2022年12月8日 · Welcome to my collection of Amateur Radio Projects. I do a lot of portable operating and prefer lightweight directional antennas such as the Moxon Rectangle. This compact antenna is similar in performance to a full size 2-element Yagi but with a higher front-to-back ratio and a 30% reduction in size.

These optimized wide-band antennas offer up to 16 dBi gain and 30 dB F/B ratio when mounted at 20 feet over average ground (10.2 dBi free space gain). A unique method of fastening and isolating the elements to the boom is detailed and presented to the builder.

For this “Moxon Beam” or MoxBeam project I describe a portable version of my attic antenna that is built from composite lumber, fiberglass tubing, and Home Depot wire for about $75.

2024年11月19日 · World's leading amateur radio web site with news, technical articles, discussions, practice exams and more.

"This antenna is more rugged than the Black Widow and weighs 15 lbs, so it's not a good candidate for most push-up painter poles. I'm currently using a surplus military mast at 35 feet. The antenna is completely weatherproof and consists of fiberglass tubing, aluminum plate, stainless steel hardware, #14 Flexweave wire, and pvc.

A Moxon rectangle antenna projects for the 6 10 15 17 and 20 meter band but include drawings, plans, statistics and homebrewing statistics. You will find this resource in 7 categories on our links directory. The title of the main category is 10M and it deals mainly with …

DRIVEN ELEMENT MOUNTING PLATE BOOM TO MAST MOUNTING PLATE REFLECTOR MOUNTING PLATE 6M MOXON RECTANGLE DESIGN: A,W, BAKER TESTED: A_W_ BAKER NOTES 1. H.POL: 50.5 MHZ RESONANT FREQUENCY COVERS 500 TO 510 MHZ ssg. 8 DIGITAL MODES) WITH MAX SWR OF 1 2. V-POL: 529 MHZ RESONANT FREQUENCY COVERS 52.0 TO 54.0 MHZ (FM MODE) WITH MAX SWR OF 181. 3. SELECT VERSION …

2015年9月7日 · <strong>6m</strong> 4-<strong>Element</strong> <strong>Quad</strong> <strong>Antenna</strong>Build this portable short boom beam with over 8 dBd gain.Summer contests are a great reason to get away from it all and enjoy the pleasures ofamateur radio. I like to combine the VHF and Field Day events with camping so myantennas need to be portable.

A never ending quest for the optimum 6m antenna led me to try a Loop Fed Array Yagi. This design, pioneered by Justin Johnson, G0KSC, claims lower noise and a better 50 ohm impedance match than conventional Yagis by using a loop for the driven element.

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