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APRS station 7N4TDN-9 - show graphs
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Comment: 438.960MHz FTM400DH APRS 144.640 9600bps
Mic-E message: Off duty
Location: 35°35.16' N 139°23.94' E - locator PM95QO70VP - show map - static map
9.9 miles Southwest bearing 241° from Chōfu, Tōkyō, Japan [?]
10.4 miles West bearing 251° from Komae, Tōkyō, Japan
16.7 miles Northwest bearing 305° from Yokohama-shi, Kanagawa, Japan
17.9 miles Southwest bearing 247° from Tokyo, Tōkyō, Japan
Last position: 2018-01-05 23:52:54 EST (11d 15h4m ago)
2018-01-06 13:52:54 JST local time at Chōfu, Japan [?]
Altitude: 367 ft
Course: 16°
Speed: 14 MPH
Device: Yaesu: FTM-400DR (rig)
Last path: 7N4TDN-9>SUSUQ6 via WIDE1-1,qAR,JQ1YWK-10 (good)
Positions stored: 35870
Other SSIDs: 7N4TDN 7N4TDN-7
Stations near current position of 7N4TDN-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
7N4TDN0.4 miles 57°2018-01-06 05:35:39 JN1SKT-71.2 miles 192°2018-01-10 05:00:49
7M1VGP-91.5 miles 205°2018-01-16 04:49:14 JM1BEP-91.5 miles 141°2018-01-15 06:03:53
JG1RBF-91.5 miles 129°2018-01-17 03:05:57 7M1CRZ-91.5 miles 208°2017-12-24 02:25:44
7M1VGP1.6 miles 243°2018-01-15 05:20:19 JG1RBF-71.6 miles 118°2018-01-14 04:19:52
JI1HEW-91.9 miles 244°2018-01-16 18:54:14 JH1DOX-91.9 miles 358°2018-01-15 20:54:26
JA1AGS-92.2 miles 259°2018-01-12 23:43:49 JJ1HZB-92.5 miles 156°2018-01-17 05:49:53
JH1HFH-92.6 miles 158°2018-01-04 00:58:09 JO1KVS-72.6 miles 320°2018-01-08 07:18:45
JF1CHF-92.7 miles 201°2018-01-10 22:31:45 JI1WIF-92.8 miles 299°2018-01-17 07:38:20
JG1QWM-92.8 miles 207°2017-12-21 16:31:41 JH1WWR-72.9 miles 257°2018-01-07 03:31:17
JA9QQN-122.9 miles 253°2018-01-17 04:46:30 JM1INP-72.9 miles 101°2017-12-24 01:03:04
Stations which heard 7N4TDN-9 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
JQ1YFT-2 7 2018-01-01 16:30:25 2018-01-05 23:45:22 PM95QN > PM95OP 9.4 miles 290° 2018-01-02 00:56:40
JQ1YWK-10 25 2018-01-01 16:32:21 2018-01-05 23:52:54 PM95QN > PM95QP 4.9 miles 343° 2018-01-05 23:40:01

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.
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