CHAPTER 1. INTRODUCTION - TM-11-5820-477-300009

TM 11-5820-477-30

CHAPTER 1

INTRODUCTION

Page

Section I.

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-I

Equipment Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Section Il.

Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Section Ill.

OVERVIEW

The general information, description and principles of operation contained in this chapter provide data for direct

support personnel to use and maintain Radio Set Control Groups AN/GRA-39, AN/GRA-39A, AN/GRA-39B and

AN/GRA-39C. This chapter lists reporting procedures, equipment improvement recommendations and storage

procedures. Equipment description and data include particular model differences. Principles of operation

explains functioning of each model.

Section L GENERAL INFORMATION

Para.

Page

scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Consolidated Index of Army Publications and Blank Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Maintenance Forms, Records and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Reporting Equipment Improvement Recommendations (EIR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Administrative Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Destruction of Army Electronics Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-1. Scope

This manual covers direct support (DS) maintenance of Radio Set Control Group AN/GRA-39, AN/GRA-39A,

AN/G RA-39B and AN/G RA-39C (figure 1 -1). It includes instructions and data relevant to direct support

maintenance for troubleshooting, component replacement and, where applicable, component adjustment. Where

information applies to all models covered by this manual, the equipment shall be referred to as AN/GRA-39(*).

Where information applies to all component local control units, the equipment shall be referred to as C-2329(*)/

GRA-39. Where information applies to all component remote control units, the equipment shall be referred to as

C-2328(*)/GRA-39.

1-2. Consolidated Index of Army Publications and Blank Forms

Refer to the latest issue of DA PAM 25-30 to determine whether there are new editions, changes, or additional

publications pertaining to the equipment.

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