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APRS station JM4WDK-9 - show graphs
Mic-E message: In service
Location: 34°32.51' N 133°36.91' E - locator PM64TN30TA - show map
3.1 km East bearing 72° from Kamogata, Okayama, Japan [?]
11.5 km Northeast bearing 66° from Kasaoka, Okayama, Japan
32.1 km Southwest bearing 246° from Okayama-shi, Okayama, Japan
107.1 km East bearing 81° from Hiroshima-shi, Hiroshima, Japan
Last position: 2025-07-11 22:19:04 UTC (9h5m ago)
2025-07-12 07:19:04 JST local time at Kamogata, Japan [?]
Altitude: 17 m
Course: 271°
Speed: 41 km/h
Device: Yaesu: FT1D (ht)
Last path: JM4WDK-9>S4SRU1 via JA4ZAQ-2*,qAR,JA5MSG-10 (good)
Positions stored: 65065
Stations which heard JM4WDK-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

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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