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What is pulse position modulation (PPM)? Explain modulation and demodulation techniques used for PPM?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Explain PPM generation and degeneration method?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Explain sampling theorem for bandpass signals with proof. And also explain anti-aliasing filter?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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24k
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State and prove the sampling theorem for low pass and limited signal. Explain aliasing error ?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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State and prove sampling theorem for low pass signal .What is Nyquist rate?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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5.8k
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A sinusoidal carrier has amplitude of 20V and a frequency of 30kHz. It is amplitude modulated by a sinusoidal voltage of amplitude 3V and frequency 2kHz.Modulated voltage is developed across 50ohm R
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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4.3k
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Find the given values using the following information:
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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A sinusoidal carrier has amplitude of 10v and a frequency of 100 kHz. It is amplitude modulated by a sinusoidal voltage of amplitude 3v and frequency 500Hz.Modulated voltage is developed across 75ohm
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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11k
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Explain Ratio Detector
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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10k
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Explain Foster seeley discriminator and compare the performance of Foster seeley and Radio detector.
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
4
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Explain the Armstrong method for FM generation?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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78k
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Explain Balanced Modulator
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Pre-emphasis and De-emphasis
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Define selectivity of Reciever?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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what is Image frequency and its rejection?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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1
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Explain Fidelity curve
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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101k
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Explain the following with reference to radio receivers: (i) Selectivity (ii) Fidelity (iii) Sensitivity (iv) Double spotting
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
1
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1
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11k
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what is meant by sensitivity of a radio receiver and how it is improved?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
4
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1
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24k
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Explain the concept of Image frequency & its rejection. Discuss double spotting.
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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1
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28k
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What are the limitations of TRF receiver. Explain how these limitations are avoided using superheterodyne receiver.
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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12k
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State advantage of SSB over DSBFC. Explain filter method to generate SSB AM
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Explain in detail generation of any method used in AM?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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4.6k
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Explain friss transmission formula.
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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1
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17k
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What are types of Internal Noise?
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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Define signal to noise ratio.
principles of communication network updated 5.4 years ago by teamques10 ★ 70k
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