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 BI1WAI-7 - show graphs
Comment: 439.475MHz 8.3V
Location: 39°55.58' N 116°25.36' E - locator OM89FW02RH - show map
3.0 km Northeast bearing 46° from Beijing, Beijing, China [?]
28.2 km East bearing 93° from Mentougou, Beijing, China
108.5 km Northwest bearing 324° from Tianjin, Tianjin Shi, China
Last position: 2025-04-21 02:22:56 UTC (101d 18h39m ago)
2025-04-21 10:22:56 CST local time at Beijing, China [?]
Course: 265°
Speed: 4 km/h
Last path: BI1WAI-7>APN000 via TCPIP*,qAC,T2OSAKA
Positions stored: 217
Other SSIDs: BI1WAI-9 BI1WAI
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