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Introduces the Ray48 marine radiotelephone and its purpose.
Lists the key built-in features of the Ray48 radiotelephone.
Guides on unpacking and inspecting the Ray48 unit and its components.
Lists the materials supplied with the Ray48 radiotelephone.
Provides conditions to consider for installing the Ray48 for optimal operation.
Details DC power, external speaker, antenna connections, and grounding.
Introduces the Ray48's capabilities for transmitting and receiving on marine VHF channels.
Describes the Ray48's physical controls and the LCD display indicators.
Guides on turning on, setting volume, squelch, power, and selecting channels.
Provides a general overview of the Ray48's main sections.
Details the functions controlled by the CPU in the Ray48's control section.
Describes the technical details of the Ray48's transmitter, receiver, and PLL circuits.
Lists the technical specifications for the Ray48 transmitter and receiver.
Presents the block diagram illustrating the Ray48's electronic circuitry.
Shows an exploded view and parts list for the Ray48 assembly.
Discusses the general design for trouble-free operation and occasional service needs.
Provides contact information for Raymarine technical support, parts, and repair services.
Lists Ray48 marine channels, frequencies, and their designated uses.
Covers US VHF marine channel usage rules and licensing requirements.