Are you interested in purchasing the entire website? If so, we will include an additional premium domain (freetimelearn.com) at no extra cost along with this domain.
Mail : freetimelearn@gmail.com
WhatsApp : +919966463846
Correct Answer : Limiter circuits
Explanation : The receivers in FM contain limiter circuits which restrict the amplitude of the received signal. The noise which only affects the amplitude of the signal causes variations in amplitude of the signal. The limiter circuit clips off any variation in amplitude to filter out most of the noise.
Correct Answer : Option (A) : Bandwidth is higher for binary data than audio signals
Explanation : Since binary data is transmitted in square waves or pulses, they are generally made up of numerous fundamental sine waves. This occupies a huge bandwidth as compared to audio signals which are analog in nature and usually comprise of a lesser number of sine waves.
Correct Answer : Option (D) : 25.75
Explaination : N/S = Frequency deviation by noise / maximum deviation = 156.42/4000 =0.0391S/N = (N/S)-1=25.57.
Correct Answer : Option (C) : 15.366°
Explanation : ?=sin-1(N/S)=sin-1(2/7)=sin-1(0.265)=15.366°.
