Sender: |
|
Date: |
Thu, 3 Apr 2008 17:39:39 +1100 |
Reply-To: |
|
Subject: |
|
MIME-Version: |
1.0 |
Content-Transfer-Encoding: |
7bit |
In-Reply-To: |
|
Content-Type: |
text/plain; charset=ISO-8859-1; format=flowed |
From: |
|
Parts/Attachments: |
|
|
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
>
>
> __________ NOD32 2996 (20080403) Information __________
>
> This message was checked by NOD32 antivirus system.
> http://www.eset.com
>
>
>
|
|
|