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 JM4WDK-9 - show graphs
Map loading...
Mic-E message: In service
Location: 34°33.84' N 133°41.25' E - locator PM64UN25MI - show map - static map
4.7 miles West bearing 254° from Kurashiki, Okayama, Japan [?]
6.3 miles East bearing 70° from Kamogata, Okayama, Japan
15.6 miles Southwest bearing 244° from Okayama-shi, Okayama, Japan
70.9 miles East bearing 80° from Hiroshima-shi, Hiroshima, Japan
Last position: 2019-03-26 06:55:11 EDT (1h37m ago)
2019-03-26 19:55:11 JST local time at Kurashiki, Japan [?]
Altitude: 36 ft
Course: 356°
Speed: 15 MPH
Device: Yaesu: FT1D (ht)
Last path: JM4WDK-9>S4SSX4 via JM4WDK-2*,qAR,JR5YFF-10 (good)
Positions stored: 31360
Packet rate: 254 seconds between packets on average during 1525 seconds.
Other SSIDs: JM4WDK-2
Stations near current position of JM4WDK-9 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JH4GLG-71.8 miles 265°2019-03-24 22:38:49 JH4GLG-11.8 miles 265°2019-03-26 08:31:44
JM4WDK-22.0 miles 218°2019-03-26 08:17:57 JJ5MSU-54.5 miles 68°2019-03-04 03:18:18
JA9HTM-i5.4 miles 66°2019-03-08 04:59:19 JH5AOZ-55.4 miles 69°2019-03-23 02:38:35
JL4UMO-95.7 miles 261°2019-03-26 06:46:51 JO4EQJ-95.8 miles 8°2019-03-26 01:42:33
JE4MKV-95.9 miles 59°2019-03-25 09:30:29 JH5AOZ-76.0 miles 66°2019-03-23 01:14:34
JE4YIB-N6.0 miles 71°2019-03-26 08:22:55 PS-JE4YIB6.0 miles 71°2019-03-26 08:01:30
JE4YIB-106.0 miles 71°2019-03-26 08:09:23 JE4SMQ-96.0 miles 71°2019-03-26 05:22:03
JE4SMQ6.5 miles 62°2019-03-09 18:04:37 JH4UWK-97.4 miles 43°2019-03-26 04:41:31
JG4PWJ-147.6 miles 145°2019-03-24 22:57:49 JH5AOZ-98.6 miles 138°2019-03-23 09:09:41
JN4VVU-B9.4 miles 140°2019-03-13 06:37:56 JO4BDG-79.8 miles 253°2019-03-19 01:44:23
Stations which heard JM4WDK-9 directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
JA5YVT-2 1 2019-03-01 17:27:41 2019-03-01 17:27:41 PM64TN > PM63KW 59.2 miles 226° 2019-03-01 17:27:41
JA4YYF-2 4 2019-03-15 07:51:22 2019-03-21 09:02:06 PM64UN > PM64RX 31.9 miles 335° 2019-03-21 09:00:06
JM4WDK-2 331 2019-03-01 03:17:50 2019-03-26 06:55:11 PM64UO > PM64TM 7.2 miles 220° 2019-03-21 04:27:12
JE4YMQ-10 29 2019-02-28 20:22:57 2019-03-22 18:11:45 PM64SN > PM64WP 19.2 miles 67° 2019-02-28 20:22:57
JE4YIB-10 16 2019-03-14 18:44:31 2019-03-25 09:35:47 PM64VP > PM64VO 2.3 miles 181° 2019-03-21 04:29:12
JR5YFF-10 64 2019-03-01 04:26:32 2019-03-26 06:51:10 PM64TN > PM74CA 50.6 miles 136° 2019-03-10 04:33:42

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.
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