d. gains of the IF stages.
19. The circuit shown in figure 3-7 recovers the intelligence from the modulated
signal. This circuit is called a
a. modified phase discriminator.
b. double-tuned discriminator.
c. slope detector.
Signal recovery circuit.
20. A slope detector is designed so that the gain of the circuit changes in
accordance with the
a. amplitude changes of the IF signal.
b. frequency changes of the IF lower sideband.
c. frequency changes of the IF upper sideband.
d. frequency deviation rate of the IF signal.
CHECK YOUR ANSWERS WITH LESSON 3 SOLUTION SHEET PAGES 58 AND 59.