Callsign:	WDF3973
MMSI number:	367446340
IMO number:	747819
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Location:	47°38.75' N 122°18.70' W - locator CN87UP24OX - show map 4.7 km North bearing 19° from Seattle, King County, Washington, United States [?] 12.4 km South bearing 170° from Shoreline, King County, Washington, United States 117.6 km Southeast bearing 138° from Victoria, British Columbia, Canada
Last position:	2026-01-28 22:38:13 UTC (7d 20h54m ago) 2026-01-28 14:38:13 PST local time at Seattle, United States [?]
Course:	30° – heading 511°
Speed:	0 km/h
Dimensions:	length 15 m width 4 m draught 0.0 m
Last path:	WDF3973>ais via KB7RYY
Positions stored:	14608

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.