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 BH4TDV-1 - show graphs
Comment: 51G2 4G 0.091Km 005m 0.0V S12
Location: 31°34.37' N 120°19.89' E - locator PM01DN97SL - show map
3.2 km East bearing 69° from Nanchansi, Jiangsu Sheng, China [?]
4.1 km East bearing 84° from Wuxi, Jiangsu Sheng, China
39.0 km Northwest bearing 320° from Suzhou, Jiangsu Sheng, China
113.7 km West bearing 290° from Shanghai, Shanghai Shi, China
Last position: 2025-08-24 10:22:00 UTC (7d 12h24m ago)
2025-08-24 18:22:00 CST local time at Nanchansi, China [?]
Altitude: 138 m
Course: 296°
Speed: 4 km/h
Last path: BH4TDV-1>AP51G2 via TCPIP*,qAC,T2FZ
Positions stored: 1336
Other SSIDs: BH4TDV-10 BH4TDV-7 BH4TDV-8 BH4TDV-9 BH4TDV-13
Last heard a station directly: 2025-07-17 11:47:27 UTC (45d 10h59m ago)
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