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 7N4WPJ - show graphs
Map loading...
Location: 36°05.30' N 140°12.75' E - locator QM06CC51ME - show map - static map
3.7 miles Northeast bearing 44° from Naka, Ibaraki, Japan [?]
3.9 miles North bearing 10° from Ami, Ibaraki, Japan
40.1 miles Northeast bearing 46° from Tokyo, Tōkyō, Japan
54.6 miles Northeast bearing 36° from Yokohama-shi, Kanagawa, Japan
Last position: 2017-07-13 02:31:29 EDT (8d 2h20m ago)
2017-07-13 15:31:29 JST local time at Naka, Japan [?]
Device: Icom: unknown (D-Star)
Last path: 7N4WPJ>API510 via DSTAR*,qAS,JP1YLF-IS (good)
Positions stored: 492
Other SSIDs: 7N4WPJ-3 7N4WPJ-7
Stations near current position of 7N4WPJ - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JJ3EBU-91.5 miles 193°2017-06-27 10:48:23 7N1RMT-71.7 miles 322°2017-07-20 23:24:09
JA1GWR-92.0 miles 72°2017-07-20 18:18:28 jh1hat-i2.6 miles 97°2017-07-18 13:02:18
jg1vnf-i3.0 miles 240°2017-06-30 12:30:32 7N1LYW-83.5 miles 24°2017-07-21 04:45:09
JA1KUU-73.7 miles 236°2017-07-16 04:36:33 JH1OJH4.4 miles 218°2017-07-07 07:04:05
JF1UKG4.5 miles 225°2017-06-24 20:20:16 JR0ZEF-104.7 miles 243°2017-07-09 01:10:16
JF1MVF4.7 miles 239°2017-06-30 23:47:52 JA1ITJ4.7 miles 193°2017-07-20 20:25:26
JA1CFV-74.8 miles 168°2017-07-21 00:23:46 JG1BWJ-B4.9 miles 189°2017-07-18 18:03:54
JG1EMA5.8 miles 274°2017-07-15 01:19:34 JE1LHM5.9 miles 265°2017-07-11 00:40:48
JP7SAM-75.9 miles 270°2017-07-19 04:32:10 7N1GQJ6.1 miles 338°2017-07-19 05:21:48
JG1HSY-56.3 miles 206°2017-07-12 09:45:09 7K1XVO-76.4 miles 268°2017-07-16 08:25:41
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.
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