Location:	42°19.53' N 88°17.45' W - locator EN52UH58CC - show map 5.8 km Northwest bearing 335° from Prairie Grove, McHenry County, Illinois, United States [?] 9.6 km North bearing 13° from Crystal Lake, McHenry County, Illinois, United States 74.7 km Northwest bearing 315° from Chicago, Cook County, Illinois, United States 85.3 km South bearing 202° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-08-08 16:35:31 UTC (92d 18h54m ago) 2025-08-08 11:35:31 CDT local time at Prairie Grove, United States [?]
Altitude:	255 m
Course:	0°
Speed:	0 km/h
Device:	unknown: D-Star APDPRS (D-Star)
Last path:	W1WVH>APDPRS via TCPIP*,qAC,T2PR
Positions stored:	20
Other SSIDs:	W1WVH-B

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.