[Elecraft] B&W Folded Dipole over an Armory

[Barry]

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" <k8mn at frontiernet.net>
To: elecraft at mailman.qth.net
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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