PULSE CODE MODULATION & DEMODULATION | PCM Communication Trainer Module

Description

The Pulse Code Modulation & Demodulation (PCM) Trainer is a comprehensive communication laboratory system designed to study the principles of analog-to-digital conversion and digital-to-analog reconstruction using PCM techniques. This trainer enables clear understanding of sampling, quantization, encoding, transmission, decoding, and reconstruction of signals in digital communication systems.
Ideal for communication engineering labs, electronics laboratories, engineering colleges, universities, and technical training institutes.
✅ Key Features
📡 Complete PCM System Demonstration
Demonstrates the full PCM process: ✔ Sampling
✔ Quantization
✔ Encoding
✔ Digital transmission
✔ Decoding
✔ Signal reconstruction
Provides step-by-step learning of digital communication fundamentals.
🎚 Built-In Signal Generation & Processing
Internal sine wave / audio signal generator
Sampling circuit with selectable sampling frequency
Quantizer and encoder blocks for PCM generation
Allows observation of signal transformation at each stage.
🔢 Digital Encoding & Decoding Section
Binary PCM output available for observation
Decoder and low-pass reconstruction filter included
Clear comparison between original and recovered signals
Helps analyze quantization noise and distortion effects.
📊 Test Points for CRO / DSO Observation
Clearly marked test points at every functional block
Easy connection to CRO or DSO for waveform analysis
Supports time-domain signal study
Perfect for practical waveform verification.
⚙ User-Friendly Trainer Design
Printed block diagram on front panel
Clearly labeled controls, switches, and terminals
Compact, rugged, and student-safe construction
Designed for repeated academic use.
🛡 Safety & Reliability
Low-voltage operation
Overload and short-circuit protection
High-quality electronic components ensure long service life
📘 Typical Applications
Study of Pulse Code Modulation & Demodulation
Digital communication system fundamentals
Analog-to-digital and digital-to-analog conversion
Understanding sampling, quantization & encoding
Engineering and diploma communication practicals
💡 Why Choose This Trainer?
Provides complete hands-on understanding of PCM
Visualizes every stage of digital communication
Essential module for modern communication labs
Reliable, accurate, and easy to operate