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@contesting.com] on behalf of Bruce
[k1fz@myfairpoint.net]
Sent: Wednesday, December 19, 2012 8:07 PM
To: topband@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.
_______________________________________________
It is undesirable to believe a proposition when there is no ground whatsoever
for supposing it is true. - Bertrand Russell
_______________________________________________
It is undesirable to believe a proposition when there is no ground whatsoever
for supposing it is true. - Bertrand Russell
|