Source callsign:	W9BTW-S
Comment:	70cm Voice (D-Star) 439.55000MHz +0.0000MHz
Location:	42°03.61' N 87°49.01' W - locator EN62CB14XK - show map 6.2 km Northeast bearing 62° from Des Plaines, Cook County, Illinois, United States [?] 10.0 km East bearing 94° from Mount Prospect, Cook County, Illinois, United States 27.1 km Northwest bearing 330° from Chicago, Cook County, Illinois, United States 109.0 km South bearing 176° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-03-10 16:27:50 UTC (287d 11h37m ago) 2025-03-10 11:27:50 CDT local time at Des Plaines, United States [?]
Altitude:	3 m
Last path:	W9BTW-S>APDG01 via TCPIP*,qAC,W9BTW-GS
Positions stored:	6

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.