Radio Receivers In a ratio detector the output is twice that obtainable from a similar phase discriminator stabilization against signal strength variations is provided the linearity is worse than in phase discriminator the circuit is the same as in a discriminator, except that the diodes are reversed the output is twice that obtainable from a similar phase discriminator stabilization against signal strength variations is provided the linearity is worse than in phase discriminator the circuit is the same as in a discriminator, except that the diodes are reversed ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) The local oscillator need not be extremely stable Tracking will be improved Image frequency rejection is very good The selectivity will be poor The local oscillator need not be extremely stable Tracking will be improved Image frequency rejection is very good The selectivity will be poor ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Blocking Diversion reception Double-spotting Sensitivity Blocking Diversion reception Double-spotting Sensitivity ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers When a receiver has good blocking performance, this means that Its detector suffers from burnout Its image frequency rejection is poor It is unaffected by AGC derived from nearby transmissions It does not suffer from double-spotting Its detector suffers from burnout Its image frequency rejection is poor It is unaffected by AGC derived from nearby transmissions It does not suffer from double-spotting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from Gain variation over the frequency coverage range Instability Inadequate selectivity at high frequencies Insufficient gain and sensitivity Gain variation over the frequency coverage range Instability Inadequate selectivity at high frequencies Insufficient gain and sensitivity ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers To prevent overloading of the IF amplifier in a receiver, one should use Variable sensitivity Double conversion Variable selectivity Squelch Variable sensitivity Double conversion Variable selectivity Squelch ANSWER DOWNLOAD EXAMIANS APP
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