Radio Receivers
One of the following cannot be used to demodulate SSB:

Complete phase-shift generator
Diode Balance modulator
Product detector
Bipolar transistor balanced modulator

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Radio Receivers
Indicate the false statement in connection with communications receivers.

Double conversion is used to improve image rejection
A product demodulator could be used for the reception of Morse code.
The noise limiter cuts off the receiver’s output during a noise pulse.
Variable sensitivity is used to eliminate selective fading

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