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 KO4IYW-6 - show graphs
Comment: 146.490MHz TOFF Green
Location: 35°25.35' N 84°42.64' W - locator EM75PK41RJ - show map
10.9 km West bearing 258° from Athens, McMinn County, Tennessee, United States [?]
12.5 km Southeast bearing 145° from Decatur, Meigs County, Tennessee, United States
68.6 km Northeast bearing 52° from Chattanooga, Hamilton County, Tennessee, United States
93.0 km Southwest bearing 230° from Knoxville, Knox County, Tennessee, United States
Last position: 2025-06-27 15:47:00 UTC (18d 21h50m ago)
2025-06-27 11:47:00 EDT local time at Athens, United States [?]
Device: KA2DDO: YAAC (software)
Last path: KO4IYW-6>APJYC1 via WIDE1-1,WIDE2-1,qAR,KG4FZR-3 (good)
Positions stored: 25
Other SSIDs: KO4IYW-9 KO4IYW-10 KO4IYW KO4IYW-7
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