Gqrx SDR 2.9

New features and bugfixes

• Verified Airspy HF+ support
• Always save TCP and UDP host settings
• Fixed application hang when pulseaudio server is not running

Gqrx SDR 2.8

New features

• Remote control command to set LNB LO (LNB_LO).

Bugs fixed

• Inactive Start DSP and Config buttons in toolbar.
• Frequency controller digit not redrawn after a resize.
• Set default mode to AM instead of none.

Miscellaneous improvements

• Detection of gr-osmosdr when installed in custom directory.
• Remote frequency handling.

Gqrx SDR 2.7

New features

• Airspy HF+ integration.
• PlutoSDR integration.
• LimeSDR integration.
• Restore filter low cut and high cut between sessions.
• Restore FM parameters between sessions.
• Restore remote control state between sessions.
• Support for passband when setting mode through remote.
• Widget to enter receiver frequency.
• Button to reset squelch to its default (-150 dB) value.

Bugs fixed

• Keep waterfall zoom level and zoom slider synchronised.
• RDS status is not kept while jumping through bookmark.
• .conf files are deleted when changes are saved.
• Remote control not working if $http_proxy is set.
• Audio rec does not work after trying to play deleted file.
• QtSvg dependency.

Miscellaneous improvements

• Tuning through the remote control interface.
• Increase narrow band receiver rate to 96 ksps (for APT).
• Voiceover interface.
• Input decimator performance.
• Increased frequency limit to 999 GHz (500 GHz LO).
• Hamradio style frequency display.
• Shorter waterfall time spans.

For Ubuntu and derivatives, see http://gqrx.dk/download/install-ubuntu

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Updates

• 2017-08-20: Added Mac OS X bundle

Gqrx SDR 2.6.1

Miscellaneous improvements

• Option to revert frequency controller reset behavior.

Gqrx SDR 2.6

New features

• 1-2-5 scaling on FFT axis.
• Audio waterfall.
• Remember AGC settings between sessions.
• Right-click on FFT resets frequency zoom.
• Separate dB ranges for pandapter and waterfall.
• Raw I/Q mode.
• Portaudio support.
• Command line option to set Qt style (fusion, windows, ...)
• Binary packages for Raspberry Pi 2 and 3 (see below)

Bugs fixed

• Stuttering audio with Pulseaudio backend.
• Use system font on FFT plot (too small font on high res displays).
• Broken FUNcube Dongle Pro+ support on Mac OS X 10.11.4.
• Correct display of negative offsets between -1 and 0 kHz.
• Reset frequency digits below the one that is being changed.
• LNB LO could not be set from I/O configuration dialog.
• Update squelch level when switching between demodulators.
• Set correct filter range when loading bookmark.
• White area on waterfall.
• RFSpace Cloud-IQ support on Mac OS X, RPI binaries and in PPA.

Miscellaneous improvements

• Input decimator performance.
• SDRPlay integration through SoapySDR.
• Only probe for devices when the program is started.
• Allow user to enter ALSA device name.
• Set default audio FFT range to -70...0 dB.
• Restore audio FFT dB scaling between sessions.

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Updates

• Update Oct 9, 2016: Added Mac OS X bundle is now available (for 10.11 or later).
• Update Nov 9, 2016: Added AppImage for 64 bit Linux.
• Update Feb 5, 2017: Updated RPI packages to include soapy-sdrplay and soapy-remote.
• Update Mar 11, 2017: Updated RPI3 package to include experimental LimeSDR support.

Gqrx SDR 2.5.3

New features

• Set and read squelch via remote control socket.

Bugs fixed

• Toolbar appearance on Mac OS X.

Miscellaneous improvements

• Reworked CW reception so that channel is now centered on carrier.
• Shortcuts to view/hide some of the dock widgets.
• Respond to \dump_state remote command (needed by some clients).
• Read remote frequency as double for rigctl compatibility.

For more download options, see http://gqrx.dk/download

PS: OS X bundle has been updated to 2.5.3-2 on 2016/04/03 with a quick fix for issue #357

Gqrx SDR 2.5.2

New features

• Support for Red Pitaya (RX only).
• Build with GNU Radio 3.7.9.

Miscellaneous improvements

• Increased spacing between frequency divisions to prevent overlap.
• Reduced minimum window size requirement to around 800x600 pixels.

For more download options, see http://gqrx.dk/download

Gqrx SDR 2.5

New features

• Read out signal time and frequency on the waterfall (disabled on OS X).
• Save waterfall to graphics file.
• Allow user settable waterfall time span (up to 24 hours).
• Cmake option to build using gr-audio backend (Andrea Merello).

Bugs fixed

• FM stereo (revert to pre-2.4 behavior).
• Mode selector not updated when selecting a WFM OIRT bookmark.
• Show correct filter preset when filter LO/HI corresponds to one.
• Prevent RDS panel from growing by making it scrollable.
• Use correct audio backend on OS X (app bundle only).

Miscellaneous improvements

• Button layouts (mostly on Mac OS X).

For more download options, see http://gqrx.dk/download

Gqrx SDR 2.4

New features

• Bookmarks.
• FM RDS decoder using gr-rds.
• Frequency tooltips on the FFT area (disabled on Mac).
• Filter shape selector (soft, normal, sharp).
• Slider to aid zooming on the frequency and dB axes.
• RFSpace Cloud-IQ support (still testing).
• OIRT stereo decoder (Daniil Cherednik).
• Input decimator.

Bugs fixed

• Prevent crash due to device errors while starting the application.
• Use hardware frequency in IQ file names.
• FFT averaging could not be disabled.
• "Could not resolve pattern10600" error messages in the terminal.
• Antenna selection error with USRP B210 (Ethan Trewhitt).
• LNB LO value not updated in I/O config dialog.
• Initial gain of RTL-SDR devices is no longer 0 dB.
• DSP freeze when setting FM de-emphasis time constant to 0.
• Use correct main category in desktop entry file.

Miscellaneous improvements

• Support up to 1M point FFT.
• Fractional PPM correction.
• AGC peformance.
• FFT performance.
• Right click on frequency digit to clear digits.
• Robustness against malformed remote control commands.

For more download options, see http://gqrx.dk/download

Gqrx SDR 2.3.2

• Pandapter and waterfall widths are limited to 4096 pixels.
• Add 2.5 Msps preset for Airspy.