Callsign:	WDM3329
MMSI number:	368196320
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	LANGLEY (ETA May27 04:21)
Location:	37°47.22' N 122°21.71' W - locator CM87TS68NU - show map 5.2 km East bearing 75° from San Francisco, San Francisco County, California, United States [?] 12.6 km Northeast bearing 44° from Daly City, San Mateo County, California, United States 64.5 km Northwest bearing 321° from San Jose, Santa Clara County, California, United States
Last position:	2025-12-04 18:24:58 UTC (1d 13h40m ago) 2025-12-04 10:24:58 PST local time at San Francisco, United States [?]
Course:	300° – heading 329°
Speed:	3 km/h
Dimensions:	length 30 m width 10 m draught 5.0 m
Last path:	WDM3329>ais via AA6CE
Positions stored:	18627

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.