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 SP7THR-31 - show graphs
Comment: WSPR 20M (SP7THR/1)
Location: 49°26.25' N 19°47.50' E - locator JN99VK55AA - show map
4.3 km West bearing 271° from Czarny Dunajec, Powiat nowotarski, Lesser Poland Voivodeship, Poland [?]
4.7 km South bearing 159° from Piekielnik, Powiat nowotarski, Lesser Poland Voivodeship, Poland
72.3 km South bearing 187° from Kraków, Lesser Poland Voivodeship, Poland
106.4 km Southeast bearing 149° from Katowice, Silesian Voivodeship, Poland
Last position: 2025-09-09 09:38:40 UTC (50d 13h16m ago)
2025-09-09 11:38:40 CEST local time at Czarny Dunajec, Poland [?]
Altitude: 8960 m
Course:
Speed: 0 km/h
Device: Unknown: Experimental
Last path: SP7THR-31>APZHUB via NOHUB,qAS,SP7THR (good)
Positions stored: 8
Other SSIDs: SP7THR-12 SP7THR-10 SP7THR SP7THR-7 SP7THR-11 SP7THR-9 SP7THR-6 SP7THR-5 SP7THR-4 SP7THR-3 SP7THR-13 SP7THR-2 SP7THR-1 SP7THR-15 SP7THR-8 SP7THR-45
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