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Build a 2 meter 4 element quad antenna
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THE FOLLOWING INFORMATION CAME TO ME FROM JOE LISMAN, K7PZH OF DOS PALOS, CA.
HE GOT IT FROM RAY MILLS, W6WIM, ALSO OF DOS PALOS. THE INFORMATION SHEET WAS
TITLED:
FOUR ELEMENT QUAD - FULLERTON RADIO CLUB
It is supposedly equal to a Cushcraft 11 element beam.
LR 21" per side LT 20.51" per side
84.1" total 82.04" total
Diagonal length 29.73" Diagonal length 29.01"
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LD - 1, 19.9" per side LD - 2, 19.7" per side
79.6" total 78.8" total
Diagonal length 28.14" Diagonal length 27.86"
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The antenna boom is made out of schedule 40 pvc pipe, 1" size, which is 1.5"
in diameter, actual size. The boom is approximately 42" long. The cross
pieces are 1/4 inch bicycle flag poles made out of fiberglass, or you could
use fiberglass fence posts available from Orchard Supply Hardware stores in
California.
TOP VIEW LOOKING DOWN
LR LT LD-1 LD-2
Vertical Polarization Feed Point
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| <-----16.1"-------> | <----12.04"------> | <-----
0.2 wavelength 0.15 wavelength 0.15 wavelength
There it is folks and I hope that you are able to build it from these crude
instructions. REMEMBER FOR VERTICAL POLARIZATION, YOU FEED A QUAD FROM THE
HORIZONTAL SPREADER END. I think that one of the uses of packet should be the
desimination of information. This is my attempt at a construction article.
How about some more homebrew projects with illustrations on packet radio.
I would be interested in reports from anyone who builds this antenna. Good
luck and I will look forward to your commeDoug, KI6DS @ K6RAU-1
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