LEARNING OBJECTIVES

Upon completing this chapter, you should be able to do the following:

1. Explain the terms "range", "bearing", and "altitude" as they are associated with radar.

2. Explain the two basic methods for detecting objects with radar.

3. Identify and explain the use of equipment found in basic radar.

4. Identify and state the use of the four basic types of military radar systems.

5. Identify and explain the three phases of fire-control radar.

6. Identify the radar systems currently used in the U. S. Navy.

INTRODUCTION

This chapter discusses radar principles and basic radar systems. As a Fire Controlman, and a possible work-center supervisor, you must understand basic radar principles and safety requirements for radar maintenance. You will find valuable supporting information in the Navy Electricity and Electronics Training Series (NEETS), especially Module 18, Radar Principles, NAVEDTRA 172-18-00-84, and in Electronics Installation and Maintenance Book, Radar, NAVSEA SE000-00-EIM-020. By referring to these publications on a regular basis, you can increase your understanding of this subject matter.

This chapter is not designed to teach you every radar system the Navy uses, but simply to familiarize you with the radars and their general characteristics. Because there are so many different models of radar equipment, we will describe only the radars and radar accessories that will be around for several years. We will not discuss older radar systems that are scheduled for replacement in the near future. Refer to your specific technical publications for detailed descriptions of the operation and maintenance of your specific radar system.