Comment:	https://aprsdroid.org/
Location:	41°52.85' N 87°38.80' W - ตำแหน่ง EN61EV21JJ - show map 3.4 km เหนือ bearing 5° มาจาก Chicago, Cook County, Illinois, United States [?] 9.7 km ตะวันออกเฉียงเหนือ bearing 66° มาจาก Cicero, Cook County, Illinois, United States 57.3 km ตะวันออก bearing 76° มาจาก Aurora, Kane County, Illinois, United States
Last position:	2025-08-29 06:52:20 UTC (100d 22h3m ago) 2025-08-29 01:52:20 CDT เวลาท้องถิ่น Chicago, United States [?]
Altitude:	157 m
Device:	Open Source: APRSdroid (app, Android)
Last path:	WZ4CH-1>APDR16 via TCPIP*,qAC,T2CAWEST
Positions stored:	12
Other SSIDs:	WZ4CH-11 WZ4CH-9 WZ4CH WZ4CH-5 WZ4CH-10

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.