 
			 
			MCQOPTIONS
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				| 1. | In communication systems, modulation is the process of | 
| A. | Improving frequency stability of transmitter | 
| B. | Combining signal and radio frequency waves | 
| C. | Generating constant frequency radio waves | 
| D. | Reducing distortion RF waves | 
| Answer» C. Generating constant frequency radio waves | |