Automatic Position Reporting System (APRS) - Bob G0BUX

APRS - What is it?

  • A system for digital tactical data communication
  • Introduced in 1992
  • Developed by Bob Bruninga, WB4APR
  • Uses the AX.25 packet protocol
  • Special APRS packets embedded in AX.25 packets
  • Operates in un-connected mode
  • Mainly on 144 mhz (144.800 in Europe)

 

Mobile APRS Station - How

  • GPS Receiver - with serial output
  • Integrated Option
    • Kenwood D700/D710 or
    • TH-D7A
  • The other Option
    • Existing Transceiver
    • TinyTrak or Open Tracker

 

 

Fixed APRS Station - How

  • Computer (MAC, Windows, Linux)
  • APRS Software
  • Maps
  • TNC
    • Physical (e.g., Kantronics), or
    • Software (AGW-PE)
  • Transceiver
  • Internet Connection
  • WX Station (optional)

 

 

Extending the Range

  • Digipeating
  • APRS Internet Servers
  • IGATES
  • APRS Database and Search Sites

 

APRS - Why?

  • Disseminating WX Info
  • Public Service Events
  • Tracking mobile stations in emergencies
  • Text Messaging
  • Email
  • We’re hams - do we need a reason?