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Questions and Answers
What is the result wave called after the modulation process?
What is the result wave called after the modulation process?
- Baseband signal
- Modulated carrier
- Modulating signal
- Modulated signal (correct)
Which type of modulation involves changing a sinusoidal signal in amplitude, frequency, or phase proportional to a message signal?
Which type of modulation involves changing a sinusoidal signal in amplitude, frequency, or phase proportional to a message signal?
- Frequency Modulation (FM)
- Pulse Width Modulation (PWM)
- Pulse Amplitude Modulation (PAM)
- Continuous Wave (CW) Modulation (correct)
What is the purpose of modulation for frequency location assignment?
What is the purpose of modulation for frequency location assignment?
- To alter the bandwidth
- To reduce noise and interference
- To transmit a low frequency signal using a high frequency signal
- To assign frequencies for different signals (correct)
Which type of modulation involves changing a periodic train of pulses in amplitude, position, or width proportional to a message signal?
Which type of modulation involves changing a periodic train of pulses in amplitude, position, or width proportional to a message signal?
What is the purpose of modulation to increase efficiency of radiation?
What is the purpose of modulation to increase efficiency of radiation?
Why is modulation used to overcome equipment limitation?
Why is modulation used to overcome equipment limitation?
What type of amplitude modulation is represented by Double-Sideband, Large Carrier (AM/DSB-LC)?
What type of amplitude modulation is represented by Double-Sideband, Large Carrier (AM/DSB-LC)?
What does the modulation index (m) represent in amplitude modulation?
What does the modulation index (m) represent in amplitude modulation?
Which component of the amplitude modulated signal corresponds to the envelop of the carrier?
Which component of the amplitude modulated signal corresponds to the envelop of the carrier?
What is the role of 𝜔_c in amplitude modulation?
What is the role of 𝜔_c in amplitude modulation?
What distinguishes Double-Sideband, suppressed Carrier (AM/DSB-SC) from Double-Sideband, Large Carrier (AM/DSB-LC)?
What distinguishes Double-Sideband, suppressed Carrier (AM/DSB-SC) from Double-Sideband, Large Carrier (AM/DSB-LC)?
