Re: Is there a Gnu Radio block to compute the power of a signal?

[Marcus Müller]

That's almost certainly not an answer to the question you're posing, namely "How do I 
measure the power of a specific class of signals".
A function probe is just a method of getting some data out of a flowgraph, and it's almost 
never the appropriate solution (function probes are really more for debugging, or very 
sporadically/randomly updated GUIs and such, not for signal processing).

First of all, it's important to note that basically none of the SDRs you'd attach to GNU 
Radio come calibrated by default – so the numbers you see in GNU Radio are only 
proportional to some amplitude of electrical field. So, digital powers are only 
proportional to the powers on the air, but can easily be calculated taking the squared 
magnitude of your complex samples.

Best regards,
Marcus

On 18.11.21 11:45, Rachida SAROUI wrote:
> Thank you very much!
>
> Le jeu. 18 nov. 2021 à 11:40, Van-Dung PHAM <dungdkt27@gmail.com 
> <mailto:dungdkt27@gmail.com>> a écrit :
>
>     Hi, you can use the Function Probe in GNU Radio to measure the Power in dBm
>
>     Vào Th 5, 18 thg 11, 2021 vào lúc 11:23 Rachida SAROUI 
> <rachidasaroui@gmail.com
>     <mailto:rachidasaroui@gmail.com>> đã viết:
>
>         Hello everyone,
>
>         I'm looking for a gnuradio block or a method to determine the power of 
> a received
>         LORA signal from an arduino. Can anyone help me please?
>
>         Thank you
>
>
>
>     -- 
>     -----------------------------------------------------------------------
>     Van-Dung,PHAM