Location:	42°25.25' N 71°04.81' W - locator FN42LK00JX - show map 5.1 km Northwest bearing 310° from Chelsea, Suffolk County, Massachusetts, United States [?] 7.1 km North bearing 346° from Boston, Suffolk County, Massachusetts, United States 10.0 km North bearing 345° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2026-01-30 19:42:14 UTC (7d 6h11m ago) 2026-01-30 14:42:14 EST local time at Chelsea, United States [?]
Device:	aprs.fi: iPhone/iPad app (app, ios)
Last path:	KC1YKV-4>APFII0 via WIDE1-1,WIDE2-1,qAR,W1XM
Positions stored:	1
Other SSIDs:	KC1YKV KC1YKV-7 KC1YKV-7 KC1YKV-i KC1YKV-5 KC1YKV-10 KC1YKV-9

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.