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WorksheetsF023 TAv 21 - Comms EO 21.02
Total questions: 10
Worksheet time: 6mins
1. In Amplitude Modulation, the values of ___________ changes in accordance with the freq variations of the modulating signal.
Carrier Frequency
Carrier Amplitude
Carrier Phase
What happens when the amplitude of the modulating signal is greater than the amplitude of the carrier?
Amplification
Distortion
Attenuation
Function of frequency mixer in super heterodyne receiver is
Amplification
Filtering
Multiplication of incoming signal and the locally generated carrier
The diagram shows the response characteristics of what type of filter?
Low Pass Filter
High Pass Filter
Band Pass Filter
Band Stop Filter
The diagram shows the response characteristics of what type of filter?
Low Pass Filter
High Pass Filter
Band Pass Filter
Band Stop Filter
The diagram shows the response characteristics of what type of filter?
Low Pass Filter
High Pass Filter
Band Pass Filter
Band Stop Filter
The diagram shows the response characteristics of what type of filter?
Low Pass Filter
High Pass Filter
Band Pass Filter
Band Stop Filter
In the diagram, which letter represents the component that;
reduces 2nd channel interference, prevents IF break through, prevents local oscillator ration and improves the receiver's SNR
(a)
In the diagram, which letter represents the component that;
generates a signal that is different from the required signal by the intermediate frequency
(a)
