Frequency in RoF
What is the difference between the frequency in the sine generator and the frequency in the quadrature modulator? if the frequency of the sine generator is the radio frequency that we specify, then what is the function of the frequency in the quadrature modulator? is that carrier frequency? and how to determine the frequency of the quadrature modulator?
Why in the sample used 11 GHz as radio frequency in sine generator and 2 GHz in quadrature modulator?
Here i attached sample from optisystem sample
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