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! [image: Screenshot from 2019-07-16 18-29-17.png]
On Tue, 16 Jul 2019 at 18:06, Simona Sibio <ssib...@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 <sumits...@gmail.com> > ha scritto: > >> Hi Simona, what is the "constant signal" here ? >> >> On Tue, 16 Jul 2019 at 17:54, Simona Sibio <ssib...@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 >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> >> >> -- >> Sumit Kumar >> >> >> -- Sumit Kumar
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