[Elecraft] EH Antenna Patent

Wed Feb 26 01:53:01 2003

What is "E-only" or "H-only" radiation?

From the words of the popular song, Maxwell says " You can't have one
without the other!"

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Larry Weaver
Sent: Tuesday, February 25, 2003 7:26 AM
To: [email protected]
Subject: Re: [Elecraft] EH Antenna Patent

At 02:06 AM 2/25/2003, Tony Wells wrote:
>There are two other claims in the patent which I think are very important
to
>test. Firstly on RX the antenna is supposed to be deaf to E-only radiation
>and H-only radiation. Therefore the ant is supposed to have good immunity
to
>man-made electrical interference. Some testers have reported that fact.

Whether the E-only/H-only explanation is correct or not, the receive
enhancement is certainly possible on bands limited by external noise. I use
my tribander for receiving on 160 & 80 and sometimes on 40. The signal
strength is much less but the signal-to-noise is often much better than on
either a resonant dipole or vertical.

73...Larry N6TW