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 JR1UDV-7 - show graphs
Mic-E message: Off duty
Location: 35°47.64' N 139°26.05' E - locator PM95RT20CN - show map
2.0 miles West bearing 260° from Tokorozawa, Saitama, Japan [?]
6.1 miles Southwest bearing 230° from Ōi, Saitama, Japan
16.1 miles Northwest bearing 297° from Tokyo, Tōkyō, Japan
26.6 miles Northwest bearing 334° from Yokohama-shi, Kanagawa, Japan
Last position: 2025-02-06 20:25:02 EST (1d 2h34m ago)
2025-02-07 10:25:02 JST local time at Tokorozawa, Japan [?]
Altitude: 325 ft
Course: 133°
Speed: 0 MPH
Device: Yaesu: FT5D (ht)
Last path: JR1UDV-7>SUTWV4 via JS1YAB-2*,WIDE2-1,qAR,JL1UXH-10 (good)
Positions stored: 409
Other SSIDs: JR1UDV-9
Stations near current position of JR1UDV-7 - show more
callsign distance last heard - EST      callsign distance last heard - EST
JI1BXM-71.4 miles 55°2025-02-03 16:04:18 JO1LVZ-121.6 miles 94°2025-02-04 05:28:36
JO1LVZ-101.8 miles 88°2025-02-07 22:49:34 JF1PUE-93.0 miles 80°2025-02-07 22:22:44
JE6AUN-73.2 miles 44°2025-02-06 06:30:06 JE6AUN-93.3 miles 41°2025-02-07 15:51:06
JK1VUX3.5 miles 109°2025-01-22 04:07:35 7K1KOP4.0 miles 122°2025-02-01 22:42:29
JI1BAK-134.0 miles 127°2025-02-07 22:21:39 JL1USZ-94.2 miles 192°2025-02-03 04:52:00
JF1AJE-24.2 miles 203°2025-01-29 01:29:15 JL1USZ-D4.3 miles 192°2025-02-03 05:26:17
JF1AJE-134.4 miles 205°2025-02-07 22:44:14 CW84434.4 miles 205°2025-02-07 22:52:54
JJ1VAG-74.4 miles 342°2025-02-01 03:22:10 JJ1BXD4.5 miles 95°2025-01-24 10:17:37
JA1NGG-94.7 miles 159°2025-02-07 03:41:25 JK1CUQ-95.0 miles 248°2025-02-06 18:43:00
JE6AUN-A5.1 miles 40°2025-02-07 20:03:44 7L4WXJ-55.1 miles 39°2025-02-07 16:00:45
Stations which heard JR1UDV-7 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
JS1YAB-2 2 2025-02-03 17:15:12 2025-02-04 16:05:37 PM96UE > PM95OP 47.1 miles 213° 2025-02-04 16:05:37
JQ1VUE-1 3 2025-02-04 06:07:40 2025-02-05 16:50:40 PM96UE > PM96VD 4.1 miles 142° 2025-02-05 16:50:40

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