Callsign:	WDP4334
MMSI number:	368353440
Vessel class:	Sailing (36)
Location:	37°50.20' N 122°25.62' W - lokaator CM87SU80SS - show map 4.9 km Kagusse peiling 148° from Tiburon, Marin County, California, United States [?] 5.2 km Kagusse peiling 141° from Belvedere, Marin County, California, United States 6.9 km Põhja peiling 354° from San Francisco, San Francisco County, California, United States 72.4 km Loodesse peiling 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-09-06 21:04:27 UTC (1d 15h12m ago) 2025-09-06 14:04:27 PDT local time at Tiburon, United States [?]
Course:	24° – suund 511°
Speed:	14 km/h
Last path:	WDP4334>ais via SUNSET
Positions stored:	526

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.