PRUDENCE AND NAVIGATIONAL JUDGEMENT, AND THIS DEVICE SHOULD NOT BE RELIED UPON AS A SUBSTITUTE FOR SUCH PRUDENCE AND JUDGEMENT. Raymarine products are supported by a network of Authorized Service Representatives. For product information you may contact the following regional center:...
GLOSSARY OF TERMS VHF ... Very High Frequency 30MHz to 300MHz FM ... Frequency Modulation Carrier Wave ... A Radio Frequency on which intelligence is superimposed. Dual Watch ... Monitor channel 16 while working on another channel. Tri Watch ... Monitor channel 16 and weather channel while working on another All Scan ...
The Ray48 is a CPU-controlled, digitally synthesized, compact transceiver which provides reliable simplex and half-duplex (two-frequency) communications between ships and from ships at sea to public or private shore stations. The Ray48 provides two-way communications on the International and US channels, reception on 10 separate weather channels, and two-way communications on the International calling and safety channel (16).
Flush Mount Kit 2.3 PLANNING THE INSTALLATION When planning the installation for your Ray48, the following conditions should be considered to insure dependable and trouble-free operation. • The mounting location should be easily accessible to allow operation of the front panel.
2.3.1 Typical Mounting Methods The Ray48 can be conveniently mounted on a chart table, bulkhead, overhead, or any other desired location (refer to Figure 2-1 for typical mounting methods). Make sure there are no hidden electrical wires or other items behind the desired location before proceeding.
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120(4.72) Fig.2-2 OUTLINE AND MOUNTING DIMENSIONS All dimensions are shown in (inches) and millimeters...
6 feet long and plugs into the 4 pin connector cable at the rear panel of the radio. The RED (+) wire with an in-line fuse (10 amps) and the BLACK (-) wire of the 4 pin connector cable are used for connecting the Ray48 to the ship's 12 VDC power system. (Refer to Fig. 2-4) Fig.2-4 POWER/EXTERNAL SPEAKER CABLE AND...
2.4.2 External Speaker Connections The YELLOW (+) wire and GREEN (-) wire are used for connecting the Ray48 to an external speaker (Refer to Fig.2-4). Three watts of audio output power is provided for an external 4 ohm speaker.
The Ray48 can be connected to ground by attaching a wire to one of the screws on the unit's rear panel and then to the nearest ship's ground connection point.
3.1 INTRODUCTION Your Ray48 has the capability to transmit and receive on all available US and International Marine VHF radiotelephone channels. There are channels that are FCC approved but may only be used by authorized stations for specific purposes, depending on the type of vessel (commercial or noncommercial).
3.2.1 Controls VOLUME Control (On/Off) Turns the radio On and Off and controls the Volume of the audio output to the speaker. 2 [▲] [▼] Keys The Up and Down keys are used to move the channel numbers up or down. The channel number can be increased or decreased by one with each key press, or will continue to increase or decrease the number as the key is held.
3.2.2 LCD Display The following describes the functional characters on the Ray48's LCD. Fig.3-2 LCD DISPLAY SCAN: Will flash by itself when All-Scan mode is to be initiated or will flash in unison with "MEM" when Memory Scan mode is to be initiated.
CH 16 or a user selected priority channel (16 PLUS). As a safety feature, the Ray48 is designed to inhibit transmission if the Push-to-Talk switch is pressed continuously for over five minutes. If this occurs, audible beeps will sound and "TO"...
"beep" is heard and "MEM" disappears from the LCD. 3.3.4 Scan Modes The Ray48 is equipped with two types of scan options, All-Scan and Memory Scan. How these options are accessed is dependent upon whether there are any channels stored in memory.
Memory Scan Mode If one or more channels are stored in memory, when the SCAN key is pressed, "SCAN" and "MEM" will begin to flash simultaneously on the LCD. If no other key is pressed, the radio will begin scanning all channels currently in memory in three seconds.
TECHNICAL DESCRIPTION 4.1 GENERAL The Ray48 can be considered as consisting of two major sections. They are: • The Control Circuitry (considering of the front panel controls, the LCD display, control CPU) • The Transmitter/Receiver/PLL circuits 4.2 THE CONTROL SECTION The heart of the control section is the CPU IC201, located on the Front PCB.
4.3.2 Transmitter Circuit A signal from the microphone is fed to a pre-emphasis operations amplifier IC3, and modulates VCO (Q4) through active LPF IC2. The VCO output signal from Q4 is sent to the RF power amplifiers IC1, Q1 and Q2 through buffer amplifier Q3.
4.4.3 Operating Requirement Input Voltage Current Required Transmit Operating Temperature Duty Cycle Humidity 4.4.4 Radio Dimensions Height Width Depth Weight 13.6 Vdc ±15% (11.6 to 15.6 Vdc) Less than 5.8 amp at 25 Watts Less than 1.5 amp at 1 Watt -20°C to +50°C Continuous, 80% receive, 20% transmit (max 10 min.
Accessories and Parts: 1-800-539-5539 ext. 2333 or 603-881-5200 ext. 2333 Many Raymarine accessory items and parts are available through your authorized Raymarine dealer. However if you are in need of an item not available through your retailer feel free to contact our Customer Service department Monday to Friday 8:15 AM to 5:00 PM Eastern Standard Time.
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On the Internet Visit the Raymarine World Wide Web site for the latest information on Raymarine electronic equipment and systems at: www.raymarine.com Navigate to the Customer Support Page, which provides links for: • Finding Factory Service locations and Authorized Dealers near you •...
Ray48 MARINE CHANNELS FREQUENCY TABLES 6.1 Ray48 MARINE CHANNELS AND THEIR USAGE The transmitter of the Ray48 is disabled when channel 15, 75, 76 or WX0-WX9 is displayed. U.S. VHF Marine Radio Channels and Frequencies Frequency XMIT Single 156.050 156.100 156.150...
7.1 VHF MARINE CHANNEL USAGE GUIDE AND LICENSING REQUIREMENTS Marine VHF radio users in the US must comply with all applicable FCC rules and regulations, some of which are described here. This information was current at the time this book was printed. Up-to-date information, including licensing requirements, can be obtained on the FCC website at: www.fcc.gov/wtb/marine.
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All transceivers, hand-helds included, operated in the Maritime Radio Services are required to be operated under an appropriate maritime station license. Operation of hand held VHF Marine transceivers without proper station license can lead to fines and/or administrative sanctions issued against its user and/or owner. VHF Marine hand held transceivers can be operated and licensed as follows: Associated Ship Unit: A hand held VHF Marine transceiver can be operated under an existing valid ship station license under the following conditions only:...
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USAGE GUIDE Emergency Calling Monitoring Intership Safety U.S. Coast Guard Navigation Port Operation Noncommercial Commercial Marine Operator State Control Environmental Weather...
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Emergency Channel 16 • Your ship is sinking, or on fire • Someone has been lost overboard • There exists grave and imminent danger Use this distress procedure: • Select Channel 16 • Say "Mayday, Mayday, Mayday." • Give call sign and boat name •...
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Monitoring Channel 16 & Working Channel When - your VHF station is turned on and it is not being used to exchange communications You Must - monitor channel 16 As an operating convenience, many stations employ a second receiver so that they can monitor a working channel and channel 16 simultaneously.
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U.S. Coast Guard Channel: Vessels: Use: Working channel for exchange of communica- tions with stations of the U.S. Coast Guard. Between: Ship to U.S. Coast Guard ship, coast to aircraft stations Comments: U.S. Coast Guard does not regularly monitor this channel.
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Port Operations Channels: 5, 12, 14, 20, 65, 66, 73, 74 [77] Vessels: Use: Messages relating to the operational handling, movement and safety of vessels in or near ports, locks and waterways. Between: Ship-to ship or ship-to- coast Comments: Channel 77 is limited to communications to and from commercial pilots concerning the movement...
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Commercial Channels: 7, 8, 9, 10, 11, 18, 19, 67, 79, 80, [88] Vessels: Those used primarily for commercial transport of persons or goods, or engaged in servicing other vessels Use: Communications pertaining to the purpose for which the vessel is used Between: Commercial transport...
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State Control Channel: Vessels: State and local govern- ment Use: Coordination, regulation and control of boating activities and the rendering of assistance to vessels. Between: Ship and coast stations associated with state and local governments. Weather Channels: WX1, WX2, WX3 Vessels: Any Use: Continuous weather informa-...
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PHONETIC ALPHABET: To help make call letters more clearly understood, and to assist in spelling out similar sounding or unfamiliar words, radiotelephone users employ the international phonetic alphabet. Phonetic Alphabet: ALPHA BRAVO CHARLIE DELTA ECHO FOX-TROT GOLF HOTEL INDIA JULIET KILO LIMA MIKE...