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Re: [Discuss-gnuradio] Question on FFT (Josh Blum)

From: Josh Blum
Subject: Re: [Discuss-gnuradio] Question on FFT (Josh Blum)
Date: Mon, 20 Aug 2012 10:24:11 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0

On 08/18/2012 01:47 PM, Sam mite wrote:
> Hi Josh!
> Thanks for reply. I change type from complex float to float but still I
> found no negative frequency. I attached the GRC image. What should be the
> type of blocks to get both frequencies ?

The FFT plotter wont plot the negatives frequencies for a float stream.
Since the plot would be symmetric about 0, as Im{s(t)} == 0, it would
just be a waste of screen real estate.


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