Callsign:	ZGRF9
MMSI number:	319272800
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Location:	21°21.30' S 149°52.62' E - locator QG48WP54FT - show map 68.7 km East bearing 84° from Sarina, Mackay, Queensland, Australia [?] 77.0 km East bearing 107° from Mackay, Mackay, Queensland, Australia 87.5 km East bearing 104° from Walkerston, Mackay, Queensland, Australia
Last position:	2025-08-13 08:04:41 UTC (23d 23h53m ago) 2025-08-13 18:04:41 AEST local time at Sarina, Australia [?]
Course:	125° – heading 122°
Speed:	22 km/h
Dimensions:	length 34 m width 8 m draught 0.0 m
Last path:	ZGRF9>ais via VK4NB
Positions stored:	845

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.