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WorksheetsBlock 4 - 1G - Modulation
Total questions: 13
Worksheet time: 7mins
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
"Amplitude changes in the
intelligence wave causes
frequency changes in the
carrier" is referring to...
Frequency modulation
Amplitude modulation
Percent of modulation should
be between
95-100%
100-105%
9.5-10%
How is bandwidth measured?
From lower sideband to middle side band
From middle band to interplanetary band
From (Carrier - intelligence) to (Carrier + intelligence)
From Carrier to intelligence
