Location:	42°01.53' N 88°07.60' W - locator EN52WA46TC - show map 3.7 km West bearing 256° from Schaumburg, Cook County, Illinois, United States [?] 4.3 km Southwest bearing 244° from Hoffman Estates, Cook County, Illinois, United States 44.0 km Northwest bearing 296° from Chicago, Cook County, Illinois, United States 114.0 km South bearing 189° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-09-21 23:58:40 UTC (28d 12h38m ago) 2025-09-21 18:58:40 CDT local time at Schaumburg, United States [?]
Speed:	64 km/h
Device:	Icom: IC-5100 (D-Star)
Last path:	KJ4ADV>API510 via DSTAR*,qAO,NS9RC-B
Positions stored:	42
Other SSIDs:	KJ4ADV-9 KJ4ADV-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.