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*
AIS vessel JM8UTW - show graphs
Callsign: JM8UTW
Location: 41°52.01' N 139°57.10' E - locator PN91XU48EA - show map
58.1 km West bearing 276° from Kamiiso, Hokkaidō, Japan [?]
60.6 km West bearing 269° from Nanae, Hokkaidō, Japan
65.8 km West bearing 279° from Hakodate, Hokkaidō, Japan
133.2 km Northwest bearing 331° from Aomori-shi, Aomori, Japan
Last position: 2025-05-16 11:42:48 UTC (6d 13h44m ago)
2025-05-16 20:42:48 JST local time at Kamiiso, Japan [?]
Device: Icom: unknown (D-Star)
Last path: JM8UTW>API705 via DSTAR*,qAS,JP8YEA-IS
Positions stored: 22
Last heard a station directly: 2025-01-07 11:39:20 UTC (135d 13h47m ago)
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