On 10/10/2016 9:03 PM, Ray Benny wrote:
I am building a 90 ft, 80m rotatable dipole. I am near the point of fabricating
the inductors/coils that will go about 23 ft out on the element. I am guying
the element just before the inductor. I have several questions:
1. Does the size of the gap
Hmm, the link didn't take! The info is on QRZ.com/VE6WZ
73, Stew K3ND
From: GALE STEWARD via Topband
To: "topband@contesting.com"
Sent: Tuesday, October 11, 2016 11:59 AM
Subject: Re: Topband: 80m rotatable dipole load coil questions
Ray,
There is a lot of interesting info (possibly useful to you) at VE6WZ's website
http://www.qsl.net/ve6wz/intro.htm
In his case, he designed a short boom 2 el 80m yagi, and designed his own
coils. He used the Brian Beezley design program.
73 and best of luck with your antenna project,
Here's a link to a 80M yagi designed and built by VE6WZ.
Some good loading coil info.
73, Stew K3ND
80m 2-el Yagi
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80m 2-el Yagi
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From: Grant Saviers
To: Ray Benny ; "topband@contesting.com"
From a coil loaded 80m 2L yagi (bought JKantennas) and 80m rotatable
dipole I built and reading here are some thoughts.
My rotatable 80m Tornado loaded 86' dipole at 100' doesn't have much of
a pattern, height is everything and at about 130' or so they really
start to play. The beam is at
Ray,
I made a 40M rotary dipole and followed Force 12's Tornado loading coil
design. They issued a study
on the evolution of their loading coils from Tom Schiller's original
design. They first went to a smaller diameter (less efficient) coil and
later back to a larger diameter final version