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 SP5SJR-5 - show graphs
Location: 52°18.67' N 21°08.92' E - locator KO02NH74UQ - show map
3.2 km East bearing 109° from Marki, Powiat wołomiński, Masovian Voivodeship, Poland [?]
8.1 km South bearing 183° from Słupno, Powiat wołomiński, Masovian Voivodeship, Poland
13.0 km Northeast bearing 46° from Warsaw, Masovian Voivodeship, Poland
130.8 km Northeast bearing 61° from Łódź, Łódź Voivodeship, Poland
Last position: 2025-11-20 16:45:34 UTC (2d 20h15m ago)
2025-11-20 17:45:34 CET local time at Marki, Poland [?]
Course: 313°
Speed: 30 km/h
Last path: SP5SJR-5>APN000 via WIDE2-1,qAO,SR5WIL (good)
Positions stored: 4208
Other SSIDs: SP5SJR-N SP5SJR SP5SJR-7 SP5SJR-Y
Stations which heard SP5SJR-5 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