Location:	42°06.31' N 87°47.39' W - locator EN62CC55FF - show map 951.2 m Northwest bearing 309° from Northfield, Cook County, Illinois, United States [?] 3.9 km North bearing 358° from Glenview, Cook County, Illinois, United States 30.6 km North bearing 338° from Chicago, Cook County, Illinois, United States 104.2 km South bearing 175° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-06-03 17:04:32 UTC (11d 10h6m ago) 2025-06-03 12:04:32 CDT local time at Northfield, United States [?]
Device:	Icom: IC-51 (D-Star)
Last path:	KC9USC-7>API51 via DSTAR*,qAO,NS9RC-B
Positions stored:	5053
Other SSIDs:	KC9USC-11 KC9USC-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.