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 JO1ACA-A - show graphs
Location: 35°44.01' N 140°11.84' E - locator QM05CR36QA - show map
3.7 km Northwest bearing 300° from Sakura, Chiba, Japan [?]
6.5 km West bearing 287° from Shisui, Chiba, Japan
45.9 km East bearing 84° from Tokyo, Tōkyō, Japan
59.3 km Northeast bearing 57° from Yokohama-shi, Kanagawa, Japan
Last position: 2025-05-24 06:09:56 UTC (19h42m ago)
2025-05-24 15:09:56 JST local time at Sakura, Japan [?]
Speed: 17 km/h
Device: Icom: IC-5100 (D-Star)
Last path: JO1ACA-A>API510 via DSTAR*,qAS,JP1YJT-IS (good)
Positions stored: 15473
Other SSIDs: JO1ACA-B JO1ACA-F JO1ACA
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