Re: B&W Folded Dipole over an Armory

Posted by Ed Tanton on Aug 13, 2017; 9:13pm
URL: http://elecraft.85.s1.nabble.com/Is-it-my-KX3-antenna-or-is-it-lousy-band-condx-tp7633243p7633365.html


   
I have an NOS stainless steel version of the 160M B&W antenna that I bought 20 or 30 years ago. Now I can't put it up because I don't want to interfere with the pattern of my HyGain HyTower. If anyone is interested in it, just send me an email. It will not be inexpensive. Thanks. 


Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: Barry <[hidden email]>
Date: 8/13/17  4:59 PM  (GMT-05:00)
To: Dave Heil <[hidden email]>, [hidden email]
Subject: Re: [Elecraft] B&W Folded Dipole over an Armory

Dave,
     They are used by a greater number than just state. The military,
all, are using HF ALE. It's used because, you are correct about
operators, a link can be set up by just IDing with whom you wish to
talk. The radios run up and down the spectrum until they find each other
and can make a solid linkup. No antenna is flat across that much
spectrum, so in recent times, the T2FD has been employed. It seems
auto-tuners don't keep up with the sounding rate from some of these
radios. It was interesting to me to see the magnificent antenna field at
Rockwell-Collins in Iowa augmented with a T2FD so that they could do
work with their ALE radios. Harris Corp. does the same.

73,
Barry
K3NDM

------ Original Message ------
From: "Dave Heil" <[hidden email]>
To: [hidden email]
Sent: 8/13/2017 4:03:25 PM
Subject: Re: [Elecraft] B&W Folded Dipole over an Armory

>The U.S. Department of State uses many of these B&W folded dipoles in
>Africa and other nations with HF transceivers meant to be used by those
>with little or no radio operations experience.  All the user needs do
>is consult a list of places and frequencies (which are all programmed
>into memory), key the microphone and talk.  These antennas weren't made
>to work DX and neither were the transceivers.  Any easy way to make up
>for the inefficiency is to switch on one of the 500 or 1000 matching
>amplifiers, none of which requires manual band switching or tuning up.
>
>Dave K8MN
>
>On 13-Aug-17 19:36, Fred Jensen wrote:
>>Ummm ... let's be truthful here.  The B&W folded dipole can be found
>>in radio catalogs from the 50's.  We all knew [I was a kid with a new
>>license then and even I knew] that the doohicky at the center of the
>>top wire was a 400 or so ohm non-inductive resistor, and half the
>>power [3 dB] heated it up...
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