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Re: [Discuss-gnuradio] Question about the FFT

From: Josh Blum
Subject: Re: [Discuss-gnuradio] Question about the FFT
Date: Sat, 24 Oct 2009 00:19:41 -0700
User-agent: Thunderbird (X11/20090817)

The second peak have to be:

                                           Frequency: 3kHz
                                           Amplitudo: -45dB

The second peak is 20*math.log10(9) dB down from the first one. Thats exactly what you should expect:


The amplitudo of the first peak also not correct.

You should take a look at logpwrfft.py


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