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transmit and receive signals on gnu radio+fmcomms3

Question asked by shlomi-bendavid on Jun 4, 2017
Latest reply on Jun 9, 2017 by pcercuei

hi guys,

we have question about gnu radio software. a week ago we run a simple transmit and receive operation of a sine wave and on the frequency sinks we saw a matching frequency. more over, we inserted a simple qt range module and we saw our signals moving on the frequency graph together.

now we run the same implementation and we send a good signal but receive non expected signal at all.

there is a weird signal in 0.019MHz and we send sine wave of 0.5MHz.


we use zedboard + fmcomms3.



the simulation:


the lines at the bottom

someone see the problem?