Location:	42°17.75' N 88°21.00' W - locator EN52TH80AX - show map 2.8 km South bearing 171° from Bull Valley, McHenry County, Illinois, United States [?] 8.4 km East bearing 104° from Woodstock, McHenry County, Illinois, United States 76.1 km Northwest bearing 311° from Chicago, Cook County, Illinois, United States 90.2 km Southwest bearing 204° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2026-01-12 11:19:39 UTC (3m15s ago) 2026-01-12 05:19:39 CST local time at Bull Valley, United States [?]
Last WX report:	2026-01-12 11:19:39 UTC (3m15s ago) – show weather charts -3.9 °C 84% 1018.4 mbar 0.0 m/s Southwest
Last path:	EW9952>APN000 via TCPXX*,qAX,CWOP-4
Positions stored:	4

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.