Raymarine Ray48 manual Technical Description, Section Maintenance, Appendix

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

7.1VHF MARINE CHANNEL USAGE GUIDE

AND LICENSING REQUIREMENTS 27

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