Comment:	aprs.fi iOS
Location:	42°04.98' N 87°56.04' W - locator EN62AB79WV - show map 1.4 km South bearing 168° from Prospect Heights, Cook County, Illinois, United States [?] 3.9 km East bearing 99° from Arlington Heights, Cook County, Illinois, United States 34.9 km Northwest bearing 318° from Chicago, Cook County, Illinois, United States 106.2 km South bearing 181° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-08-11 23:12:56 UTC (21d 11h44m ago) 2025-08-11 18:12:56 CDT local time at Prospect Heights, United States [?]
Altitude:	204 m
Course:	28°
Speed:	5 km/h
Last path:	N9JDI>aprs.fi via aprsfi-iOS
Positions stored:	4
Other SSIDs:	N9JDI-9 N9JDI-5 N9JDI-7

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.