This set of Analog Communications MCQs focuses on “Comparison Between PM and AM”. 1. Which of the following oscillator is not used in frequency modulation? a) Colpitts Oscillator b) Crystal Oscillator c) Hartley Oscillator d) Both Colpitts and Crystal Oscillator 2. In frequency modulation, noise gets decreased if we decrease deviation. a) True b) False … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Noise in Phase Modulation”. 1. In AM receiver, the oscillator frequency is always ________ a) lower than signal frequency b) higher than signal frequency c) equal to signal frequency d) equal to 1KHz 2. Which of the following receiver does not have … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Threshold Effect in FM”. 1. Which statement is true about thermal noise power? a) it is proportional to B b) it is proportional to √B c) it is proportional to B⁄2 d) it is proportional to √B⁄2 2. Cosmic noise is caused … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Noise in FM”. 1. What is the probability density function of thermal noise? a) Poisson b) Gaussian c) Binomial d) Bessel 2. What is the spectral density of white noise? a) varies with bandwidth b) varies with frequency c) constant d) infinite … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Noise for AM Wave”. 1. The image frequency of a superheterodyne receiver ___________ a) is created within the receiver itself b) is due to insufficient adjacent channel rejection c) is not rejected by the IF tuned circuits d) is independent of the … Read more
This set of Analog Communications online quiz focuses on “Noise for SSB-SC”. 1. The IF bandwidth of a radar receiver is inversely proportional to the __________ a) pulse repetition frequency b) pulse width c) pulse amplitude d) pulse code 2. Frequency components of an AM wave are? a) Carrier frequency (ωc) with amplitude A b) … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Noise for DSB-SC”. 1. The discone antenna is ________ a) useful direction-finding antenna b) used as a radar receiving antenna c) circularly polarized d) useful as VHF and UHF receiving antenna 2. Which one of the following is not an omnidirectional antenna? … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Noise in AM”. 1. Why a helical antenna is used for satellite tracking? a) because of its circular polarization b) because of its broad bandwidth c) because of its low bandwidth d) because of rectangular polarization 2. Which one of the following … Read more
This set of Basic Analog Communications Questions and Answers focuses on “Practical Aspects of Sampling”. 1. An antenna can be matched to a feed line by using an LC network only. a) True b) False 2. An array with one driven element, a reflector, and one or more directors is called ________ a) Yagi b) … Read more
This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Asynchronous TDM”. 1. Which is the standard reference antenna for the directive gain? a) Isotropic antenna b) Marconi antenna c) Helical antenna d) Log Periodic antenna 2. Which one of the following reasons for the use of a ground screen with antennas … Read more
