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E4A01

How does a spectrum analyzer differ from a conventional time-domain oscilloscope?

Select	Answer
A	A spectrum analyzer displays radio frequencies; an oscilloscope displays audio frequencies
B	A spectrum analyzer measures ionospheric reflection; an oscilloscope displays electrical signals
C	A spectrum analyzer displays signals in the time domain; an oscilloscope displays signals in the frequency domain
D	A spectrum analyzer displays signals in the frequency domain; an oscilloscope displays signals in the time domain

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