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  • #46
    I suspect the SDR, if you look at my stats, EICB1, you will see on the page for the 14-04-20 that I gather some stats for a short while then it stopped gathering anything. In fact more in a two hour window that it has managed since.

    It may be a hot fault, as when I let it cool down and restart the PI I often get some data for a short while then it will only pickup aircraft that are right on top of me, compared to <=200nm on the first day. Today peak range is 21nm for instance.

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    • #47
      So, Nooelec NESDR SMArt v4 SDR arrived and powered USB hub, switched over and am tracking aircraft out to 200nm.

      Thanks to everyone who helped me, it has been a learning experience!

      I have several other SDR fobs on order so I will setup and try them, an post my results.

      Thanks again!

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      • #48
        For reference, last hour stats;

        "latest":{"start":1587566169.5,"end":158756616 9.5, "local":{"samples_processed":0,"samples_droppe d":0 ,"modeac":0,"modes":0,"bad":0,"unknown_icao":0,"ac cepted":[0,0],"strong_signals":0},"remote":{"modeac":0,"mode s": 0,"bad":0,"unknown_icao":0,"accepted":[0,0]},"cpr":{"surface":0,"airborne":0,"global_ok":0, "g lobal_bad":0,"global_range":0,"global_speed":0,"gl obal_skipped":0,"local_ok":0,"local_aircraft_relat ive":0,"local_receiver_relative":0,"local_skipped " :0,"local_range":0,"local_speed":0,"filtered":0}, " altitude_suppressed":0,"cpu":{"demod":0,"reader":0 ,"background":0},"tracks":{"all":0,"single_mess age ":0,"unreliable":0},"messages":0},
        "last1min":{"start":1587566109.5,"end":1587566 169. 5,"local":{"samples_processed":144048128,"sample s_ dropped":0,"modeac":0,"modes":1097521,"bad":692624 ,"unknown_icao":403010,"accepted":[1864,23],"signal":-12.8,"noise":-32.2,"peak_signal":-8.0,"strong_signals":0},"remote":{"modeac":0,"mode s":0,"bad":0,"unknown_icao":0,"accepted":[0,0]},"cpr":{"surface":0,"airborne":263,"global_ok": 26 0,"global_bad":0,"global_range":0,"global_speed" :0 ,"global_skipped":0,"local_ok":1,"local_aircraf t_r elative":0,"local_receiver_relative":0,"local_skip ped":2,"local_range":0,"local_speed":0,"filtered" : 0},"altitude_suppressed":0,"cpu":{"demod":6175,"r e ader":699,"background":378},"tracks":{"all":0,"sin gle_message":2,"unreliable":2},"messages":1887},
        "last5min":{"start":1587565869.5,"end":1587566 169. 5,"local":{"samples_processed":719978496,"sample s_ dropped":0,"modeac":0,"modes":5484833,"bad":345764 7,"unknown_icao":2016797,"accepted":[10032,357],"signal":-13.5,"noise":-32.2,"peak_signal":-6.0,"strong_signals":0},"remote":{"modeac":0,"mode s":0,"bad":0,"unknown_icao":0,"accepted":[0,0]},"cpr":{"surface":0,"airborne":1518,"global_ok" :1 501,"global_bad":0,"global_range":0,"global_speed" :0,"global_skipped":0,"local_ok":14,"local_aircraf t_relative":0,"local_receiver_relative":0,"local_s kipped":3,"local_range":0,"local_speed":0,"filtere d":0},"altitude_suppressed":0,"cpu":{"demod":30 376 ,"reader":3449,"background":1878},"tracks":{"al l": 4,"single_message":5,"unreliable":5},"messages": 10 389},
        "last15min":{"start":1587565269.5,"end":158756 6169 .5,"local":{"samples_processed":2160066560,"sampl e s_dropped":0,"modeac":0,"modes":16441657,"bad":103 61874,"unknown_icao":6043105,"accepted":[35081,1597],"signal":-11.6,"noise":-32.0,"peak_signal":-3.1,"strong_signals":0},"remote":{"modeac":0,"mode s":0,"bad":0,"unknown_icao":0,"accepted":[0,0]},"cpr":{"surface":0,"airborne":5831,"global_ok" :5 768,"global_bad":0,"global_range":0,"global_speed" :0,"global_skipped":0,"local_ok":39,"local_aircra f t_relative":0,"local_receiver_relative":0,"local_s kipped":24,"local_range":0,"local_speed":0,"filter ed":0},"altitude_suppressed":0,"cpu":{"demod":91 29 6,"reader":10404,"background":5679},"tracks":{"a ll ":25,"single_message":23,"unreliable":23},"mes sage s":36678},
        "total":{"start":1587562509.4,"end":1587566169 .5," local":{"samples_processed":7672168448,"samples_dr opped":0,"modeac":0,"modes":58468706,"bad":3674825 2,"unknown_icao":21376620,"accepted":[334918,8916],"signal":-12.8,"noise":-31.4,"peak_signal":-1.7,"strong_signals":734},"remote":{"modeac":0,"mo des":126,"bad":0,"unknown_icao":0,"accepted":[126,0]},"cpr":{"surface":0,"airborne":41563,"global_ok ": 41313,"global_bad":0,"global_range":0,"global_spee d":0,"global_skipped":26,"local_ok":170,"local_ air craft_relative":0,"local_receiver_relative":0,"loc al_skipped":80,"local_range":0,"local_speed":0,"fi ltered":0},"altitude_suppressed":0,"cpu":{"demod": 321857,"reader":37085,"background":20507},"tracks" :{"all":131,"single_message":95,"unreliable":95} ," messages":343960}

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        • #49
          you want to plot those ... and post pictures
          https://github.com/wiedehopf/graphs1090#graphs1090

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          • #50
            Something like this you mean?
            Attached Files

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            • #51
              Readability is a bit better.

              Looking at json only if i have to and then mostly using jq

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              • #52
                Yea, I posted the json because I posted one when I was having issues, so it gives a good before and after.

                My current max range is 224nm.

                I will post some more when I get to 24hrs of data with the nooelec NESDR v4.

                Any requests?

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                • #53
                  I have seen lots of graphs, was just making a general remark.

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