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APRS station 7M1JBF-A - show graphs
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Comment: & RX 433.30
Location: 35°47.76' N 139°54.50' E - locator PM95WT81XA - show map - static map
1.0 miles Northeast bearing 28° from Matsudo, Chiba, Japan [?]
5.3 miles North bearing 350° from Ichikawa, Chiba, Japan
14.2 miles Northeast bearing 59° from Tokyo, Tōkyō, Japan
28.3 miles Northeast bearing 32° from Yokohama-shi, Kanagawa, Japan
Last position: 2017-05-20 17:50:06 EDT (5d 4h ago)
2017-05-21 06:50:06 JST local time at Matsudo, Japan [?]
Altitude: 36 ft
Last path: 7M1JBF-A>API31 via DSTAR*,qAS,JJ1YEG-IS (good)
Positions stored: 3651
Packet rate: 30 seconds between packets on average during 151 seconds.
Other SSIDs: 7M1JBF 7M1JBF-10 7M1JBF-12 7M1JBF-13 7M1JBF-5 7M1JBF-9 7M1JBF-B 7M1JBF-I
Stations near current position of 7M1JBF-A - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
7M1JBF-563.0 yards 15°2017-05-25 08:52:21 7M1JBF-90.4 miles 39°2017-05-13 11:40:08
JH1LWU-131.4 miles 187°2017-05-25 21:32:08 JH1LWU-61.4 miles 187°2017-05-03 00:08:42
JQ1QBR-91.4 miles 329°2017-05-17 01:14:01 JA1MKB-92.0 miles 0°2017-05-25 20:36:50
JH1XHE-92.5 miles 302°2017-05-14 04:21:57 JS1BKV-92.6 miles 36°2017-05-12 14:13:39
7K1VKU-92.9 miles 292°2017-05-25 18:29:11 JO1WSH-A2.9 miles 93°2017-05-25 06:09:53
JE1KUC-93.1 miles 321°2017-05-07 19:09:20 JR2UFR-53.3 miles 211°2017-05-22 05:35:05
JR8YMX-53.3 miles 211°2017-05-21 00:51:04 JR2UFR-73.3 miles 211°2017-05-21 10:32:21
7K1VKU-73.5 miles 147°2017-05-25 00:51:07 JH1KTO-113.7 miles 340°2017-05-01 23:24:11
7L4DOA3.8 miles 358°2017-05-21 21:38:50 JG1IPL4.3 miles 228°2017-05-25 19:07:17
JA1HSS-94.3 miles 36°2017-05-24 11:22:07 JF1JUZ4.6 miles 253°2017-05-25 21:07:13
Stations which heard 7M1JBF-A directly on radio –
callsign pkts first heard - EDT last heard longest (tx => rx) longest at - EDT
DSTAR 77 2017-05-02 05:46:48 2017-05-20 17:50:06 PM95WT > GG87JA 11522.7 miles 13° 2017-05-20 17:50:06

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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