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Re: [Discuss-gnuradio] Scaling output in fftsink2.py

From: Johnathan Corgan
Subject: Re: [Discuss-gnuradio] Scaling output in fftsink2.py
Date: Wed, 12 Mar 2008 10:55:25 -0700

On 3/10/08, Tim Meehan <address@hidden> wrote:

> fft_sink_c() and fft_sink_f() in fftsink2.py scale the output by the fft
> size using -20 log10(fft_size)
> I think the intent is to make the output level independent of fft size.
> Currently the output is a function of fft size.  See attached code
> (fftsink2_example.py).
> I think the scaling should be -10 log10(fftsize) .  Please see the attached
> suggested patch to fftsink2.py

You are correct.  This has been updated on the trunk as of r7997.

Johnathan Corgan
Corgan Enterprises LLC

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