The position of modulation in a transmitter determines whether the circuit is low- level or high-level. The modulation occurs before the output element of the transmitter's final stage with low-level modulation. Because the modulation occurs in the final element of the final stage, when the carrier signal is at its maximum amplitude, high-level modulators require a substantially larger amplitude modulating signal to obtain a reasonable percent modulation. Which of the following is NOT TRUE? Select your answer. When the transmitted power hits 85 percent in high-level modulation, the AM signal becomes distorted. The final modulating signal amplifier in high-level modulation must supply full sideband power, which could be up to 33% of the total transmit power. Low-level modulation has the problem of requiring all subsequent amplifiers to be linear amplifiers, which is inefficient in high-power applications. Low-level modulation has the advantage of using less modulating signal power to attain a high modulation percentage.

The position of modulation in a transmitter determines whether the circuit is low- level or high-level. The modulation occurs before the output element of the transmitter's final stage with low-level modulation. Because the modulation occurs in the final element of the final stage, when the carrier signal is at its maximum amplitude, high-level modulators require a substantially larger amplitude modulating signal to obtain a reasonable percent modulation. Which of the following is NOT TRUE? Select your answer. When the transmitted power hits 85 percent in high-level modulation, the AM signal becomes distorted. The final modulating signal amplifier in high-level modulation must supply full sideband power, which could be up to 33% of the total transmit power. Low-level modulation has the problem of requiring all subsequent amplifiers to be linear amplifiers, which is inefficient in high-power applications. Low-level modulation has the advantage of using less modulating signal power to attain a high modulation percentage.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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