Comment:	aprs.fi
Location:	42°06.88' N 88°01.27' W - locator EN52XC77KM - show map 4.4 km Northwest bearing 311° from Arlington Heights, Cook County, Illinois, United States [?] 7.2 km West bearing 287° from Prospect Heights, Cook County, Illinois, United States 42.5 km Northwest bearing 314° from Chicago, Cook County, Illinois, United States 103.1 km South bearing 185° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-08-16 15:31:33 UTC (6h21m ago) 2025-08-16 10:31:33 CDT local time at Arlington Heights, United States [?]
Course:	84°
Speed:	9 km/h
Last path:	N9LSF-9>aprs.fi via aprsfi-iOS
Positions stored:	8187
Other SSIDs:	N9LSF-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.