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Raymarine Ray48 - page 1
Ray48 VHF Radio Owner’ s Handbook Document number: 81233 -2 Date: February 200 4 ...
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Raymarine Ray48 - page 2
ii PURPOSE THIS MANUAL CONT AINS VER Y IMPOR T ANT INFORMA TION ON THE INST ALLA TION, OPERA TION, AND MAINTENANCE OF YOUR NEW EQUIPMENT . TO GET THE BEST RESUL TS IN OPERA TION AND PERFORMANCE, PLEASE T AKE THE TIME TO READ THIS MANUAL THOROUGHL Y . *******IMPORT ANT NO TICE******* THIS DEVICE IS ONL Y AN AID TO NA VIGA TION. ITS ACCURACY CAN BE A ...
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Raymarine Ray48 - page 3
iii T ABLE OF CONTENTS SECTION 1 GENERAL DESCRIPTION 1.1 INTRODUCTION .................................................................................................................................... 1 1.2 EQUIPMENT FEA TURES .......................................................................................................... ............ 1 ...
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Raymarine Ray48 - page 4
i v SECTION 4 TECHNICAL DESCRIPTION 4.1 GENERAL ..................................................................................................................... ........................ 14 4.2 THE CONTROL SECTION ......................................................................................................... ......... 14 4.3 THE TRANS ...
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Raymarine Ray48 - page 5
v GLOSSAR Y OF TERMS VHF ............................................................. V ery High Frequency 30MHz to 300MHz FM ............................................................... Frequency Modulation Carrier W ave ................................................ A Radio Frequency on which intelligence is superimposed. Dual W atch ...... ...
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Raymarine Ray48 - page 6
1 SECTION 1 GENERAL DESCRIPTION 1.1 INTR ODUCTION Congratulations on your purchase of Raymarine's Ray48 marine radiotelephone. 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 st ...
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Raymarine Ray48 - page 7
2 SECTION 2 INST ALLA TION 2.1 UNP A CKING AND INSPECTION Use care when unpacking the unit from the shipping carton to prevent damage to the contents. It is also good practice to save the carton and the interior packing material. The original packing material should be used in the unlikely event it is necessary to return the unit to the factory . 2 ...
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Raymarine Ray48 - page 8
3 • The transceiver should be located as near to the power source as possible. • The selected location should be as far apart as is possible from any devices that may cause interference such as motors, generators, and other on board electronics. • Generally speaking, the transceiver should be protected from prolonged direct exposure to rain a ...
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Raymarine Ray48 - page 9
4 Fig.2-2 OUTLINE AND MOUNTING DIMENSIONS All dimensions are shown in (inches) and millimeters 120(4.72) 85(3.03) 110(4.33) 160(6.29) 151(5.94) 195(7.66) 19(0.74) ...
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Raymarine Ray48 - page 10
5 Fig.2-3 REAR VIEW CA UTION Do not install this radio on vessels with positive ground batter y systems. Fig.2-4 PO WER/EXTERNAL SPEAKER CABLE AND 4 PIN CONNECT OR CABLE 2.4.1 DC P ower and External Speaker Connections The power cable comes with external speaker attachments. The power/external speaker cable provided is 6 feet long and plugs into th ...
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Raymarine Ray48 - page 11
6 Y our Ray48 radio should be connected to the nearest primary source of ship's DC power . A typical source may be a circuit breaker on the power panel or a fuse block near the unit. When connecting to either of these sources, the circuit breaker or other in-line fuse should be rated at 10 amps. It is recommended that terminal lugs be used to ...
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Raymarine Ray48 - page 12
7 2.4.3 Antenna Connections The coaxial cable to your VHF antenna is intended to be connected to the antenna jack on the rear panel using a PL259 VHF type connector . The antenna cable can be cut to length but the overall cable length can be critical to performance. If you are uncertain, contact a professional installer or call our Product Support ...
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Raymarine Ray48 - page 13
8 Fig.3-1 LA Y OUT OF CONTROLS AND CONNECT ORS SECTION 3 OPERA TIONS 3.1 INT R ODUCTION Y our 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 ...
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Raymarine Ray48 - page 14
9 3.2.1 Contr ols 1 VOLUME Control (On/Off) T urns the radio On and Off and controls the V olume 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 n ...
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Raymarine Ray48 - page 15
10 3.2.2 LCD Displa y The following describes the functional characters on the Ray48's LCD. 1 SCAN: W ill 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. 2 1 W (High/Low Power): W ill be displayed when the transmitter circuits are providing 1 W att of ...
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Raymarine Ray48 - page 16
11 3.3 OPERA TING PROCEDURES 3.3.1 T urning the P ower On 1) Rotate the ON/OFF/VOLUME control clockwise to turn the radio on. NOTE When the Pow er is on, the synthesizer automatically prog rams for the USA channel frequencies and selects the calling channel 16. (Refer to 16 PLUS operation to change this channel.) Setting the V olume 1) Rotate the S ...
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Raymarine Ray48 - page 17
12 NOTE Initial communication contacts are usually made over channel 16 as all ships and shor e stations monitor this channel. T hen a shift to a working channel will be necessar y . T o Select a W eather Channel 1) Press the WX/INT key , then use the Up [ ▲ ] or Down [ ▼ ] key to select the desired weather channel from 0 to 9. When this mode i ...
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Raymarine Ray48 - page 18
13 2) 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. As with All-Scan, if a signal is received, the scan will ...
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Raymarine Ray48 - page 19
14 SECTION 4 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 T ransmitter/Receiver/PLL circuits 4.2 THE CONTROL SECTION The heart of the control section is the CPU IC201, located on ...
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Raymarine Ray48 - page 20
15 4.3.2 T ransmitter 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. The RF signal from IC1 is fed to the antenna through a low pass filter . The DC volt ...
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Raymarine Ray48 - page 21
16 4.4 SPECIFICA TIONS 4.4.1 T ransmitter Channels 53 US/International Frequency Stability ±10PPM (±0.001%) (-20°C to +50°C) Frequency Range 156.025 to 157.425 MHz Channel Spacing 25 KHz Increments Power Output 25 W atts switchable to 1 W att into 50 Ohms at 13.6 Vdc modulation Frequency modulated 16F3 (±4.5 KHz at 1000 Hz) Modulation Audio Re ...
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Raymarine Ray48 - page 22
17 4.4.3 Operating Requirement Input V oltage 13.6 Vdc ±15% (1 1.6 to 15.6 Vdc) Current Required T ransmit Less than 5.8 amp at 25 W atts Less than 1.5 amp at 1 W att Operating T emperature -20°C to +50°C Duty Cycle Continuous, 80% receive, 20% transmit (max 10 min. @25°C) Humidity 100% at 50°C for 8 hours 4.4.4 Radio Dimensions Height 70mm W ...
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Raymarine Ray48 - page 23
18 POWER MODULE DRIVE ANT SW AF AMP PWR DET DC CONT BUFF AMP BAND SW VCO DC FIL SW SW SW SW PLL FIL SW RESET IC201 M34520 M6 +5V REG E 2 PROM KEY BOARD LCD DISPLA Y PRE ⋅ ENPH & LIMITER LPE SW SW ISOLA TER SW SW SW PRE DRIVE BUFF AMP TONE DET MUTE 1 SP AMP LPF RF AMP 1st MIX 1st IF AMP 2nd MIX IF AMP SW D1 MI402 D4 MI308 D12 1SS226 BPF BPF BP ...
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Raymarine Ray48 - page 24
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Raymarine Ray48 - page 25
19 8 9 10 1 6 30 28 27 20 21 22 2 11 12 15 16 31 4 14 13 17 18 32 33 5 29 35 23 24 3 19 25 26 7 34 4.6 Ray48 ASSEMBL Y DRA WING 1. FRONT P ANEL ASSEMBL Y 2. MID COVER ASSEMBL Y 3. REAR COVER 4. FRONT GASKET 5. REAR GASKET 6. FRONT PCB ASSEMBL Y 7. MAIN PCB ASSEMBL Y 8. KNOB SQUELCH 9. KNOB POWER/VOLUME 10. POWER/VOLUME/SQUELCH POT NUT 1 1. O-RING ( ...
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Raymarine Ray48 - page 26
20 ...
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Raymarine Ray48 - page 27
21 SECTION 5 MAINTENANCE 5.1 GENERAL The Ray48 is designed to provide long periods of trouble-free operation. It is recognized, however , that environmental and other factors may result in a need for occasional service. 5.1.1 How to contact Ra ymarine T echnical Support: 1-800-539-5539 ext. 2444 or 603 - 881-5200 ext. 2444 Y ou may reach our T echn ...
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Raymarine Ray48 - page 28
22 On the Internet V isit the Raymarine W orld W ide W eb site for the latest information on Raymarine electronic equipment and systems at: www .raymarine.com Navigate to the Customer Suppor t Page, which provides links for: • Finding Factory Service locations and Authorized Dealers near you • Registering your Raymarine products • Accessing h ...
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Raymarine Ray48 - page 29
23 SECTION 6 Ra y48 MARINE CHANNELS FREQUENCY T ABLES 6.1 Ra y48 MARINE CHANNELS AND THEIR USA GE Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area. Port Operations or VTS in the Houston, New Orleans and Seattle areas. Intership Safety Commercial Commercial (Intership only) Boater Calling. Commercial and Non- ...
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Raymarine Ray48 - page 30
24 CH No. Use XMIT RCV Single Frequency x x x x 157.075 U.S. Government only - Environmental protection operations. U.S. Government only U.S. Government only Public Correspondence (Marine Operator) Public Correspondence (Marine Operator) 81 A 82 A 83 A 84 85 157.125 157.175 157.075 157.125 157.175 157.225 157.275 161.825 161.875 Public Corresponden ...
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Raymarine Ray48 - page 31
25 Public Correspondence, Port Operations and Ship Movement Public Correspondence, Port Operations and Ship Movement Public Correspondence, Port Operations and Ship Movement Public Correspondence, Port Operations and Ship Movement Public Correspondence, Port Operations and Ship Movement Public Correspondence, Port Operations and Ship Movement Inter ...
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Raymarine Ray48 - page 32
26 Intership channels are for communications between ship stations. Intership communications should be restricted to Channels 6, 8, 72 and 77. If these are not available, the other channels marked for Intership may be used. Channels 10, 67 and 73 should be avoided within VHF range of coastal areas in Europe and Canada. NOTES 1. Channel 06 may also ...
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Raymarine Ray48 - page 33
27 SECTION 7 APPENDIX 7.1 VHF MARINE CHANNEL USA GE 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 o ...
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Raymarine Ray48 - page 34
28 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 trans ...
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Raymarine Ray48 - page 35
29 Emergency Calling Monitoring Intership Safety U.S. Coast Guard Navigation Port Operation Noncommercial Commercial Marine Operator State Control Environmental W eather USAGE GUIDE ...
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Raymarine Ray48 - page 36
30 Emergency Channel 16 If: • Y our 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 • Give location of boat • Describe emer gency • If no answer , repea ...
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Raymarine Ray48 - page 37
31 Monitoring Channel 16 & W orking Channel When - your VHF station is turned on and it is not being used to exchange communications Y ou 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 . Intership Safety Channel: 6 V essels: A ...
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Raymarine Ray48 - page 38
32 U .S. Coast Guard Channel: 22 V essels: Any Use: W orking 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. Establish contact on channel 16 and shift to channel 22 as directed. Navig ...
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Raymarine Ray48 - page 39
33 P or t Operations Channels: 5, 12, 14, 20, 65, 66, 73, 74 [77] V essels: Any 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 and ...
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Raymarine Ray48 - page 40
34 Commercial Channels: 7, 8, 9, 10, 1 1, 18, 19, 67, 79, 80, [88] V essels: 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 vessels (ship-to-ship) or between commercial transport vessels ...
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Raymarine Ray48 - page 41
35 State Control Channel: 17 V essels: 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. Envir onmental Channel: 15 V essels: Any (receive only) Use: Broadcast of information concerning ...
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Raymarine Ray48 - page 42
36 PHONETIC ALPHABET : T o 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: A - ALPHA B - BRA VO C - CHARLIE D - DEL T A E - ECHO F - FOX-TROT G - GOLF H - HOTEL I - INDIA J - JULIET K - KILO L - LIM ...
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