Callsign:	WDQ4103
MMSI number:	368422520
Navigational status:	Under way (engine) (0)
Vessel class:	(99)
Location:	37°46.63' N 122°23.32' W - locator CM87TS36IM - show map 2.7 km East bearing 85° from San Francisco, San Francisco County, California, United States [?] 10.8 km West bearing 254° from Oakland, Alameda County, California, United States 65.2 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-09 01:32:16 UTC (16d 12h44m ago) 2026-02-08 17:32:16 PST local time at San Francisco, United States [?]
Course:	268° – heading 511°
Speed:	5 km/h
Dimensions:	draught 0.0 m
Last path:	WDQ4103>ais via AA6CE
Positions stored:	41

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.