  83720-0012
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208-334-2963 fax


 

 


-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]] On Behalf Of Shaun Oliver
Sent: Thursday, April 03, 2008 12:40 AM
To: [log in to unmask]
Subject: Re: stupid question.

I was actually listening to a zl station on 80 one night, I don't quite
know where abouts he was to be able to have this but, he had a long wire
half a kilometer long, and there was little difference in signal when he
switched between the two.

Shaun
web sites:
http://www.myspace.com/blindmanshaunoliver
http://blindman.homelinux.org/~blindman/
skype: brailledude


On 3/04/2008 1:53 AM, the old scribe known as Colin McDonald was able to
impart this pearl of wisdom:
> well, the one reason you can't always load a fence up is that it would

> typically be grounded.
> I have heard of people using metal fences to act as HF antennas, but 
> they had to be totally isolated from the ground.
> Case in point, many farmers who have miles of 3 strand barbed wire 
> fencing on wooden posts will use the top strand as a beverage antenna 
> or low band receiving antenna.
> I think 4 miles of wire would make a pretty good receiving antenna.
> Most chain link fences use metal posts in the ground, and the chain 
> link itself is typically treated with a plastic protective substance, 
> or painted, which can lead to problems with continuity.
> As a ground system though, it would work pretty good under a vertical 
> even with bad continuity between links.  Just having all that metal 
> under a vertical would improve reflections.
> 73
> Colin, V A6BKX
> 
> 
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