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 KP4UZ-7 - show graphs
Mic-E message: In service
Location: 34°43.61' N 86°35.51' W - locator EM64QR84XK - show map
654.7 m Southwest bearing 233° from Huntsville, Madison County, Alabama, United States [?]
7.0 km Northeast bearing 47° from Redstone Arsenal, Madison County, Alabama, United States
38.2 km East bearing 69° from Decatur, Morgan County, Alabama, United States
Last position: 2025-08-15 13:35:36 UTC (16d 18h11m ago)
2025-08-15 08:35:36 CDT local time at Huntsville, United States [?]
Course: 147°
Speed: 0 km/h
Device: Kenwood: TH-D75 (ht)
Last path: KP4UZ-7>S4TS6Q via WIDE1-1,WIDE2-1,qAR,N8DEU-7 (good)
Positions stored: 1390
Other SSIDs: KP4UZ-2 KP4UZ-10 KP4UZ-9 KP4UZ KP4UZ-5
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