The Delta Modulation and Demodulation Trainer from AGN Enterprises is an educational laboratory system designed for the practical study of Delta Modulation (DM), Delta Demodulation, sampling, quantization, signal tracking, and digital communication systems.
The trainer helps students understand the basic principles of differential digital modulation, where the difference between the input signal and its previous reconstructed value is represented using a digital pulse stream. It provides a practical platform for studying how an analog signal can be encoded and subsequently reconstructed at the receiver.
Students can study the complete process of Delta Modulation and Demodulation, including sampling, comparison, quantization, step-size operation, feedback, digital pulse generation, and signal reconstruction.
Suitable test points and output terminals allow students to observe the input, modulated, and demodulated signals using compatible measuring instruments. This enables learners to analyze signal tracking and understand the effect of different signal conditions on the quality of reconstructed output.
The trainer provides a structured platform for studying the transmission and recovery of analog information using Delta Modulation techniques. In addition, instructors can demonstrate how the difference between the input signal and its approximation is encoded and how the original signal is reconstructed at the receiver.
Students can practically investigate the effects of sampling frequency and step size and understand common limitations such as slope overload and granular noise.
