The ETB-220 Analog Signal Sampling and Reconstruction Trainer is a dedicated educational tool designed to demonstrate the principles of signal sampling and reconstruction in analog communication. This trainer allows students to visualize how an analog signal is sampled and then accurately reconstructed from its discrete samples, adhering to the Nyquist Sampling Theorem.

The trainer includes a built-in analog signal source, sample-and-hold circuit, reconstruction filter, and required power supply. It provides a hands-on platform to study practical aspects of analog-to-digital conversion and its significance in signal processing systems.

Key Features:

• In-built analog signal generator (sine/square wave)

• Sample-and-hold circuit with variable sampling rate

• Low-pass reconstruction filter

• Power supply integrated into the unit

• CRO-compatible output terminals

• Visual observation of input, sampled, and reconstructed signals

• Designed for lab use in electronics, communication, and DSP courses

Educational Applications:

• Understanding sampling process in time domain

• Demonstrating aliasing and under-sampling issues

• Studying reconstruction using low-pass filtering

• Practical verification of Nyquist criterion

• Signal processing and analog communication basics