Block 4 - 1G - Modulation

Which of these describe modulation

• The process of varying SOME characteristics of one frequency with a characteristic of another

• The process of varying ALL characteristics of one frequency with a characteristic of another

• The process of varying SOME characteristics of one voltage with a characteristic of another

• The process of varying ALL characteristics of one voltage with a characteristic of another

Which of these is the intelligence signal?

• The information to be transmitted

• The RF signal to be modulated

• A carrier signal that

  has been changed by the intelligence signal

Which of these describes the composite signal?

• A carrier signal that

  has been changed by the intelligence signa

• the RF signal to be modulated

• the information to be transmitted

Which of these describes the carrier signal?

• A carrier signal that

  has been changed by the intelligence signa

• the RF signal to be modulated

• the information to be transmitted

Heterodyning is the process of mixing (a)   frequencies across a non linear device.

4 frequequencies are produced during heterodyning. The two originals and...

• The sum

• The gnome

• The difference

• The dividen

Bandwidth is...

• Amount of space the composite frequency and the sides occupy in

  the frequency spectrum

• Amount of space the carrier frequency and the sides occupy in

  the frequency spectrum

• Amount of space the intelligence frequency and the sides occupying the same frequency spectrum

How

much the amplitude of the

carrier frequency is increased

or decreased by intelligence

frequency is referring to...

• Percent of gnomes

• Percent of modulation

• Percent of intelligence

• Percent of carriers

Amount of deviation is...

• Amount of deviation is how much the frequency of the carrier

  is increased or decreased

• Rate of deviation is how often the frequency of the carrier is

  increased or decreased

Rate of deviation is...

• Amount of deviation is how much the frequency of the carrier

  is increased or decreased

• Rate of deviation is how often the frequency of the carrier is

  increased or decreased