njc

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njc
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  • Seeed Metal case and GPIO connector

    njcnjc
    I was able to use DowKey RF switches/relays without a driver circuit. The logic input pins just needed a pulldown to GND (I used 10k).

    Nick W1NJC
    KA7U

  • My KiwiSDR has Died [power supply problem]

    njcnjc

    If the resistance on the barrel connector (kiwi board by itself) looks good, try to apply power (5V, 2A or more) and check the voltage rails. You can also check if anything is getting hot.

    See this thread/comment: http://forum.kiwisdr.com/index.php?p=/discussion/comment/11016#Comment_11016

    ZL1KFM

  • broken rx?

    njcnjc

    I 2nd the idea of reducing antenna gain or maybe try an attenuator. See what effect a 10 or 20 dB pad has. I run mine with 3dB (or is it 6dB?) on it all the time because I get overload from AM BCB… (more)

    johnk5mo

  • Two deaths in the family

    njcnjc
    Did you try measuring DC resistance (with no power applied) on the kiwi's main voltage rails? 5V, 3.3[this comes from the BB], 3.3G, 3.3A, 1.8V, 1V? Measure these with the kiwi board disconnected… (more)
    johnk5mo

  • Replace FPGA? [success!]

    njcnjc
    Success!

    The BGA operation worked and the kiwi is functional again using a BBB that I had.

    Now, I've been trying very hard to get the MT7601 USB wifi dongle working and it's proving just as difficult… (more)
    cathalferrisHB9TMCChrisSmolinskiPowernumptydl7awl

  • Replace FPGA? [success!]

    njcnjc
    Success!

    The BGA operation worked and the kiwi is functional again using a BBB that I had.

    Now, I've been trying very hard to get the MT7601 USB wifi dongle working and it's proving just as difficult… (more)
    cathalferrisHB9TMCChrisSmolinskiPowernumptydl7awl

  • Replace FPGA? [success!]

    njcnjc
    Success!

    The BGA operation worked and the kiwi is functional again using a BBB that I had.

    Now, I've been trying very hard to get the MT7601 USB wifi dongle working and it's proving just as difficult… (more)
    cathalferrisHB9TMCChrisSmolinskiPowernumptydl7awl

  • Replace FPGA? [success!]

    njcnjc
    Success!

    The BGA operation worked and the kiwi is functional again using a BBB that I had.

    Now, I've been trying very hard to get the MT7601 USB wifi dongle working and it's proving just as difficult… (more)
    cathalferrisHB9TMCChrisSmolinskiPowernumptydl7awl

  • Replace FPGA? [success!]

    njcnjc
    Success!

    The BGA operation worked and the kiwi is functional again using a BBB that I had.

    Now, I've been trying very hard to get the MT7601 USB wifi dongle working and it's proving just as difficult… (more)
    cathalferrisHB9TMCChrisSmolinskiPowernumptydl7awl

  • web file modifications (CSS/JS)

    njcnjc
    This CSS seems to help most mobile browsers and makes the UI usable.


    @media only screen
    and (max-device-width: 600px)
    {
    #id-readme {
    display: none;
    }

    #id-control {
    transform: scale(.8);
    transform-… (more)
    Powernumpty