Callsign:	WDM5755
MMSI number:	368218920
Vessel class:	Sailing (36)
Location:	37°54.48' N 122°22.98' W - locator CM87TV47BV - show map 7.5 km Northeast bearing 59° from Tiburon, Marin County, California, United States [?] 8.2 km Northeast bearing 61° from Belvedere, Marin County, California, United States 15.1 km North bearing 12° from San Francisco, San Francisco County, California, United States 76.4 km Northwest bearing 326° from San Jose, Santa Clara County, California, United States
Last position:	2025-02-28 02:52:46 UTC (5d 20h51m ago) 2025-02-27 18:52:46 PST local time at Tiburon, United States [?]
Course:	186° – heading 235°
Speed:	0 km/h
Last path:	WDM5755>ais via SUNSET
Positions stored:	1

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.