Callsign:	HYDRO
MMSI number:	503160490
Navigational status:	Under way (engine) (0)
Vessel class:	(90)
Location:	33°04.52' S 151°35.54' E - locator QF56TW11CW - show map 4.2 km South bearing 170° from Rathmines, New South Wales, Australia [?] 8.9 km East bearing 86° from Dora Creek, Lake Macquarie Shire, New South Wales, Australia 23.8 km Southwest bearing 226° from Newcastle, Newcastle, New South Wales, Australia 95.0 km North bearing 22° from Sydney, City of Sydney, New South Wales, Australia
Last position:	2025-03-02 01:47:06 UTC (9d 16h28m ago) 2025-03-02 12:47:06 AEDT local time at Rathmines, Australia [?]
Course:	314°
Speed:	39 km/h
Dimensions:	draught 0.0 m
Last path:	HYDRO>ais via VK2EHQ
Positions stored:	1671

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.