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 BI4SPT-5 - show graphs
Location: 31°04.88' N 121°16.90' E - locator PM01PB39TM - show map
3.1 km Northwest bearing 306° from Xinqiao, Shanghai Shi, China [?]
7.4 km North bearing 340° from Chedun, Shanghai Shi, China
22.9 km Southwest bearing 227° from Shanghai, Shanghai Shi, China
138.3 km Northeast bearing 50° from Hangzhou, Zhejiang Sheng, China
Last position: 2025-10-22 09:41:24 UTC (2d 5h9m ago)
2025-10-22 17:41:24 CST local time at Xinqiao, China [?]
Last path: BI4SPT-5>APN000 via TCPIP*,qAC,T2TAIWAN
Positions stored: 57
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