Cockroach — Prepper Central
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ARRLHQ

@ARRLHQ

— · 23 videos curated

Ham radio communications infrastructure and amateur radio equipment for emergency preparedness and off-grid connectivity.

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QST: Ask Dave, September 2026 — SWR vs Reflection Coefficient
18:33YouTube

QST: Ask Dave, September 2026 — SWR vs Reflection Coefficient

Comms·312 views·1 month ago

Eighteen-minute technical explainer on standing-wave ratio and reflection coefficient in amateur radio transmission lines, with worked examples.

amateur-radioantenna-tuningswrtransmission-lines