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