Provided by: gnuradio_3.7.9.1-2ubuntu1_amd64 
NAME
gr_plot_psd_f - plot power spectral density using GNU Radio
SYNOPSIS
gr_plot_psd_f: [options] input_filename
DESCRIPTION
Takes a GNU Radio binary file (with specified data type using --data-type) and displays the I&Q data
versus time as well as the power spectral density (PSD) 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. 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. Finally,
the size of the FFT to use for the PSD and spectrogram plots can be set independently with --psd-size and
--spec-size, respectively. The spectrogram plot does not display by default and is turned on with -S or
--enable-spec.
OPTIONS
-h, --help
show this help message and exit
-B BLOCK, --block=BLOCK
Specify the block size [default=8192]
-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]
--psd-size=PSD_SIZE
Set the size of the PSD FFT [default=1024]
--spec-size=SPEC_SIZE
Set the size of the spectrogram FFT [default=256]
-S, --enable-spec
Turn on plotting the spectrogram [default=False]
SEE ALSO
gr_plot_char(1) gr_plot_const(1) gr_plot_fft_c(1) gr_plot_fft_f(1) gr_plot_float(1) gr_plot_int(1) gr_plot_iq(1) gr_plot_psd_c(1) gr_plot_psd_f(1) gr_plot_qt(1) gr_plot_short(1)