Comment:	K4CHL Chelsea Public Service day
Location:	33°20.42' N 86°37.88' W - ตำแหน่ง EM63QI41FQ - show map 102.3 m ตะวันตก bearing 284° มาจาก Chelsea, Shelby County, Alabama, United States [?] 8.9 km ตะวันตก bearing 263° มาจาก Westover, Shelby County, Alabama, United States 25.6 km ตะวันออกเฉียงใต้ bearing 142° มาจาก Birmingham, Jefferson County, Alabama, United States 112.5 km เหนือ bearing 344° มาจาก Montgomery, Montgomery County, Alabama, United States
Last position:	2025-06-21 16:49:05 UTC (24d 5h23m ago) 2025-06-21 11:49:05 CDT เวลาท้องถิ่น Chelsea, United States [?]
Altitude:	126 m
Device:	Open Source: APRSdroid (app, Android)
Last path:	AE4ON-7>APDR16 via WIDE1-1,WIDE2-2,qAO,N2OTX-7
Positions stored:	3

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.