Comment:	146.39MHz https://aprsdroid.org/
Location:	34°45.03' N 86°45.71' W - locator EM64OS80NC - show map 5.8 km North bearing 348° from Madison, Madison County, Alabama, United States [?] 12.8 km Northwest bearing 305° from Redstone Arsenal, Madison County, Alabama, United States 16.2 km West bearing 278° from Huntsville, Madison County, Alabama, United States 25.8 km Northeast bearing 52° from Decatur, Morgan County, Alabama, United States
Last position:	2025-09-09 03:40:11 UTC (91d 1h5m ago) 2025-09-08 22:40:11 CDT local time at Madison, United States [?]
Device:	Unknown: Unknown
Last path:	W4ZFR-7>APRS via WIDE1-1,WIDE2-1,qAS,W4ZFR
Positions stored:	1
Other SSIDs:	W4ZFR-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.