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 K4OC - show graphs
Comment: Winlink 8.22V????????`?h??@@`????b@b????d@c?=3435.88N\08628.87WO030/000Winlink 8.22V
Location: 34°35.88' N 86°28.87' W - locator EM64SO23GM - show map
2.3 km Northwest bearing 298° from Owens Cross Roads, Madison County, Alabama, United States [?]
17.6 km Southeast bearing 147° from Huntsville, Madison County, Alabama, United States
18.0 km Southeast bearing 122° from Redstone Arsenal, Madison County, Alabama, United States
117.9 km Southwest bearing 245° from Chattanooga, Hamilton County, Tennessee, United States
Last position: 2025-06-22 23:52:27 UTC (14d 8h53m ago)
2025-06-22 18:52:27 CDT local time at Owens Cross Roads, United States [?]
Course: 30°
Speed: 0 km/h
Device: BTECH: UV-PRO (ht)
Last path: K4OC>APBTUV via WIDE1-1,WIDE2-1,qAR,N4WGY-7 (good)
Positions stored: 1313
Other SSIDs: K4OC-7 K4OC-5 K4OC-10
Last heard a station directly: 2025-05-31 19:58:46 UTC (36d 12h47m ago)
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