B.A.R.C maintains an APRS digi-repeater located at its Mount Kitchener site (PF95mk02). Live Station information for BK5BRC-1 and the club’s map data is available online.
More detail is on the VK Australia APRS website, and South Australian data is available on the VK5 webpage.
APRS is short for Automatic Position Reporting System, which was designed and is copyright to Bob Bruninga, WB4APR, and introduced by him at the 1992 TAPR/ ARRL Digital Communications Conference.
International APRS information can be found at: http://aprs.org and login in is available at: https://aprs.fi