Topband: Delta loops antennas

[Shoppa, Tim]

On the "doublet" vs "dipole": at various times in history, the word "dipole" was taken by some to mean "quarter wave dipole", and doublet was a more general term for a balanced antenna. I will look in my older handbooks and see if there was a "singlet" (vertical? End fed?) in there. Sometimes I go looking in the 30's handbooks for vertical/Marconi style antennas and find nothing that I recognize at all, maybe I should be looking for singlets.

There are some complications... for decades the ARRL handbooks showed charts for doublets with strictly prescribed feedline lengths - I think they were intended to be optimizations while avoiding resonances in feedline but the reasoning behind the chart was never well explained, turning it into a "gospel" for many.

What has thrown me for a loop many times is the "GP Antenna". In my gut I feel that "GP"="General Purpose" but sometimes I can eventually figure out that it means "Ground Plane".

Tim N3QE
________________________________________
From: Topband [topband-bounces at contesting.com] on behalf of Bruce [k1fz at myfairpoint.net]
Sent: Wednesday, December 19, 2012 8:07 PM
To: topband at contesting.com
Subject: Topband: Delta loops antennas

I became aware of an antenna called the KAZ a few years ago. A broadcast
band SWL wanted a transformer for one. He furnished the basic antenna
drawing that was a Delta Loop.  Delta Loop antennas have been around for
very many years. Anyway someone had  published ,a Delta Loop, naming it a
KAZ antenna.   Seems to be mostly Broadcast band DX listeners.

>From years ago:  Was there an antenna called a doublet that was a basic
dipole ?

If someone is looking for a 160 meter DX delta loop antenna, I recommend the
K6SE  loop.
Earl, K6SE (sk) is one of our 160 meter heroes.


73
Bruce-K1FZ
www.qsl.net/k1fz/

< The "KAZ" receiving loop is related to the flag and pennant loops, and the
< K9AY loop.

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