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Questions and Answers
What is a major advantage of Delta Modulation compared to Pulse Code Modulation?
What is a major advantage of Delta Modulation compared to Pulse Code Modulation?
- Higher transmission rate
- Better Signal-to-Noise Ratio
- Simpler operation (correct)
- Increased bandwidth efficiency
What is a major disadvantage of Delta Modulation compared to Pulse Code Modulation?
What is a major disadvantage of Delta Modulation compared to Pulse Code Modulation?
- Lower transmission rate
- Increased bandwidth usage
- Complex operation
- Worse Signal-to-Noise Ratio (correct)
What is a common issue associated with Delta Modulation?
What is a common issue associated with Delta Modulation?
- Complex decoder design
- Low transmission rate
- High bandwidth usage (correct)
- Poor signal quality
How does Delta Modulation compare to Pulse Code Modulation in terms of complexity?
How does Delta Modulation compare to Pulse Code Modulation in terms of complexity?
What is the main difference between Delta Modulation and Pulse Code Modulation in terms of signal quality?
What is the main difference between Delta Modulation and Pulse Code Modulation in terms of signal quality?
What is the primary difference between QPSK and OQPSK modulators?
What is the primary difference between QPSK and OQPSK modulators?
What is the advantage of multilevel PSK modulation?
What is the advantage of multilevel PSK modulation?
What is the relationship between the bit rate and the bandwidth for ASK and PSK modulation?
What is the relationship between the bit rate and the bandwidth for ASK and PSK modulation?
What is the purpose of a codec in analog-to-digital conversion?
What is the purpose of a codec in analog-to-digital conversion?
What is the principle behind pulse code modulation (PCM)?
What is the principle behind pulse code modulation (PCM)?
What is the main purpose of the Differential Manchester Encoding scheme?
What is the main purpose of the Differential Manchester Encoding scheme?
What is the maximum modulation rate of the Biphase Pros scheme?
What is the maximum modulation rate of the Biphase Pros scheme?
What is the main advantage of using Scrambling in modulation schemes?
What is the main advantage of using Scrambling in modulation schemes?
What is the main difference between Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK)?
What is the main difference between Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK)?
What is the main advantage of Quadrature PSK over Binary PSK?
What is the main advantage of Quadrature PSK over Binary PSK?
What is the name of the encoding technique that represents data as the presence or absence of signal transitions?
What is the name of the encoding technique that represents data as the presence or absence of signal transitions?
Which encoding technique is used in magnetic recording?
Which encoding technique is used in magnetic recording?
What is the main advantage of Manchester Encoding?
What is the main advantage of Manchester Encoding?
Which encoding technique uses three levels: +A, -A, and 0?
Which encoding technique uses three levels: +A, -A, and 0?
What is a major disadvantage of Multilevel Binary encoding?
What is a major disadvantage of Multilevel Binary encoding?
What is the minimum number of levels required for good voice reproduction with PCM?
What is the minimum number of levels required for good voice reproduction with PCM?
What is the required bandwidth for voice signals?
What is the required bandwidth for voice signals?
What is the data rate required for PCM with 7-bit quantization and 4 kHz bandwidth?
What is the data rate required for PCM with 7-bit quantization and 4 kHz bandwidth?
Why do we modulate analog signals?
Why do we modulate analog signals?
What is the benefit of using data compression?
What is the benefit of using data compression?
What is the advantage of using a higher frequency in transmission?
What is the advantage of using a higher frequency in transmission?
What type of modulation changes the frequency of the carrier signal?
What type of modulation changes the frequency of the carrier signal?
Which of the following is not a type of analog modulation?
Which of the following is not a type of analog modulation?
What is the result of using a higher frequency in transmission, in terms of multiplexing?
What is the result of using a higher frequency in transmission, in terms of multiplexing?
What is the term for the process of modifying a carrier signal to encode information?
What is the term for the process of modifying a carrier signal to encode information?
What is necessary for the receiver to know in order to interpret the signal?
What is necessary for the receiver to know in order to interpret the signal?
What is the purpose of knowing the signal to noise ratio?
What is the purpose of knowing the signal to noise ratio?
What is affected by the rate bandwidth and encoding scheme?
What is affected by the rate bandwidth and encoding scheme?
In Nonreturn to Zero-Level (NRZ-L) encoding, what happens during the bit interval?
In Nonreturn to Zero-Level (NRZ-L) encoding, what happens during the bit interval?
What is a factor that affects signal interpretation?
What is a factor that affects signal interpretation?
What is a consequence of incorrect signal interpretation?
What is a consequence of incorrect signal interpretation?
What is the purpose of clocking in signal transmission?
What is the purpose of clocking in signal transmission?
What is a challenge in signal transmission?
What is a challenge in signal transmission?
What is a consideration in the design of an encoding scheme?
What is a consideration in the design of an encoding scheme?
What is the relationship between signal levels and encoding scheme?
What is the relationship between signal levels and encoding scheme?
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