Hello all,
The Frequency Sink block of GNU Radio gives a spectrum plot where the y-axis is labelled as "Relative Gain (dB)".
My question is that with respect to what this "relative" data is being taken?
I plotted one 1*e^(j*2*pi*f*t) and in the spectrum response I got -8.7 dB at frequency f. I am confused about how this calculation is being done.
Thank you.
With regards,
Shuvodip
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