Pulse Analog Modulation MCQ Quiz in मल्याळम - Objective Question with Answer for Pulse Analog Modulation - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക
Last updated on Mar 19, 2025
Latest Pulse Analog Modulation MCQ Objective Questions
Top Pulse Analog Modulation MCQ Objective Questions
Pulse Analog Modulation Question 1:
An Audio signal is Band limited to 5 kHz and is sampled at the minimum sampling rate and then quantized using 256 level quantizer. A raised cosine pulse shaping filter with unity roll off factor is used. If the signal is modulated using 16 QAM scheme, then the bandwidth of the Resultant bandpass waveform is _______kHz
Answer (Detailed Solution Below)
Pulse Analog Modulation Question 1 Detailed Solution
Concept:
The Bandwidth of resultant modulated signal is given by:
where α is the roll off factor
Calculation:
Bit rate
Rb = 2 × 5 × 8 = 80
Pulse Analog Modulation Question 2:
Which of the following statements is a reason for high signal-to-noise ratio in case of FM?
Answer (Detailed Solution Below)
Pulse Analog Modulation Question 2 Detailed Solution
All these factors responsible for high signal to noise ratio:
- There is less noise at frequencies at which FM is used.
- Amplitude limiter are incorporated in FM receivers.
- Interference from other FM transmitter is very less.
Bandwidth-differ in each pulse sequence.