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 JF0SWF - show graphs
Location: 37°53.37' N 139°01.31' E - locator PM97MV23OL - show map
1.4 km South bearing 186° from Niigata-shi, Niigata, Japan [?]
8.7 km West bearing 287° from Kameda, Niigata, Japan
131.6 km Northwest bearing 295° from Kōriyama, Fukushima, Japan
Last position: 2025-12-13 10:35:30 UTC (13h15m ago)
2025-12-13 19:35:30 JST local time at Niigata-shi, Japan [?]
Course: 268°
Speed: 9 km/h
Device: Icom: IC-51 (D-Star)
Last path: JF0SWF>API51 via DSTAR*,qAS,JP7YER-IS (good)
Positions stored: 8
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