Location:	42°12.81' N 88°08.44' W - locator EN52WF31CF - show map 2.9 km Northwest bearing 313° from Knollwood, Lake County, Illinois, United States [?] 4.3 km Northwest bearing 295° from Lake Zurich, Lake County, Illinois, United States 57.2 km Northwest bearing 315° from Chicago, Cook County, Illinois, United States 93.7 km South bearing 192° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-02-16 20:07:39 UTC (25d 17h19m ago) 2025-02-16 14:07:39 CST local time at Knollwood, United States [?]
Speed:	55 km/h
Device:	Icom: IC-5100 (D-Star)
Last path:	KJ4ADV>API510 via DSTAR*,qAR,K9SA-B
Positions stored:	36
Other SSIDs:	KJ4ADV-7 KJ4ADV-9

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.