Callsign:	WDF7543
MMSI number:	366787340
Navigational status:	Under way (sailing) (8)
Vessel class:	Towing (31)
Location:	42°21.76' N 71°01.97' W - locator FN42LI67BA - show map 2.3 km East bearing 78° from Boston, Suffolk County, Massachusetts, United States [?] 3.5 km Northeast bearing 23° from South Boston, Suffolk County, Massachusetts, United States 6.1 km East bearing 103° from Cambridge, Middlesex County, Massachusetts, United States 6.1 km Southeast bearing 117° from Somerville, Middlesex County, Massachusetts, United States
Last position:	2025-02-27 17:23:04 UTC (15h38m ago) 2025-02-27 12:23:04 EST local time at Boston, United States [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	draught 1.0 m
Last path:	WDF7543>ais via kx1t
Positions stored:	978

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.