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Ham Radio Articles

Educational guides, tutorials, and technical deep-dives about antennas and amateur radio

Ham operator installing low-loss coaxial cable from rooftop antenna to grounded shack entry panel with test equipment on the bench
November 7, 2025

Choosing the Right Coax: Calculating Feedline Loss, Power Handling, and Length

Learn how to choose coaxial cable by calculating line loss, power handling, and electrical length—plus real examples and practical station tips.

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Technical diagram showing SWR and impedance matching concepts including dipole antenna with standing waves, L-C matching network, reflection coefficient formula, and SWR meter
Nov 2, 2025

Understanding SWR and Impedance Matching in Ham Radio Antennas

Learn what SWR is, how impedance matching works, and how to tune and match your ham radio antenna system for efficient, reliable operation.