Location:	42°37.44' N 71°20.06' W - lokaator FN42HO99VS - show map 3.8 km Kirdesse peiling 45° from Chelmsford, Middlesex County, Massachusetts, United States [?] 9.8 km Kirdesse peiling 60° from Westford, Middlesex County, Massachusetts, United States 37.1 km Loodesse peiling 323° from Boston, Suffolk County, Massachusetts, United States 39.8 km Loodesse peiling 324° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-09-08 16:03:45 UTC (1d 10h20m ago) 2025-09-08 12:03:45 EDT local time at Chelmsford, United States [?]
Altitude:	59 m
Device:	Icom: IC-5100 (D-Star)
Last path:	AA1HO>API510 via DSTAR*,qAR,WB1GOF-C
Positions stored:	2202

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.