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9081
Racal Instruments 9081 Manuals
Manuals and User Guides for Racal Instruments 9081. We have
1
Racal Instruments 9081 manual available for free PDF download: Maintenance Manual
Racal Instruments 9081 Maintenance Manual (153 pages)
synthesized signal generators
Brand:
Racal Instruments
| Category:
Inverter
| Size: 9.3 MB
Table of Contents
Table of Contents
12
Distortion Check
14
Channel Spacing Control
46
120Mhz LOOP ASSEMBLY 19-0849
57
Introduction
57
120Mhz Oscillator
57
300Khz Reference Output
57
Master Reference Inputs
58
Counter Assembly
58
Introduction
58
Logic Voltage Levels
58
Counter Principles
59
Reference Frequency
59
Time Base and Shift Delay Data
59
Multiplex Readout
59
Shift Data
62
Counter Assembly Data
62
Circuit Description
63
Carrier Input
63
Range
63
Select
63
Time Base Drive
63
Time Base Encoding and Delay
63
Trailing Digit Blanking
64
Leading Digit Blanking
64
Complete Display Blanking
64
Audio Oscillator Assembly 19-0847
65
Introduction
65
Audio Oscillator Circuit
65
Fm Loop Assembly 19-0844
66
Principles of the System
66
Circuit Description: 400Khz Loop
66
Sweep Circuit
68
Deviation Monitoring
69
Modulation Audio FM
70
Phase Modulation ((^M)
70
FM Switching
70
Power Supply
72
Mains Voltage Selection Switches
73
List of Test Equipment Required
74
Power Supply Tests
75
Removal of Covers
75
Mains Input Resistance Readings
76
Tuning Checks
77
Carrier Frequency Ranges
79
Preliminary System Checks
80
Output System
80
FM System
81
Calibration
82
Output System Assembly
82
Audio Oscillator Assembly 19-0847
85
Fm Loop Assembly
87
Distortion Check
89
Level Accuracy Check
91
Spurious Check
92
Far-Off and Close-In Noise Checks
93
Residual Fm Check
94
Fm Deviation Check
95
Fm Distortion Check
97
Phase Modulation Check
98
Am Frequency Response Check
101
Reconnection of High Level Amplifier
102
Level Accuracy Check
102
Am and Fm Frequency Response Check
103
Am Depth and Distortion Check
103
Attenuator Check
103
Distortion Check
103
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