Comment:	Waltham Girl Scout STEM Fest
Location:	42°23.19' N 71°12.94' W - ตำแหน่ง FN42JJ42CS - show map 9.1 km ตะวันตก bearing 278° มาจาก Cambridge, Middlesex County, Massachusetts, United States [?] 9.5 km ตะวันตก bearing 269° มาจาก Somerville, Middlesex County, Massachusetts, United States 13.2 km ตะวันตก bearing 284° มาจาก Boston, Suffolk County, Massachusetts, United States 14.9 km ตะวันตกเฉียงเหนือ bearing 293° มาจาก South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-05-03 14:50:40 UTC (46d 19h53m ago) 2025-05-03 10:50:40 EDT เวลาท้องถิ่น Cambridge, United States [?]
Device:	aprs.fi: iPhone/iPad app (app, ios)
Last path:	KC1SLQ-9>APFII0 via WIDE1-1,WIDE2-1,qAR,W1DMR-4
Positions stored:	312
Other SSIDs:	KC1SLQ-i

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.