Location:	34°38.67' N 86°27.98' W - locator EM64SP44AQ - show map 14.5 km Southeast bearing 131° from Huntsville, Madison County, Alabama, United States [?] 17.1 km East bearing 105° from Redstone Arsenal, Madison County, Alabama, United States 114.5 km Southwest bearing 247° from Chattanooga, Hamilton County, Tennessee, United States
Last position:	2025-10-04 21:40:42 UTC (26d 20h2m ago) 2025-10-04 16:40:42 CDT local time at Huntsville, United States [?]
Altitude:	144 m
Speed:	5 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	K4MJR-5>APDR16 via TCPIP*,qAC,T2BIO
Positions stored:	867
Other SSIDs:	K4MJR-9

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.