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2445B
Tektronix 2445B User Manual
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Applications
C
H
1
SIGNA
L
WIT
H
UNWANTE
D
LIN
E
FREQUENC
Y
COMPONEN
T
C
H
2
SIGNA
L
FRO
M
LIN
E
FRFQUENC
Y
SOURC
E
SIGNA
L
WIT
H
LIN
E
FREQUENC
Y
COMPONEN
T
CANCELE
D
OU
T
{A
!
C
H
1
AN
D
C
H
2
SIGNAL
S
r
:
;
:
:
i
18
)
RESULTAN
T
SIGNA
L
(3832-15
)
5854-1
3
Figur
e
3-2
.
Eliminatin
g
common-mod
e
signals
.
2465B/2455B/2445
B
Operator
s
3-
7
72
74
Table of Contents
Default Chapter
9
Table of Contents
9
Operators Safety Summary
14
Genera! Information
21
Preparation for Use
22
Safety
22
Line Voltage Selection
22
Line Fuse
22
Power Cord
24
Instrument Cooling
25
Start-Up
25
Repackaging for Shipment
26
2 Operation
27
Fundamentals
28
Parametric Measurements
28
Getting a Display
29
Vertical
31
Horizontal
33
Trigger Controls
33
Video Triggering
36
Readout
37
Measurements with Cursors
40
Voltage Measurements
42
Display Operation
42
Signal Connections
43
Magnify Waveform Details with Delayed-Sweep
44
B-Trigger Operation
45
Delta-Delay-Time
46
Single-Delay-Time Measurements
47
Time Interval Measurement
48
Precision Timing
49
Triggered Delta-Delay-Time Measurements
50
Time Interval Resolution
52
Measurement Updating
52
Frequency, Period, and Totalize Counting
54
Frequency Measurement with External Reference (Option 1E)
55
Delay Sweeps by Event Counts
55
Logic Triggering
59
Word Recognizer Operation
61
The Word out Signal
62
Frequency Limit for Auto Level or Parametric Measurements
62
DMM
62
Save and Recall Operation
63
3 Applications
66
Peak-To-Peak Voltage
67
Absolute Voltages Using Cursors
67
Noise Immunity
68
DC Voltage Measurement
69
Amplitude Modulation
69
Frequency Modulation
70
Measuring Video Signals in IRE Units
71
Avoiding False Displays with Multi-Mode Signals
71
Algebraic Addition to Detect Coincidence or Cancel Interference
71
Observing Coincidence of Digital Signals
72
Measuring Off-Ground Signals and Cancelling Interference
72
2465B/2455B/2445B Operators
73
Period and Frequency
74
Rise Time and Fall Time
75
Propagation Delay
77
Setup and Hold Times
78
Slew Rate
79
Time Ratio (Duty Factor)
79
Phase Difference between Two Signals
81
Measuring Millivolt Signals
84
4 Checks and Adjustments
86
Introduction
87
Initial Setup
87
Trace Rotation and Adjustment
88
Astigmatism Adjustment
88
Auto DC Balance Routine
89
Probe Compensation
90
Matching Channel 2 Delay
91
Amplitude Check
92
Timing Check
93
Controls, Connectors, and Indicators
94
Introduction
95
Power and Display
95
Setup and Vertical
98
Horizontal
106
Delay and Delta Controls
109
Rear Panel
121
DMM
123
DMM Displays
127
Display-Mode Interactions
127
Options and Accessories
170
Option 1R
171
Power Cord Options
172
Standard Accessories
173
Optional Accessories
175
F^ Appendix A
177
Extended Functions with Diagnostic Exercisers
177
3 Appendix B
183
Sequence Programming and Operation
183
Executing Sequences
185
Q Appendix C
187
Power up Tests
187
Kernel Test
187
Confidence Tests
187
Q Appendix D
190
Delta-Time and Delta-Delay-Time Accuracy under Noted Conditions for Thec/T/T Option
190
Delay-Time Accuracy under Noted Conditions for the C/T/T Option
191
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Tektronix 2445B Specifications
General
Brand
Tektronix
Model
2445B
Category
Test Equipment
Language
English
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