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 JO4ESJ-9 - show graphs
Comment: 439.940MHz
Mic-E message: Off duty
Location: 35°10.39' N 133°24.71' E - locator PM65QE91KN - show map
21.7 km North bearing 347° from Niimi, Okayama, Japan [?]
29.8 km South bearing 166° from Yonago, Tottori, Japan
74.2 km Northwest bearing 320° from Okayama-shi, Okayama, Japan
122.5 km Northeast bearing 45° from Hiroshima-shi, Hiroshima, Japan
Last position: 2025-08-30 23:16:07 UTC (1d 2h40m ago)
2025-08-31 08:16:07 JST local time at Niimi, Japan [?]
Altitude: 631 m
Course:
Speed: 59 km/h
Device: Yaesu: FTM-500D (rig)
Last path: JO4ESJ-9>SUQPS9 via JA4YYF-2*,qAR,JA4YZK-10 (good)
Positions stored: 1243
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