Radio Receivers Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false: Fewer tuned circuits Better linearity Greater limiting Much easier alignment Fewer tuned circuits Better linearity Greater limiting Much easier alignment ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a ratio detector the linearity is worse than in phase discriminator the output is twice that obtainable from a similar phase discriminator the circuit is the same as in a discriminator, except that the diodes are reversed stabilization against signal strength variations is provided the linearity is worse than in phase discriminator the output is twice that obtainable from a similar phase discriminator the circuit is the same as in a discriminator, except that the diodes are reversed stabilization against signal strength variations is provided ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a broadcast superheterodyne receiver, the Mixer input must be tuned to the signal frequency RF amplifier normally works at 455 kHz above the carrier frequency Local oscillator operates below the signal frequency Local oscillator frequency is normally double the IF Mixer input must be tuned to the signal frequency RF amplifier normally works at 455 kHz above the carrier frequency Local oscillator operates below the signal frequency Local oscillator frequency is normally double the IF ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers When a receiver has good blocking performance, this means that It is unaffected by AGC derived from nearby transmissions Its detector suffers from burnout Its image frequency rejection is poor It does not suffer from double-spotting It is unaffected by AGC derived from nearby transmissions Its detector suffers from burnout Its image frequency rejection is poor It does not suffer from double-spotting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) Tracking will be improved Image frequency rejection is very good The local oscillator need not be extremely stable The selectivity will be poor Tracking will be improved Image frequency rejection is very good The local oscillator need not be extremely stable The selectivity will be poor ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Sensitivity Diversion reception Blocking Double-spotting Sensitivity Diversion reception Blocking Double-spotting ANSWER DOWNLOAD EXAMIANS APP
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