Comment:	Rich Sibley Base
Location:	42°31.57' N 71°22.21' W - locator FN42HM56NG - show map 1.7 km West bearing 259° from Carlisle, Middlesex County, Massachusetts, United States [?] 8.2 km South bearing 182° from Chelmsford, Middlesex County, Massachusetts, United States 31.5 km Northwest bearing 306° from Boston, Suffolk County, Massachusetts, United States 33.9 km Northwest bearing 309° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-05-25 16:38:52 UTC (163d 8h21m ago) 2025-05-25 12:38:52 EDT local time at Carlisle, United States [?]
Altitude:	102 m
Device:	Icom: IC-9700 (D-Star)
Last path:	K1SIB>API970 via DSTAR*,qAR,WB1GOF-B
Positions stored:	2
Other SSIDs:	K1SIB-5 K1SIB-i K1SIB-7

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.