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G8MNY > TECHNI 17.07.23 08:01l 74 Lines 3604 Bytes #999 (0) @ WW
BID : 51896_GB7CIP
Read: GUEST
Subj: 2m 4el Quad you can build
Path: IZ3LSV<I3XTY<GB7COW<KE0GB<W0ARP<LU4ECL<OK2PEN<GB7CIP
Sent: 230717/0655Z @:GB7CIP.#32.GBR.EURO #:51896 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
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 27.82"
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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 mad out of fibreglass, or you could
use fibreglass fence posts.
TOP VIEW LOOKING DOWN
LR LT LD-1 LD-2
Vertical Polarisation Feed Point
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V
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| <-----16.1"------> | <----12.4"------> | <-----12.4"-----> |
0.2 wavelength 0.15 wave length to build
YOU FEED A QUAD FROM THE HORIZONTAL SPREADER END.
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 & I will look forward to your comments.
73 de Doug, KI6DS @K6RAU-1
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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