Ray48 VHF Radio Owner’s Handbook Document number: 81233-2 Date: February 2004
PURPOSE THIS MANUAL CONTAINS VERY IMPORTANT INFORMATION ON THE INSTALLATION, OPERATION, AND MAINTENANCE OF YOUR NEW EQUIPMENT. TO GET THE BEST RESULTS IN OPERATION AND PERFORMANCE, PLEASE TAKE THE TIME TO READ THIS MANUAL THOROUGHLY. *******IMPORTANT NOTICE******* THIS DEVICE IS ONLY AN AID TO NAVIGATION. ITS ACCURACY CAN BE AFFECTED BY MANY FACTORS INCLUDING EQUIPMENT FAILURE OR DEFECTS, ENVIRONMENTAL CONDITIONS, AND IMPROPER HANDLING OR USE.
TABLE OF CONTENTS SECTION 1 1.1 1.2 GENERAL DESCRIPTION INTRODUCTION .................................................................................................................................... 1 EQUIPMENT FEATURES ...................................................................................................................... 1 SECTION 2 INSTALLATION 2.1 UNPACKING AND INSPECTION ......................................................................................................... 2 2.
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 .......................
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 .....................................................
SECTION 1 GENERAL DESCRIPTION 1.1 INTRODUCTION 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 stations.
SECTION 2 INSTALLATION 2.1 UNPACKING 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. 2.2 EQUIPMENT SUPPLIED The following is a list of materials supplied with the Ray48: Description Part No.
• 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 and salt spray. It is always a good practice to protect your valuable electronic equipment as much as possible.
Fig.2-2 OUTLINE AND MOUNTING DIMENSIONS All dimensions are shown in (inches) and millimeters 4 195(7.66) 160(6.29) 151(5.94) 19(0.74) 110(4.33) 85(3.03) 120(4.
2.4 ELECTRICAL CONNECTIONS Fig.2-3 REAR VIEW CAUTION Do not install this radio on vessels with positive ground battery systems. 2.4.1 DC Power 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 the 4 pin connector cable at the rear panel of the radio.
In most cases the length of the power cable should be adequate enough to reach the DC power source. If additional wire length is required, the cable can be extended by adding more cable as necessary. However, for power cable runs longer than 15 feet, larger wire diameter size should be used to prevent voltage line loss. Fig 2-5 provides recommended wire sizes to use for various cable run distances. Fig.
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 department. If a longer cable length is required, RG-58 (50 ohm) coaxial cable or equivalent cable may be used for runs up to a maximum of 50 feet.
SECTION 3 OPERATIONS 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). Refer to Table 6-1. This table lists all of the marine VHF channels available in your Ray48 for US and International radiotelephone use.
3.2.1 Controls 1 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 SQUELCH control Provides an adjustable input signal threshold to eliminate random RF background noise during "no signal" conditions.
3.2.2 LCD Display The following describes the functional characters on the Ray48's LCD. 1W SCAN WX ALT MON INT MEM TX Fig.3-2 LCD DISPLAY 1 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. 2 1 W (High/Low Power): Will be displayed when the transmitter circuits are providing 1 Watt of power to the antenna. When the transmitter is supplying 25 Watts to the antenna, the "1 W" indication will be extinguished.
3.3 OPERATING PROCEDURES 3.3.1 Turning the Power On 1) Rotate the ON/OFF/VOLUME control clockwise to turn the radio on. NOTE When the Power is on, the synthesizer automatically programs for the USA channel frequencies and selects the calling channel 16. (Refer to 16 PLUS operation to change this channel.) Setting the Volume 1) 2) Rotate the SQUELCH control slowly counterclockwise. Background noise will be heard. Rotate the VOLUME control for the desired volume level.
NOTE Initial communication contacts are usually made over channel 16 as all ships and shore stations monitor this channel. Then a shift to a working channel will be necessary. To Select a Weather Channel 1) 2) 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 is selected, the transmitter is always inhibited.
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 stop on the receiving channel until the signal is lost for five seconds or the SCAN key is pressed. To cancel memory scan, press the SCAN key while the radio is scanning.
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 Transmitter/Receiver/PLL circuits 4.2 THE CONTROL SECTION The heart of the control section is the CPU IC201, located on the Front PCB. The CPU controls all of the following items: • Controls the Squelch circuit by detecting a busy signal from the second IF circuit IC5.
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. The RF signal from IC1 is fed to the antenna through a low pass filter. The DC voltage correlative to the RF output is detected by D2 and Q9, amplified by Q24 and fed to IC1.
4.4 SPECIFICATIONS 4.4.1 Transmitter Channels Frequency Stability Frequency Range Channel Spacing Power Output modulation Modulation Audio Response FM Hum & Noise Level Audio distortion Spurious & harmonic Emissions Antenna Impedance Transmitter Protection 53 US/International ±10PPM (±0.001%) (-20°C to +50°C) 156.025 to 157.425 MHz 25 KHz Increments 25 Watts switchable to 1 Watt into 50 Ohms at 13.6 Vdc Frequency modulated 16F3 (±4.
4.4.3 Operating Requirement Input Voltage Current Required Transmit Operating Temperature Duty Cycle Humidity 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. @25°C) 100% at 50°C for 8 hours 4.4.4 Radio Dimensions Height Width Depth Weight 70mm 160mm 120mm 900g (1.
4.5 BLOCK DIAGRAM MIC/PTT UP/ON LPF ANT SW D1 MI402 D4 MI308 BPF TX ON1 PRE DRIVE Q2 2SC4226 1st MIX Q19 2SK506 Q3 2SC4226 1Pole Xtal FIL 21.6MHz +SV DC FIL Q20 2SC3123 1st IF AMP BAND SW Q6 DTC114KE Q5 2SC4116 POV D7 KV1832C D8 ISS226 FIL TX-B SW Q2 DTC114EK Q7 2SA211A SW SW Q15 DTC114EK VCO Q4 2SK508 MOD DC CONT ADT DRIVE Q1 2SC3357 RF AMP Q17 2SC4226 D12 1SS226 BPF BPF IC1 S-AV6 POWER MODULE 13.6V Y 1W D6 ISV214 PWR DET Q2 1SS345 BUFF AMP 13.
4.6 Ray48 ASSEMBLY DRAWING 24 26 35 23 29 22 3 25 5 33 21 8. KNOB SQUELCH 19 7 34 18 17 2 32 20 13 14 31 27 4 16 15 12 11 30 1 10 8 9 6 1. 2. 3. 4. 5. 6. FRONT PANEL ASSEMBLY MID COVER ASSEMBLY REAR COVER FRONT GASKET REAR GASKET FRONT PCB ASSEMBLY 7. MAIN PCB ASSEMBLY 28 9. KNOB POWER/VOLUME 10. POWER/VOLUME/SQUELCH POT NUT 11. O-RING (m6) 12. POWER/VOLUME/SQUELCH PCB ASSEMBLY 13. KEY MAIN 14. KEY CH 15. HOLDER - KEY MAIN 16. HOLDER - KEY CH 17. INTERNAL SPEAKER 18.
20
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 Raymarine Technical Support: 1-800-539-5539 ext. 2444 or 603-881-5200 ext. 2444 You may reach our Technical Support Department Monday to Friday 4:00 AM to 6:00 PM Eastern Time.
On the Internet Visit the Raymarine World Wide Web site for the latest information on Raymarine electronic equipment and systems at: www.raymarine.
SECTION 6 Ray48 MARINE CHANNELS FREQUENCY TABLES 6.1 Ray48 MARINE CHANNELS AND THEIR USAGE CAUTION 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 CH No. Frequency 01A XMIT -- 156.050 Single x 02 03 04 05A ---156.250 156.100 156.150 156.200 156.250 x x x x 06 07A 08 09 10 11 12 13 156.300 156.350 156.400 156.450 156.500 156.550 156.600 156.650 156.300 156.350 156.400 156.450 156.500 156.550 156.600 156.
Frequency CH No. XMIT RCV 66A 67 156.325 156.375 156.325 156.375 68 69 70 71 72 73 74 75 76 77 78A 79A 80A 81A 82A 83A 84 85 86 87 88A 156.425 156.475 156.525 156.575 156.625 156.675 156.725 --156.875 156.925 156.975 157.025 157.075 157.125 157.175 157.225 157.275 157.325 157.375 157.425 156.425 156.475 156.525 156.575 156.625 156.675 156.725 156.775 156.825 156.875 156.925 156.975 157.025 157.075 157.125 157.175 161.825 161.875 161.925 161.975 157.
U.S. NOAA Weather Radio Frequencies Weather Channel Frequency in MHz WX0 WX1 WX2 WX3 WX4 WX5 WX6 WX7 WX8 WX9 163.275 162.550 162.400 162.475 162.425 162.450 162.500 162.525 161.650 161.775 International VHF Marine Radio Channels & Frequencies Frequency CH No. XMIT 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 60 61 62 63 64 65 66 67 68 69 156.050 156.100 156.150 156.200 156.250 156.300 156.350 156.400 156.450 156.500 156.550 156.600 156.650 156.700 -156.800 156.
Frequency CH No. XMIT 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 -156.575 156.625 156.675 156.725 --156.875 156.925 156.975 157.025 157.075 157.125 157.175 157.225 157.275 157.325 157.375 157.425 RCV 156.525 156.575 156.625 156.675 156.725 156.775 156.825 156.875 161.525 161.575 161.625 161.675 161.725 161.775 161.825 161.875 161.925 161.975 162.
SECTION 7 APPENDIX 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. REMEMBER: • Maintain a radio watch on Channel 16. Channel 16 is used for distress and safety purposes only.
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.
USAGE GUIDE Emergency Calling Monitoring Intership Safety U.S.
Emergency Calling Channel 16 Channel 16 & Working Channel If: • Your ship is sinking, or on fire • Someone has been lost overboard • There exists grave and imminent danger If - you wish to establish communications with another station And - you know which working channel the station is monitoring Then - initiate the call directly on that working channel If - you wish to establish communications with another station And - you do not know what working channel the station may be monitoring Then
Monitoring Intership Safety Channel 16 & Working Channel Channel: 6 When - Vessels: Any Use: Communicating navigational and weather warnings to other ships You Must - your VHF station is turned on and it is not being used to exchange communications monitor channel 16 Communicating with U.S.
U.S. Coast Guard Navigation Channel: 22 Channels: 13 Vessels: Any Vessels: Any Use: Working channel for exchange of communications with stations of the U.S. Coast Guard. Use: Safety Communications pertaining to the maneuvering of vessels or the directing of vessel movements 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.
Port Operations Channels: 5, 12, 14, 20, 65, 66, 73, 74 [77] Vessels: 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-tocoast Comments: Channel 77 is limited to communications to and from commercial pilots concerning the movement and docking of vessels. Note: Channels 11, 12, 13 and 14 are used for vessels traffic service on the Great Lakes, St. Lawrence Seaway and designated major ports.
Commercial Marine Operator Channels: 7, 8, 9, 10, 11, 18, 19, 67, 79, 80, [88] Channels: 24, 25, 26, 27, 28, 84, 85, 86, 87, 88 Vessels: Those used primarily for commercial transport of persons or goods, or engaged in servicing other vessels Vessels: Any Use: Communications pertaining to the purpose for which the vessel is used Use: To place a telephone call to any location in the world or to a vessel outside of your transmitting range Between: Commercial transport vessels (ship-to-ship) or b
State Control Environmental Channel: 17 Channel: 15 Vessels: State and local government Vessels: Any (receive only) Use: Coordination, regulation and control of boating activities and the rendering of assistance to vessels. Use: Broadcast of information concerning the environmental conditions in which vessels operate weather, sea conditions, time signals, notices to mariner, hazards to navigation Between: Between: Ship and coast stations associated with state and local governments.
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.
