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 SP9MAI-2 - show graphs
Comment: Lora iGate/DIGI 434.855 @1k2 P=5.00V
Location: 50°50.06' N 19°17.66' E - locator JO90PU50HF - show map
12.7 km East bearing 71° from Częstochowa, Częstochowa, Silesian Voivodeship, Poland [?]
15.6 km Northeast bearing 47° from Huta Stara B, Powiat częstochowski, Silesian Voivodeship, Poland
94.4 km Northwest bearing 332° from Kraków, Lesser Poland Voivodeship, Poland
102.5 km South bearing 187° from Łódź, Łódź Voivodeship, Poland
Last position: 2025-06-28 16:13:39 UTC (44d 17h26m ago)
2025-06-28 18:13:39 CEST local time at Częstochowa, Poland [?]
Device: SQ9MDD: LoRa KISS TNC/Tracker (tracker)
Last path: SP9MAI-2>APLOX1 via TCPIP*,qAC,T2GB
Positions stored: 3
Other SSIDs: SP9MAI-10 SP9MAI-3 SP9MAI-8 SP9MAI-18 SP9MAI-7 SP9MAI-15
Last heard a station directly: 2025-07-11 17:15:33 UTC (31d 16h24m ago)
Normal receiver range estimate: 90 km (Updated: 2025-06-30 21:49:06 UTC)
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