TM 11-5820-890-10-1
CHAPTER 4
OTHER OPERATING PROCEDURES
PAGE
SECTION I.
Control, Receiver-Transmitter (RCU) C-11561 (C)/U . . . . . . . 4-1
II.
4-9
III
Control-Monitor (CM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV.
ECCM Fill Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Operation With External Equipment . . . . . . . . . . . . . . . .
V.
Additional Operating Procedures
...........................................
4-15
4-20
VI.
Operation Under Unusual Conditions . . . . . . . . . . . . . . . . . . . . 4-27
This chapter is applicable to operators and NCS. Chapter 4 contains operating proce-
dures for equipment other than the radio. It also contains operating procedures for
retransmit and scanning. Also included in this chapter is Operation Under Unusual
Conditions, such as unusual weather, fording, and emergency procedures.
SECTION I.
CONTROL, RECEIVER-TRANSMITTER (RCU) C-11561 (C)/U
ITEM
PAGE
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
Operator’s Controls, Indicators, and Connectors
. . . . . . . . . . . . . . . . . . . . . . 4-2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Operational Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3
ICM (intercom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4
RCU Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5
INTRODUCTION. The RCU provides remote control of radio. It also provides secure
communication compatible with all configurations (manpack and vehicular). Many
of the RCU features and operations are identical to the radio. Refer to the following
illustration of the RCU front panel as needed.
RCU Front Panel
4-1
