Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Duplex arrangement Either A or B Neither A nor B Half duplex arrangement Duplex arrangement Either A or B Neither A nor B Half duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 70.2 80.9 102.3 113 70.2 80.9 102.3 113 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 Both A and R are correct but R is not correct explanation of A A is correct but R is wrong Both A and R are correct and R is correct explanation of A A is wrong but R is correct Both A and R are correct but R is not correct explanation of A A is correct but R is wrong ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Under ordinary circumstances, impulse noise can be reduced in FM only Both AM and FM AM only None of these FM only Both AM and FM AM only None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 995 5 10 4.9 995 5 10 4.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage To reduce bandwidth ANSWER DOWNLOAD EXAMIANS APP
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