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 7K4IZS-5 - show graphs
Comment: NTTdocomo L-03K
Location: 35°33.24' N 139°32.66' E - locator PM95SN52HX - show map
5.9 miles South bearing 197° from Komae, Tōkyō, Japan [?]
7.0 miles South bearing 184° from Chōfu, Tōkyō, Japan
9.2 miles Northwest bearing 323° from Yokohama-shi, Kanagawa, Japan
12.5 miles Southwest bearing 222° from Tokyo, Tōkyō, Japan
Last position: 2025-01-18 07:20:46 EST (6d 15h58m ago)
2025-01-18 21:20:46 JST local time at Komae, Japan [?]
Altitude: 308 ft
Course: 60°
Speed: 27 MPH
Device: Open Source: APRSdroid (app, Android)
Last path: 7K4IZS-5>APDR16 via TCPIP*,qAC,T2TOKYO
Positions stored: 15226
Stations near current position of 7K4IZS-5 - show more
callsign distance last heard - EST      callsign distance last heard - EST
JA4FHZ-10.6 miles 331°2025-01-12 00:24:13 FW72541.1 miles 344°2025-01-24 23:18:20
JA9FAL2.0 miles 211°2025-01-24 16:39:36 JR4ENY-102.4 miles 32°2025-01-23 02:34:11
JR4ENY-12.4 miles 35°2025-01-24 22:59:22 JR1NVW2.4 miles 158°2025-01-04 03:06:55
JA1VBU-72.5 miles 150°2025-01-18 23:56:31 JA6IJW-72.5 miles 182°2025-01-24 20:43:52
JH1RUT2.6 miles 29°2025-01-21 03:05:44 JH1EIH-A2.9 miles 63°2025-01-10 23:57:23
JA0EWD-A2.9 miles 111°2025-01-20 04:09:18 JE1XUZ-A2.9 miles 111°2025-01-04 08:32:36
JJ1WJE-73.0 miles 146°2025-01-16 17:10:30 JQ1BWT3.1 miles 303°2025-01-22 22:03:59
JJ4HLS-93.1 miles 239°2025-01-19 02:31:20 JL1AAW-73.2 miles 192°2025-01-02 07:41:12
JA1YKX-13.2 miles 168°2025-01-24 22:54:10 JA1YKX-23.2 miles 168°2025-01-24 22:53:16
JA1DRE-93.2 miles 184°2025-01-24 00:37:49 JA1DRE-53.2 miles 184°2025-01-21 23:25:57
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