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 SQ4AFJ-4 - show graphs
Comment: 438.750MHz t067 -760 FTM-510DE test baza KO04QB_5
Mic-E message: Off duty
Location: 54°04.50' N 21°22.03' E - locator KO04QB48BA - show map
563.1 m West bearing 250° from Kętrzyn, Powiat kętrzyński, Warmian-Masurian Voivodeship, Poland [?]
8.4 km West bearing 265° from Gierłoż, Warmian-Masurian Voivodeship, Poland
89.4 km Southeast bearing 141° from Kaliningrad, Kaliningrad, Russia
157.4 km Northwest bearing 312° from Białystok, Podlasie, Poland
Last position: 2025-05-10 19:23:43 UTC (1d 2h40m ago)
2025-05-10 21:23:43 CEST local time at Kętrzyn, Poland [?]
Course:
Speed: 0 km/h
Device: Unknown: Other Mic-E
Last path: SQ4AFJ-4>UTPT50 via WIDE1-1,WIDE2-1,qAR,SR4NWU (good)
Positions stored: 1
Other SSIDs: SQ4AFJ-7 SQ4AFJ-18 SQ4AFJ-10 SQ4AFJ
Stations which heard SQ4AFJ-4 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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