Semester Hours: 4 | Lecture Hours: 3 | Laboratory Hours: 3 Introduction to the theory and troubleshooting skills needed in the digital data communication field. This course covers the principles of communications involving digital data and analog signals. Pulse modulation, multiplexing, and microwave communications are introduced. Emphasis on measurements and diagnostic troubleshooting techniques. Recommended Prerequisite(s):CETT 1441 and CETT 1445