Comment:	Chicago Spy Radio | ADS-B Ground Station
Last status:	KB9IQX-4 (dradis-ord01) 19:24:07
Location:	41°57.59' N 87°47.96' W - locator EN61CX40BI - show map 1.1 km Southeast bearing 140° from Harwood Heights, Cook County, Illinois, United States [?] 2.3 km East bearing 100° from Norridge, Cook County, Illinois, United States 17.4 km Northwest bearing 315° from Chicago, Cook County, Illinois, United States 120.2 km South bearing 176° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-06-08 02:04:02 UTC (24m30s ago) 2025-06-07 21:04:02 CDT local time at Harwood Heights, United States [?]
Altitude:	200 m
Last path:	KB9IQX-4>APN100 via TCPIP*,qAS,KB9IQX
Positions stored:	1
Other SSIDs:	KB9IQX-WX KB9IQX-L1 KB9IQX-L4 KB9IQX-7 KB9IQX-5 KB9IQX-2

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.