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 BG4CLH-6 - show graphs
Comment: BG4CLH_6
Mic-E message: Off duty
Location: 31°15.00' N 121°35.00' E - locator PM01SG90XA - show map
6.2 km East bearing 102° from Yangpu, Shanghai Shi, China [?]
8.9 km East bearing 90° from Hongkou, Shanghai Shi, China
12.3 km East bearing 75° from Shanghai, Shanghai Shi, China
94.0 km East bearing 93° from Suzhou, Jiangsu Sheng, China
Last position: 2025-11-20 12:18:25 UTC (16d 17h43m ago)
2025-11-20 20:18:25 CST local time at Yangpu, China [?]
Position ambiguous: Precision reduced at transmitter by 3 digits, position resolution approximately 18.5 km.
Course:
Speed: 0 km/h
Device: Unknown: Other Mic-E
Last path: BG4CLH-6>SQQZZL via WIDE1-1,qAR,BI4ALY-11 (good)
Positions stored: 1
Other SSIDs: BG4CLH-B BG4CLH-7 BG4CLH-5G BG4CLH-9 BG4CLH-N BG4CLH-R BG4CLH-8 BG4CLH BG4CLH-10 BG4CLH-5 BG4CLH-4 BG4CLH-3
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