QIRX SDR

History


Version 0.9.3, October 2017

  • DAB:

    DAB+ allowed in "Short Subchannels"
    Decoding of DAB (MP2) with audio sample rates of 24000 and 48000Hz.
    Mapping table access error fixed. Inhibited decoding of e.g the BBC services.
    Thanks to Richard Strang from Audio Design, having provided us with the necessaray raw samples for this bug fixing.
    FFT starting position within the guard interval, for more complex and mobile environments. Auto and manual adjust.
    Symbols which do not contribute to a service are ignored. About 15% performance gain.

  • Raw Recording and Playback:

    Stopwatch Pause/Continue feature for playback fixed.

  • Known Issues:

    Rare crashes, presumably due to a race condition in cooperation with libfaad. Exact reason could not be found yet.
    On termination, process hangs sometimes.


Version 0.9.2, September 2017

  • General GUI Form:

    Horizontal Splitters

  • Layout:

    Menu item for predefined GUI layouts.
    Scanner hidden per default.
    Large Waterfalls possible.

  • Device Frontend:

    Slow AGC.

  • DAB:

    Coarse frequency synchronization changed to correlation-based, for improved speed and robustness.

  • Raw Recording and Playback:

    Control element improved. During Recording and Playback, visual feedback by blinking button (red and green, respectively).
    Pause feature for playback.
    Icon to display raw file information.

  • Audio (.WAV) Recording:

    WAV Recording control with file and duration informations.
    Visual feedback by red blinking button.

  • Other:

    qirx.config enhanced. Storing of layout and last-used informations.

  • Bug Fixing:

    Multiple simultaneous .WAV recordings.

  • Known Issues:

    Rare crashes, presumably due to a race condition in cooperation with libfaad. Exact reason could not be found yet.
    On termination, process hangs sometimes.


Version 0.9.1, July 2017

  • Device Frontend:

    Center Frequency Correction in kHz.

  • General Receivers:

    Waterfall Viewer

  • DAB:
    Window Layout
    Legacy DAB (MP2)
    Synchronization of recorded files
    Enhanced manual synchronization control
  • Raw Recording:
    Playback Control
  • Bug Fixing:
    .WAV file size limitation removed


Version 0.9.0, May 2017

Initial Version