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 BH4UMN-4G - show graphs
Comment: imei:*0128 rssi:31 sat:22/33
Last status: 4G-Tracker ver0.0.35
Location: 32°13.02' N 119°23.16' E - locator OM92QF62HB - show map
4.1 km South bearing 176° from Guazhou, Jiangsu Sheng, China [?]
4.1 km North bearing 340° from Qilidian, Jiangsu Sheng, China
59.8 km East bearing 73° from Nanjing, Jiangsu Sheng, China
152.8 km Northwest bearing 312° from Suzhou, Jiangsu Sheng, China
Last position: 2025-09-30 07:57:03 UTC (16d 3h10m ago)
2025-09-30 15:57:03 CST local time at Guazhou, China [?]
Altitude: 9 m
Course: 310°
Speed: 6 km/h
Last path: BH4UMN-4G>AP4G via TCPIP*,qAC,T2CS
Positions stored: 191
Other SSIDs: BH4UMN-5
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