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Amateur Radio and Emergency Communications
- Alertfind » A good description of amateur radio’s role in emergency communications.
Glossary and Definitions
- NOJI » The jargon in the hobby explained.
- ARRL‘s Q-Signals and Phonic Alphabet
Coax Loss Calculator
- GPS.gov » Official U.S. government information about the Global Positioning System (GPS) and related topics. GPS is operated and maintained by the U.S. Space Force.
International Distress Frequencies