Wavetek 147 Especificaciones descargar pdf (Pagina 13)

Contents

xiii

Decision Boundaries..............................................................................166

Common Impairment Types ..................................................................167

QAM Modulation and Symbol Rates ....................................................169

Modulation Error Ratio (MER) .............................................................169

Bit Error Rate (BER) .............................................................................169

Basic Operation ...........................................................................................169

CONSTELLATION Main Screen Features...........................................170

Viewing the QAM Level Display..........................................................171

Editing the Modulation Format or Symbol Rate....................................171

Using the Zoom Feature.........................................................................172

Equalizer Mode................................................................................................174

Equalizer Main Screen Features..................................................................174

Basic Operation ...........................................................................................175

EQUALIZER Main Screen....................................................................175

In-Channel Frequency Response Screen ...............................................177

In-Channel Group Delay Screen............................................................177

Chapter 10

Automatic Test

Introduction .....................................................................................................179

Test Locations..................................................................................................180

Parameters and Test Location Types...........................................................181

Creating and Editing Test Locations ...........................................................182

Entering a New Location .......................................................................183

Deleting an Existing Location ...............................................................183

Editing an Existing Location .................................................................183

Performing an Auto Test ................................................................................184

Choose Location..........................................................................................184

Edit Location ...............................................................................................185

Select Probe Point........................................................................................186

Compensation ..............................................................................................188

Results File Name........................................................................................188

Type of Test.................................................................................................189

Set Schedule...........................................................................................189

Temperature.................................................................................................190

Canceling an Auto Test ...............................................................................191

Auto Test Results.............................................................................................191

Viewing Intervals.........................................................................................194

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Wavetek 147 Especificaciones Pagina 13