Re: Topband: 80m rotatable dipole load coil questions

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

Re: Topband: 80m rotatable dipole load coil questions

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

Re: Topband: 80m rotatable dipole load coil questions

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 | | | 80m 2-el Yagi | | | From: Grant Saviers To: Ray Benny ; "topband@contesting.com"

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,

Re: Topband: 80m rotatable dipole load coil questions

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

Re: Topband: 80m rotatable dipole load coil questions

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