Hello, I am currently testing two USRP radios with 3 WBX transcievers.
When I test the receive path, I would use gnuradio companion and go from USRP source to FFT plot. However, I see that at every center frequency of the FFT window there is a signal even though I am not inputting anything. The signal power is about 0 dBm. Also, if I inject a signal, the power of the signal is shown to be much higher than the true power I am sending through. For example, when I send a -50 dBm signal it shows up to be +30 dBm and I've tried using multiple signal generators. So now I'm stuck. How do I fix this? Thank you.
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