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 BI1IYW-9 - show graphs
Comment: 436.100MHz Welcome to Connect.
Mic-E message: Off duty
Location: 39°56.05' N 116°48.55' E - locator OM89JW74CE - show map
18.2 km East bearing 80° from Tongzhou, Beijing, China [?]
25.4 km Southeast bearing 147° from Shunyi, Beijing, China
35.2 km East bearing 85° from Beijing, Beijing, China
93.5 km North bearing 340° from Tianjin, Tianjin Shi, China
Last position: 2025-11-02 05:28:43 UTC (1d 9h55m ago)
2025-11-02 13:28:43 CST local time at Tongzhou, China [?]
Altitude: 45 m
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course: 277°
Speed: 0 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: BI1IYW-9>SYUVPL via BY1AS-3*,WIDE1*,WIDE2-1,qAS,BH1TZO-10 (good)
Positions stored: 179
Stations which heard BI1IYW-9 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