# EMDA/A アナログ変調演習装置

The Analog Modulations Unit, "EMDA/A", is a complete analog communications unit designed to explain the basic concepts of analog modulation. It covers the principles of many of the modulation and demodulation techniques used in modern analog communication systems.

#### 概要

The Analog Modulations Unit, "EMDA/A", is a complete analog communications unit designed to explain the basic concepts of analog modulation. It covers the principles of many of the modulation and demodulation techniques used in modern analog communication systems.

The unit provides a basic understanding of the concepts behind analog techniques: Dual Side Band (DSB), Dual Side Band Suppressed Carrier (DSB-SC) and Single Side Band Suppressed Carrier (SSB-SC).

### マニュアルに含まれるガイド付き実習

1. Study of basic principles of AM modulation and demodulation technique.
2. Basic principles of DSB modulation and demodulation.
3. Basic principles of DSBSC modulation and demodulation.
4. Basic principles of SSBSC modulation and demodulation.
5. Comparison of the spectrum of AM, SSBSC and DSBSC signals.
6. Basic principles of FM modulation and demodulation.
7. Introduction to the PLL operation.

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