Tho this is ONE answer, apparently, there is another antenna called the "BIG
WHEEL ANTENNA". I once replied to somone whth the same answer, only to be
told that than isn't the design he was looking for. BTW, this design was
from the AM days, and was shown in lots of arrl handbooks , as well as their
vhf handbooks thru the '60's, and early '70's Don't know what the other "big
Wheel " looks like, but am aware that there are at least 2 antennas called
by that name-- as info-- jim nn7k
----- Original Message -----
From: "Richard Karlquist" <richard@karlquist.com>
To: "Chris BONDE" <ve7hcb@rac.ca>; "Ffive VHN" <f5vhn@yahoo.com>
Cc: <towertalk@contesting.com>
Sent: Friday, July 12, 2002 10:38 PM
Subject: RE: [Towertalk] Big Wheel Antenna or better
> This is from the 3rd edition (1972)
> of the ARRL VHF Manual, p198-9:
>
> Developed by W1FVY and W1IJD
>
> Consists of 3 elements, each
> element made of 1 wavelength
> of wire. The elements are
> formed into (non-circular) loops.
> The loops are in the horizontal
> plane, and oriented at 120? angles,
> like a cloverleaf. The loops
> are driven in parallel with each
> other, and in parallel with a
> matching stub. It is "nearly
> as effective in all directions
> as a horizontal 1/2 wl dipole
> in its favored directions."
>
> They suggest stacking them to
> get omni gain.
>
> For 10 meters, the total diameter
> would be 20 feet. It easily
> covers the 2 meter band and then
> some, so it might be OK on 10,
> which is twice the BW.
>
> Hope that helps. I don't know
> anything about the big wheel: I'm just
> reading to you from the book.
> It occurs to me that it might
> basically act like a circular
> loop fed in 3 places with
> open wire line.
>
> Rick Karlquist N6RK
> richard@karlquist.com
> www.n6rk.com
> www.karlquist.com
>
> > -----Original Message-----
> > From: towertalk-admin@contesting.com
> > [mailto:towertalk-admin@contesting.com]On Behalf Of Chris BONDE
> > Sent: Friday, July 12, 2002 9:07 PM
> > To: Ffive VHN
> > Cc: towertalk@contesting.com
> > Subject: Re: [Towertalk] Big Wheel Antenna or better
> >
> >
> > Is this similat to the FERRIS WHEEL? This was an octagon
> > loop antenna with
> > a special match capacitor, if I remember correctly from y readings.
> >
> > Chris opr VE7HCB
> >
> >
> > At 10:02 AM 2002-07-01 +0100, Ffive VHN wrote:
> > >'ello,
> > >I'm looking for design info (any frequency) on the BIG
> > >WHEEL antenna, radiation patterns and stacking info.
> > >
> > >I was told about one recently and am now thinking
> > >about building one for 10M.
> > >For some reason it does not appear in any of my
> > >(numerous) antenna books. Why ?
> > >Does it have another name ?
> > >Is the design that old/new ?
> > >
> > >If it is an old design is there anything better now?
> > >I'm looking for an omni with gain (Horizontal?/
> > >vertical?).
> > >
> > >I've searched on the net (google) but can only find
> > >adverts for a manufactured product in Germany.
> > >
> > >Thanks in advance
> > >Robert
> > >F5VHN@yahoo.com
> > >
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