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I have a medical office call box/light system that is older probably 20 year old and they moved the main panel that the Drs see to know when there are patients waiting and since they moved it, it is intermittently not working. The system uses a siginal that is transmitted over the AC connection/plug. I am new to oscilloscopes but purchased one to

I'm trying to pull IQ data out of an EXA N9010B for post-processing. I've managed to capture the I/Q samples and dump them to a file and analysed its FFT spectra.  The signal is a LTE, QPSK in a 20MHz signal generated by Signal Studio.   I used Excel (limited to 4096 FFT points) to display the FFT spectra. It appears that it is not