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 BI4JFD - show graphs
Comment: QRZ 4.3V
Location: 37°26.17' N 121°25.21' E - locator PM07RK04KQ - show map
10.9 km South bearing 171° from Yantai, Shandong Sheng, China [?]
15.6 km West bearing 292° from Ninghai, Shandong Sheng, China
80.8 km Northeast bearing 51° from Laiyang, Shandong Sheng, China
Last position: 2025-05-10 13:07:16 UTC (4d 11h57m ago)
2025-05-10 21:07:16 CST local time at Yantai, China [?]
Last path: BI4JFD>APN000 via TCPIP*,qAC,T2TOKYO
Positions stored: 12
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