Re: [Discuss-gnuradio] Custom Spectrum Analyzer Block ?

[Josh Blum]

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

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