Callsign:	WDK4268
MMSI number:	368053530
Vessel class:	Sailing (36)
Location:	37°49.76' N 122°28.46' W - locator CM87ST39BA - show map 7.7 km Northwest bearing 321° from San Francisco, San Francisco County, California, United States [?] 16.6 km West bearing 269° from Emeryville, Alameda County, California, United States 74.6 km Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-12 22:45:09 UTC (60d 48m ago) 2025-01-12 14:45:09 PST local time at San Francisco, United States [?]
Course:	90° – heading 511°
Speed:	4 km/h
Last path:	WDK4268>ais via SUNSET
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.