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 JH1TWC-9 - show graphs
Map loading...
Comment: 430.940MHz T103 Now QRV!
Mic-E message: In service
Location: 35°54.46' N 139°32.47' E - locator PM95SV47WU - show map - static map
5.4 miles West bearing 288° from Yono, Saitama, Japan [?]
6.5 miles West bearing 270° from Saitama, Saitama, Japan
17.3 miles Northwest bearing 331° from Tokyo, Tōkyō, Japan
32.3 miles North bearing 350° from Yokohama-shi, Kanagawa, Japan
Last position: 2017-04-25 04:11:48 EDT (1d 1h50m ago)
2017-04-25 17:11:48 JST local time at Yono, Japan [?]
Altitude: 26 ft
Course: 324°
Device: Yaesu: FTM-400DR (rig)
Last path: JH1TWC-9>S5UTT6 via WIDE1-1,qAR,JI1LCY-10 (good)
Positions stored: 25287
Packet rate: 318 seconds between packets on average during 12703 seconds.
Other SSIDs: JH1TWC JH1TWC-5
Stations near current position of JH1TWC-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JP1YKW-I1.0 miles 280°2017-04-26 05:54:27 JH1WWW-P1.6 miles 223°2017-04-09 18:51:03
7M4BXO1.7 miles 298°2017-04-26 06:02:23 JG1NSP2.6 miles 288°2017-04-25 07:47:48
JA1HDK-93.1 miles 234°2017-04-07 04:13:02 JM1QHI-93.6 miles 21°2017-04-22 05:47:23
JO2KLR3.8 miles 217°2017-04-11 05:09:36 JJ0PTS-93.9 miles 288°2017-04-25 21:18:59
JE1DLC-54.0 miles 182°2017-04-14 02:24:32 JP1BLO-i4.1 miles 194°2017-04-15 00:52:40
JG1XAF-74.4 miles 287°2017-04-25 18:14:09 JE1WVQ-74.9 miles 117°2017-04-01 01:50:42
JM1GDA-54.9 miles 205°2017-04-20 22:58:31 JI1WTB5.2 miles 114°2017-03-31 10:38:13
JE4VQR-95.2 miles 58°2017-04-25 08:59:01 JP1AWP-95.3 miles 121°2017-04-16 05:27:53
JA1UEX-135.3 miles 172°2017-04-26 05:59:56 7L2UTN-75.3 miles 128°2017-04-21 23:39:56
JH1WUX-25.4 miles 129°2017-04-26 05:40:29 JP1AWP-135.5 miles 121°2017-04-26 05:57:30
Stations which heard JH1TWC-9 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
JA1KWV-1 1 2017-04-17 20:41:01 2017-04-17 20:41:01 PM95SU > PM95TR 12.7 miles 143° 2017-04-17 20:41:01
JQ1YFT-2 75 2017-03-31 23:40:12 2017-04-25 03:00:18 PM95TW > PM95OP 29.6 miles 225° 2017-04-21 02:35:05
JA1YKX-2 3 2017-04-06 21:41:46 2017-04-21 21:03:11 PM95SV > PM95SM 27.8 miles 178° 2017-04-21 21:03:11
JQ1YWK-10 23 2017-04-01 00:01:30 2017-04-25 02:08:08 PM95RW > PM95QP 22.0 miles 199° 2017-04-22 00:22:57
JO1YDG-10 1 2017-04-11 03:54:43 2017-04-11 03:54:43 PM95RW > PM95GO 58.9 miles 247° 2017-04-11 03:54:43
JH1WUX-2 24 2017-03-31 23:37:50 2017-04-25 03:27:24 PM95PU > PM95TU 20.1 miles 88° 2017-04-06 21:07:36
JI1LCY-10 320 2017-03-31 22:15:44 2017-04-25 04:11:48 PM95TW > PM95RU 11.6 miles 246° 2017-04-21 02:43:50
JH1AGK-10 3 2017-04-01 21:44:33 2017-04-22 00:30:14 PM95RX > PM95UP 26.6 miles 148° 2017-04-22 00:12:36
JJ1RAF-2 34 2017-03-31 23:55:43 2017-04-22 00:11:53 PM95RX > PM95UT 17.3 miles 133° 2017-04-22 00:11:53
JQ1ZOM-10 1 2017-04-15 21:15:52 2017-04-15 21:15:52 PM95RW > PM96TI 29.6 miles 12° 2017-04-15 21:15:52

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