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APRS station OK1CMJ-1 - show graphs
Comment: W3,CZn-N,DIGI Praha Brdy ASL:860m
Location: 49°39.33' N 13°49.08' E - locator JN69VP87DH - show map
6.8 km Northwest bearing 331° from Rožmitál pod Třemšínem, Středočeský Kraj, Czech Republic [?]
9.1 km West bearing 270° from Bohutín, Středočeský Kraj, Czech Republic
33.3 km East bearing 108° from Plzeň, Plzeňský Kraj, Czech Republic
64.6 km Southwest bearing 222° from Prague, Hlavní Mesto Praha, Czech Republic
Last position: 2025-01-22 21:34:50 UTC (27d 2h9m ago)
2025-01-22 22:34:50 CET local time at Rožmitál pod Třemšínem, Czech Republic [?]
Last telemetry: 2025-01-22 21:25:25 UTC (27d 2h18m ago) – show telemetry
Avg 10m: 0.137 Rx Erlang, Avg 10m: 0.027 Tx Erlang, RxPkts: 125 count/10m, IGateDropRx: 255 count/10m, TxPkts: 22 count/10m
Device: Kenneth W. Finnegan, W6KWF: Aprx (igate, Linux/Unix)
Last path: OK1CMJ-1>APRX29 via qAR,OK1RPL-1
Positions stored: 5
Items and objects originated: 438.725BR
Other SSIDs: OK1CMJ-14 OK1CMJ-5 OK1CMJ-7 OK1CMJ-15 OK1CMJ-6 OK1CMJ-c OK1CMJ-04 OK1CMJ-10
APRS digipeater – Statistics for 2025-02:
Stations heard directly: 1 on radio path – show map
Last heard a station directly: 2025-01-25 18:16:18 UTC (24d 5h27m ago)
Normal receiver range estimate: 200 km (Updated: 2025-01-25 18:16:18 UTC)
Position packets heard directly: 1 on radio path
Stations heard directly by OK1CMJ-1
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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