Ettus USRPs are not calibrated measurement devices, so be a bit careful with actually measuring power with them: you'll need to calibrate things yourself for every sample rate, carrier frequency, antenna, temperature … combination.
Best regards, Marcus On Tue, 2019-07-16 at 17:37 +0100, Simona Sibio wrote: > Hi Marcus and Sumit, > > Thank you for the answer. > I tried with different sampling rate until 5M. > And I connected the spectrum analyzer to measure the power. > Practically, I would like to measure the power also in the receiver. > Best Regards, > > Simona > > Il giorno mar 16 lug 2019 alle ore 17:20 Müller, Marcus (CEL) > <muel...@kit.edu> ha scritto: > > Hi Simona, > > > > * think about what you're *actually* transmitting in bandpass when you > > have a constant baseband > > * A USRP still can't be used at a sampling rate of 32 kS/s and will > > most definitely complain about that. Use a higher rate. > > > > Best regards, > > Marcus > > > > On Tue, 2019-07-16 at 17:05 +0100, Simona Sibio 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 > > > > > > > > > > > > _______________________________________________ > > > > Discuss-gnuradio mailing list > > > > Discuss-gnuradio@gnu.org > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
