APRS — Automatic Packet Reporting System.
Radios beacon their position and short messages, which get relayed to the internet. Useful for tracking, weather data, and messaging.
Look this up in Pocket Elmer, along with 100 more
Related words
- Band — A range of frequencies set aside for a purpose.
- Simplex vs duplex — One frequency versus two.
- Propagation — How your signal travels.
- Gray line — The band of twilight moving around the earth.
- Offset — The gap between transmit and receive frequency.
- SSB — Single Sideband. HF voice.
- Solar flux — A number that tracks solar activity.
- RTTY — Radio Teletype.