Unlike a Yagi, which often requires a gamma match, the Moxon naturally presents a 50-Ω feed impedance. This allows for a direct feed with coaxial cable without the need for an antenna tuner, ensuring maximum power efficiency and low SWR. Moxon Antenna Design and Construction
: Folded ends reduce the overall width to approximately 70-75% of a full-size dipole or 2-element Yagi.
It consists of a driven element and a reflector, but they are bent back towards each other, forming a rectangular loop. This folding creates superior capacitive coupling.
The Moxon rectangle antenna solves this problem entirely. Originally designed by Les Moxon (G6XN), this modified two-element Yagi uses folded elements to reduce the antenna's physical width by approximately 30% without sacrificing performance. This article provides a comprehensive technical overview of the Moxon HF antenna, its deployment across diverse locations, and how to access essential design blueprints and PDFs to build your own high-efficiency station. Understanding the Moxon Architecture: Compact Power
The antenna consists of two rectangular "C" shapes facing each other: hf antennas for all locations moxon pdf hot
It provides superior rejection of signals from the rear, making it fantastic for noisy, urban environments.
Search for "Moxon Rectangle Calculator PDF" rather than just "Moxon PDF." The calculator versions allow you to input your operating frequency (e.g., 14.150 MHz) and get millimeter-perfect cuts.
Whether constructed as a permanent wire fixture between trees or as a rotatable aluminum array, the Moxon is arguably the best "first antenna" for the aspiring DXer with a small lot. Its high front-to-back ratio, modest footprint, and excellent gain ensure that it remains a relevant and powerful tool in the HF arsenal.
Without it, RF will travel down the outside of your coax shield. This distorts the radiation pattern, degrades the front-to-back ratio, and introduces RFI (Radio Frequency Interference) into your shack. Unlike a Yagi, which often requires a gamma
If your F/B ratio is poor (you hear signals behind you), shorten the reflector wire by 1% until the rear null deepens.
The enduring "hot" demand for HF Antennas for All Locations is reflected in the frequent online searches for it in PDF format. For a book with such immense practical value, a digital version offers clear advantages. A PDF provides instant access to its 322 pages and countless diagrams, allowing a ham to pull up a specific design on a laptop or tablet right in the middle of a build. It can be easily searched, bookmarked, and carried anywhere, from the workshop to the field. This ease of access helps explain its persistent popularity in the digital age.
The Moxon excels across three common deployment scenarios:
Invented by Les Moxon (G6XN), the Moxon antenna is a modified two-element Yagi-Uda antenna. It features a driven element and a reflector, but with a critical twist: the ends of both elements are folded inward toward each other. It consists of a driven element and a
For advanced builders, downloading NEC files allows you to simulate the antenna’s SWR curve, gain, and take-off angle over various ground qualities and mounting heights. Sourcing PDFs, Schematics, and "Hot" Build Guides
Assemble the antenna at ground level, support it a few feet in the air, and use a modern graphic antenna analyzer to verify your SWR dip. Once validated, hoist it to its final operating height. Conclusion
If you live in an attic, a condo, a townhouse, or a rental property, you have been told to settle for a "dummy load" (a poor antenna). But the Moxon rectangle changes the game. It is the only high-performance directive antenna that scales elegantly from a tiny portable setup to a fixed station powerhouse.
Ever wish you had a compact, high-performance HF antenna that works in tight spaces, reduces QRM, and still delivers serious gain? The might be your new best friend. 🚀