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HamCalc

Educational Resources

In-depth articles and guides to help you understand antenna design, calculations, and best practices for amateur radio.

Featured Articles

Basics
Deep dive into magnetic loop antenna performance metrics, efficiency calculations, Q-factor relationships, and bandwidth trade-offs.
Magnetic LoopTheoryPerformance
Basics
Complete guide to dipole antenna design, the 468 formula, end effects, inverted vee adjustments, and practical tuning techniques.
DipoleTuningGuide
Reference
Complete reference guide to amateur radio frequency allocations including HF, VHF, and UHF bands with operating privileges, propagation characteristics, and antenna requirements.
BandsFrequenciesReferencePropagation

All Articles

Deep dive into magnetic loop antenna performance metrics, efficiency calculations, Q-factor relationships, and bandwidth trade-offs.
Magnetic LoopTheoryPerformance
Complete guide to dipole antenna design, the 468 formula, end effects, inverted vee adjustments, and practical tuning techniques.
DipoleTuningGuide
Complete reference guide to amateur radio frequency allocations including HF, VHF, and UHF bands with operating privileges, propagation characteristics, and antenna requirements.
BandsFrequenciesReferencePropagation
Comprehensive reference of conductor materials, variable capacitors, and coaxial cables with specifications and selection guidance.
MaterialsReferenceComponents
Essential safety information about RF exposure, near-field radiation, high voltage capacitors, and proper operating distances.
SafetyRF ExposureBest Practices

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