Custom Spectrum Analyzer Block?

GNU Radio
1

Hello Group;

I am wondering if anyone has a custom spectrum analyzer block or can
tell me
how to build one ??

I know that GRC comes with the “FFT GUI Sink”, but that is just what it
sounds like.

What I am looking for is a spectrum analyzer type display, where you can
set
a start-stop frequency or

a center frequency and bandwidth. (Obviously, within the constraints of
nyquist.).

A peak search would be handy, but not absolutely necessary.

Any ideas or suggestions out there ???

Bill

2

On 04/27/2012 07:53 AM, William Pretty Security wrote:

sounds like.

That would be nice. But none of the GUI sinks have a peak search feature
(peak hold though).

Any ideas or suggestions out there ???

Well, as far as the tuning part, you could put this together pretty
easily in GRC with a couple of widgets for parameter entry.

There is also such an app installed with gnuradio in your system path
called uhd_fft

-josh

3

On Fri, Apr 27, 2012 at 04:25:27PM -0700, Josh B. wrote:

I know that GRC comes with the “FFT GUI Sink”, but that is just what it
sounds like.

What I am looking for is a spectrum analyzer type display, where you can set
a start-stop frequency or

a center frequency and bandwidth. (Obviously, within the constraints of
nyquist.).

While it’s not quite what you’re looking for, gr-specest comes with a
GUI that does different things than uhd_fft.py does.

https://www.cgran.org/wiki/SpecEst

MB

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