The process by which information such as messages, images, signals and sounds are transferred over distances using wire, radio, optical or electromagnetic systems is referred to as telecommunications. These systems or communication paths are often divided into multiple channels to facilitate multiplexing. Telecommunication technologies are divided into two major branches, wired and wireless. Some examples of telecommunications systems are internet, radio, telephone, etc. The three basic elements of any telecommunications system are transmitter, transmission medium and receiver. Telecommunications engineering focuses on designing and maintaining such systems. This book attempts to understand the multiple branches that fall under the discipline of telecommunications engineering and how such concepts have practical applications. Some of the diverse topics covered herein address the varied branches that fall under this category. This textbook is an essential guide for both academicians and those who wish to pursue this discipline further.