Callsign:	YDB4204
MMSI number:	525024416
Vessel class:	Tug (52)
Location:	1°15.62' N 103°50.55' E - locator OJ11WG12CL - show map 3.4 km South bearing 194° from Singapore, Singapore [?] 23.9 km South bearing 189° from Kampung Pasir Gudang Baru, Johor, Malaysia 24.7 km South bearing 158° from Johor Bahru, Johor, Malaysia
Last position:	2025-02-25 14:51:09 UTC (3d 18h18m ago) 2025-02-25 22:51:09 +08 local time at Singapore, Singapore [?]
Course:	142° – heading 511°
Speed:	7 km/h
Last path:	YDB4204>ais via S60AK
Positions stored:	138

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.