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G8MNY > TECH 19.04.18 08:33l 83 Lines 3939 Bytes #-2356 (0) @ WW
BID : 16757_GB7CIP
Read: DK3UZ GUEST OE7FMI
Subj: 2m 4el Quad you can build
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IK6ZDE<F1OYP<SR1BSZ<GB7CIP
Sent: 180419/0612Z @:GB7CIP.#32.GBR.EURO #:16757 [Caterham Surrey GBR]
>From g8mny%gb7cip.#32.gbr.euro@i0ojj.ampr.org Thu Apr 19 08:13:56 2018
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>From: g8mny@gb7cip.#32.gbr.euro
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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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| | | | 1" PVC T | | | |
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|__o____________________o_______|_|_|_______o___________________o__|
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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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