Location:	42°36.27' N 71°21.46' W - locator FN42HO75BB - show map 943.1 m Northeast bearing 56° from Chelmsford, Middlesex County, Massachusetts, United States [?] 9.7 km Southeast bearing 146° from Tyngsboro, Middlesex County, Massachusetts, United States 36.7 km Northwest bearing 318° from Boston, Suffolk County, Massachusetts, United States 39.3 km Northwest bearing 320° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-11-26 03:30:37 UTC (1m44s ago) 2025-11-25 22:30:37 EST local time at Chelmsford, United States [?]
Last WX report:	2025-11-26 03:30:37 UTC (1m44s ago) – show weather charts 7.8 °C 95% 1015.9 mbar 0.0 m/s North
Device:	Unknown: Unknown
Last path:	N1BFO>APRS via TCPXX*,qAX,CWOP-7
Positions stored:	6

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.