Noise mitigation and coax/feeder considerations
, written by the legendary British amateur radio operator and wartime radar engineer Les Moxon (G6XN) , is widely considered a masterwork for solving these real-world antenna dilemmas. Published by the Radio Society of Great Britain (RSGB) , this book offers a deep, math-light understanding of how antennas interact with their surroundings. It serves as the foundation for the famous Moxon Rectangle antenna —a compact, 2-element directional beam that delivers outstanding performance in restricted spaces.
If you tell me which HF bands you are interested in (e.g., 10m, 20m, or 40m) and your primary location type (e.g., restricted suburban yard, portable/hiking), I can suggest specific design dimensions or point you toward optimized PDF plans.
The critical distance between the tip of the driven element and the tip of the reflector. This gap must be maintained using a non-conductive insulator (like nylon line or Plexiglas). hf antennas for all locations moxon pdf
Excerpts and related documents can be found on Scribd .
Antenna radiation patterns, elevation plots, and azimuth charts to visualize how the antenna performs at various heights above different soil types.
The Moxon antenna is a directional, two-element array consisting of a driven element and a reflector. Unlike a traditional Yagi where the elements are straight, the Moxon folds the ends of both elements toward each other. Noise mitigation and coax/feeder considerations , written by
Selecting the perfect High Frequency (HF) antenna often requires compromising between performance, size, and durability. For amateur radio operators facing space constraints, strict homeowner association (HOA) rules, or harsh environmental conditions, the Moxon rectangle offers an ideal balance. Originally designed by Les Moxon (G6XN), this modified two-element Yagi-Uda antenna provides high gain, an exceptional front-to-back ratio, and a compact footprint.
For decades, the dream of every amateur radio operator has been the same: to work the world on the HF bands from any location. Whether you live on a sprawling rural acreage, a suburban postage-stamp lot, or a high-rise apartment with a restrictive HOA, the laws of physics have always posed the same challenge—how do you fit a full-sized, high-gain, low-noise antenna into a tiny footprint?
To optimize your Moxon antenna for your specific location, consider the following factors: If you tell me which HF bands you are interested in (e
Operators can construct the rectangle using thin-gauge enameled wire (26–30 AWG) or specialized green/black jacketed wire. Spacers made from clear polycarbonate sheet stock maintain the critical tip gaps while remaining invisible from the ground.
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.