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 JA1MST-C - show graphs
Location: 34°36.73' N 134°08.88' E - locator PM74BO76SW - show map
14.7 km North bearing 347° from Tonoshō, Kagawa, Japan [?]
20.2 km East bearing 106° from Okayama-shi, Okayama, Japan
95.0 km West bearing 265° from Kōbe-shi, Hyōgo, Japan
Last position: 2025-04-26 01:07:15 UTC (13d 9h5m ago)
2025-04-26 10:07:15 JST local time at Tonoshō, Japan [?]
Altitude: -2 m
Course: 214°
Speed: 0 km/h
Device: Icom: IC-7100 (D-Star)
Last path: JA1MST-C>API710 via DSTAR*,qAS,JP4YEF-IS (good)
Positions stored: 151
Other SSIDs: JA1MST-A
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