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TABLE OF CONTENTS
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FOREWORD ..................................................................................... i
IMPORTANT ...................................................................................... i
EXPLICIT DEFINITIONS ................................................................... i
IN CASE OF EMERGENCY ............................................................. ii
RADIO OPERATOR WARNING ...................................................... iii
TABLE OF CONTENTS ................................................................... iv
PRECAUTIONS ................................................................................ v
1 OPERATING RULES ..................................................................1
2 PANEL DESCRIPTION ...........................................................2–5
Front panel ...............................................................................2
Function display .......................................................................4
Speaker Microphone ................................................................5
3 BASIC OPERATION .............................................................6–11
Channel selection.....................................................................6
Receiving and transmitting .......................................................8
Call channel programming .......................................................9
Channel comments ..................................................................9
Microphone Lock function ......................................................10
Display backlight ....................................................................10
Optional voice scrambler operation ........................................11
4 SCAN OPERATION ............................................................12–13
Scan types .............................................................................12
Setting TAG channels ............................................................13
Starting a scan .......................................................................13
5 DUALWATCH/TRI-WATCH .......................................................14
Description .............................................................................14
Operation ...............................................................................14
6 DSC OPERATION ...............................................................15–47
MMSI code programming ......................................................15
DSC address ID .....................................................................16
Position and time programming .............................................18
Position and time indication ...................................................19
GPS information display ........................................................19
Distress call ...........................................................................20
Transmitting DSC calls ...........................................................23
Receiving DSC calls ..............................................................35
Received messages ..............................................................43
DSC Set up menu ..................................................................44
7 OTHER FUNCTIONS ..........................................................48–52
Intercom operation .................................................................48
RX Speaker function ..............................................................49
Hailer operation .....................................................................50
Automatic Foghorn function ...................................................51
8 SET MODE ..........................................................................53–55
Set mode programming .........................................................53
Set mode items ......................................................................53
9 CONNECTIONS AND MAINTENANCE..............................56–66
Connections ...........................................................................56
Antenna .................................................................................58
Fuse replacement ..................................................................58
Cleaning.................................................................................58
Supplied accessories .............................................................58
Mounting the transceiver .......................................................59
MB-75 installation ..................................................................60
UT-112/UT-98 installation .......................................................61
Microphone installation ..........................................................62
10 TROUBLESHOOTING ..............................................................67
11 SPECIFICATIONS AND OPTIONS .....................................68–69
Specifications.........................................................................68
Options ..................................................................................69
12 CHANNEL LIST ........................................................................70
13 TEMPLATE ...............................................................................71
14 FCC INFORMATION .................................................................73
Summary of Contents for IC-M504A
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