Projects / glfer


glfer is a GTK+ application that shows the input signal frequency spectrum in a waterfall display and can also control a transmitter to emit slow-CW (QRSS) signals. The signal to be analyzed can be acquired in real-time from the sound card or can be read from a WAV file. The signal spectrum can be computed using four different spectral estimators. The spectrogram display can be saved as an image; you can choose to save the entire window, or select a rectangular region to save with the mouse.

Operating Systems

Recent releases

  •  30 Jan 2010 09:49

    Release Notes: A small change was made to allow you to select any device in /dev as the control device for the TX, so people using a laptop or netbook with a converter from USB to RS232 can enter /dev/ttyUSB0 or similar.

    •  07 Oct 2008 21:33

      Release Notes: This version corrects a small bug affecting the FFT window type selection when using the saved application preferences that was present in version 0.4.0 and earlier.

      •  14 Sep 2008 23:23

        No changes have been submitted for this release.


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