Mic-E message:	In service
Location:	42°13.59' N 88°18.20' W - locator EN52UF34OI - show map 1.9 km Southeast bearing 147° from Crystal Lake, McHenry County, Illinois, United States [?] 5.4 km Southwest bearing 246° from Oakwood Hills, McHenry County, Illinois, United States 68.2 km Northwest bearing 308° from Chicago, Cook County, Illinois, United States 95.9 km South bearing 200° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-06-24 17:24:59 UTC (15d 2h9m ago) 2025-06-24 12:24:59 CDT local time at Crystal Lake, United States [?]
Altitude:	282 m
Course:	144°
Speed:	11 km/h
Device:	Yaesu: FTM-510D (rig)
Last path:	WB9PDX-9>T2QS5Y via qAO,N9MXT-1
Positions stored:	1666
Other SSIDs:	WB9PDX

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.