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 BH4USR-10 - show graphs
Comment: E1[海安市无线电协会 APRS IGATE DIGI 144.640]
Location: 32°31.89' N 120°30.13' E - locator PM02GM07GN - show map
3.3 km South bearing 167° from Yeyatan, Jiangsu Sheng, China [?]
5.1 km East bearing 105° from Hai’an, Jiangsu Sheng, China
100.9 km North bearing 347° from Changshu City, Jiangsu Sheng, China
108.8 km North bearing 11° from Wuxi, Jiangsu Sheng, China
Last position: 2025-12-31 15:06:50 UTC (31m50s ago)
2025-12-31 23:06:50 CST local time at Yeyatan, China [?]
Device: Telemetry devices
Last path: BH4USR-10>APE32I via TCPIP*,qAC,T2FZ
Positions stored: 50
Other SSIDs: BH4USR-15 BH4USR-9 BH4USR-7 BH4USR-i BH4USR-1 BH4USR-8
APRS igate – Statistics for 2025-12:
Stations heard directly: 19 on radio path – show map
Last heard a station directly: 2025-12-31 15:06:42 UTC (31m58s ago)
Normal receiver range estimate: 70 km (Updated: 2025-12-31 14:45:38 UTC)
Position packets heard directly: 3774 on radio path
Position packets sent to APRS-IS: 219 – show map
Stations which heard BH4USR-10 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.
Stations heard directly by BH4USR-10
callsign pkts first heard - UTC last heard longest (rx => tx) longest at - UTC

Only stations from which a position packet has been heard 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