jks

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jks
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  • Dealing with excessive noise - SOLVED: Ethernet over Power caused noise

    jksjks
    Martin,

    That reminds me that I've been meaning to create a "gallery" of waterfall / spectrum screen caps of common interference sources. Lots of situations have been identified now: BPL, xDSL, electric fences, different SMPSs, the Ethernet problem, ADC overload, ...

    Huub

  • Dealing with excessive noise - SOLVED: Ethernet over Power caused noise

    jksjks
    Ugh, that's just about the worst noise I've ever seen.

    It might be ADSL or broadband-over-powerline (BPL). Note how the spectrum is obviously "notched" around the 30m, 20m, 17m and 15m ham bands (purple segments in band display). That's the service provider trying to keep hams happy, but failing dreadfully in this case. If you rotate the loop does the noise null at all?

    I think it might also be several independent noise sources. I've seen those strong 0 - 30 MHz lines that look like static crashes before. I think they come from seriously defective switch mode power supplies.


    image
    roach

  • Save money on another Kiwi or tell a friend [KiwiSDR sometimes on drop.com for $100 off MSRP]

    jksjks
    October 3: Massdrop is active again for 7 days. US$230 for a KiwiSDR kit if they get enough orders. Best deal out there!

    KA7U

  • SSB Click Frequency

    jksjks
    This has been an open issue for almost a year now: https://github.com/jks-prv/Beagle_SDR_GPS/issues/5

    Basically it is waiting for a "user preferences" capability to be introduced so the tuning method can be varied to individual taste. I'm not going to change the default behavior until then. Otherwise I'll get pummeled with people who don't like the change..

    KQ6XA

  • Can dx.json be manually edited?

    jksjks
    Some important clarification about the directory locations.

    Anything in /root/Beagle_SDR_GPS will be overwritten with a software update. So do not edit the files in /root/Beagle_SDR_GPS/unix_env/kiwi.config Files here are templates that are copied to /root/kiwi.config exactly once if they don't exist. Because the /root/kiwi.config directory is outside of the /root/Beagle_SDR_GPS directory structure it will not be effected by an update, and it is safe to edit them (and making a backup copy is a good idea).

    Bonnie, I edited your post slightly to reflect this.
    WA2ZKD