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Raymarine Manuals
Radar
Raytheon R20X
Instruction manual
Raymarine Raytheon R20X Instruction Manual
Raster scan radar systems
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
General Description
System Description
Display Units
Cable Requirements
Scanner Unit R20X
Interunit Cable
Scanner Unit R21X
Basic System Components
Specifications
Cable Information
Specification of Composite Cable
Composite Cable
Installation
Unpacking and Inspection
Equipment Supplied
Spare Parts
Planning
General System Diagram
Installation of Scanner Unit
Selecting the Location
Mounting the Scanner Unit
Installing the Radome Scanner
Sail Beat Mast Mounting
Universal Mast Mount
Typical Installation for Sailboat Showing Inline Connection Mast Base
Connecting the Cable in the Radome Antenna
Typical Wiring at Radome Scanner
Connecting Procedure for Radome Scanner Unit
Scanner Unit Assembly
Array/Scanner Unit Assembly Procedure
Mounting the Open Array Scanner Unit
Mounting Dimensions
Cabling the Scanner Unit
Typical Mounting Locations
Scanner Unit Cable Connection Procedure
Wiring Diagram for X Series Open Array Scanner Unit
Installation of Display Unit
Mounting the Display Unit
Console Mounting the Display Unit
DC Power Connection
Grounding the Radar System
Power Cable Size Versus Length
Connection to Loran C Receivers
Sample Navigator Connections
The BNC Connector Assembly Procedures
Installation of the Magnetic Flux Sensor
Minimum Mounting Distances
General Magnetic Flux Sensor Wiring
Typical Magnetic Flux Sensors Outline Diagrams
External Alarm
Typical Magnetic Sensor Outline Diagram
Initial Operation and Checkout
Inspection after the Installation
Operational Checkout
Post Installation Set up Adjustments
Display Timing
0 NM Adjustment
Timing Preset
STC Preset
Buzzer Volume Adjustment
AVR Voltage Adjustment
Comparator Level Adjustment
Operation
Operating Controls
Functions of the Controls
Range Scale up and down Keys
Layout of Display and Controls
Tune Control
Gain Control
Relation of Range, Rings and Pulse Length
Sea Clutter Control
Rain Clutter Control
Variable Range Marker Controls
Electronic Bearing Line Controls
Off Center Key
Zoom Key
Mode Key
LL/TD Key
Waypoint Key
Alarm Key Operation
Making Special Zones
Alarm Zone Memory
Memorizing an Alarm Zone
Target Expander Key
Interference Rejection Key
Ship's Heading Marker Key
Range Rings Key
Timed TX Key
Brilliance/Dimmer Key
To Turn Timed TX Mode on
To Turn Timed TX Mode off
Using the Controls
Interference Rejection
Expansion Mode
Radar Interference
Navigation with the Radar
Obtaining a Position Fix
Collision Avoidance Techniques
Determining Your Radar Line-Of-Sight Range
Radar Horizon
False Echoes
Side Echoes
Indirect Echoes
Multiple Echoes
Ghost Echoes
Shadows
Maintenance
User Preventive Maintenance
Radome Scanner
Lubrication
Mounting
Open Array Scanner
The Antenna Array
Rotating Drive Unit
Scanner Oil Seal
Scanner Unit Interior
Display Unit
Adjustment and Fault Finding
Adjustments Upon Replacing Components
CRT Monitor Adjustment
Tune Indicator Adjustment
Troubleshooting
Fault Finding
Fuse
Operation Check List
Fuses Used
Troubleshooting Guide
Typical Voltages and Resistances
Radome Radar
Open Array Radar
Of Transistors Used
Of Diodes Used
Of Integrated Circuit Used
Technical Description
Motor-Encoder
Radiator Rotating Mechanism
Bearing Reset Sw
Radiator Pattern
Bearing Reset Circuit
Transmitter
Modulator
Range, Pulse Length, and PRG Relationships
Magnetron Transmitter
Circulator and Diode Limiter
Time Table of the Transmitter
Receiver Unit Block Diagram
MIC Frontend
Receiver PCB
Power Supply Unit
Main Control PCB
Video Input Circuit
A/D Converter
Sampling Clock Generator
Video Processor Circuit
Video Memory
Graphic Control Memory
Video Output
Optional Inputs
Control PCB
Power Supply PCB
Display Monitor
Interunit Wiring X Series Radar
Outline Drawing of R20X/R21X Display Unit
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General Description
2
System Description
3
Scanner Unit R21X
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Distributed by
Any reference to Raytheon or
RTN in this manual should be
interpreted as Raymarine.
The names Raytheon and RTN
are owned by the
Raytheon Company.
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Troubleshooting
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Troubleshooting Guide
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Summary of Contents for Raymarine Raytheon R20X
Page 1
Distributed by Any reference to Raytheon or RTN in this manual should be interpreted as Raymarine. The names Raytheon and RTN are owned by the Raytheon Company.
This manual is also suitable for:
Raytheon r21x
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