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 SQ4CTP - show graphs
Location: 53°07.25' N 23°12.96' E - locator KO13OC58WX - show map
4.6 km East bearing 107° from Białystok, Podlasie, Poland [?]
8.7 km South bearing 176° from Wasilków, Powiat białostocki, Podlasie, Poland
74.9 km Southwest bearing 213° from Hrodna, Hrodzyenskaya Voblastsʼ, Belarus
118.1 km North bearing 345° from Brest, Brestskaya Voblastsʼ, Belarus
Last position: 2025-09-07 19:43:30 UTC (12d 1h21m ago)
2025-09-07 21:43:30 CEST local time at Białystok, Poland [?]
Device: Open Source: Xastir (software, Linux/Unix)
Last path: SQ4CTP>APX223 via WIDE2-2,qAS,SR4DIG (good)
Positions stored: 1156
Last heard a station directly: 2024-12-26 22:50:34 UTC (266d 22h14m ago)
Stations which heard SQ4CTP 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