jks

About

Username
jks
Joined
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Roles
Member, Administrator, Moderator
Points
209
Location
Tauranga, New Zealand RF82ci
Callsign
ZL4VO/KF6VO
Additional information
KiwiSDR support email: support@kiwisdr.com

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  • Map field problem [fixed]

    jksjks
    The values in the fields passed to Google maps are prepended with "http://google.com/maps/place/" When Google does the URL rewrite to use https the corruption of the location part of the URL seems to occur. If I specify https to begin with no URL rewrite occurs and the location part of the URL doesn't get changed. That will be the fix in the next update.

    rrobinet

  • Sound recording from multiple opened browse windows for diversity reception?

    jksjks
    On my Mac with "Python 2.7.3 -- EPD_free 7.3-2 (32-bit)" I was able to do this:

    python kiwirecorder.py -s kiwisdr.local -p 8073 -f 1521 -m am

    python kiwirecorder.py -s kiwisdr.local -p 8073 -f 1521 -m iq



    And generate these two files:

    20171118T225528Z_1000000_am.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 12001 Hz

    20171118T225615Z_1000000_iq.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 12001 Hz


    They played back fine, but the iq file didn't sound quite right as you mentioned. It sounded like the I (or Q) channel was just being duplicated in both left/right channels. It was missing the "phase shifting" effect you normally hear between the stereo channels. I'll have a look at this.

    WA2ZKD

  • Who runs Linux for their main OS/Browser [how to run Dream on Linux]

    jksjks
    Under "Chart Selector" the "History > SNR / Audio" chart is a good way to see the SNR trend as propagation changes. It also charts audio drops over time.
    I find that +15 to +18 dB SNR minimum is needed for uninterrupted audio when the broadcaster is using 64 QAM.

    KA7U

  • Offset issue [offset field of label edit panel, fixed input parsing bug]

    jksjks
    That's precisely what it's used for. Click on an existing NDB entry to see (but I guess I don't ship with any NDB entries defined by default anymore). Anyway, when you set an offset in a label you should see that the label vertical line points at the frequency + offset position, but a small triangle appears at the carrier position. That's so you can tell which carrier belongs to the NDB. The offset field can be set to a positive or negative value in case the NDB modulates on only one sideband (or is stronger on one sideband, or you need to place the label on the opposite sideband because there are too many labels already on the other sideband).

    Another NDB assist: the large (outer) + and - frequency step buttons will increment in alternating 400 and 1000 Hz steps to match the common NDB modulation spacings.

    WA2ZKD

  • Remote access kiwisdr using console or Putty

    jksjks
    Alright, looks like this hack worked for him. He was able to change the root account password and use ssh/putty normally. So we can do this again if absolutely necessary to get someone out of a jam with remote access.

    sq5m