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 BG4DUN-7 - show graphs
Comment: wechat:sh-andy0618
Location: 31°12.12' N 121°26.30' E - locator PM01RE28OL - show map
2.9 km Southwest bearing 220° from Shanghai, Shanghai Shi, China [?]
6.7 km North bearing 4° from Changqiao, Shanghai Shi, China
12.0 km Northeast bearing 30° from Minhang, Shanghai Shi, China
158.3 km Northeast bearing 50° from Hangzhou, Zhejiang Sheng, China
Last position: 2025-03-26 14:34:01 UTC (53d 12h19m ago)
2025-03-26 22:34:01 CST local time at Shanghai, China [?]
Course: 154°
Speed: 0 km/h
Device: R3ABM: BrandMeister DMR
Last path: BG4DUN-7>APBM1D via BG4DUN,DMR*,qAR,BG4DUN (good)
Positions stored: 6316
Other SSIDs: BG4DUN-R
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