Callsign:	LANGLAI
MMSI number:	338399214
Vessel class:	Pleasure (37)
Location:	37°48.76' N 122°27.24' W - locator CM87ST55MB - show map 5.2 km Northwest bearing 324° from San Francisco, San Francisco County, California, United States [?] 6.7 km South bearing 172° from Belvedere, Marin County, California, United States 6.8 km South bearing 178° from Tiburon, Marin County, California, United States 72.0 km Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position:	2025-07-18 01:45:38 UTC (9d 9h5m ago) 2025-07-17 18:45:38 PDT local time at San Francisco, United States [?]
Course:	318° – heading 324°
Speed:	3 km/h
Last path:	LANGLAI>ais via SUNSET
Positions stored:	412

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.