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 JH1RDA-A - show graphs
Map loading...
Location: 36°37.75' N 140°40.89' E - locator QM06IP11SA - show map - static map
6.3 miles South bearing 198° from Takahagi, Ibaraki, Japan [?]
11.3 miles South bearing 200° from Kitaibaraki, Ibaraki, Japan
75.7 miles Northeast bearing 49° from Saitama, Saitama, Japan
85.2 miles Northeast bearing 40° from Tokyo, Tōkyō, Japan
Last position: 2018-06-22 10:03:03 EDT (10h59m ago)
2018-06-22 23:03:03 JST local time at Takahagi, Japan [?]
Last path: JH1RDA-A>API31 via DSTAR*,qAR,JQ1ZRY-C (good)
Positions stored: 6358
Packet rate: 152 seconds between packets on average during 7440 seconds.
Other SSIDs: JH1RDA JH1RDA-B
Stations near current position of JH1RDA-A - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JP1YKL-I4.7 miles 222°2018-06-22 20:44:25 HIRYO5.0 miles 89°2018-06-21 23:32:29
JK1JXY-95.2 miles 212°2018-06-22 18:22:21 JK1JXY-15.4 miles 211°2018-06-22 20:34:21
SANYOUMARU5.8 miles 139°2018-05-26 14:33:18 SEIKAIMARU6.8 miles 86°2018-06-22 03:37:01
NO.28 SUMIWAKA MARU6.9 miles 132°2018-06-16 23:09:18 KAIYOUMARU7.2 miles 99°2018-06-21 12:51:57
7N2ATD-107.4 miles 2°2018-06-22 20:48:11 7N2ATD-137.4 miles 2°2018-06-22 20:48:11
7N2ATD-127.4 miles 0°2018-06-22 08:02:05 JN7TAN-97.4 miles 358°2018-06-14 22:18:08
7N2ATD-97.5 miles 2°2018-06-21 21:54:20 7M1JBF-97.7 miles 11°2018-06-22 13:09:11
KAISEI MARU7.8 miles 90°2018-06-18 01:49:08 7M1JBF-I7.8 miles 11°2018-06-22 20:50:49
SPIRIT OF TOKYO8.0 miles 138°2018-05-27 18:53:07 EVER SUNNY8.4 miles 86°2018-06-15 14:27:17
JK1FZR-78.4 miles 10°2018-06-22 04:14:16 JH1MQJ-98.5 miles 205°2018-06-19 23:33:58
Stations which heard JH1RDA-A directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
DSTAR 545 2018-06-01 05:29:42 2018-06-22 10:03:03 QM06HO > KN21QD 5682.6 miles 317° 2018-06-04 06:48:30

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