Source callsign:	W9SUS-S
Comment:	70cm Voice (D-Star) 440.98750MHz +0.0000MHz
Location:	41°39.90' N 87°37.72' W - locator EN61EP49NO - show map 2.7 km East bearing 85° from Calumet Park, Cook County, Illinois, United States [?] 3.4 km Northwest bearing 328° from Dolton, Cook County, Illinois, United States 20.6 km South bearing 175° from Chicago, Cook County, Illinois, United States 58.3 km East bearing 100° from Aurora, Kane County, Illinois, United States
Last position:	2025-12-07 04:18:54 UTC (9m11s ago) 2025-12-06 22:18:54 CST local time at Calumet Park, United States [?]
Altitude:	3 m
Last path:	W9SUS-S>APDG01 via TCPIP*,qAC,W9SUS-GS
Positions stored:	414

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.