11/8/2022 0 Comments Antenas yagi 10m![]() ![]() This induced current causes the passive element to Waves radiated by the driven element induces a current in the passive element. Passive "parasitic" element parallel to it at some distance. In its simplest form, this antenna consists of a driven element (typ. So I narrowed it down to a simple half-size 2-element Such aĭirectional antenna requires at least two elements, a full-size antenna for wavelength over 10 mtr will not fit, and 10 mtr is Installation at my QTH basically had to be on my terrace, so space is rather limited. In 2008, when I was between jobs for a while, I decided to build an HF antenna with more directivity than a simple dipole. (expanded Uda-Yagi section), 2 July 2020 (added ref. No part of this publication may be used without permission from the author. Antenas yagi 10m full#It is currently disabled in your browser! Please (re-)enable it for full functionality. Yagi antennas may suffer in performance if mounted elsewhere, like the center of the boom.My website uses JavaScript for menus etc. Note: If you are going to mount the antenna, set it up so the antenna will be forward of the mounts. This will be where you will solder the wires later. Also sand off about 1/2” of paint on the ends of the bottom side of the driven elements. These are extremely sharp if left un-sanded. Sand all the ends of the elements so they are smooth to the touch. This will be the director of the antenna and will attach to the front of the antenna. Simply twist the tape so it disconnects from the spring. If you pull the tape past it’s end, you’ll find that it’s connected to a spring. Disassemble the tape measure by pulling the tape out of the case. The 7” piece connects between the first and second tees. Gluing each piece together, the 17 1/2” piece connects between the tee and the first cross. Assemble the pipe to form the frame ("boom") of the antenna. This, along with the PVC connectors, will form the frame of the antenna. You’ll need to cut two pieces of PVC pipe. Rosin core solder Tape measure with 1” wide tape PVC glue Tools Needed Soldering iron Tape measure Pipe cutters Wire stripper Shears or scissors Sand paper SWR Meter Screwdriver or wrench for tightening the hose clamps I used 18 gauge solid copper wire, but I’m told anything works. Materials List 3/4” Schedule 40 PVC Pipe - at least 25” 6 hose clams big enough to fit around the PVC pipe 1 3/4” PVC tee 2 3/4” PVC crosses 8’ RG-58 cable with a connector attached to one side. And, in the end, we built something useable for when he earns his Technician class license. In my case, my nephew and I used the plans from WB2HOL, but we worked through the math to come up with element lengths. Which is to say you can use the plans to build a perfectly workable antenna, or, you can use the formula for a Yagi antenna to modify the design. ![]() This project was perfect as I could scale it up or down as a lesson in a number of ways. And I have found that I have had to teach him basic algebra in the process. I want him to fully understand the material, not just pass a test. Mostly because I refuse to “teach the test”. The fundamentals of antennas is the one area I’ve been finding difficult to teach my nephew. ![]() There is a total of $20 in materials in this antenna, assuming everything is purchased specifically for this project and not scavenged or salvaged parts. When I set out to find a project, I was looking for something unusual that would grab his attention but something that was easy, fast and required few tools or skills. Topics like basic algebra and principals of electricity. It requires comprehension of concepts that they still have yet to cover in school. Antenas yagi 10m license#While some people discount the Technician level license of amateur radio as “ridiculously simple” (including a well known conservative talk radio personality) it’s not so easy for an eight-year old. Project Background My nephew recently expressed interest in earning his Technician class amateur radio license. I used the design from Joe Leggios (WB2HOL). Disclaimer: This project isn’t new it’s not even my idea or design. Antenas yagi 10m plus#Plus it’s easy to build and gives a great opportunity to teach several subjects with a hands-on approach. This antenna is designed for two-meter operations, which, for a newbie ham operator, is one of the bands available under the Technician license in the US. It’s an antenna built out of PVC pipe, a tape measure and a handful of hose clamps. Are you looking for an easy kid friendly project? Are you looking for a project to encourage a new generation of ham radio operators? This project is unusual, so it’s something that will certainly capture the attention of anyone, particularly a kid. ![]()
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