jks

v1.449 April 3, 2021

  SNR measurement adjustments on admin page control tab:

    Adjust recording interval: 1, 4, 6 or 24 hours per measurement.

      One week's worth of data is retained in the rolling buffer.

      New JSON field "seq" (incrementing) to help identify most recent entry.

    In addition to existing frequency measurement intervals 0-1800 and 1800-max kHz

      added 0-1800, 1800-10000 10000-20000 and 20000-max

      These are similar to what Marco uses (sibamanna.duckdns.org/sdr_map).

    Selectable local/UTC timestamp.

SET auth t=kiwi p=

SET AR OK in=12000 out=44100

SET squelch=0 max=0

SET genattn=0

SET gen=0 mix=-1

SET ident_user=kiwirecorder.py

SET mod=am low_cut=-5000 high_cut=5000 freq=7550.000

SET agc=1 hang=0 thresh=-100 slope=6 decay=1000 manGain=50

SET keepalive

MSG client_public_ip=[your public ip address as seen by the Kiwi]

MSG rx_chans=4

MSG chan_no_pwd=0

MSG chan_no_pwd_true=0

MSG is_local=0,1

MSG max_camp=4

MSG badp=0

MSG version_maj=1 version_min=447

MSG load_cfg= (large amount of configuration data omitted)

MSG center_freq=15000000 bandwidth=30000000 adc_clk_nom=66666600

MSG audio_init=1 audio_rate=12000 sample_rate=12001.062106

MSG stats_cb={"ct":4633,"ce":0,"cf":1000,"cc":0,"cu":[51],"cs":[49],"ci":[0],"ac":0,"wc":0,"fc":0,"ah":0,"as":0,"sr":12001.062106,"ga":0,"gt":0,"gg":0,"gf":0,"gc":66.665900,"go":0,"gr":"RF82ci","ad":0,"au":0,"ae":0,"ar":0,"an":4,"an2":32,"ap":[0,7439,0,0],"ai":[0,2121,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"sa":9,"sh":9,"tu":"04:04","tl":"17:04","ti":"NZDT","tn":"Pacific%5c%2fAuckland"}

SND [binary sound data]

SND [binary sound data]

...

SET auth t=kiwi p=

SET zoom=0 cf=7550.000000

SET maxdb=-10 mindb=-110

SET wf_comp=0

SET wf_speed=1

SET ident_user=kiwirecorder.py

SET keepalive

MSG chan_no_pwd_true=0

MSG max_camp=4

MSG badp=0

MSG version_maj=1 version_min=447

MSG center_freq=15000000 bandwidth=30000000 adc_clk_nom=66666600

MSG kiwi_up=1 rx_chan=0

MSG extint_list_json=%5b%22colormap%22,%22cw_decoder%22,%22devl%22,%22DRM%22,%22fax%22,%22FFT%22,%22fsk%22,%22IBP_scan%22,%22iframe%22,%22iq_display%22,%22loran_c%22,%22navtex%22,%22noise_blank%22,%22noise_filter%22,%22sig_gen%22,%22S_meter%22,%22SSTV%22,%22TDoA%22,%22timecode%22,%22wspr%22%5d

MSG wf_fft_size=1024 wf_fps=23 wf_fps_max=23 zoom_max=14 rx_chans=4 wf_chans=4 wf_chans_real=4 wf_setup

MSG zoom=0 start=0

MSG wf_fps=1

MSG request_dx_update

W/F [binary waterfall data]

W/F [binary waterfall data]

...

v1.446 March 28, 2021

  WSPR extension:

    By request: Added 6 & 13 MHz ISM bands (UK balloon-mobile operation).

    Can restart autorun decoders via an admin page button instead of server restart.

  Windows 10 audio "popping" problem:

    Looked for memory addressing errors and leaks with the Clang address sanitizer.

    A few minor issues fixed but nothing that changes the audio problem.

    This was expected, but also had to be ruled out.

v1.445 March 24, 2021

  SNR measurement:

    Take transverter frequency offset into account.

    Display SNR value(s) on user (top bar) and admin pages (status tab).

  Added SAM PLL loop control to audio tab.

    Has a slow loop setting "DX" that can be used to better track weak stations.

v1.444 March 23, 2021

  Include two most recent SNR values in /status query. This implies all the SNR values

    for public Kiwis will be aggregated in the rx.kiwisdr.com/index.html file

    HTML comments.

  TDoA extension:

    Improved help panel contents.

    Added warning against prematurely using too many sampling stations because of

      the large number of computation timeouts we see on the server.

v1.443 March 22, 2021

  Added automatic SNR measurement:

    Every 6 hours (4 times daily) a Kiwi will connect to a free channel (if available)

    and measure its own SNR. These results are available in JSON format from the

    URL: my_kiwi:8073/snr (adjust Kiwi name and port number as required).

    This URL is publicly accesible. Disable on the admin page, control tab if you

    don't want to share this information.

    The measurement details can be easily changed. Suggestions welcome.

    SNR is currently defined in the same way as used by the sites snr.kiwisdr.com

    and snr2.kiwisdr.com, i.e. waterfall dBm values, sorted, noise = 50th percentile

    value (median), signal = 95th percentile value, SNR = signal - noise.

    Two measurement bands are recorded: 0-30 MHz and 1.8-30 MHz in an attempt to

    filter out the AM BCB. The JSON data also contains min/max dBm values and a

    timestamp (local time unless the "UTC" value is set).

  Added "reload page" button to queueing panel ("camp" parameter is removed from URL)

    Use to quickly access any Kiwi redirection that might be available.

  Autoscale button and aperture auto mode now disregard masked areas from calculations.

  Admin page UI changes:

    GPS RSSI now red color for sats not actually acquired (i.e. no subframe decoding)

    Registration now requires a valid location field (for benefit of map.kiwisdr.com)

v1.441 March 15, 2021

  Audio camping bug fixes:

    URL redirect now respects URL camp parameter. More work needed for other cases.

    Audio now plays on Safari.

  Added separate CW AGC threshold control.

    Typically a lower AGC threshold is required for very narrow passband settings to

    avoid low sensitivity. Since narrow passbands are most often associated with the

    CW/CWN modes it was decided to add a separate AGC threshold control active only in

    those modes. The original threshold control applies to all other modes.

    The two are stored in their own separate browser cookies.

  Fixed bugs in the Audio FFT display (the one that appears in 8-channel mode when more

  than two channels are busy, or if the URL "no_wf" parameter is given):

    The LSB passband is drawn in the same place as the actual FTT output.

    The FFT display bins were flipped to be correct (i.e. low vs high frequency).

    Autoscale mode works better than before.

  Disabled compression ("comp") button in DRM/SAS/QAM modes since it has no meaning

    and effect in these modes.

  Fixed shift-click in SWBC bands not selecting nearest 5 kHz boundary.

  Fix long audio latency on browsers that display "Click to start OpenWebRX" overlay.