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Re: [Discuss-gnuradio] accumulate spectrum

From: madengr
Subject: Re: [Discuss-gnuradio] accumulate spectrum
Date: Tue, 31 May 2016 06:40:54 -0700 (MST)

So if I swap positions of the "throttle" and "vector to stream", and setting
throttle for rate of 30 and 1024 items, then it works fine.  It seems the
throttle has to be immediately after the file source, otherwise it gets
fouled up.

madengr wrote
> Try this:
> https://www.dropbox.com/s/7xsg4arx5h3gvah/spectrum.grc?dl=0
> The integrate with decimation is what you want.  Starting at 32 ksps with
> a 1024 length FFT length yields 31.25 vector/sec.  Then an integrate with
> decimation by 32 averages down to 0.98 vector/sec.
> However when I try reading those back from the file, I'm not getting the 1
> ksps I should be getting.  I have to set that throttle at 8000 to get the
> proper update rate.
> Lou

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