[Towertalk] director rotation
Mark
Mark <AA6DX@arrl.net>
Sun, 12 May 2002 09:48:32 -0700
Ahhh ...that brings back another memory ... one of those spiral aerials ...
the Gonset, I believe ... had dual mounting holes in the boom for the
elements, so you could configure it either as a twist or a standard yagi ...
with either vertical or horizontal elements.
Maybe I'll just build me one of those! Maybe in time for the VHF Party next
month... 73, Mark AA6DX
----- Original Message -----
From: "Chuck Sudds" <Chuck@dxham.net>
To: <towertalk@contesting.com>
Sent: Sunday, May 12, 2002 8:42 AM
Subject: Re: [Towertalk] director rotation
> At 11:18 PM 5/11/02 -0700, you wrote:
>
> The old Telrex antenna company in Asbury Park, NJ, used to sell what they
> called a "Spiralray" 11 element 6 meter beam. I had the 27ft boom model
> and the 36ft boom model and both worked fantastic! They also made one
> exactly like it but having all the elements in the same plane, which I
seem
> to recall had just a tad bit more forward gain. Wish I still had one of
> those antennas!
>
> Chuck - KØTVD
>
> >Interesting discussion ... I have had aerials "malfunction" during winter
> >storms ... read, during contests .. and still work, but had no time to
> >analyze whether it was for the better or worse... "keep the rate up" --
HI
> >.. `tuther thing .. had a couple "TWIST" aerials years ago, on 6M .. as
old
> >rusty remembers, one was and 11 el GOTHAM beam, other was Gonset, I
believe
> >... anyway, there were various twisted element yagi design antennas,
where
> >each element added a certain degree of off-center until the whole
enchilada
> >had made the 360 degree twist .. and mine seemed to work great... the
best
> >of both worlds, probably not master of none.... when I put up a killer
KLM
> >.. my twist, whichever I still had at the time, did not ever beat it...
> >although, sometime it was interesting that it would equal, with such an
boom
> >length difference... and the KLM was slightly higher in altitude, so ...
> >bottom line, twist lost, but sometimes anomalies happen ... I don't think
I
> >will be installing a 20M twist... Gads, too much like sticking a Quad on
a
> >tower! Tnx definitive info, Mike! 73 y'all .. Mark, AA6DX CN70wt