TM 11-5820-890-10-3
CHAPTER 2
OPERATING INSTRUCTIONS
PAGE
SECTION
I.
Description and Use of Operator’s Controls, Indicators,
and Connectors ........................................................................................................................ 2-1
II.
Assembly and Preparation for Use........................................................................................... 2-16
Ill.
Single Channel Operating Procedures..................................................................................... 2-33
IV.
Frequency Hopping Operating Procedures.............................................................................. 2-36
V.
Operator Troubleshooting ........................................................................................................ 2-53
SCOPE
Chapter 2 is designed for the SINCGARS operator. It contains information that the operator needs to know, except
maintenance and special operations which are covered in other chapters. This chapter describes how to use the radio’s
controls and how to prepare the radio for operation. It also contains operator’s procedures for single channel and
frequency hopping operation, loading data and receiving an ERF for net opening. Although the SINCGARS radio
demands more of the operator than merely turning It on, operator tasks primarily Involve entering data using the keyboard,
using local fill devices, and responding to NCS messages. Once these steps have been taken, the SINCGARS radio
requires little of the operator other than listen and push-to-talk. The Operator’s Roadmap and Functional Flow Charts In
Appendix A offer the operator graphic aids which may be helpful in learning and recalling basic operator tasks.
SECTION I. DESCRIPTION AND USE OF OPERATOR’S CONTROLS,
INDICATORS, AND CONNECTORS
ITEM
PAGE
Receiver-Transmitter (RT) ................................................................................................................................................ 2-2
Loudspeaker-Control Unit, LS-671/U (loudspeaker) ......................................................................................................... 2-11
Loudspeaker LS-454/U (loudspeaker) .............................................................................................................................. 2-11
ECCM Fill Device .............................................................................................................................................................. 2-12
Mounting Adapter .............................................................................................................................................................. 2-13
Power Amplifier Mount ...................................................................................................................................................... 2-14
Power Supply Adapter....................................................................................................................................................... 2-15
Section I describes each applicable control (knob, switch, etc.) and connector for the RT, loudspeaker, ECCM fill device,
mounting adapter, power supply adapter, and power amplifier mount. The functional descriptions and illustrations are
helpful in becoming familiar with the equipment.
2-1
