Location:	42°25.20' N 71°04.80' W - locator FN42LK00JT - show map 5.0 km Northwest bearing 309° from Chelsea, Suffolk County, Massachusetts, United States [?] 7.0 km North bearing 346° from Boston, Suffolk County, Massachusetts, United States 9.9 km North bearing 345° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2026-01-30 17:16:46 UTC (7d 10h45m ago) 2026-01-30 12:16:46 EST local time at Chelsea, United States [?]
Device:	aprs.fi: iPhone/iPad app (app, ios)
Last path:	KC1YKV-7>APFII0 via WIDE1-1,WIDE2-1,qAR,W1XM
Positions stored:	23
Other SSIDs:	KC1YKV KC1YKV-4 KC1YKV-4 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.