SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-aprs-map

Which is an application of APRS?

Real-time tactical digital communications with a map showing station locations.

  1. Voice over internet between repeaters
  2. Real-time digital messages with a map of stations ✔
  3. Counting stations signed into a repeater

Why: APRS, the Automatic Packet Reporting System, sends short data packets such as GPS position, text messages and weather. Software then plots stations on a map.

Huh, didn't know that: Most US APRS activity is on 2 meters, at 144.390 MHz.

The dad joke
Why did the APRS tracker never get lost? It always knew its position.
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Sources

  1. NCVEC 2026-2030 Technician Question Pool (Feb 19, 2026 release) https://www.ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf

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