Callsign:	WDN3040
MMSI number:	368267780
Vessel class:	Pleasure (37)
Location:	37°51.49' N 122°23.32' W - locator CM87TU35IX - show map 6.2 km East bearing 106° from Tiburon, Marin County, California, United States [?] 6.8 km East bearing 104° from Belvedere, Marin County, California, United States 9.6 km North bearing 16° from San Francisco, San Francisco County, California, United States 72.2 km Northwest bearing 323° from San Jose, Santa Clara County, California, United States
Last position:	2025-02-28 00:41:30 UTC (6d 44m ago) 2025-02-27 16:41:30 PST local time at Tiburon, United States [?]
Course:	105° – heading 289°
Speed:	9 km/h
Last path:	WDN3040>ais via SUNSET
Positions stored:	47

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.