Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station KK4MQS-1 - show graphs
Comment: HP Rocket Flyer, Big Cove, Al
Location: 34°40.94' N 86°29.90' W - locator EM64SQ03ES - show map
9.6 km Southeast bearing 124° from Huntsville, Madison County, Alabama, United States [?]
13.6 km East bearing 91° from Redstone Arsenal, Madison County, Alabama, United States
115.6 km West bearing 250° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2025-05-18 14:28:23 UTC (7m14s ago)
2025-05-18 09:28:23 CDT local time at Huntsville, United States [?]
Altitude: 171 m
Last telemetry: 2023-06-18 17:15:43 UTC (699d 21h19m ago) – show telemetry
Ch 1: 515, Ch 2: 823, Ch 3: 0, Ch 4: 0, Ch 5: 0
Device: Open Source: APRSdroid (app, Android)
Last path: KK4MQS-1>APDR16 via TCPIP*,qAC,T2USANW
Positions stored: 795535
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS