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TM 11-5821-333-12
CHAPTER 1
INTRODUCTION
PAGE
SECTION I.
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
II.
Equipment Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Ill.
Technical Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1-1. SCOPE.
This chapter provides a general introduction to the SINCGARS airborne Non-lCOM and ICOM operator’s and
unit maintenance manual. This manual is intended to be used by Operators, NCS personnel, and AVUM Main-
tainers. SINCGARS is designed for secure voice and data communication and is the only anti-jam radio that is
part of a total system. SINCGARS is capable of two modes of operation: single channel and frequency hopping.
The radio sets handle both voice and data communications. The introduction includes information about how to
report errors, equipment problems, suggested improvements, and security information, It also contains a sec-
tion that describes equipment capabilities and features, characteristics, performance, weights, and measure-
ments as well as illustrations and text that show and describe major components, The technical principles of
operation are detailed descriptions of operational functions of SINCGARS, and are provided only for information.
For simplified operator’s information, refer to Chapter 2. The manual gives information for the operation and
maintenance of the Non-lCOM radio (AN/ARC-201 (V)) and ICOM radio (AN/ARC-201A(V)). Where radio con-
trols differ between the ICOM and Non-lCOM radios, the ICOM control will be shown first, followed by the Non-
ICOM control in parenthesis; i.e.; “ SYNC” (“ L. E.)”. The manual also provides information about ECCM fill de-
vice, various mounts, data rate adapter, and RT/RCU’s.
Section I. GENERAL INFORMATION
Subject
Para
Page
Consolidated Index of Army Publications and Blank Forms . . . . . . . . . . . . . . . 1-3
1-1
Destruction of Army Materiel to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . 1-7
1-2
Equipment Improvement Recommendations (EIR) . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-1
Maintenance Forms, Records, and Reports ., . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-1
Reporting Errors and Recommending Improvements . . . . . . . . . . . . . . . . . . . 1-5
1-2
Security Classification and Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-2
1-2. MAINTENANCE FORMS, RECORDS, AND REPORTS.
a. Reports of Maintenance and Unsatisfactory Equipment.
Department of the Army forms and proce-
dures used for equipment maintenance will be those prescribed by DA PAM 738-750 as contained in Mainte-
nance Management Update.
b. Reporting of Item and Packaging Discrepancies.
Fill out and forward SF 364 (Report of Discrepancy
(ROD)) as prescribed in AR 735-11-2/DLAR 4140.55/SECNAVINST 4355.18/AFR 400-54/MCO 4430.3J.
c. Transportation Discrepancy Report (TDR) (SF 361). Fill out and forward Transportation Discrepancy
Report (TDR) (SF 361) as prescribed in AR 55-38 /NAVSUPlNST 4610.33C/AFR 75-18/MCO P4610.19D/DLAR
4500.15.
1-3. 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.
1-4. EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR).
If your series of radio sets needs improvement, let us know. Send us an EIR. You, the user, are the only one who
can tell us what you don’t like about the design. Put it on an SF 368 (Product Quality Deficiency Report). Mail it to:
Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-ED-PH,
Fort Monmouth, NJ 07703–5007. We’ll send you a reply.
1-1
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