Comment:	144.390MHz https://aprsdro
Location:	42°20.91' N 88°26.09' W - locator EN52SI73TP - show map 3.9 km North bearing 17° from Woodstock, McHenry County, Illinois, United States [?] 7.2 km Northwest bearing 295° from Bull Valley, McHenry County, Illinois, United States 85.2 km Northwest bearing 311° from Chicago, Cook County, Illinois, United States 88.0 km Southwest bearing 210° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-06-30 11:57:17 UTC (6d 23h33m ago) 2025-06-30 06:57:17 CDT local time at Woodstock, United States [?]
Altitude:	245 m
Course:	234°
Speed:	2 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	NK9F-7>APDR16 via TCPIP*,qAC,T2FINLAND
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.