Location:	42°22.78' N 88°20.96' W - locator EN52TJ81BC - show map 6.6 km North bearing 4° from Bull Valley, McHenry County, Illinois, United States [?] 10.9 km Northeast bearing 48° from Woodstock, McHenry County, Illinois, United States 81.7 km Southwest bearing 206° from Milwaukee, Milwaukee County, Wisconsin, United States 82.4 km Northwest bearing 316° from Chicago, Cook County, Illinois, United States
Last position:	2026-02-23 23:18:08 UTC (3m59s ago) 2026-02-23 17:18:08 CST local time at Bull Valley, United States [?]
Last WX report:	2026-02-23 23:18:08 UTC (3m59s ago) – show weather charts -2.2 °C 58% 1017.4 mbar 0.9 m/s Northwest
Last path:	GW5036>APN000 via TCPXX*,qAX,CWOP-7
Positions stored:	1

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.