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 JK1BBJ-10 - show graphs
Comment: RX 144.66MHz/144.64MHz Direwolf+YAAC
Location: 35°46.07' N 140°01.91' E - locator QM05AS34TG - show map
12.0 km East bearing 98° from Matsudo, Chiba, Japan [?]
15.2 km Southeast bearing 130° from Nagareyama, Chiba, Japan
31.9 km East bearing 74° from Tokyo, Tōkyō, Japan
50.0 km Northeast bearing 45° from Yokohama-shi, Kanagawa, Japan
Last position: 2025-08-30 02:25:22 UTC (2d 14h28m ago)
2025-08-30 11:25:22 JST local time at Matsudo, Japan [?]
Device: KA2DDO: YAAC (software)
Last path: JK1BBJ-10>APJYC1 via TCPIP*,qAC,T2TOKYO
Positions stored: 1
Other SSIDs: JK1BBJ-7
Last heard a station directly: 2025-08-29 12:44:02 UTC (3d 4h9m ago)
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