Contents
Main
ii
PURPOSE
*******IMPORTANT NOTICE*******
iii
TABLE OF CONTENTS
SECTION 1 GENERAL DESCRIPTION
SECTION 2 INSTALLATION
SECTION 3 OPERATIONS
Page
v
GLOSSARY OF TERMS
SECTION 1
GENERAL DESCRIPTION
1.1 INTRODUCTION
1.2 EQUIPMENT FEATURES
2
SECTION 2
INSTALLATION
2.1 UNPACKING AND INSPECTION
2.2 EQUIPMENT SUPPLIED
2.2.1 Optional Accessories
3
2.3.1 Typical Mounting Methods
Fig.2-1 TYPICAL MOUNTING METHOD
2.3.2 Flush Mounting
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2.4 ELECTRICAL CONNECTIONS
6
Fig.2-5 POWER CABLE LENGTH
2.4.2 External Speaker Connections
7
2.4.3 Antenna Connections
Fig.2-6 TYPICAL GROUNDING METHODS
2.4.4 Antenna Mounting Suggestions
2.4.5 Grounding
SECTION 3
OPERATIONS
3.1 INTRODUCTION
3.2 CONTROLS AND LCD DISPLAY
9
3.2.1 Controls
1
VOLUME Control (On/Off)
3SQUELCH control
10
3.2.2 LCD Display
Fig.3-2 LCD DISPLAY
11
3.3 OPERATING PROCEDURES
3.3.1 Turning the Power On
Setting the Volume
Setting the Squelch
Setting the Power Output
12
To Select a Weather Channel
3.3.2 The 16 PLUS (priority) Channel
3.3.3 Channel Memory
3.3.4 Scan Modes
13
3.3.5 Master Reset
3.3.6 Monitor Mode
Working Channel
16 PLUS (priority) Channel
SECTION 4
TECHNICAL DESCRIPTION
4.1 GENERAL
4.2 THE CONTROL SECTION
4.3 THE TRANSMITTER/RECEIVER/PLL SECTIONS
15
4.3.2 Transmitter Circuit
4.3.3 Receiver Circuit
16
4.4 SPECIFICATIONS
4.4.1 Transmitter
4.4.2 Receiver
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4.5 BLOCK DIAGRAM
IC201 M34520 M6
Fig. 4-1 Ray48 Block Diagram
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4.6 Ray48 ASSEMBLY DRAWING
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21
SECTION 5
MAINTENANCE
5.1 GENERAL
5.1.1 How to contact Raymarine
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SECTION 6
Ray48 MARINE CHANNELS FREQUENCY TABLES
Table 6-1
U.S. VHF Marine Radio Channels and Frequencies
6.1 Ray48 MARINE CHANNELS AND THEIR USAGE
Page
International VHF Marine Radio Channels & Frequencies
U.S. NOAA Weather Radio Frequencies
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SECTION 7
APPENDIX
7.1 VHF MARINE CHANNEL USAGE GUIDE AND LICENSING REQUIREMENTS