An FM signal has a center frequency of 154.5 MHz, but is swinging between 154.45 MHz and 154.55 MHz at a rate of 500 times per second. Its input intelligence frequency is:
A) 100 kHz
B) 500 Hz.
C) 154.5 MHz
D) 50 kHz.
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An FM signal has a center frequency of 154.5 MHz, but is swinging between 154.45 MHz and 154.55 MHz at a rate of 500 times per second. Its input intelligence frequency is:
A) 100 kHz
B) 500 Hz.
C) 154.5 MHz
D) 50 kHz.