He opened the PDF. It wasn't like the thick antenna books he owned. This was a survival guide for the desperate.
Detailed diagrams for constructing rugged, wind-resistant hubs and brackets using 3D printing or basic hardware store materials. How to Save This Page as a PDF
No holes in walls, no ground radials, high noise from switching power supplies. The Moxon Solution: Build a small magnetic loop? No – build a portable Moxon for 15m or 10m and mount it on a photography light stand inside a balcony or on a push-up mast clamped to a deck railing. Because the Moxon has deep nulls on the sides (off the tips of the rectangle), you can orient it to null out a noisy neighbor’s plasma TV or a specific apartment building’s switching supply.
Heavy-duty plexiglass, PVC scraps, or marine-grade polymer blocks for the critical gap spacing.
The Moxon design is celebrated for solving three major hurdles for HF operators: The Moxon Rectangle hf antennas for all locations moxon pdf
Mathematical equations to calculate exact dimensions down to the millimeter for any custom frequency (including VHF/UHF bands).
Use an online Moxon Antenna Project calculator to determine precise lengths based on your target frequency, as described in the QST 2004 article on the 6-meter version. If you'd like, I can: Calculate dimensions for a specific band (e.g., 20m or 10m)
The Moxon rectangle remains a highly efficient and adaptable directional HF antenna. Its native 50-Ohm match, strong front-to-back ratio, and compact footprint make it an excellent choice for space-restricted urban yards, harsh marine environments, and portable field operations alike. By selecting the right materials and carefully managing the critical tip gaps, operators can deploy a high-performance directional station anywhere in the world.
Folding the tips reduces the physical width of the antenna by approximately 30% compared to a standard two-element Yagi. He opened the PDF
The most common question: “Can a Moxon cover all HF bands?”
It offers a wide main lobe (often over 100 degrees ), making it more forgiving to aim than a narrow-beam Yagi.
That evening, a rare 10-meter opening to Japan appeared. Leo’s usual antenna would have heard static.
Cut the driven element and reflector wires according to the calculated dimensions for your target frequency. Add 2–3 inches to each end for tuning loops. No – build a portable Moxon for 15m
Urban installations struggle with structural restrictions, deed restrictions (HOAs), and high electromagnetic interference (EMI).
The overall physical width of the front element.
Offers a free download and online viewing of the book (often a scan), often listed as part of the Digital Library of Amateur Radio & Communications (DLARC).
You have room, but you want to focus on one specific direction (e.g., Europe from the US East Coast) without building a massive rotatable tower. The Moxon Solution: Build a monoband Moxon for 40 meters . At 7 MHz, the Moxon is 17.6 feet wide and 5.6 feet tall. This is dramatically smaller than a 40m Yagi (which would need a 30+ foot boom). Mount it on a lightweight TV rotator on a 30-foot wooden pole. You now have a rotatable 40m beam at a fraction of the cost.