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 KO4TNL-9 - show graphs
Comment: 444.075MHz C103 +500 Scott - KO4TNL Mobile
Mic-E message: Special
Location: 28°21.81' N 81°34.01' W - locator EL98FI17XF - show map
5.4 km Northwest bearing 322° from Celebration, Osceola County, Florida, United States [?]
13.5 km North bearing 360° from Loughman, Polk County, Florida, United States
98.8 km Northeast bearing 62° from Tampa, Hillsborough County, Florida, United States
127.4 km Northeast bearing 59° from Saint Petersburg, Pinellas County, Florida, United States
Last position: 2025-08-25 12:07:06 UTC (7d 10h29m ago)
2025-08-25 08:07:06 EDT local time at Celebration, United States [?]
Altitude: 40 m
Course: 263°
Speed: 56 km/h
Device: Yaesu: FTM-500D (rig)
Last path: KO4TNL-9>2X2Q8Q via qAR,WC4PEM-14
Positions stored: 3158
Other SSIDs: KO4TNL-1 KO4TNL-2 KO4TNL-3 KO4TNL-4 KO4TNL KO4TNL KO4TNL-6
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