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 KO4JZU-R - show graphs
Comment: 70cm MMDVM Voice (C4FM) 438.80000MHz -0.6000MHz, KO4JZU_Pi-Star_RPT
Location: 36°33.15' N 87°20.66' W - locator EM66HN82QO - show map
2.9 km Northeast bearing 28° from Clarksville, Montgomery County, Tennessee, United States [?]
19.1 km Southwest bearing 236° from Guthrie, Todd County, Kentucky, United States
66.0 km Northwest bearing 311° from Nashville, Davidson County, Tennessee, United States
Last position: 2025-05-15 00:41:16 UTC (6h7m ago)
2025-05-14 19:41:16 CDT local time at Clarksville, United States [?]
Device: Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path: KO4JZU-R>APDG03 via TCPIP*,qAC,KO4JZU-RS
Positions stored: 3
Other SSIDs: KO4JZU-Y KO4JZU-N KO4JZU-10
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