Callsign:	WDP3841
MMSI number:	368349080
Vessel class:	Sailing (36)
Location:	42°21.83' N 71°01.85' W - locator FN42LI67HI - show map 2.5 km East bearing 76° from Boston, Suffolk County, Massachusetts, United States [?] 3.1 km South bearing 177° from Chelsea, Suffolk County, Massachusetts, United States 3.7 km Northeast bearing 24° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-01-18 17:03:33 UTC (24d 1h27m ago) 2025-01-18 12:03:33 EST local time at Boston, United States [?]
Course:	360° – heading 511°
Speed:	0 km/h
Last path:	WDP3841>ais via kx1t
Positions stored:	1033

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.