Callsign:	338493917
MMSI number:	338493917
Vessel class:	Pleasure (37)
Location:	37°48.94' N 122°26.46' W - locator CM87ST75CS - show map 4.9 km Northwest bearing 337° from San Francisco, San Francisco County, California, United States [?] 6.2 km Southeast bearing 141° from Sausalito, Marin County, California, United States 71.5 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-09-13 15:40:32 UTC (2d 11h18m ago) 2025-09-13 08:40:32 PDT local time at San Francisco, United States [?]
Course:	210° – heading 511°
Speed:	39 km/h
Last path:	338493917>ais via SUNSET
Positions stored:	17

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.