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 SP3QDU-9 - show graphs
Comment: Henryk Ostrow MD-9600
Location: 51°38.40' N 17°49.45' E - locator JO81VP83VO - show map
2.1 km Southeast bearing 145° from Ostrów Wielkopolski, Powiat ostrowski, Greater Poland Voivodeship, Poland [?]
11.0 km Southeast bearing 142° from Raszków, Powiat ostrowski, Greater Poland Voivodeship, Poland
81.3 km Northeast bearing 42° from Wrocław, Lower Silesian Voivodeship, Poland
113.8 km West bearing 264° from Łódź, Łódź Voivodeship, Poland
Last position: 2026-01-19 08:51:19 UTC (22d 10h12m ago)
2026-01-19 09:51:19 CET local time at Ostrów Wielkopolski, Poland [?]
Device: OpenGD77: OpenGD77
Last path: SP3QDU-9>APOG77 via WIDE1-1,WIDE2-1,qAR,SR3NOW (good)
Positions stored: 79
Other SSIDs: SP3QDU-8 SP3QDU-11 SP3QDU-10 SP3QDU SP3QDU-4 SP3QDU-7 SP3QDU-2 SP3QDU-X SP3QDU-3 SP3QDU-1 SP3QDU-18 SP3QDU-5
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