Comment:	Chicago Spy Radio | ADS-B Ground Station
Last status:	(kb9iqx-4) (dradis-ord01) 21:14:11
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 48.5 km Northeast bearing 63° from Aurora, Kane County, Illinois, United States
Last position:	2025-09-19 04:04:02 UTC (15m3s ago) 2025-09-18 23:04:02 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-L4 KB9IQX-WX KB9IQX-7 KB9IQX-L1 KB9IQX-5

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.