Callsign:	338430888
MMSI number:	338430888
Location:	37°50.18' N 122°26.04' W - locator CM87SU70WR - show map 4.6 km Southeast bearing 154° from Tiburon, Marin County, California, United States [?] 4.8 km Southeast bearing 147° from Belvedere, Marin County, California, United States 6.9 km North bearing 349° from San Francisco, San Francisco County, California, United States 72.8 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-06-29 17:32:52 UTC (25d 16h4m ago) 2025-06-29 10:32:52 PDT local time at Tiburon, United States [?]
Course:	28° – heading 511°
Speed:	9 km/h
Last path:	338430888>ais via SUNSET
Positions stored:	5

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.