Callsign:	WDH4196
MMSI number:	367615170
Vessel class:	Fishing (30)
Location:	42°20.48' N 71°01.81' W - locator FN42LI61IW - show map 1.8 km Northeast bearing 61° from South Boston, Suffolk County, Massachusetts, United States [?] 3.1 km Southeast bearing 128° from Boston, Suffolk County, Massachusetts, United States 7.2 km Southeast bearing 121° from Cambridge, Middlesex County, Massachusetts, United States 7.7 km Southeast bearing 132° from Somerville, Middlesex County, Massachusetts, United States
Last position:	2025-02-28 15:43:14 UTC (17h16m ago) 2025-02-28 10:43:14 EST local time at South Boston, United States [?]
Course:	360° – heading 511°
Speed:	0 km/h
Last path:	WDH4196>ais via kx1t
Positions stored:	4034

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.