Callsign:	WDH4741
MMSI number:	367620880
IMO number:	702065
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	47°36.99' N 122°30.66' W - locator CN87RO87QW - show map 13.5 km West bearing 275° from Seattle, King County, Washington, United States [?] 16.1 km Northwest bearing 313° from White Center, King County, Washington, United States 110.9 km Southeast bearing 145° from Victoria, British Columbia, Canada
Last position:	2025-08-20 22:23:22 UTC (157d 9h39m ago) 2025-08-20 15:23:22 PDT local time at Seattle, United States [?]
Course:	0° – heading 511°
Speed:	0 km/h
Dimensions:	length 12 m width 4 m draught 0.0 m
Last path:	WDH4741>ais via KB7RYY
Positions stored:	836

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.