Callsign:	WDJ3650
MMSI number:	367770030
Vessel class:	Sailing (36)
Location:	37°49.10' N 122°28.75' W - locator CM87ST26MJ - show map 7.1 km Northwest bearing 313° from San Francisco, San Francisco County, California, United States [?] 8.3 km Southeast bearing 143° from Tamalpais-Homestead Valley, Marin County, California, United States 11.3 km Southeast bearing 149° from Mill Valley, Marin County, California, United States 74.0 km Northwest bearing 316° from San Jose, Santa Clara County, California, United States
Last position:	2025-02-08 22:59:27 UTC (3d 20h55m ago) 2025-02-08 14:59:27 PST local time at San Francisco, United States [?]
Course:	148° – heading 511°
Speed:	7 km/h
Last path:	WDJ3650>ais via SUNSET
Positions stored:	863

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.