Below are the answers key for the Multiple Choice Questions in Modulation Part 3.
101. Bandwidth
102. H3E
103. Continuous modulation
104. Pulse modulation
105. Coefficient of modulation
106. Carrier shift
107. The oscillator is crystal-controlled
108. Frequency translation
109. Balanced modulator
110. Both B and C
111. 30.8 MHz
112. 0.6 radian
113. Nonlinear
114. Push-push
115. Frequency synthesizer
116. 4
117. Balanced modulator
118. Indirect
119. All of these
120. The change of the crystal oscillator frequency by loading
121. Indirect FM
122. AFC
123. Both A and B
124. TRF
125. Weak antenna signals
126. Bandwidth variations over the tuning range
127. Modulator
128. R–F amplifier
129. Mixer
130. Frequency translation
131. Internal noise
132. Reduction of receiver internal noise
133. Smaller
134. Noise figure
135. 120.1 MHz
136. 88.5 MHz
137. The image rejection ratio
138. Powdered iron
139. Skirt steepness
140. AGC
141. Squelch
142. Noise blanker
143. SBB voice
144. The audio voice information
145. An increase of the oscillator frequency
146. The noise floor of the receiver
147. Open circuit in the AGC’s filter capacitor
148. Cross-modulation interference
149. Limits the amplitude of the IF signal to the required level
150. Connecting a capacitor between the B+ and lead ground
Questions and Answers in Modulation Series
Following is the list of multiple choice questions in this brand new series:
Complete List of MCQ in Communications Engineering per topic
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