GR_PLOT_FFT(1)                   User Commands                  GR_PLOT_FFT(1)

NAME
       gr_plot_fft - Frequency domain GNU Radio plotting

SYNOPSIS
       gr_plot_fft: [options] input_filename

DESCRIPTION
       Takes a GNU Radio complex binary file and displays the I&Q data versus
       time as well as the frequency domain (FFT) plot. The y-axis values are
       plotted assuming volts as the amplitude of the I&Q streams and
       converted into dBm in the frequency domain (the 1/N power adjustment
       out of the FFT is performed internally). The script plots a certain
       block of data at a time, specified on the command line as -B or
       --block. This value defaults to 1000. The start position in the file
       can be set by specifying -s or --start and defaults to 0 (the start of
       the file). By default, the system assumes a sample rate of 1, so in
       time, each sample is plotted versus the sample number. To set a true
       time and frequency axis, set the sample rate (-R or --sample-rate) to
       the sample rate used when capturing the samples.

OPTIONS
       -h, --help
              show this help message and exit

       -d DATA_TYPE, --data-type=DATA_TYPE
              Specify the data type (complex64, float32, (u)int32, (u)int16,
              (u)int8) [default=complex64]

       -B BLOCK, --block=BLOCK
              Specify the block size [default=1000]

       -s START, --start=START
              Specify where to start in the file [default=0]

       -R SAMPLE_RATE, --sample-rate=SAMPLE_RATE
              Set the sampler rate of the data [default=1.0]

SEE ALSO
       gr_plot_fft_c(1) gr_plot_fft_f(1)

gr_plot_fft 3.10.10.0             2024-05-11                    GR_PLOT_FFT(1)