Callsign:	WDL4230
MMSI number:	366918840
Vessel class:	Fishing (30)
Location:	37°49.19' N 122°28.60' W - locator CM87ST26SS - show map 4.4 km South bearing 170° from Sausalito, Marin County, California, United States [?] 6.0 km South bearing 190° from Belvedere, Marin County, California, United States 7.1 km Northwest bearing 315° from San Francisco, San Francisco County, California, United States 74.0 km Northwest bearing 316° from San Jose, Santa Clara County, California, United States
Last position:	2025-12-22 21:00:38 UTC (1d 21m ago) 2025-12-22 13:00:38 PST local time at Sausalito, United States [?]
Course:	98° – heading 511°
Speed:	23 km/h
Last path:	WDL4230>ais via SUNSET
Positions stored:	862

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.