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 JO4IYK-9 - show graphs
Mic-E message: In service
Location: 34°39.37' N 133°55.56' E - locator PM64XP17CL - show map
1.0 km Southwest bearing 233° from Okayama-shi, Okayama, Japan [?]
16.7 km Northeast bearing 61° from Kurashiki, Okayama, Japan
114.9 km West bearing 268° from Kōbe-shi, Hyōgo, Japan
Last position: 2026-01-11 05:33:31 UTC (2d 3h38m ago)
2026-01-11 14:33:31 JST local time at Okayama-shi, Japan [?]
Altitude: 10 m
Course: 234°
Speed: 24 km/h
Device: Kenwood: TH-D75 (ht)
Last path: JO4IYK-9>S4SYS7 via WIDE1-1,qAO,JE4YOQ-10 (good)
Positions stored: 1357
Other SSIDs: JO4IYK-i
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