Callsign:	WDH7500
MMSI number:	367648770
Vessel class:	Tug (52)
Location:	42°23.45' N 71°03.17' W - locator FN42LJ33PT - show map 3.6 km North bearing 9° from Boston, Suffolk County, Massachusetts, United States [?] 6.0 km West bearing 287° from Winthrop, Suffolk County, Massachusetts, United States 6.4 km North bearing 358° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-02-21 12:48:57 UTC (1d 10h19m ago) 2025-02-21 07:48:57 EST local time at Boston, United States [?]
Course:	326° – heading 511°
Speed:	0 km/h
Last path:	WDH7500>ais via kx1t
Positions stored:	2257

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.