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 JG1RBF-9 - show graphs
Comment: 439.340MHz T088 -500 RX
Mic-E message: In service
Location: 35°34.52' N 139°25.50' E - locator PM95RN18AB - show map
4.5 km Northwest bearing 329° from Machida, Tōkyō, Japan [?]
10.5 km North bearing 348° from Minami-rinkan, Kanagawa, Japan
24.2 km Northwest bearing 306° from Yokohama-shi, Kanagawa, Japan
27.2 km Southwest bearing 242° from Tokyo, Tōkyō, Japan
Last position: 2025-10-31 10:15:54 UTC (4d 7h25m ago)
2025-10-31 19:15:54 JST local time at Machida, Japan [?]
Altitude: 104 m
Course: 101°
Speed: 4 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: JG1RBF-9>S5STU2 via JS1YAB-2*,qAR,JQ1YDA-10 (good)
Positions stored: 639262
Other SSIDs: JG1RBF-7 JG1RBF JG1RBF-D JG1RBF-C
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