Radio Receivers
Indicate the false statement. Noting that no carrier is transmitter with J3E, we see that

The receiver cannot use a phase comparator for AFC
Adjacent-channel rejection is more difficult
The transmission is not compatible with A3E
Production of AGC is a rather complicated process

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

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

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