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 JS1SPJ-7 - show graphs
Mic-E message: In service
Location: 35°30.35' N 139°36.55' E - locator PM95TM31CJ - show map
7.1 km Northwest bearing 335° from Yokohama-shi, Kanagawa, Japan [?]
9.9 km West bearing 261° from Kawasaki, Kanagawa, Japan
21.7 km South bearing 200° from Tokyo, Tōkyō, Japan
Last position: 2025-04-27 10:32:58 UTC (11d 21h24m ago)
2025-04-27 19:32:58 JST local time at Yokohama-shi, Japan [?]
Altitude: 37 m
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course: 312°
Speed: 0 km/h
Device: Yaesu: FT5D (ht)
Last path: JS1SPJ-7>S5SPSL via JS1YAB-4*,qAO,JN1ARX-6 (good)
Positions stored: 1517
Other SSIDs: JS1SPJ-5
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