Radio Receivers
Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false:

Greater limiting
Much easier alignment
Fewer tuned circuits
Better linearity

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Radio Receivers
In a broadcast superheterodyne receiver, the

Local oscillator frequency is normally double the IF
Local oscillator operates below the signal frequency
RF amplifier normally works at 455 kHz above the carrier frequency
Mixer input must be tuned to the signal frequency

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Radio Receivers
In a ratio detector

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
the linearity is worse than in phase discriminator
stabilization against signal strength variations is provided

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