The ETB-222 DPSK Modulation and Demodulation Trainer is designed for in-depth study and analysis of Differential Phase Shift Keying (DPSK), a widely used digital modulation technique. DPSK encodes data by shifting the phase of the carrier signal relative to the previous bit, making it more resilient to phase ambiguity in transmission.

This trainer provides a practical platform for understanding the modulation and demodulation principles involved in DPSK systems. It includes all essential circuitry such as data input generation, DPSK modulator, phase comparator, and demodulator with clear test points for waveform observation using an oscilloscope.

Key Features:

• Onboard DPSK modulator and demodulator

• Differential encoder and decoder circuits

• Built-in data source and clock generation

• Scope terminals to analyze waveforms at various stages

• Ideal for lab demonstrations and communication system training

• Integrated regulated power supply

• Compact and robust educational trainer setup

Educational Objectives:

• Study of differential phase shift keying principles

• Understanding the role of phase change in data representation

• Analysis of DPSK waveform characteristics

• Observation of demodulated signal recovery

• Comparison with other phase modulation techniques