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Re: [Discuss-gnuradio] missing internal callbacks

From: Robert McGwier
Subject: Re: [Discuss-gnuradio] missing internal callbacks
Date: Thu, 3 Jul 2014 23:50:53 -0400

It is a very difficult thing to implement practically and is so close to necessary limitation that you should just consider it necessary and move on.


On Thu, Jul 3, 2014 at 5:40 PM, <address@hidden> wrote:

when creating a flowgraph in GRC there are times I would like to change the decimation on-the-fly with a gui slider.  However, this does not work because the decimation factor in blocks such as the AM Demod or Decimating Fir Filter does not have an internal callback (as I understand it).  My main purpose is to be able to dynamically change the sampling rate to re-scale the x-axis in a gui fft sink while the flowgraph is operating.  Is there a way around this?  Is this a necessary limitation, or just something nobody has gotten around to implementing?



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Bob McGwier
Co-Owner and Technical Director, Federated Wireless, LLC
Professor Virginia Tech
Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY
Faculty Advisor Virginia Tech Amateur Radio Assn. (K4KDJ)

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