Comment:	Boston Marathon via aprs.fi
Location:	42°18.78' N 71°16.47' W - locator FN42IH75BC - show map 4.7 km Northwest bearing 314° from Needham, Norfolk County, Massachusetts, United States [?] 7.5 km North bearing 5° from Dover, Norfolk County, Massachusetts, United States 18.3 km West bearing 254° from Boston, Suffolk County, Massachusetts, United States 18.6 km West bearing 263° from South Boston, Suffolk County, Massachusetts, United States
Last position:	2025-04-21 22:53:40 UTC (265d 5h58m ago) 2025-04-21 18:53:40 EDT local time at Needham, United States [?]
Altitude:	46 m
Course:	63°
Speed:	0 km/h
Last path:	SWEEP-12>aprs.fi via aprsfi-iOS
Positions stored:	61
Other SSIDs:	SWEEP-1 SWEEP

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.