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APRS station JA1RF-A - show graphs
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Location: 35°30.94' N 139°31.31' E - locator PM95SM23OS - show map - static map
8.2 miles Northwest bearing 305° from Yokohama-shi, Kanagawa, Japan [?]
11.0 miles West bearing 268° from Kawasaki, Kanagawa, Japan
15.3 miles Southwest bearing 219° from Tokyo, Tōkyō, Japan
Last position: 2017-01-23 05:40:04 EST (10h30m ago)
2017-01-23 19:40:04 JST local time at Yokohama-shi, Japan [?]
Speed: 8 MPH
Last path: JA1RF-A>API31 via DSTAR*,qAR,JQ1ZTN-B (good)
Positions stored: 530
Packet rate: 81 seconds between packets on average during 1530 seconds.
Stations near current position of JA1RF-A - show more
callsign distance last heard - EST      callsign distance last heard - EST
JK1NVL-90.5 miles 359°2017-01-23 03:05:00 JS1JYW0.6 miles 83°2017-01-22 18:32:38
JA6VEB-91.0 miles 0°2017-01-21 03:02:24 JM1NDC-A1.1 miles 109°2017-01-11 23:38:13
JM1NDC1.1 miles 108°2017-01-23 05:14:37 JA1DRE-A1.2 miles 120°2017-01-23 15:09:47
JA1DRE-91.2 miles 119°2017-01-23 03:57:26 JF1CHF-91.4 miles 106°2017-01-22 22:22:50
JA1DRE1.5 miles 196°2017-01-22 17:00:43 JL1XHC-71.6 miles 302°2017-01-07 22:18:17
JJ1BAS1.6 miles 229°2017-01-15 01:45:11 JI1GBT-91.7 miles 64°2017-01-23 03:50:35
JQ1GLJ-71.8 miles 141°2017-01-17 23:30:29 JH1PBO-91.9 miles 308°2017-01-08 01:17:58
JM1WFY-71.9 miles 305°2017-01-21 19:30:30 JA1YKX-12.0 miles 104°2017-01-23 16:06:10
JA1YKX-22.0 miles 104°2017-01-23 16:05:18 JA1HWH2.0 miles 9°2017-01-05 00:07:10
JK1VMG-A2.0 miles 90°2017-01-18 06:41:37 JO1GUF-72.1 miles 349°2017-01-21 21:51:53
Stations which heard JA1RF-A directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
DSTAR 36 2017-01-14 20:10:18 2017-01-23 05:40:04 PM95SK > GG87JA 11551.2 miles 12° 2017-01-23 05:17:04

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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