[Elecraft] My Experiences with EH antennas on 20 meters

[Thomas Kuehl]

Hello Charles,

The E/H antenna has been a subject of controversy within the antenna
community. Although antennas are my primary interest in amateur radio and
I've published a few articles on them, I am not qualified to pass judgement
regarding the E/H antenna's operation or performance. With that said, there
are some learned and experienced hams whom have a good deal more experience
and antenna knowledge than myself. The following links may prove helpful to
anyone contemplating acquiring or building their own E/H antenna. Generally,
it appears that the analysis of the E/H antenna, and the practical
experiences with it, indicate that its gain is down somewhere around 10 to
20 dB from common reference antennas. Please see the following articles at:

http://www.w8ji.com/e-h_antenna.htm

http://www.qsl.net/iz7ath/web/02_brew/18_eh/index.htm

I am truly surprised that you have achieved such high levels of performance
with your E/H antenna.

Best Regards, Thomas - AC7A (Tucson)

----- Original Message -----
From: "Charles Greene" <W1CG@QSL.net>
To: <elecraft@mailman.qth.net>
Sent: Sunday, February 23, 2003 7:52 PM
Subject: [Elecraft] My Experiences with EH antennas on 20 meters


> Ron and All,
>
> The EH antenna really works, well.  It's efficiency, as an antenna, is on
> the order of 95%, as compared to about 75% for the full size 20 meter
> vertical with elevated radials I build last summer, and few percent for a
> short fat dipole the same size but just loaded with a loading coil because
> of the high losses in the loading coil.  On 20 meters, its beam width is
on
> the order of a few degrees, concentrated near the horizontal.  As it needs
> no ground, its ground losses are very low. It doesn't need a return ground
> path that includes the lossy earth ground.  >
> Others have had the same or better results.
>

> GL on yours.  You can even buy an excellent kit at www.eh-antennas.com
>
>
> 73, Chas, W1CG
> K2 #462
>