Source callsign:	W9UND-S
Comment:	70cm Voice (D-Star) 440.50000MHz +0.0000MHz
Location:	41°57.94' N 87°42.56' W - ตำแหน่ง EN61DX41VS - show map 4.6 km ใต้ bearing 158° มาจาก Lincolnwood, Cook County, Illinois, United States [?] 8.5 km ใต้ bearing 191° มาจาก Evanston, Cook County, Illinois, United States 13.8 km เหนือ bearing 339° มาจาก Chicago, Cook County, Illinois, United States 120.3 km ใต้ bearing 172° มาจาก Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-11-30 22:36:26 UTC (9d 14h6m ago) 2025-11-30 16:36:26 CST เวลาท้องถิ่น Lincolnwood, United States [?]
Altitude:	3 m
Last path:	W9UND-S>APDG01 via TCPIP*,qAC,W9UND-GS
Positions stored:	1

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.