|[AMRadio] Valiant and Loop progress|
barry_sherwood at yahoo.com
Wed Dec 7 13:06:21 EST 2005
Well since your gonna need 100 ft towers for supports
why not configure it in a delta loop and use the tower
for one side of the loop, since your wishing and it is
--- W5OMR/Geoff <w5omr at satx.rr.com> wrote:
> Barry Sherwood wrote:
> >Yep Geoff used aluminum ground wire bought at rat
> >shack to wind the coil with. Probably cannot get
> >at rat shack any more either!
> I don't know if it's still available, but a couple
> of decades or so,
> ago, my dad built up a 2-element VHF Quad, for DF
> work, out of aluminum
> clothesline wire.
> Probably somewhere in the neighborhood of 3/16" ~
> 1/4" diamater -
> self-supporting... he use a couple of peices of
> plexi-glass for element
> supports, and one end of the plexi for the
> feed-point. Worked well.
> Years later (about 3 ago, now) I used a 2-elemnt
> quad on 17m SSB, and
> worked the world on it. Not that I have ever been
> into hunting' DX, but
> that quad would open the band, and put it to sleep
> and more often than
> not, be one of the last stations heard from this
> area, with just 100w on
> I wish I had the room for a rotatable 2-element quad
> on 75m.
> Failing the room to rotate, a remote coax switch on
> the reflector could
> add/subtract lengths of line to change the direction
> of the f/b pattern.
> lessee... 1005 / 3.9Mc = ~260' / 4 = ~ 65' per side.
> There would have
> to be a pair of 100' tall supports, with a bridle
> to hold up the top
> part of the elements, and spaced at about 65
> electrical degrees @ 3.9Mc
> would put the towers at around 45 1/2' apart...
> hey, while I'm dreaming, why not have two of those
> setups? one for the
> East/Northeast and the other for the West/Northwest.
> I'm rather centrally located here, in South Central
> I did dream up a multi-band, 2-element phased Quad
> array. I've never
> had the opportunity to put it up and test it, but I
> think it'd work fine.
> Tell me what you think
> w 5 o m r d o t s h a c k n e t d o t n u
> slash ~ w 5 o m
> r s l a s h h a m s t u f f s l a s h Q u
> a d
> there's no www... just http://
> 73 = Best Regards,
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