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APRS station JA4MSM - show graphs
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Comment: QRV on 144.66MHz {UIV32N}
Location: 35°31.18' N 139°32.38' E - locator PM95SM44SR - show map - static map
5.2 miles East bearing 106° from Machida, Tōkyō, Japan [?]
5.6 miles Northeast bearing 64° from Minami-rinkan, Kanagawa, Japan
7.6 miles Northwest bearing 311° from Yokohama-shi, Kanagawa, Japan
14.5 miles Southwest bearing 216° from Tokyo, Tōkyō, Japan
Last position: 2017-04-10 21:16:18 EDT (100d 11h27m ago)
2017-04-11 10:16:18 JST local time at Machida, Japan [?]
Device: Roger Barker, G4IDE: UI-View32 (software, Windows)
Last path: JA4MSM>APU25N via TCPIP*,qAC,T2JNET
Positions stored: 15
Last heard a station directly: 2017-04-10 20:55:05 EDT (100d 11h48m ago)
Normal receiver range estimate: 56 miles (Updated: 2015-12-31 17:11:33 EST)
Stations near current position of JA4MSM - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JM1NDC-A0.6 miles 174°2017-07-04 22:04:38 JM1NDC0.6 miles 173°2017-07-11 20:18:27
JF1CHF-90.8 miles 165°2017-07-19 22:59:59 JA1DRE-A0.9 miles 179°2017-07-20 07:49:48
JA1DRE0.9 miles 179°2017-07-19 17:23:33 JA1DRE-50.9 miles 178°2017-07-16 19:17:30
JA1DRE-90.9 miles 183°2017-07-20 03:28:37 JA1RF-A1.0 miles 269°2017-07-15 17:35:51
JA1YKX-11.2 miles 129°2017-07-20 08:41:01 JA1YKX-21.2 miles 129°2017-07-20 08:21:38
JK1VMG-91.2 miles 104°2017-06-24 04:24:15 JR1NVW-A1.2 miles 85°2017-07-19 21:04:35
7L1RLL-C1.4 miles 0°2017-07-09 04:41:25 JK1NVL-91.6 miles 288°2017-07-19 22:18:23
JP1BLO-i1.6 miles 359°2017-06-25 03:48:09 IA1VBU-71.6 miles 84°2017-06-22 07:05:57
JQ1GLJ-91.7 miles 168°2017-07-02 08:24:26 JA8TNQ-A1.7 miles 135°2017-07-09 17:55:44
JR1OAO-B1.9 miles 44°2017-07-18 00:39:52 7M3AZZ2.0 miles 98°2017-07-20 08:36:32
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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