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PROGRAM:

NAME


gr_plot_fft_c - plot complex binary data using GNU Radio

SYNOPSIS


gr_plot_fft_c: [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

-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]

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