For operators looking to build, optimize, or troubleshoot this design in the field, having a comprehensive, offline reference is invaluable. What is Included in the Full PDF:
The geometry yields a native 50-Ohm feedpoint impedance at resonance. This eliminates the need for lossy matching networks, gamma matches, or hairpins.
Marine installations require 316 marine-grade stainless steel hardware, marine-grade tinned copper wire, and UV-stabilized high-density polyethylene (HDPE) insulators.
The Moxon Rectangle is favored for its balance of simplicity and high-end performance metrics: hf antennas for all locations moxon pdf
If you are searching for a single resource that combines theory, practical construction, and location-specific solutions, you’ve likely been looking for a comprehensive . In this article, we will explore why the Moxon design is the Swiss Army knife of HF antennas, how to adapt it to any QTH (from dense city centers to remote field operations), and where to find (or how to create) the definitive PDF guide that belongs in every shack.
High-frequency (HF) antenna design often involves a trade-off between gain, size, and bandwidth. The Moxon Rectangle addresses these constraints by utilizing a "rectangle" of wire or tubing, where both the driven element and the reflector have ends folded toward each other. This configuration provides directional properties comparable to a two-element Yagi but in a significantly smaller physical area, making it ideal for "all locations," including space-restricted urban environments and portable field operations. 2. Design Principles and Geometry
A Moxon can be built using thin wire and hidden in a tree or painted to match the roof. Its low profile makes it great for locations with strict antenna restrictions. Finding a Moxon Antenna PDF (Building Guide) For operators looking to build, optimize, or troubleshoot
If outdoor installation is prohibited, the antenna can be mounted horizontally or vertically inside an attic. Operators must keep the elements away from metal ductwork, foil-faced insulation, and electrical wiring to prevent detuning.
HF Antennas for All Locations: The Moxon Rectangle Advantage (PDF Guide)
This paper explores the design and practical application of the Moxon Rectangle, a two-element parasitic array originally developed by Les Moxon (G6XN). Characterized by its unique folded-end geometry, the Moxon antenna offers a compact footprint approximately of a standard dipole while maintaining high front-to-back ratios and a nearly 50-ohm feedpoint impedance. This study synthesizes the technical foundations laid out in Moxon's seminal work, HF Antennas for All Locations , and examines modern implementations for portable and fixed HF stations. 1. Introduction Characterized by its unique folded-end geometry
| Band (Typical Frequency) | Element Spreader Length (F) | | :--- | :--- | | 6m (50.2 MHz) | 1.16 m (116 cm) | | 10m (28.5 MHz) | 2.05 m (205 cm) | | 15m (21.2 MHz) | 2.75 m (275 cm) | | 20m (14.2 MHz) | 4.11 m (411 cm) | | 40m (7.15 MHz) | 5.76 m (576 cm) | Data adapted from DK7ZB's 1mm wire Moxon dimensions for common bands .
The Moxon antenna consists of two primary parts: a (slightly less than half the rectangle) and a reflector (slightly more than half).
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