Raymarine Ray48 User Manual
Page 4
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SECTION 4
TECHNICAL DESCRIPTION
4.1
GENERAL ............................................................................................................................................. 14
4.2
THE CONTROL SECTION .................................................................................................................. 14
4.3
THE TRANSMITTER/RECEIVER/PLL SECTIONS .......................................................................... 14
4.3.1
PLL (Phase Lock Loop) Circuit ..................................................................................................... 14
4.3.2
Transmitter Circuit ......................................................................................................................... 15
4.3.3
Receiver Circuit ............................................................................................................................. 15
4.4
SPECIFICATIONS ................................................................................................................................ 16
4.4.1
Transmitter ..................................................................................................................................... 16
4.4.2
Receiver ......................................................................................................................................... 16
4.4.3
Operating Requirement .................................................................................................................. 17
4.4.4
Radio Dimensions .......................................................................................................................... 17
4.5
BLOCK DIAGRAM .............................................................................................................................. 18
4.6
Ray48 ASSEMBLY DRAWING ............................................................................................................ 19
SECTION 5
MAINTENANCE
5.1
GENERAL ........................................................................................................................... 21
5.1.1
How to contact Raymarine ........................................................................................... 21
SECTION 6
Ray48 MARINE CHANNELS FREQUENCY TABLES
6.1
Ray48 MARINE CHANNELS AND THEIR USAGE .......................................................................... 23
SECTION 7
APPENDIX
7.1
VHF MARINE CHANNEL USAGE GUIDE
AND LICENSING REQUIREMENTS ................................................................................................. 27