Comment:	aprs.fi for iOS
Location:	34°45.30' N 86°43.60' W - locator EM64PS21TE - show map 6.5 km North bearing 18° from Madison, Madison County, Alabama, United States [?] 10.7 km Northwest bearing 318° from Redstone Arsenal, Madison County, Alabama, United States 13.1 km West bearing 282° from Huntsville, Madison County, Alabama, United States 28.7 km Northeast bearing 55° from Decatur, Morgan County, Alabama, United States
Last position:	2025-08-17 17:56:04 UTC (26s ago) 2025-08-17 12:56:04 CDT local time at Madison, United States [?]
Altitude:	206 m
Position ambiguous:	Precision reduced at transmitter by 1 digits, position resolution approximately 185.2 m.
Course:	77°
Speed:	69 km/h
Last path:	NF4L-12>aprs.fi via aprsfi-iOS
Positions stored:	74863
Other SSIDs:	NF4L-D NF4L NF4L-1

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.