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 SP4OSK-7 - show graphs
Comment: SR4D 145.7875 67Hz
Mic-E message: Committed
Location: 54°04.83' N 21°21.62' E - locator KO04QB39FH - show map
1.1 km Northwest bearing 293° from Kętrzyn, Powiat kętrzyński, Warmian-Masurian Voivodeship, Poland [?]
8.8 km West bearing 269° from Gierłoż, Warmian-Masurian Voivodeship, Poland
88.6 km Southeast bearing 141° from Kaliningrad, Kaliningrad, Russia
158.1 km Northwest bearing 312° from Białystok, Podlasie, Poland
Last position: 2025-06-30 19:10:03 UTC (7h39m ago)
2025-06-30 21:10:03 CEST local time at Kętrzyn, Poland [?]
Altitude: 100 m
Course: 230°
Speed: 0 km/h
Device: Yaesu: FT5D (ht)
Last path: SP4OSK-7>5TPT83 via WIDE1-1,WIDE2-1,qAR,SP4OSK-1 (good)
Positions stored: 795
Other SSIDs: SP4OSK-1 SP4OSK-10 SP4OSK
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