The KiwiSDR 2 online store is open for orders! Please visit kiwisdr.nz
Please visit kiwisdr.com (documentation) and kiwisdr.nz (online store)

jks

About

Username
jks
Joined
Visits
31,417
Last Active
Roles
Member, Administrator, Moderator
Points
294

Reactions

569Helpful492Awesome

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

    jksjks
    So with that commented out the Kiwi status panel shows "(unknown location)". I guess he didn't want that to appear. The server is supposed to figure out the geolocation when this occurs so I should figure out why that's not happening.


    KA7U

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

    jksjks
    @zfyoung,

    Your original post mentioned diversity reception, but also IQ mode. What exactly did you have in mind that was IQ-related? Were you thinking of traditional frequency diversity where kiwirecorder would open two connections on two different frequencies but merge the mono audio from each into a 2-channel file? (as L/R stereo) Or something more complicated?

    KA7U

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

    jksjks
    Ron, when I was looking through the code I noticed he seemed to go to some trouble to keep the .wav header information updated as the file length grows. Probably so external readers of the file always see a consistent state as you noticed.

    KA7U

  • 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