I am using PM modulated signal, and trying to find the connection between the phase noise measurement in [dBc/Hz] and the difference between the amplitude of the sidebands to the amplitude of the CW [dB] using spectrum analyzer.
Does any one has an idea what is the connection between the two ?
Does any one has an idea what is the connection between the two ?
See this post:
view
for a discussion of how the E5052 normalizes signals to a 1Hz bandwidth.
Assuming you use the "power (dBc)" spurious mode, you should see good agreement between a spectrum analyzer and the SSA.
Keep in mind that in phase noise mode, the E5052A/B uses a phase detector - it effectively demodulates the input signal, and displays the result on the screen. This is a phase demodulation, and amplitude modulation is rejected. If your input signal has a mixture of phase & amplitude modulation, the sideband levels will not agree with a spectrum analyzer.