Hf Antennas For All Locations Moxon Pdf Hot Access
The Moxon excels across three common deployment scenarios:
Before we give you the building data, let’s benchmark the Moxon against traditional HF antennas.
| Antenna Type | Space Required (20m band) | Gain (dBi) | F/B Ratio | HOA / Stealth | Tuning Difficulty | | :--- | :--- | :--- | :--- | :--- | :--- | | ¼ Wave Vertical | 16.5 ft wire + radials | 0 | 0 dB | Moderate (radials) | Easy | | Dipole | 33 ft wire | 2.15 | 0 dB | Poor (long wire) | Very Easy | | 2-Element Yagi | 25 ft boom + 33 ft elements | 6.5 | 15 dB | Poor (huge) | Moderate | | Moxon Rectangle | 20 ft boom + 22 ft elements | 5.5 | 25 dB | Excellent (low profile) | Easy |
The Verdict: The Moxon gives you 85% of a Yagi's performance in 60% of the space. For "all locations" (apartment balconies, RV parks, suburban backyards), it is unbeatable. hf antennas for all locations moxon pdf hot
As urbanization increases and available real estate for amateur radio stations decreases, the need for compact, high-performance High Frequency (HF) antennas has become critical. Traditional horizontal dipoles and Yagi-Uda arrays often require significant turning radiuses and real estate that many operators cannot afford. This paper explores the Moxon Rectangle as a superior alternative. By bending the ends of a dipole inward, the Moxon design achieves a significant reduction in wingspan (approximately 70% of a full dipole) while maintaining excellent gain and a distinct directional pattern. This paper details the theory, construction, performance characteristics, and practical applications of the Moxon antenna, proving its viability as a "hot" solution for restricted locations.
Invented by Les Moxon (G6XN), the Moxon rectangle consists of two parallel elements: a driven element and a reflector, bent into a rectangular or "U" shape. The ends are folded inward, reducing the overall width by about 30–40% compared to a standard two-element Yagi.
Key characteristics:
If you want an HF antenna that’s compact, efficient, and works in constrained spaces, the Moxon rectangle is a top practical choice. Below is a concise, blog-ready post you can use or adapt.
For the 20m band (14.150 MHz center):
| Component | Dimension | Inches | Feet | | :--- | :--- | :--- | :--- | | Driven Element (total wire) | 41' 7" | 499" | 41.6' | | Reflector (total wire) | 43' 3" | 519" | 43.25' | | Spacing between elements | 4' 2" | 50" | 4.16' | | Element width (D1 & R1) | 10' 5" | 125" | 10.4' | The Moxon excels across three common deployment scenarios:
For the 10m band (28.4 MHz):
| Component | Dimension | Inches | Feet | | :--- | :--- | :--- | :--- | | Driven Element | 20' 8" | 248" | 20.6' | | Reflector | 21' 6" | 258" | 21.5' | | Spacing | 2' 1" | 25" | 2.08' |
Pro Tip: The hot PDFs also include a "hairpin match" (a shorted stub across the feedpoint) to bring the impedance to exactly 50 ohms. On 20m, this is typically a 6-inch loop of 300-ohm twinlead or a 4-inch piece of wire folded back. Invented by Les Moxon (G6XN), the Moxon rectangle
The Moxon Rectangle stands as a testament to innovative antenna design. It disproves the axiom that effective HF antennas require vast acreage. By combining the mechanical efficiency of a shortened wingspan with the electrical efficiency of a directional array, the Moxon provides a "hot" solution for the modern amateur.
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.