LeCroy WavePro 7300A - Local Feature Parameters

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X-Stream Operator’s Manual

WM-OM-E Rev I 385

Local Feature Parameters

lbase Local Base

Definition

The value of the baseline for a local feature.

Description

The average value of the local baselines for all local features between the

parameter cursors is displayed as lbase. For histograms, each individual

baseline value for all local features between the parameter cursors is

provided.

Parameter Settings

Selecting this parameter from the Measure menus prompts you for a

hysteresis setting, which allows you to set the hysteresis value to a

specified number of vertical divisions.

Example

Main Page

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Introduction19
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- Specifications28
  - Vertical System28
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  - Acquisition Modes31
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  - Triggering System31
  - Basic Triggers32
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  - SMART Triggers with Exclusion Technology32
  - Automatic Setup32
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  - Color Waveform Display33
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  - Interface34
  - Auxiliary Output34
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  - Master Analysis Package (XMAP)36
  - Jitter and Timing Analysis Package (JTA2)36
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Basic Controls53
- Front Panel Controls53
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- Trace Descriptors60
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Installation66
- Hardware66
  - Instrument Rear Panel66
- Software66
  - Checking the Scope Status66
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- Default Settings67
  - Wavemaster and Wavepro 7000A Series Scopes67
- Ddascopes68
- Adding a New Option68
Restoring Software70
- Using the Recovery Disk - Non-Windows XP Scopes70
- System Recovery - Windows XP Scopes70
- Recovery Procedure70
- Removable Hard Drive77
- External Monitor78
- Writable CD Drive Option79
Connecting to a Signal83
- Prolink Interface83
  - Connecting the Adapters84
- Probus Interface84
- AP-1M Hi-Z Adapter85
- Auxiliary Output Signals85
  - To Set up Auxiliary Output86
Sampling Modes87
- To Select a Sampling Mode87
- Single-Shot Sampling Mode87
  - Basic Capture Technique87
- Sequence SAMPLING Mode Working with Segments88
- RIS Sampling Mode -- for Higher Sample Rates92
- Roll Mode93
Vertical Settings and Channel Controls94
- Adjusting Sensitivity and Position94
  - To Adjust Sensitivity94
  - To Adjust the Waveform's Position94
- Coupling94
  - Overload Protection94
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- Probe Attenuation95
  - To Set Probe Attenuation95
- Bandwidth Limit95
  - To Set Bandwidth Limiting95
- Linear and (Sinx)/X Interpolation95
  - To Set up Interpolation95
  - Inverting Waveforms96
- Quickzoom96
  - To Turn on a Zoom96
- Finding Scale96
  - To Use Find Scale96
- Variable Gain96
  - To Enable Variable Gain96
- Channel Deskew96
  - To Set up Channel Deskew96
Timebase and Acquisition System97
- Timebase Setup and Control97
- Autosetup97
- Dual Channel Acquisition97
  - Combining of Channels97
- SDA 11000 DBI Controls98
- SMART Memory98
  - To Set up SMART Memory99
Triggering100
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- Simple Triggers104
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  - To Set up Aux Input121
Display Formats122
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- Persistence Setup123
- To Set up Persistence126
- Screen Saver127
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  - To Move a Channel or Math Trace127
- Zooming Waveforms128
- XY Display131
  - To Set up XY Displays131
Save and Recall133
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Printing and File Management138
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- Printing138
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  - Hard Disk Partitions139
100Base-T Ethernet Connection140
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- Communicating over the Network140
  - Windows Setups140
  - System Restore141
Track Views142
- Creating and Viewing a Trend142
- Creating a Track View142
Histograms144
- Creating and Viewing a Histogram144
- Histogram Parameters147
- Histogram Theory of Operation160
- Histogram Parameters (XMAP and JTA2 Options)163
- Histogram Peaks164
- Binning and Measurement Accuracy165
Waveform Measurements166
- Measuring with Cursors166
  - Cursor Measurement Icons166
- Cursors Setup166
  - Quick Display166
  - Full Setup167
- Overview of Parameters167
- Statistics171
- To Apply a Measure Mode171
- Measure Modes171
- Parameter Math (Xmath or XMAP Option Required)172
- Measure Gate176
  - To Set up Measure Gate177
- Help Markers178
  - To Set up Help Markers179
  - To Turn off Help Markers180
- To Customize a Parameter181
- Parameter Calculations182
- List of Parameters186
- Qualified Parameters186
  - Range Limited Parameters213
- Waveform Gated Parameters215
  - To Set up Waveform Qualifiers215
Waveform Math216
- Introduction to Math Traces and Functions216
- Math Made Easy216
  - To Set up a Math Function216
- Resampling to Deskew217
  - To Resample217
- Rescaling and Assigning Units218
  - To Set up Rescaling218
- Averaging Waveforms218
- Enhanced Resolution220
  - How the Instrument Enhances Resolution220
- To Set up Enhanced Resolution (ERES)223
- Waveform Copy223
- Waveform Sparser223
  - To Set up Waveform Sparser224
- Interpolation224
  - To Set up Interpolation224
- Fast Wave Port225
- Example Applications227
- Fft232
  - Why Use FFT232
- Improving Dynamic Range235
- Record Length235
- FFT Algorithms235
  - Glossary237
  - FFT Setup240
Analysis242
- Pass/Fail Testing242
- Setting up Pass/Fail Testing243
Utilities248
- Status248
  - To Access Status Dialog248
- Remote Communication248
  - To Set up Remote Communication248
  - To Configure the Remote Control Assistant Event Log248
- Hardcopy249
- Aux Output250
- Date & Time250
- Options252
- Preferences252
- Acquisition Status254
- Service254
- Show Windows Desktop254
- Touch Screen Calibration255
Customization256
- Customizing Your Instrument256
- Number of Samples265
- Calling Excel from Your Instrument265
- Writing VB Scripts286
- VBS Keywords and Functions301
- Debugging Scripts309
- Horizontal Control Variables309
- Calling MATLAB from the Instrument313
Customdso325
- Introduction - What Is Customdso325
- Invoking Customdso325
- Customdso Basic Mode326
- Editing a Customdso Setup File326
- Creating a Customdso Setup File328
- Customdso Plugin Mode328
- Creating a Customdso Plugin328
- Properties of the Control and Its Objects330
- Removing a Plugin333
- First Example Plugin - Exchanging Two Traces on the Grids333
- Second Example Plugin - Log-Log FFT Plot336
- Control Variables in Customdso338
Labnotebook339
- Introduction to Labnotebook339
- Preferences339
- Creating a Notebook Entry340
- Recalling Notebook Entries343
- Creating a Report344
- Formatting the Report346
- Managing Notebook Entry Data347
Dda349
- DDA Front Panel Controls349
- DDA Specifications349
- Drive Analysis Overview351
- Setting up Channel Emulation356
  - Drive Analysis Setup356
  - Channel Setup358
- Setting up Analog Compare360
  - Drive Analysis Setup360
  - Channel Setup361
- Setting up Noise Analysis361
- Setting up Disk Triggers363
- Setting up Zoom365
Dda Reference Information366
- Channel Analysis Concepts366
- Setting up to Use Drive Channel Analysis369
- Choosing an Analysis Method372
- Channel Emulation Without Reference374
  - Notes on Using Channel Emulation Without Reference376
- Channel Emulation with Reference377
  - Notes on Using Channel Emulation with Reference379
- Using Analog Compare380
  - Notes on Using Head/Analog Compare381
- Local Feature Concepts382
- Local Feature Parameters387
- Disk Standard Parameters402
- Disk PRML Parameters410
- Noise Parameters419
- PRML Channel Emulation422
- User Defined Trellis429

LeCroy WavePro 7300A - Local Feature Parameters

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