The device which superimposes information onto a high-frequency signal for trans

Question

The device which superimposes information onto a high-frequency signal for transmission is called: a demodulator the carrier a modulator the intelligence The two types of angle modulation are: amplitude and frequency modulation phase and frequency modulation pulse and frequency modulation phase and amplitude modulation In an FM modulator, the amplitude of the intelligence signal determines the: rate of the carrier frequency deviation. power level of the FM signal. phase angle of the carrier frequency component. amount of carrier frequency deviation. Overmodulation: results when the modulation index exceeds unity is undesirable because it produces sideband splatter causes the AM signal to become distorted so that the receiver cannot produce a clean replica of the original intelligence signal all of the above Which of the following is an advantage of transmitting in a digital format? less sensitive to noise less crosstalk lower distortion levels all of the above

Explanation / Answer

a)modulator

b)phase and frequency modulation

c)rate of the carrier frequency deviation

d)results when the modulation index exceeds unity i.e,kpAM>>1

e)all of the above

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