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 KO4IIS-9 - show graphs
Mic-E message: En route
Location: 27°57.54' N 82°45.77' W - locator EL87OX80LD - show map
7.9 km Northeast bearing 30° from Ridgecrest, Pinellas County, Florida, United States [?]
13.5 km North bearing 12° from Seminole, Pinellas County, Florida, United States
22.5 km North bearing 339° from Saint Petersburg, Pinellas County, Florida, United States
29.9 km West bearing 273° from Tampa, Hillsborough County, Florida, United States
Last position: 2025-07-15 01:46:50 UTC (4d 9h41m ago)
2025-07-14 21:46:50 EDT local time at Ridgecrest, United States [?]
Altitude: -4 m
Course: 175°
Speed: 61 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KO4IIS-9>RW5W5T via W4ACS-1,WIDE1*,WIDE2-1,qAR,WC4PEM-8 (good)
Positions stored: 634
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