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 BD4XUI-9 - show graphs
Comment: DM-9100 APRS
Location: 31°47.82' N 119°59.15' E - locator OM91XT81HG - show map
2.4 km Northeast bearing 50° from Changzhou, Jiangsu Sheng, China [?]
6.5 km North bearing 3° from Hutang, Jiangsu Sheng, China
79.6 km Northwest bearing 314° from Suzhou, Jiangsu Sheng, China
117.7 km East bearing 104° from Nanjing, Jiangsu Sheng, China
Last position: 2025-02-10 09:43:41 UTC (5h5m ago)
2025-02-10 17:43:41 CST local time at Changzhou, China [?]
Course: 134°
Speed: 43 km/h
Device: OpenGD77: OpenGD77
Last path: BD4XUI-9>APOG77 via BI4WRP-8*,WIDE1,WIDE2-1,qAO,BI4WRP-8 (good)
Positions stored: 1645
Other SSIDs: BD4XUI-7 BD4XUI-2
Stations which heard BD4XUI-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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