Callsign:	YDA3978
MMSI number:	525100954
Vessel class:	Tug (52)
Location:	1°15.52' N 103°50.52' E - locator OJ11WG12BB - show map 3.6 km South bearing 194° from Singapore, Singapore [?] 24.1 km South bearing 190° from Kampung Pasir Gudang Baru, Johor, Malaysia 24.8 km South bearing 158° from Johor Bahru, Johor, Malaysia
Last position:	2025-02-03 06:10:11 UTC (26d 2h53m ago) 2025-02-03 14:10:11 +08 local time at Singapore, Singapore [?]
Course:	0° – heading 511°
Speed:	0 km/h
Last path:	YDA3978>ais via S60AK
Positions stored:	23

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.