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[Discuss-gnuradio] QT GUI frequency plot scale

From: Michael Rahaim
Subject: [Discuss-gnuradio] QT GUI frequency plot scale
Date: Tue, 14 Oct 2014 16:07:27 -0400

Hi all,

I'm going through some of the GNU Radio tutorials and I noticed that the frequency axis for the QT GUI frequency sink is incorrect for real valued signals (e.g., sample rate of 10k shows -2.5k to 2.5k). I found a bug report (#541) from last year with the issue resolved in 3.7.0, but I'm working with version I didn't notice any other bug reports regarding this issue.

Note: The frequency plot in QT GUI sink is scaled correctly. Also, updating the sampling rate while the flow graph is running corrects the scale.


Mike Rahaim
PhD Candidate
Boston University, Boston, MA

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