Departmental Laboratory

The Communication Theory Laboratory improves an in-depth exploration of both analog and digital modulation techniques fundamental to modern communication systems. The laboratory helps to gain practical experience with amplitude modulation schemes—including AM, DSB-SC, and SSB—and their respective detection methods, deepening their understanding of signal transmission and recovery. Frequency modulation is examined through hands-on FM generation and frequency discrimination techniques. The lab further investigates digital modulation formats such as ASK, FSK, and CDMA, enabling learners to grasp the intricacies of data encoding and decoding. Time and frequency division multiplexing (TDM and FDM) experiments illustrate the efficient sharing of communication channels among multiple signals. Additionally, pulse width modulation techniques are studied to demonstrate analog signal representation in digital form. This laboratory serves as a critical foundation for advanced coursework in wireless systems, digital communications, and signal processing.