Slightly longer than the driven element, acting as the reflector.
: New and pre-owned copies can be found from top-rated sellers like AlibrisBooks on eBay for approximately $38.27 .
Whether you are in a suburban backyard with strict covenants, a small apartment balcony, or operating portable in a mountainous area, the Moxon is highly adaptable. 1. Limited Backyard Spaces (Suburban/HOA)
A two-element parasitic beam with folded element ends that point toward each other. Performance: hf antennas for all locations moxon pdf hot
Because a full 40m Yagi is massive, the 40m Moxon is a hot topic, with many designs offering a folded "mini-beam" solution.
: Folded ends reduce the overall width to approximately 70-75% of a full-size dipole or 2-element Yagi.
Because the air gap between the tips of the driven element and the reflector is critical to the antenna's performance, precise cutting and measuring are mandatory. Changing the wire diameter or insulation type shifts the resonant frequency and matching characteristics. Slightly longer than the driven element, acting as
While Les Moxon’s book covers various designs, he is most famously associated with the Moxon Rectangle , an evolution of the VK2ABQ beam. Design Concept
Search for “Moxon antenna calculator” online — free tools allow you to enter a frequency and get exact wire or tubing dimensions. Many amateur radio handbooks (e.g., ARRL Antenna Book) also include detailed Moxon chapters available as PDF excerpts.
A full-size 20m Yagi requires a 6 m boom and 10 m element span. A 20m Moxon fits on a 4 m boom with a total width of ~7.5 m. It can be mounted just 6–10 m high and still outperform a dipole. Its high F/B reduces local QRM from nearby houses. : Folded ends reduce the overall width to
A 10-meter or 6-meter Moxon is small enough to be disguised as a patio umbrella frame or hidden in an attic.
The Moxon Rectangle folds these elements. The tips of the driven element and the reflector are bent 90 degrees inward, facing each other. This geometry yields several distinct advantages:
Equal to a standard two-element Yagi (approx. 5.5 to 6.0 dBi).