[TowerTalk] OT - Tri-band Coupled Resonator Antenna Design

[Clay Autery]

Besides avoiding the inflexibility of the GP-15 design, et al., I am
hoping to capitalize on a few features:

Balanced design, so if I absolutely wanted to, I could feed it with
twinlead, ladder, or open wire... probably won't, but can.
It's light and relatively short, even without using tricks to shorten
the 6m driven element.
I can hang it off the side of my tower or the mast I use for the shack
corner of my 80 m loop up to about 30 or so feet up using a
non-conductive arm.

And again, it's a partly academic/practical exercise to gain design skills.

73,

______________________
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 6/2/2017 7:05 PM, Richard (Rick) Karlquist wrote:
> On 6/2/2017 1:12 PM, ersmar wrote:
>> Clay:
>>
>>       Unless you're deadset against store bought, check out Comet
>> Antenna's GP-15. It'll cover 6, 2 and 3/4M in one vertical stick. I
>> have one at 80 ft AGL and it works great.
>>
>> 73 de
>> Gene Smar AD3F
>
> I wasted money on this antenna and then found that:
>
> 1.  It comes tuned to 52 MHz at the factory
> 2.  The SWR at 50.1 MHz is quite high
> 3.  It CANNOT be retuned to 50.1 MHz per the
> manufacturer.
> 4.  Physics prevents retuning it without screwing
> up the other two bands.
>
> You say your antenna "works great".  Does it work
> great on 50.1 MHz?  Or just 52 MHz?  I know mine
> worked great on 52 MHz, but not 50.1 MHz.
>
> Rick N6RK