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9400A
LeCroy 9400A User Manual
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FNyquis
t
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
1.250
kHz
2.500
kHz
2.500
kHz
2.500
kHz
2.500
kHz
2.500
kHz
2.500
kHz
2.500
kHz
2.500
kHz
6.250
kHz
6.250
kHz
6.250
kHz
6.250
kHz
6.250
kHz
6.250
kHz
6.250
kHz
6.250
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
12.500
kHz
25.000
kHz
25.000
kHz
25.000
kHz
25.000
kHz
25.000
kHz
25.000
kHz
25.000
kHz
25.000
kHz
Number
of
Points
5O
125
250
5OO
1250
2500
5000
12500
25000
50
I00
250
500
I000
2500
5000
25000
125
250
625
1250
2500
6250
12500
25000
5O
125
250
5O0
1250
2500
5000
12500
25000
50
100
250
500
I000
2500
5000
25000
RIS/SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
Time/div
2
msec
5
msec
i0
msec
20
msec
50
msec
I00
msec
200
msec
0.5
sec
1
sec
1
msec
2
msec
5
msec
I0
msec
20
msec
50
msec
i00
msec
0.5
sec
I
msec
2
msec
5
msec
10
msec
20
msec
50
msec
100
msec
200
msec
0.2
msec
0.5
msec
i
msec
2
msec
5
msec
I0
msec
20
msec
50
msec
i00
msec
0.I
msec
0.2
msec
0.5
msec
i
msec
2
msec
5
msec
i0
msec
50
msec
11-25
Fast
Fourier
Option
(WP02,
Waveform
Processing
V
2.06FT)
206
208
Table of Contents
Default Chapter
3
Table of Contents
3
Documentation Discrepancies
30
Service Procedure
30
Return Procedure
30
Initial Inspection
31
2 Product Description
33
Introduction
33
9400A Architecture
33
Adcs and Memories
34
Trigger
35
Automatic Calibration
35
Display
35
Manual and Programmed Control
35
3 Installation
37
Safety Information
37
Operating Voltage
37
Switching on the 9400A
38
4 Display Layout
39
Menu Field
39
Time and Frequency Field
40
Trigger Delay Field
40
Abridged Front Panel Status Field
40
Displayed Trace Field
40
Message Field
41
5 Manual Operation
43
Front-Panel Controls
46
Time Base
47
Trigger
49
Displaying Traces
54
Display Control
54
Screen Adjustments
56
Cursors
57
Menu Controls
60
Store Menu
60
Panel Status Menu
62
Memory Status
64
Special Modes
67
Auto-Store Mode
67
5.2.5.2 Common Expand Mode
68
RS-232-C Setup
68
Plotter Setup
70
6 Rear Panel Controls and Connectors
73
Fuse Protection
73
Accessory Power Connectors
73
Battery Pack
73
GPIB and RS-232-C Port Selection
73
Plotter Connector
74
7 Remote Operations
75
RS-232-C Ports
75
GPIB Port (Option OP02 Only)
76
C~IB and RS-232-C Command Format
77
Introduction
77
Compound Commands
78
Command Format
78
Answers from the 9400A
79
Command Synchronization with Data Acquisition
80
Character Strings
81
Prompt
81
Errors and Adapted Values
82
Data Block Transfers
82
Commands
87
Notation
87
Acquisition Parameter Commands
88
Display Commands
91
Plotter Commands
96
Transfer Commands
98
Other Remote Commands
110
GPIB Interface Message Interpretation
118
7.6.10 RS-232-C Only Commands
119
Binary Format of Waveform Descriptors
123
Format of Trigger Time(S)
129
Data Addressing Conventions
130
Waveform Data in 8-Bit Format
132
Waveform Data in 16-Bit Format
134
Use of the Service Request (SRQ) Interrupts
134
Service Request in GPIB
134
7.11.2 Service Request in RS-232-C
137
8 Basic 9400A Waveform Measurements and Operating Procedures
141
Single Shot Acquisition
141
Slow Signal Recording
146
Window Triggering
147
Storing and Recalling Front Panel Setups
147
Signal Storage in Memories C, D
148
Auto-Store in Memory C, D
150
Common Expand Mode
151
Remote Control Via GPIB (Option OP02 Only)
156
On a GPIB Bus (Option OP02 Only)
157
9 Getting the most out of Your 9400A
161
Front Panel Controls
161
Accurate Time Measurements
163
Auto-Calibration
164
I0.I
165
Processing Capabilities I0-I
165
Setting up a Waveform Processing Function Manually
166
10.2.1 Summed Average
167
Continuous Average
168
Extrema
169
10.2.4 Arithmetic
170
Functions
170
Smoothing
171
Additional Values in the Descriptors of Processed Waveforms
177
Vertical Scaling Units
181
Index of Topics
181
11 Fast Fourier Waveform Processing Option (WP02, V 2.06FT)
183
Processing Capabilities II-I
183
FFT Processing Examples
186
Remote Control of FFT Processing
189
Remote Commands
189
FFT Processed Waveforms
191
FFT Application Hints
193
Some Practical Suggestions
193
Computation Speed of FFT
197
FFT 9400A Glossary
198
Errors and Warnings
203
Table of Nyquist Frequencies
204
References
211
4
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LeCroy 9400A Specifications
General
Brand
LeCroy
Model
9400A
Category
Test Equipment
Language
English
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