Callsign:	NMNB
MMSI number:	338926455
Navigational status:	Moored (5)
Vessel class:	Law enforcement (55)
Destination:	BOSTON
Location:	42°22.15' N 71°03.05' W - locator FN42LI38VN - show map 1.4 km Northeast bearing 32° from Boston, Suffolk County, Massachusetts, United States [?] 2.9 km Southwest bearing 210° from Chelsea, Suffolk County, Massachusetts, United States 4.0 km North bearing 358° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-02-11 13:21:03 UTC (3h22m ago) 2025-02-11 08:21:03 EST local time at Boston, United States [?]
Course:	360° – heading 198°
Speed:	0 km/h
Dimensions:	length 46 m width 7 m draught 0.0 m
Last path:	NMNB>ais via kx1t
Positions stored:	2200

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.