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 BI4PAA-1 - show graphs
Location: 37°26.30' N 121°29.29' E - locator PM07RK85NE - show map
10.4 km Northwest bearing 306° from Ninghai, Shandong Sheng, China [?]
13.1 km Southeast bearing 144° from Yantai, Shandong Sheng, China
85.7 km Northeast bearing 53° from Laiyang, Shandong Sheng, China
Last position: 2025-05-06 23:19:11 UTC (3d 15h28m ago)
2025-05-07 07:19:11 CST local time at Ninghai, China [?]
Course: 295°
Speed: 0 km/h
Last path: BI4PAA-1>APN000 via TCPIP*,qAC,T2PERTH
Positions stored: 157
Other SSIDs: BI4PAA-7 BI4PAA-9
APRS igate – Statistics for 2025-05:
Stations heard directly: 2 on radio path – show map
Last heard a station directly: 2025-05-10 14:29:54 UTC (17m55s ago)
Normal receiver range estimate: 50 km (Updated: 2025-03-29 00:12:39 UTC)
Position packets heard directly: 693 on radio path
Position packets sent to APRS-IS: 695 – show map
Stations heard directly by BI4PAA-1
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