You don't need 5 elements to do this.
You can use three identical antennas .. switching the phasing so that
you are using two of them at a time.
My 40m array has a 'central element' [A] and two other elements [B & C].
They are arranged with one of the other elements to the NE [B] and the
other to the SE [C] of the 'central element'.
By using CORRECT phasing, elements A&B can give modest gain with
excellent F/R both NE and SW, and elements A&C can do the same SE/NW.
Contact me off the reflector for info on the phasing units that I
manufacture for other hams [and myself!].
Don
N8DE
Mike & Coreen Smith wrote:
>
> Hi All,
>
> After the encouraging recent success I've had with my 6M K1WA/K8UR 4 sloper
> array (similar to the one in the ARRL Antenna Handbook-, but modified), I'm
> now considering another 6m or 10m array with slightly more gain, etc.
>
> I know ON4UN does something "similar" on a 80m yagi in his book.....read
> on>>
>
> Has anyone played with a 3-element vertical wire yagi, (electrically
> rotated) centered around a common point?
> (no rotor)
>
> IE: something resembling this (birds eye view) :
>
> . .
> .
> . .
>
> The center dot being a 1/4WL element. Each outside element (I'm thinking)
> could be the length of a reflector
> but with a small coil or linearly loaded piece of wire at the bottom, which
> could be shorted by a simple SPST relay,
> ensuring it was then short enough to be a director.
>
> Therefore, this example might be steered in 4 different directions simply by
> making one of the outside elements
> a director (the rest remain reflectors, see?)
>
> Ideas? Comments?
> I'm not looking for as many posts as the Dummy load oil deal, but a few
> comments batted around regarding
> this reflector related post might be nice ;-)
>
> Mike VE9Antenna Antenna
>
> Michael, Coreen & Corey Smith
> (VE9AA, VE9AAA & Little-VE9 to be)
> 271 Smith Rd
> Waterville, NB
> E2V 3V6
> Canada
> http://members.tripod.com/~ve9aa/index.html
> http://www.geocities.com/RainForest/Vines/2174/
>
> ________________________________________________________________________
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