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 BI4AIF-2 - show graphs
Comment: FTM-510DR
Location: 30°43.72' N 121°18.61' E - locator PM00PR74FV - show map
751.6 m Northwest bearing 322° from Jinshanwei, Shanghai Shi, China [?]
7.0 km Southwest bearing 233° from Shanyang, Shanghai Shi, China
56.6 km South bearing 194° from Shanghai, Shanghai Shi, China
120.1 km Northeast bearing 66° from Hangzhou, Zhejiang Sheng, China
Last position: 2025-07-04 01:56:14 UTC (1d 11h23m ago)
2025-07-04 09:56:14 CST local time at Jinshanwei, China [?]
Course:
Speed: 0 km/h
Device: R3ABM: BrandMeister DMR
Last path: BI4AIF-2>APBM1D via BI4AIF,DMR*,qAR,BI4AIF (good)
Positions stored: 235
Other SSIDs: BI4AIF-R BI4AIF-10 BI4AIF-Y BI4AIF
Stations which heard BI4AIF-2 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