Hf Antennas For All - Locations Moxon Pdf Hot

HF antennas for all locations — Moxon, PDF, and staying hot

Below is a structured overview based on the core principles found in Moxon's work and subsequent technical papers. 1. Overview of the Moxon Rectangle

Simplified Design

: Moxon uses minimal mathematics to explain how antenna elements interact, making the content accessible for both beginners and experienced experimenters. hf antennas for all locations moxon pdf hot

2. Critical Design Data (From the “Hot” PDFs)

• Wingspan Reduction: A Moxon rectangle typically has a wingspan of roughly 0.5 wavelengths (compared to 0.5 wavelengths for a dipole width, but effectively shorter due to the bending, resulting in a footprint roughly 70-75% of a standard dipole).
• Gain: The Moxon provides approximately 5.5 to 6.0 dBi gain (about 3.5 to 4 dBd). This is roughly 3 dB higher than a standard dipole.
• Front-to-Back Ratio (F/B): One of the Moxon’s "hot" characteristics is its phenomenal F/B ratio, often exceeding 20-30 dB. This makes it exceptional for rejecting noise from the rear, a critical feature for urban operators.

• They solve the small-lot HF problem better than a mag loop (narrow bandwidth) or vertical (noise).
• They include height vs. gain curves — critical for low mounting.
• They show how to switch bands with one feedline (by adding relay-switched extensions).
• They contain NEC models for EZNEC or 4nec2 — you can simulate your exact location.