Communication Systems In EM waves, polarization Is due to transverse nature of waves Is always vertical in an isotropic medium Is caused by reflection Results from longitudinal nature of waves Is due to transverse nature of waves Is always vertical in an isotropic medium Is caused by reflection Results from longitudinal nature of waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 106 kHz 10.7 MHz 1.07 MHz 455 kHz 106 kHz 10.7 MHz 1.07 MHz 455 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are 200 and 1.01 200 and 10.01 200 and 100.1 200 and 200 200 and 1.01 200 and 10.01 200 and 100.1 200 and 200 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 80 kHz 75 kHz 70 kHz 65 kHz 80 kHz 75 kHz 70 kHz 65 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation. Both A and R are correct and R is correct explanation of A A is wrong but R is correct A is correct but R is wrong Both A and R are correct but R is not correct explanation of A Both A and R are correct and R is correct explanation of A A is wrong but R is correct A is correct but R is wrong Both A and R are correct but R is not correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
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