Callsign:	WDF3171
MMSI number:	367436810
IMO number:	793316
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Location:	47°37.70' N 122°20.07' W - locator CN87TP90UT - show map 2.5 km North bearing 356° from Seattle, King County, Washington, United States [?] 8.0 km West bearing 276° from Medina, King County, Washington, United States 117.9 km Southeast bearing 139° from Victoria, British Columbia, Canada
Last position:	2025-09-05 16:51:42 UTC (8d 5h37m ago) 2025-09-05 09:51:42 PDT local time at Seattle, United States [?]
Course:	143° – heading 511°
Speed:	3 km/h
Dimensions:	length 0 m width 0 m draught 0.0 m
Last path:	WDF3171>ais via KE7QNR
Positions stored:	3909

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.