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APRS (Automatic Packet Reporting System) is a digital communications system that uses packet radio to send real time tactical information (on amateur radio frequencies). The APRS network is used by ham radio operators all over the world.
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APRS is a well-known technology among hams, with numerous applications in emergency communications, tracking, and weather reporting. In this article, we will discuss what APRS is, how to set it up, how to use it, and the best practices for operating APRS.
This APRS Protocol Reference document represents the coming-of-age of WB4APR’s baby. Starting with a simple concept — a way to track the location of moving objects via packet radio — programs using the APRS protocol have grown into perhaps the most popular packet radio application in use today.
APRS (Automatic Packet Reporting System) is a digital communications system that uses packet radio to send real time tactical information (on amateur radio frequencies). The APRS network is used by ham radio operators all over the world.
APRS is digital communications information channel for Ham radio. As a single national channel (see map at right), it gives the mobile ham a place to monitor for 10 to 30 minutes in any area, at any time to capture what is happening in ham radio in the surrounding area.
A combination of GPS, amateur radio and the Internet, APRS produces real-time position reports and map displays of the location of home stations, moving vehicles, weather, and more. GPS-generated position reports are transmitted every few minutes by packet radio from mobile units on the 2-meter (VHF), 70-cm (UHF)or 30-meter (HF) ham bands.
