Re: [Discuss-gnuradio] USRP GNU radio receiver

Ok, so for a constant source, in the time domain you will see a flat signal only! Try connecting a spectrum analyzer and you shud see a peak at DC becz Fourier transform of constant signal is impulse. 

And yes, as Marcus said, increase the sampling rate! 

On Tue, 16 Jul 2019 at 18:06, Simona Sibio <ssibio2@gmail.com> wrote:

Thank you for the assistance.

I put the module "constant source" in my flow grap.

With this module, I can choose witch amplitude I want to send.

I attached the flow graph.

And, I would want to read these values in the receiver.

Simona

Il giorno mar 16 lug 2019 alle ore 16:58 sumit kumar <sumitstop@gmail.com> ha scritto:

Hi Simona, what is the "constant signal" here ? 

On Tue, 16 Jul 2019 at 17:54, Simona Sibio <ssibio2@gmail.com> wrote:

Hi all,

I want to use GNU radio to measure the amplitude and the phase of a signal.

I send a constant signal with the transmitter USRP but in the receiver there is a flat signal with amplitude 0 and offset 0.

I tried to send a sine signal and the receveir works fine.

How can I do to send only a constant and measure the amplitude?

Thank you for your time.

Simona

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Sumit Kumar

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Sumit Kumar