Raytheon R41 - Power Cable Size Versus Length; Connection to Loran C Receivers

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High Voltage Warning4
Radiation Hazard4
Drawings5
General Description6
Physical Description7
Spare Parts7
Available Options8
Display Unit8
Scanner Unit9
Specifications10
Cable Information12
Installation14
Planning14
General System of R41 Radar14
Installation of Scanner Unit15
Unpacking and Inspection15
Selecting the Location15
Mounting the Scanner Unit15
Outline Drawing of Scanner Unit16
Connecting the Cable17
Typical Wiring at R41 Scanner17
Connecting Procedure for Scanner Unit18
Installation of Display Unit20
DC Power Connector20
Outline Drawing of M88339 Display Unit21
Display Rear Panel22
Power Cable Size Versus Length23
Connection to Loran C Receivers23
Interconnections of R41 Radar24
Diagram of BNC Connector Assembly25
Installation of Options26
Installation of Optional Dual Station Junction Box26
Installation Layout of Dual Display Configuration27
Circuit Drawing of M89367D Dual Station Junction Box28
Installation of Optional Magnetic Flux Sensor29
Minimum Mounting Distances29
Initial Operations and Checkout of Radar30
Magnetic Flux Sensor Wiring30
Relative Bearing Alignment32
Display Timing33
Comparator Level Adjustment33
Operation35
Operating Controls35
Layout of Controls35
Relation of Range, Rings and Pulse Length36
Tune37
Gain37
Sea Clutter37
Rain Clutter37
Electronic Bearing Line38
Seaguard Alarm38
Display Mode Selection38
STD Mode38
Optional Magnetic Flux Sensor39
NAV Mode39
WPT Mode39
Lat/Long to42
Hold42
Interference Rejection42
Range Rings and Ship's Heading Marker42
Range and Bearing Measurement43
Using the Controls45
Tune Control45
Gain Control45
Sea Clutter Control45
Rain Clutter Control46
Radar Interference46
Radar Ranging47
Expansion Mode47
Radar Horizon47
False Echoes48
Side Echoes48
Indirect Echoes48
Multiple Echoes49
Ghost Echoes49
Shadows50
Maintenance51
Radiator52
Rotating Mechanism52
Mounting53
Lubrication to the Radiator Support Casting53
Drive Motor53
Cleaning the Screen54
High Voltage Circuit54
Adjustment and Fault Finding55
Adjustment for Replacing Components55
Display PCB56
Intensity Adjustment56
Focus Adjustment56
H. Hold56
Main Board PCB Adjustment57
Power Supply Adjustment, Centering Adjustment58
Initial Programming of Magnetic Flux Sensor59
Switch SWC59
To Enter Selected Function59
Table for Quick Selection of SWA, SWB Settings60
Compass Compensation60
Auto Deviation Correction61
Manual Correction Deviation62
Variation Adjustment62
Magnetic Flux Sensor Component Layout63
Trouble-Shooting64
Fault Finding64
Fuse64
Operation Check List65
Fuses Used65
Trouble Shooting Guide66
Typical Voltages and Resistances68
Inter-Unit Terminal Board68
Typical Waveforms70
Replacement of Major Components71
Technical Description73
Block Diagram Description74
Motor-Encoder80
Radiator Rotating Mechanism80
Radiator Pattern80
Bearing Reset Switch81
Motor Control Circuit81
Modulator81
Magnetron Transmitter82
Diode Limiter83
MIC Frontend83
I.F. Amplifier84
Second Detector84
Video Circuit84
AVR Circuit84
Parts List89
Electrical Parts List90
Mechanical Parts Location List113

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Raytheon R41 - Power Cable Size Versus Length; Connection to Loran C Receivers

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