2.4.0 Released December 14, 2015 NEW: Bookmarks. NEW: FM RDS decoder using gr-rds. NEW: Frequency tooltips on the FFT area (disabled on Mac). NEW: Filter shape selector (soft, normal, sharp). NEW: Slider to aid zooming on the frequency and dB axes. NEW: RFSpace Cloud-IQ support. NEW: OIRT stereo decoder (Daniil Cherednik). NEW: Input decimator. FIXED: Prevent crash due to device errors while starting the application. FIXED: Use hardware frequency in IQ file names. FIXED: FFT averaging (it can now be disabled). FIXED: "Could not resolve pattern10600" error messages in the terminal. FIXED: Antenna selection error with USRP B210 (Ethan Trewhitt). FIXED: LNB LO value not updated in I/O config dialog. FIXED: Initial gain of rtlsdr devices is no longer 0 dB. FIXED: DSP freeze when setting FM de-emphasis time constant to 0. FIXED: Use correct main category in desktop entry file. IMPROVED: Support up to 1M point FFT. IMPROVED: Fractional PPM correction. IMPROVED: AGC peformance. IMPROVED: FFT performance. IMPROVED: Right click on frequency digit to clear digits. IMPROVED: Robustness against malformed remote control commands. 2.3.2 Released November 28, 2014 FIXED: Pandapter and waterfall widths are limited to 4096 pixels. IMPROVED: Add 2.5 Msps preset for Airspy. 2.3.1 Released August 8, 2014 FIXED: Use correct categories in .desktop file. 2.3.0 Released August 5, 2014 NEW: Support for setting analog bandwidth. NEW: Support for setting gain stages individually. NEW: Remember visibility status of main toolbar. NEW: Restore the geometry of the main window between sessions. NEW: Restore the state and placement of the dock windows. NEW: Nuand BladeRF support. NEW: RF Space SDR-IQ, SDR-IP and Netsdr support. NEW: Airspy support. NEW: Peak detection on the FFT plot. NEW: Max hold on the FFT plot. NEW: Audio streaming over UDP socket. NEW: Remote control through TCP socket. NEW: Set squelch level from current signal/noise level. NEW: Command line option to list existing configurations. NEW: I/Q recording and playback. FIXED: Incorrect handling of decimal values in LNB LO frequency. FIXED: Correctly apply initial LNB LO frequency. FIXED: Audio output device selection on Mac OS X. FIXED: Properly store settings when using Save As function. FIXED: Crash when recording audio whith no rec directory set. FIXED: Only allow audio playback while DSP is running. FIXED: Ensure DSP is stopped when we exit. FIXED: Freeze when switching modes after audio recording. FIXED: Toggling "ignore limits" changes frequency. FIXED: Include gqrx.dekstop file. FIXED: Rename scope.svg to gqrx.svg to avoid confusion. IMPROVED: Gqrx can fit on small screens (900x600 pixels). IMPROVED: Better color gradient for the waterfall. IMPROVED: FFT presentation at high rates and high sizes. IMPROVED: Make release news available through the Help menu. 2.2.0 Released August 8, 2013 NEW: Official Ubuntu PPA and Mac OS X app bundle. NEW: Allow using audio output devices other than the default. NEW: Automatic I/Q phase and gain correction (requires gr-iqbal). NEW: Qt 5 support. NEW: GNU Radio 3.7 support. NEW: HackRF Jawbreaker support. NEW: Funcube Dongle Pro+ support. NEW: Option to select antenna connector on e.g. USRP devices. NEW: Configuration option to choose location of WAV recordings. NEW: Uses gr-audio as default on all platform (pulseaudio still possible). NEW: Command line option to remove configuration file. NEW: Command line option to launch I/O device editor before application. FIXED: Frequency control widget with recent Qt was broken. FIXED: Bug that caused audio FFT data to be leaked into the I/Q FFT. FIXED: Audio recording & playback. FIXED: Proper handling of frequencies above 2147483647 Hz. IMPROVED: Y-axis panning (click-and-drag). IMPROVED: Rescale waterfall when resizing the main window. IMPROVED: gr-audio support on Linux. IMPROVED: Audio gain setting no longer has impact on WAV recording. 2.1.251 Released on March 1, 2013 FIXED: Incorrect device selection in config dialog. 2.1.246 Released on February 29, 2013 NEW: I/Q swapping option. NEW: FFT video filter with non-linear gain (still WIP). NEW: Save and restore FFT settings. NEW: Save and restore receiver options (offset, mode and squelch level). NEW: AM DC removal using IIR filter. FIXED: Removed graphics redraw delay when changing frequency or demodulator. FIXED: Respect RF frequency range of input device. FIXED: Added workaround for pixel error introduced in Qt 4.8. FIXED: Crash when FFT size is smaller than plot width. FIXED: Show correct initial filter preset in filter selector. FIXED: Workaround for 'jerky streaming' when DSP is started using rtlsdr. FIXED: Freeze when channel filter becomes too narrow in AM and FM modes. FIXED: Crash when changing sample rate of the current input device. CHANGED: Show device ID (e.g. rtl=0) in title bar instead of description. IMPROVED: AGC settings moved to dialog window. IMPROVED: Increase LO resolution to 1 Hz. IMPROVED: GUI layout fixes for Mac OS X. IMPROVED: Shortcuts for resetting and re-centering FFT plot after zooming. IMPROVED: Crash recovery in case of bad config file. IMPROVED: Support 50 fps FFT rate and allow disabling FFT. IMPROVED: I/Q DC canceling. 2.1.148 Released on December 9, 2012 NEW: Support for USRP and RTL2832U (rtlsdr) devices. NEW: Pan & zoom on the pandapter axes. NEW: Allow changing FFT size. FIXED: Mac OS X compatibility. IMPROVED: Various improvements to the user iterface. 2.0.0 Released on July 7, 2012 First stable release of C++ version with Funcube Dongle support. 1.x Initial experiments using Python and gr-qtgui.