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APRS station 7N4CRV - show graphs
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Comment: D-STAR>JP1YLB A
Location: 35°51.34' N 139°45.31' E - locator PM95VU05OI - show map - static map
4.0 miles Northeast bearing 29° from Kawaguchi, Saitama, Japan [?]
4.7 miles Northeast bearing 48° from Toda, Saitama, Japan
12.0 miles North bearing 17° from Tokyo, Tōkyō, Japan
28.9 miles North bearing 13° from Yokohama-shi, Kanagawa, Japan
Last position: 2018-02-23 02:54:55 EST (15h49m ago)
2018-02-23 16:54:55 JST local time at Kawaguchi, Japan [?]
Course: 232°
Device: Icom: unknown (D-Star)
Last path: 7N4CRV>API510 via DSTAR*,qAR,7M3TJZ-I (good)
Positions stored: 20844
Packet rate: 22 seconds between packets on average during 1091 seconds.
This station is transmitting packets at a high rate, which can cause congestion in the APRS network.
Other SSIDs: 7N4CRV-A
Stations near current position of 7N4CRV - show more
callsign distance last heard - EST      callsign distance last heard - EST
JK1EGQ0.5 miles 144°2018-02-23 17:43:21 JL1IIA-71.1 miles 261°2018-02-04 03:44:42
7N4CRV-A1.6 miles 232°2018-02-19 06:04:21 7K3LJI2.2 miles 216°2018-01-28 02:34:45
JG1MOP-82.2 miles 46°2018-02-23 17:53:18 JG1MOP-92.2 miles 45°2018-02-17 01:08:09
JH4XSY-132.7 miles 106°2018-02-23 18:36:47 JH4XSY-62.7 miles 106°2018-02-23 18:06:55
7N1XEM-122.7 miles 114°2018-01-27 20:47:11 JO1SKW-A2.8 miles 321°2018-02-18 03:22:37
JE1JAN-D3.0 miles 208°2018-02-19 20:27:10 JA1LJC-H3.2 miles 242°2018-02-17 04:57:59
JK1MVF-93.6 miles 189°2018-02-18 05:27:09 JE1JAN3.6 miles 223°2018-02-23 16:37:38
JA1BDJ-93.8 miles 263°2018-02-21 18:09:55 JH1IUP-93.8 miles 237°2018-02-22 17:59:56
JI1QXA3.9 miles 113°2018-02-04 00:05:35 JR1UTI-I4.0 miles 226°2018-02-23 02:32:44
7M3QXW-A4.0 miles 282°2018-02-23 02:58:53 JI1LPA-94.1 miles 232°2018-02-09 21:03:08
Stations which heard 7N4CRV directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST

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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