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General

APRS in the Northern Territory

This section provides information regarding the state APRS network not covered in the national site.

APRS in Western Australia

This section provides information regarding the state APRS network not covered in the national site.

APRS in South Australia

This section provides information regarding the state APRS network not covered in the national site.

APRS in Queensland

This section provides information regarding the state APRS network not covered in the national site.

APRS in Victoria

This section provides information regarding the state APRS network not covered in the national site.

APRS in NSW & ACT

This section provides information regarding the state APRS network not covered in the national site.

APRS in Tasmania

This section provides information regarding the state APRS network not covered in the national site.

This section provides information regarding the APRS network in Tasmania not covered in the national site.

What is APRS ?

Also known as Automatic Packet Reporting System, APRS was developed by Bob Bruninga, WB4APR, and is an amateur radio based digital communications system for local, tactical, real-time exchange of information among all members of a net, including map based displays for situational awareness.

APRS is used to transmit real-time information including messages, bulletins, announcements and the locations of any station or object via packet radio protocols. Real-time reporting of station position for mobiles is facilitated using the Global Positioning System (GPS). APRS is capable of transmitting a wide variety of data including weather reports, short text messages, radio direction finding bearings, telemetry data, and storm forecasts. These reports can be combined with a computer and mapping software to show the transmitted data superimposed on a variety of map displays and special radios.

With various implementations and additions APRS has expanded to a world wide network, though it's fundamental objective still remain the same. See Bob Bruninga's description for more details.

The Automatic Position Reporting System, APRS, allows mobile users and objects to report their current position over radio. This enables the objects position to be automatically displayed and updated on computers or special radios running APRS mapping applications. APRS can have many uses, some amateurs have even used it to track their stolen cars

D-STAR Position Reporting System (DPRS)

Some D-Star radios have integrated GPS capabilities, and others can have a GPS unit plugged into them.  These radios are capable of transmitting thier positions over the low-rate data channel of a D-STAR repeater at regular intervals.

Many D-STAR repeaters (gateways) run a software application to send these DPRS packets into the APRS-IS. Once they are in the APRS-IS network, they are treated as a standard APRS beacon.

The difference between a DPRS and APRS message is that DPRS only supports an ALPHA SSID (A-Z) where APRS only supports a NUMERIC SSID (0-15).  This means that a station that has transmitted a position via DPRS can be easily identified due to the letter following thier callsign (often -P for Portable or -M for Mobile)

More information on D-STAR operation in Australia can be found here.

 

 

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