LESSON 2
TRANSMITTING SYSTEMS AND RF COMPONENTS
Critical Task: 01-5768.07-0002
OVERVIEW
LESSON DESCRIPTION:
In this lesson, you will learn transmitting systems and RF components.
TERMINAL LEARNING OBJECTIVE:
ACTION:
Demonstrate a basic knowledge of the purpose and characteristics of waveguides, waveguide
filters, joints, mode launchers, isolators, dipole horn, polyrod, cassegrainian feeds, parabolic
and hyperbolic reflectors, and variable circular polarization. Know how preemphasis and
deemphasis networks, limiting circuits, and phase-lock-loop circuits are used to improve S/N.
Be able to describe how translators, exciters, and high-powered amplifiers are used in
satellite transmitters to modulate the frequency.
CONDITION:
Given lesson material, paper, and pencil.
STANDARD:
Demonstrate competency of the task, skills, and knowledge of the material presented by
responding to 70 percent of the test questions covering satellite communications, without
supervision.
INTRODUCTION
In Lesson 1, we discussed the fundamentals of satellite communications, different terms and definitions
associated with satellite communications, as well as reliability, invulnerability, and flexibility. In this lesson,
we will address waveguide principles, transmission of energy, and the advantages waveguides have over
ordinary conductors for transmitting energy. As a signal officer, it is your responsibility to be as familiar as
possible with the material presented in this lesson.
2-1
SS0031
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