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From: | John Ackermann N8UR |
Subject: | [Discuss-gnuradio] Change filter parameters in running flowgraph? |
Date: | Thu, 2 Nov 2017 13:05:01 -0400 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
In the low pass filter block I the decimation value is set to "decimation." That seems to work and I can see the span of the QT Frequency Sink change as the decimation value changes.
But I also use the decimation parameter to determine the cutoff frequency ((samp_rate/decimation)/2) and transition width ((samp_rate/decimation)/10). However, these don't seem to change dynamically when the flowgraph is running-- the filter remains at the width it was when the flowgraph started.
Is there a way to have the filter change as the decimation parameter changes?
Thanks, John
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