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APRS station JK1ZRW-2 - show graphs
Comment: 144.640MHz 9600bps Tx-iGate & Digipeater
Location: 35°53.59' N 139°24.95' E - locator PM95QV94VI - show map
4.5 km North bearing 4° from Sayama, Saitama, Japan [?]
6.5 km West bearing 255° from Kawagoe, Saitama, Japan
33.6 km Northwest bearing 312° from Tokyo, Tōkyō, Japan
53.6 km North bearing 338° from Yokohama-shi, Kanagawa, Japan
Last position: 2024-06-22 09:05:38 UTC (19m58s ago)
2024-06-22 18:05:38 JST local time at Sayama, Japan [?]
Last telemetry: 2024-06-22 09:15:58 UTC (9m38s ago) – show telemetry
Avg 10m: 0.019 Rx Erlang, Avg 10m: 0.003 Tx Erlang, RxPkts: 21 count/10m, IGateDropRx: 9 count/10m, TxPkts: 2 count/10m
Device: Kenneth W. Finnegan, W6KWF: Aprx (igate, Linux/Unix)
Last path: JK1ZRW-2>APRX29 via TCPIP*,qAS,JK1ZRW-1
Positions stored: 1
Other SSIDs: JK1ZRW-11 JK1ZRW-12 JK1ZRW-13
APRS igate – Statistics for 2024-06:
Stations heard directly: 57 on radio path – show map
Last heard a station directly: 2024-06-22 08:03:18 UTC (1h22m ago)
Normal receiver range estimate: 30 km (Updated: 2024-05-31 21:57:30 UTC)
Position packets heard directly: 1700 on radio path
Position packets sent to APRS-IS: 1909 – show map
Stations heard directly by JK1ZRW-2
callsign pkts first heard - UTC last heard longest (rx => tx) longest at - UTC

Only stations from which a position packet has been heard 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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