Hi Martin, Marcus, I am using a N200 + WBX. Gain set on the USRP is equal to 5 dB. Changing the power of the input signal does not change anything. Moreover the output of the signal generator is sent (via a 2way power divider) to a spectrum analyzer and the input signal is ok.
I made some other test. I always have the two replica also with a LO different from zero. Anyway playing a bit with the LO value one of the two replica disappear probably because it goes outside the IF band. In any case I can't understand why the replica is there (?). Concerning IQ imbalance .... how can I measure and compensate ? Using the calibration utility ? ciao Luca
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