APRS - Automated Position Reporting System

APRS is a real-time tactical digital communications protocol that can be used to implement a multi-user data network over RF. APRS was developed in the 1990's by Bob Bruninga, WB4APR for tracking and digital comms with mobile GPS equipped stations with two way radio.

• Read about building some interfacing hardware to take the place of a TNC
• Read about setting up Linux to run packet operation
• Read about setting up Windows to speak packet.
• Read about my mods to the TinyTrak3.
• Find out about GPS PS/2 female connector pin out.
• Convert OS Grid to Decimal lat/lon for UI-View32

This work is based around the setting up of a trial APRS setup. The servers are accessible from http://aprs.auld.me.uk/ and when the servers are running you will be able to see their status. If you have an APRS client such as UI-View connected to a server you should be able to see the servers as IGates on the map when they're running.

Offsite Links:

• The APRS Internet Service has a site about APRS online http://www.aprs-is.net/
• The APRSWiki has lots of bits about software and hardware options.
• Wikipedia article which gives a nice overview and some other links to have a look at.
• The main UK APRS server is worth a look for UK internet connected users.
• If you prefer your build your own TNC as more of a kit have a look at http://www.tnc-x.com/.
• You can track a station http://find-you.com/cgi-bin/find.cgi?call=CALLSIGN Replacing 'CALLSIGN' with the callsign of the station you are seeking.