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 BD3MDU-7 - show graphs
Comment: VR_N76 73! 7.58V
Location: 39°58.33' N 116°25.97' E - locator OM89FX13WH - show map
7.8 km Northeast bearing 23° from Beijing, Beijing, China [?]
16.0 km Northwest bearing 298° from Tongzhou, Beijing, China
112.1 km Northwest bearing 326° from Tianjin, Tianjin Shi, China
Last position: 2025-10-28 13:57:03 UTC (11d 8h58m ago)
2025-10-28 21:57:03 CST local time at Beijing, China [?]
Last path: BD3MDU-7>APN000 via WIDE1-1,WIDE2-1,qAS,BG1VIS-10 (good)
Positions stored: 39
Other SSIDs: BD3MDU-10 BD3MDU-9
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