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 7N4CRV-A - show graphs
Map loading...
Location: 35°50.52' N 139°43.99' E - locator PM95UU72XB - show map - static map
3.2 miles Northeast bearing 45° from Toda, Saitama, Japan [?]
7.1 miles Northeast bearing 59° from Wako, Saitama, Japan
10.8 miles North bearing 12° from Tokyo, Tōkyō, Japan
27.7 miles North bearing 11° from Yokohama-shi, Kanagawa, Japan
Last position: 2018-01-19 18:00:48 EST (2d 1h26m ago)
2018-01-20 08:00:48 JST local time at Toda, Japan [?]
Last path: 7N4CRV-A>API31 via DSTAR*,qAS,JR1VD-IS (good)
Positions stored: 1086
Other SSIDs: 7N4CRV
Stations near current position of 7N4CRV-A - show more
callsign distance last heard - EST      callsign distance last heard - EST
7K3WKG-90.7 miles 221°2018-01-05 20:45:17 7K3LJI0.8 miles 181°2018-01-07 22:24:24
7K3WKG1.6 miles 211°2018-01-03 19:30:16 JA1LJC-H1.7 miles 251°2018-01-20 02:33:17
7M3QXW-A2.0 miles 292°2018-01-17 02:27:46 JE1JAN2.1 miles 216°2018-01-21 16:31:26
JE1JAN-D2.1 miles 217°2018-01-16 07:23:29 JR1UTI-122.1 miles 219°2018-01-21 02:04:44
JH1IUP-92.3 miles 240°2018-01-21 17:51:48 JI1LPA-92.3 miles 231°2018-01-21 00:23:00
JR1UTI-I2.4 miles 222°2018-01-19 23:15:44 JF1XTM2.9 miles 217°2018-01-08 01:11:25
JL1NSJ-72.9 miles 285°2018-01-20 22:01:04 7L4AJF-13.0 miles 245°2018-01-21 19:08:10
JI1TVV3.0 miles 262°2017-12-31 22:25:52 7K4RFP-53.0 miles 224°2018-01-16 05:07:56
JJ1RAF-23.2 miles 224°2018-01-21 19:08:14 JR0MOE-53.2 miles 224°2017-12-29 21:17:59
JH1DSD-73.3 miles 295°2018-01-14 11:59:39 JH1URN-93.3 miles 230°2018-01-20 22:34:56
Stations which heard 7N4CRV-A directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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