Template:Featured article/36
APRS, the Automatic Packet Reporting System, is a shared amateur data network for exchanging short, real-time information: where stations are, the local weather, events and objects, and brief text messages. It was developed by Bob Bruninga, WB4APR, and in North America runs on a single frequency, 144.390 MHz. Stations broadcast packet radio bursts that digipeaters relay on the air and iGates pass to the internet, where they appear on public maps. At public-service events and in emergency communications, APRS shows net control where every vehicle is. Read more…