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°54.39' N 139°32.51' E - locator PM95SV57AN - show map - static map
3.0 miles Northeast bearing 37° from Kamifukuoka, Saitama, Japan [?]
5.4 miles West bearing 287° from Yono, Saitama, Japan
17.2 miles Northwest bearing 331° from Tokyo, Tōkyō, Japan
32.2 miles North bearing 350° from Yokohama-shi, Kanagawa, Japan
Last position: 2020-07-06 23:36:20 EDT (2d 5h2m ago)
2020-07-07 12:36:20 JST local time at Kamifukuoka, Japan [?]
Altitude: 23 ft
Course: 33°
Speed: 20 MPH
Device: Yaesu: FTM-400DR (rig)
Last path: JH1TWC-9>S5UTS9 via JS1YAB-2*,qAR,JQ1ZOM-10 (good)
Positions stored: 30467
Packet rate: 540 seconds between packets on average during 5940 seconds.
Other SSIDs: JH1TWC-B JH1TWC-N
Stations near current position of JH1TWC-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
ST164.9 yards 349°2020-06-25 17:24:17 JI1ISK0.8 miles 327°2020-06-26 05:56:12
JP1YKW-I1.0 miles 284°2020-07-09 04:26:06 JH1XPB-71.3 miles 313°2020-07-08 08:30:11
JH1XPB-51.3 miles 313°2020-07-04 19:56:40 JG1NSP1.9 miles 286°2020-07-08 16:26:00
JJ1GFO-72.6 miles 125°2020-06-11 19:44:40 JG1XAF-72.6 miles 287°2020-07-09 03:36:45
7M3QXW-B3.4 miles 45°2020-07-09 01:48:59 JM1VNK-93.8 miles 19°2020-07-09 03:26:07
JE1NCL-73.9 miles 18°2020-06-16 04:58:55 JE1NCL-94.1 miles 26°2020-07-09 02:11:29
JI1WTB-74.4 miles 89°2020-07-01 23:19:18 JA1LWR-B4.6 miles 151°2020-06-27 00:45:58
7L4WXJ4.7 miles 216°2020-07-09 04:29:23 JE6AUN-74.7 miles 216°2020-06-22 04:44:37
7L4WXJ-74.7 miles 216°2020-06-20 23:17:07 7L4WXJ-94.7 miles 216°2020-07-09 01:09:51
7L4WXJ-54.7 miles 216°2020-07-09 04:03:25 JE6AUN-94.7 miles 216°2020-07-09 01:11:53
Stations which heard JH1TWC-9 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
JQ1ZIF-2 2 2020-07-02 22:08:53 2020-07-02 22:16:53 PM95SU > QM05CK 47.4 miles 127° 2020-07-02 22:16:53
JS1YAB-2 58 2020-07-02 19:56:20 2020-07-06 23:36:20 PM95SW > PM95OP 26.1 miles 215° 2020-07-03 02:14:42

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.
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