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

Much easier alignment
Better linearity
Fewer tuned circuits
Greater limiting

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Radio Receivers
The local oscillator of a broadcast receiver is tuned to a frequency higher than the incoming frequency

Because otherwise an intermediate frequency could not be produced
To help the image frequency rejection
To permit easier tracking
To allow adequate frequency coverage without switching

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Radio Receivers
In a broadcast superheterodyne receiver, the

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

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