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LF: Loops V Verticals

To: [email protected]
Subject: LF: Loops V Verticals
From: "hamilton mal" <[email protected]>
Date: Wed, 21 Jul 2004 23:36:06 +0100
Reply-to: [email protected]
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Hi All
At least this topic has injected some interest into the LF scene. LF activity around Europe has virtually died, in fact at present it is a dead duck.
 My comparison between loops and verticals is based on an open clear site and qualifies the merit of the antennas and NOT the environment that that you live in.
I do not know anything about a vertical that leans up against a pine tree or a loop hooked over trees and bushes. I think anyone in that environment would be at a big disadvantage engineering a LF antenna system.
When I visited Long Beach California some years ago and met W6AM and his friends they all had acres of land covered in rhombics and naturally I thought all USA amateurs were in a similar situation, it appears that I am wrong and things are tough on the East Coast USA when it comes to space for LF antennas.
I suppose in some cases some sort of antenna, even a loop is better than nothing.
Did I read somewhere a while back that using a small loop the antenna current would be 76 amps for 1W of RF erp output, If this is the case the atu components and wire would MELT, so it would not be practical. Using a modest vertical around 100 feet to get the same output the antenna current would only be several amps.
I was intrigued reading the opinions of those interested in this discussion, and what a response.
73 de Mal/G3KEV
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