Kenny
One easy solution might be the 2 element Quad shown in the attached file.
I have one stored in my Garage made of 1/2" PVC pipe with the joints
held together by set screws not Glue so I can take it apart after use
like "Field Day".
The attached GIF file gives appx dimensions and construction
details. Formulas for the Elements are listed below - the spreader
lengths and spacing on the drawing worked ok for me for 50.125. The
length for the wire I used 60 3/4" on each side for the reflector
with a 4" stub. The driven element was 58 5/8" on each side. Be
sure to leave enough extra wire to allow for securing to the
insulators. I used 3" Glass "Dog bone" type (you can use a 3-4" piece
of 1/2" PVC pipe for a Tempy Insulator). Spacing of 20" between
elements worked ok for me.
I used 1/2" PVC Pipe for the spreaders and 3/4" for the Boom and 1"
for the mast.
The wire is 18ga stranded wire
The best thing is that the PVC, and fittings (You might want to buy
the 1/2" Cross tees here in the states) are available almost anywhere
in the world. You can go to most places in the world and buy
the pipe there and not worry about carrying an antenna.
FORMULA
Driven
element = 1005 Reflector =
1030
f(mHz)
f(mHz)
Element spacings are on the order of 0.14 to 0.2 wavelength
(meters) = 300
f(mHz
By the way, Cubex makes its quads in a "travel-friendly" version. My
King-Bee (4 element 6M/7 element 2M) has the 6M spreaders cut in
half and attached to the boom with 3/4" Fiber glass sleeves that pass
through the boom and secure with screws and nuts. The boom also
separates into two sections and will easily fit into a 4" fishing rod holder.
Mine has been together and apart about 6 times for Fielday and
portable 6M/2M operation.
You can see the antenna on their web site; http://cubex.com , check
out the new models section for the "Knockdown version of the
"Kingbee". The new version has 8 elements on 2M now.
Questions - just ask
73
Bob C.
W2BZY
QRV 160M-3CM
from EL98hr
At 01:00 PM 3/24/2008, k2kw-8@adelphia.net wrote:
Does anyone know of a super light weight 6M antenna for a light
weight DXpedtion? (hopefully it's OK to ask here)
I'm thinking along the lines of a sub-5 lb class of antenna that
might fit into luggage. This is my honeymoon, so no KW, no monster
antennas, and minimal operating time.
I see that Hex-beam has a real light weight antenna. And maybe
Dunestar's 2 ele quad. Are there any other options? Or maybe
someone has built a super light weight yagi out of shock-corded tent poles?
Outrageous location on Saba in early July. One thought is to lay a
wire yagi on the deck...
Many thanks, Kenny K2KW
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