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 BI4VNM-9 - show graphs
Comment: 51G3 A0000.0Km 10.3V 29.6C 1003.5Pa S08 ËÕB0F73A Aprs 51G3
Mic-E message: Returning
Last status: APRS-51G3-4K-220102
Location: 31°55.60' N 120°17.94' E - locator PM01DW52VJ - show map
2.8 km Northeast bearing 34° from Yaosai, Jiangsu Sheng, China [?]
3.8 km Northeast bearing 63° from Chengjiang, Jiangsu Sheng, China
74.7 km North bearing 338° from Suzhou, Jiangsu Sheng, China
134.8 km Northwest bearing 306° from Shanghai, Shanghai Shi, China
Last position: 2025-05-31 17:38:21 UTC (20h28m ago)
2025-06-01 01:38:21 CST local time at Yaosai, China [?]
Altitude: 75 m
Course: 79°
Speed: 0 km/h
Device: Unknown: Other Mic-E
Last path: BI4VNM-9>S15UV0 via TCPIP*,qAC,T2TAIWAN
Positions stored: 34921
Other SSIDs: BI4VNM-10 BI4VNM-8 BI4VNM-5 BI4VNM-2 BI4VNM-7 BI4VNM BI4VNM BI4VNM BI4VNM-1
Last heard a station directly: 2025-05-04 01:32:41 UTC (28d 12h34m 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