Location:	42°38.30' N 71°27.35' W - locator FN42GP53HE - show map 4.6 km Southeast bearing 152° from Dunstable, Middlesex County, Massachusetts, United States [?] 10.2 km East bearing 73° from Groton, Middlesex County, Massachusetts, United States 44.9 km Northwest bearing 314° from Boston, Suffolk County, Massachusetts, United States 47.5 km Northwest bearing 316° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2026-01-23 10:05:49 UTC (40m55s ago) 2026-01-23 05:05:49 EST local time at Dunstable, United States [?]
Last WX report:	2026-01-23 10:41:00 UTC (5m44s ago) – show weather charts -5.6 °C 58% 1025.4 mbar 0.0 m/s Northwest
Device:	Unknown: Unknown
Last path:	KC1TLF-15>APRS via TCPIP*,qAC,T2LANE
Positions stored:	2
Other SSIDs:	KC1TLF-10 KC1TLF-12 KC1TLF KC1TLF-5 KC1TLF-3
Bulletins:	BLN1: Billerica ARS Weekly Net Wednesdays at 8pm on W1DC Repeater. See W1HH.org for details. (31m9s ago) BLN1BLN1: W1HH.org for details. (14d 21h15m ago) BLN2: Billerica ARS Monthly Club Meeting First Wednesday of the month. Visitors welcome. See W1HH.org for details. (38s ago)

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.