Comment:	openSPOT4pro
Location:	41°58.33' N 87°40.42' W - ตำแหน่ง EN61DX93DH - show map 5.9 km ตะวันออกเฉียงใต้ bearing 128° มาจาก Lincolnwood, Cook County, Illinois, United States [?] 7.8 km ใต้ bearing 170° มาจาก Evanston, Cook County, Illinois, United States 13.7 km เหนือ bearing 352° มาจาก Chicago, Cook County, Illinois, United States 120.1 km ใต้ bearing 171° มาจาก Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-11-17 23:45:11 UTC (22d 15h1m ago) 2025-11-17 17:45:11 CST เวลาท้องถิ่น Lincolnwood, United States [?]
Altitude:	0 m
Device:	SharkRF: openSPOT4 (gadget)
Last path:	W9TRO-10>APOSB4 via TCPIP*,qAS,W9TRO
Positions stored:	94
Other SSIDs:	W9TRO-9 W9TRO-7 W9TRO W9TRO
Last heard a station directly:	2025-10-23 15:03:06 UTC (47d 23h43m ago)

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.