Communication Systems In EM waves, polarization Is due to transverse nature of waves Is caused by reflection Is always vertical in an isotropic medium Results from longitudinal nature of waves Is due to transverse nature of waves Is caused by reflection Is always vertical in an isotropic medium Results from longitudinal nature of waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Varactor diode modulator Armstrong modulator Reactance FET modulator Reactance bipolar transistor Varactor diode modulator Armstrong modulator Reactance FET modulator Reactance bipolar transistor ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 35 kHz 1280 kHz 70 kHz 10 kHz 35 kHz 1280 kHz 70 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In practical commercial FM system, channel bandwidth is 150 kHz 100 kHz 108 MHz 88 MHz 150 kHz 100 kHz 108 MHz 88 MHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as High frequency Very high frequency Medium frequency Low frequency High frequency Very high frequency Medium frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Improved efficiency Better linearity The lower modulating power requirement High power output per transistor Improved efficiency Better linearity The lower modulating power requirement High power output per transistor ANSWER DOWNLOAD EXAMIANS APP
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