jks

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jks
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  • Redirect to the next kiwisdr.

    jksjks
    Apparently this happens when the last free slot is trying to occupy 2 users at the same time.
    I'm not sure what you mean exactly. Do you mean when two users are trying to connect simultaneously to the last channel of the first Kiwi in a redirected chain? (e.g. channel #4 of a 4-channel Kiwi1 that re-directs to Kiwi2). The redirection code was tested pretty carefully. But of course that doesn't mean there isn't a bug someplace.

    Also, it would be nice at the time of the update to keep the ability to redirect to the next kiwi instead of the “update” message, if it's real.
    That's an interesting idea. Hadn't occurred to me before.
    WA2ZKDPowernumpty

  • Proxy service down or unstable [currently okay]

    jksjks
    @Jimo: Not so simple. Not because of the actual code issues, but because of the validation and deployment issues (as usual). Can you imagine the disruption? Especially if something goes wrong?

    This is probably best handled when there is the eventual need to open a second proxy server (we're getting close and it will probably be in the EU). That way the migration can be done in a controlled way.
    Jimo

  • Any tools to save KiwiSDR waterfall to image ?

    jksjks
    It has a --zoom (-z) option which defaults to zero meaning zoomed all the way out (0 - 30MHz). Setting the frequency only matters when you are zoomed further in (values 1-14). These zoom values match the zoom values seen on the Kiwi user interface (i.e. number 'n' after "WFn" tab on main control panel).
    kovalr

  • Any tools to save KiwiSDR waterfall to image ?

    jksjks
    Yes! Right-click on your mouse to bring up the Kiwi utility menu. This is an often overlooked feature. If you have a laptop like a Mac there are different ways to configure the track pad for right-click in addition to the usual left-click (I use the two-finger tap method). One of the menu entries is "save waterfall as JPG". This feature was contributed by Peter, VE3SUN.

    But this is a manual operation. You're probably interested in automatic waterfall recording.

    The kiwiclient waterfall code is currently only for gathering statistics and not saving the waterfall image. But with some code changes it could probably be made to do that.
    kovalr

  • Any tools to save KiwiSDR waterfall to image ?

    jksjks
    To be more precise about the kiwiclient waterfall tools. There are three facilities:
    • The --wf option of kiwirecorder (note not kiwiwfrecorder) prints statistics.
    • Kiwiwfrecorder (note not kiwirecorder) is a specialty program Christoph wrote that saves waterfall data together with GPS timestamps as Python Numpy array format file (.npy) which with some code changes could probably be an image file as well.
    • microkiwi_waterfall.py is a simplified version of kiwirecorder --wf that Marco wrote. A version of which runs his Dynamic SNR Map website http://sibamanna.duckdns.org/sdr_map.html
    kovalr