Callsign:	MDXJ4
MMSI number:	232018195
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	1°16.39' N 103°52.86' E - locator OJ11WG55RN - show map 3.9 km Southeast bearing 118° from Singapore, Singapore [?] 25.4 km Southeast bearing 147° from Johor Bahru, Johor, Malaysia
Last position:	2025-01-20 08:13:38 UTC (29d 11h48m ago) 2025-01-20 16:13:38 +08 local time at Singapore, Singapore [?]
Course:	242° – heading 511°
Speed:	11 km/h
Dimensions:	length 13 m width 4 m draught 0.0 m
Last path:	MDXJ4>ais via S60AK
Positions stored:	581

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.