Callsign:	338403721
MMSI number:	338403721
Vessel class:	Sailing (36)
Location:	37°49.12' N 122°28.64' W - locator CM87ST26RL - show map 6.1 km South bearing 191° from Belvedere, Marin County, California, United States [?] 6.4 km South bearing 197° from Tiburon, Marin County, California, United States 7.0 km Northwest bearing 314° from San Francisco, San Francisco County, California, United States 73.9 km Northwest bearing 316° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-02 20:43:25 UTC (7d 17h6m ago) 2025-11-02 12:43:25 PST local time at Belvedere, United States [?]
Course:	35° – heading 511°
Speed:	2 km/h
Last path:	338403721>ais via SUNSET
Positions stored:	35

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.