[TowerTalk] Log-Yagis

Maurizio Panicara i4jmy@iol.it
Thu, 7 Dec 2000 23:34:59 +0100


Computer aided design and the open sleeve method (OWA is a sort of in-band
open sleeve) excellently solved BW problems in monobanders.
In my opinion, concerning multiband antennas the LP concept in driven
element still deserve merit.
As  a contester I prefer the effective and simplest solutions, both
mechanical and electrical.
A log-yagi increases mechanical problems and raises impedance and therefore
voltages, not counting the need of a step up balun instead of a simple and
very reliable coax choke.

73
Mauri I4JMY

----- Original Message -----
From: "Tim Makins, EI8IC" <ei8ic@eircom.net>
To: "TowerTalk" <towertalk@contesting.com>
Sent: Thursday, December 07, 2000 6:45 PM
Subject: [TowerTalk] Log-Yagis


> I'd be interested to expand the LP discussion and hear what people think
> about Yagis with a log-cell in them.  In the books they look useful
animals,
> but I'm puzzled why contesters don't use them, singly or in stacks.  Is
this
> mainly to do with the fact that people prefer to buy ready made equipment
> these days, and there aren't any of these being offered presently ??
>
> Tim Makins, EI8IC
>
> BTW an interesting LP web site is www.titanex.de/logper.html
>
>
>
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