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 BI4RBP-9 - show graphs
Comment: 51G3 A0003.2Km 9.2V 35.5C 1008.8Pa S16 51G3
Mic-E message: Returning
Last status: APRS-51G3-4K-20181229
Location: 32°51.77' N 120°18.87' E - locator PM02DU77RB - show map
1.3 km North bearing 22° from Dongtai, Jiangsu Sheng, China [?]
6.1 km Northwest bearing 327° from Sanzao, Jiangsu Sheng, China
106.4 km Northwest bearing 331° from Nantong, Jiangsu Sheng, China
124.3 km North bearing 15° from Changzhou, Jiangsu Sheng, China
Last position: 2025-06-10 11:03:34 UTC (10h21m ago)
2025-06-10 19:03:34 CST local time at Dongtai, China [?]
Altitude: 17 m
Course:
Speed: 0 km/h
Device: Unknown: Other Mic-E
Last path: BI4RBP-9>S25QW7 via TCPIP*,qAC,T2TAIWAN
Positions stored: 149809
Other SSIDs: BI4RBP-15 BI4RBP-8
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