How it Works
Rohde & Schwarz
Loading...
ESRP Series
User Manual
1094 pgs16.14 Mb0
Table of contents
Loading...

Rohde & Schwarz ESRP Series, ESRP3, ESRP7, FSV-B9, ESRP-K53 User Manual

...
Download
Page 1
R&S®ESRP EMI Test Receiver
User Manual
(;ÙØ]2)
User Manual
Version 08
Page 2
This manual covers the following products:
●
R&S ESRP3 (1316.4500.03)
●
R&S ESRP7 (1316.4500.07)
●
R&S FSV-B9 (1310.9545.02)
●
R&S ESRP-K53 (1316.4639.02)
●
R&S ESRP-K56 (1316.4897.02)
The contents of this manual correspond to firmware version 3.46 or higher.
© 2018 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 Email: info@rohde-schwarz.com Internet: www.rohde-schwarz.com Subject to change – Data without tolerance limits is not binding. R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG. Trade names are trademarks of the owners.
1175.7445.02 | Version 08 | R&S®ESRP
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®ESRP is indicated as R&S ESRP.
Page 3
1
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent personal injury or instrument damage.
● Do not open the instrument casing.
● Read and observe the "Basic Safety Instructions" delivered as
printed brochure with the instrument.
● Read and observe the safety instructions in the following sections.
Note that the data sheet may specify additional operating conditions.
● Keep the "Basic Safety Instructions" and the product documentation
in a safe place and pass them on to the subsequent users.
Riesgo de lesiones y daños en el instrumento
El instrumento se debe usar de manera adecuada para prevenir descargas eléctricas, incendios, lesiones o daños materiales.
● No abrir la carcasa del instrumento.
● Lea y cumpla las "Instrucciones de seguridad elementales"
suministradas con el instrumento como folleto impreso.
● Lea y cumpla las instrucciones de seguridad incluidas en las
siguientes secciones. Se debe tener en cuenta que las especificaciones técnicas pueden contener condiciones adicionales para su uso.
● Guarde bien las instrucciones de seguridad elementales, así como
la documentación del producto, y entréguelas a usuarios posteriores.
Safety Instructions Instrucciones de seguridad Sicherheitshinweise Consignes de sécurité
1171.1307.42 - 05
Page 4
2
Gefahr von Verletzungen und Schäden am Gerät
Betreiben Sie das Gerät immer ordnungsgemäß, um elektrischen Schlag, Brand, Verletzungen von Personen oder Geräteschäden zu verhindern.
● Öffnen Sie das Gerätegehäuse nicht.
● Lesen und beachten Sie die "Grundlegenden Sicherheitshinweise",
die als gedruckte Broschüre dem Gerät beiliegen.
● Lesen und beachten Sie die Sicherheitshinweise in den folgenden
Abschnitten; möglicherweise enthält das Datenblatt weitere Hinweise zu speziellen Betriebsbedingungen.
● Bewahren Sie die "Grundlegenden Sicherheitshinweise" und die
Produktdokumentation gut auf und geben Sie diese an weitere Benutzer des Produkts weiter.
Risque de blessures et d'endommagement de l'appareil
L'appareil doit être utilisé conformément aux prescriptions afin d'éviter les électrocutions, incendies, dommages corporels et matériels.
● N'ouvrez pas le boîtier de l'appareil.
● Lisez et respectez les "consignes de sécurité fondamentales"
fournies avec l’appareil sous forme de brochure imprimée.
● Lisez et respectez les instructions de sécurité dans les sections
suivantes. Il ne faut pas oublier que la fiche technique peut indiquer
des conditions d’exploitation supplémentaires.
● Gardez les consignes de sécurité fondamentales et la
documentation produit dans un lieu sûr et transmettez ces documents aux autres utilisateurs.
1171.1307.42 - 05
Page 5

Customer Support

Technical support – where and when you need it
For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz equipment.
Up-to-date information and upgrades
To keep your instrument up-to-date and to be informed about new application notes related to your instrument, please send an e-mail to the Customer Support Center stating your instrument and your wish. We will take care that you will get the right information.
Europe, Africa, Middle East
North America
Latin America
Asia/Pacific
China
Phone +49 89 4129 12345
customersupport@rohde-schwarz.com
Phone 1-888-TEST-RSA (1-888-837-8772)
customer.support@rsa.rohde-schwarz.com
Phone +1-410-910-7988
customersupport.la@rohde-schwarz.com
Phone +65 65 13 04 88
customersupport.asia@rohde-schwarz.com
Phone +86-800-810-8228 / +86-400-650-5896
customersupport.china@rohde-schwarz.com
1171.0200.22-06.00
Page 6
R&S®ESRP

Contents

Contents
1 Preface.................................................................................................. 19
1.1 For Your Safety............................................................................................................19
1.2 Conventions Used in the Documentation.................................................................19
1.2.1 Typographical Conventions...........................................................................................19
1.2.2 Conventions for Procedure Descriptions.......................................................................20
1.2.3 Notes on Screenshots...................................................................................................20
1.3 How to Use the Help System......................................................................................20
2 Documentation Overview....................................................................23
2.1 Getting Started Manual...............................................................................................23
2.2 User Manuals and Help...............................................................................................23
2.3 Service Manual............................................................................................................ 23
2.4 Instrument Security Procedures................................................................................24
2.5 Basic Safety Instructions........................................................................................... 24
2.6 Data Sheets and Brochures....................................................................................... 24
2.7 Release Notes and Open Source Acknowledgment (OSA).....................................24
2.8 Application Notes, Application Cards, White Papers, etc.......................................24
3 Quick Start............................................................................................25
3.1 Front and Rear Panel View.........................................................................................25
3.1.1 Front Panel View...........................................................................................................25
3.1.1.1 Function Keys on the Front Panel.................................................................................26
3.1.1.2 Touchscreen Display.....................................................................................................29
3.1.1.3 Connectors on the Front Panel..................................................................................... 30
3.1.1.4 Optional Front Panel Connectors..................................................................................32
3.1.2 Rear Panel View............................................................................................................33
3.1.2.1 Standard Rear Panel Connectors................................................................................. 33
3.1.2.2 Optional Rear Panel Connectors.................................................................................. 36
3.2 Preparing for Use........................................................................................................ 36
3.2.1 Putting into Operation................................................................................................... 36
3.2.1.1 Unpacking and Checking the Instrument...................................................................... 37
3.2.1.2 Accessory List............................................................................................................... 38
3.2.1.3 Placing or Mounting the Instrument.............................................................................. 38
3User Manual 1175.7445.02 ─ 08
Page 7
R&S®ESRP
3.2.1.4 Connecting the AC Power.............................................................................................40
3.2.1.5 Changing the AC Supply Fuse......................................................................................40
3.2.1.6 Using an Optional DC Power Supply............................................................................ 40
3.2.1.7 Switching the Instrument On and Off............................................................................ 41
3.2.1.8 Maintenance..................................................................................................................42
3.2.1.9 Performing a Self Alignment and a Self Test.................................................................43
3.2.1.10 Checking the Supplied Options.....................................................................................43
3.2.4.1 Selecting the Frequency Reference Signal...................................................................46
3.2.4.2 Setting the Date and Time.............................................................................................46
3.2.4.3 Aligning the Touchscreen..............................................................................................47
Contents
3.2.2 Connecting USB Devices..............................................................................................44
3.2.3 Connecting an External Monitor....................................................................................45
3.2.4 R&S ESRP Setup..........................................................................................................45
3.2.4.4 Setting the Screen Colors............................................................................................. 48
3.2.4.5 Setting the Display Power Save Function..................................................................... 50
3.2.4.6 Selecting and Configuring Printers................................................................................51
3.2.5 Windows Operating System..........................................................................................53
3.2.5.1 Virus Protection.............................................................................................................54
3.2.5.2 Service Packs and Updates.......................................................................................... 54
3.2.5.3 Login............................................................................................................................. 54
3.2.5.4 Accessing the Start Menu............................................................................................. 56
3.2.5.5 Accessing the Windows Taskbar...................................................................................57
3.2.6 Configuring the GPIB Interface..................................................................................... 57
3.3 Firmware Update and Installation of Firmware Options..........................................58
3.3.1 Firmware Update...........................................................................................................58
3.3.2 Activating Firmware Options......................................................................................... 59
3.4 Basic Operations.........................................................................................................60
3.4.1 Information in the Diagram Area................................................................................... 60
3.4.1.1 Channel Display............................................................................................................ 61
3.4.1.2 Display of Hardware Settings........................................................................................62
3.4.1.3 Measurement Settings Information............................................................................... 63
3.4.1.4 Diagram-specific and Trace Information....................................................................... 64
3.4.1.5 Instrument and Status Information................................................................................ 66
4User Manual 1175.7445.02 ─ 08
Page 8
R&S®ESRP
3.4.2.1 Toolbar.......................................................................................................................... 68
3.4.2.2 Touchscreen..................................................................................................................69
3.4.2.3 On-screen Keyboard..................................................................................................... 70
3.4.2.4 Keypad.......................................................................................................................... 71
3.4.2.5 Rotary Knob.................................................................................................................. 72
3.4.2.6 Arrow Keys, UNDO/REDO Keys...................................................................................72
3.4.2.7 Softkeys........................................................................................................................ 73
3.4.2.8 Context-sensitive Menus...............................................................................................74
3.4.2.9 Dialog Boxes................................................................................................................. 75
3.4.3.1 Entering Numeric Parameters.......................................................................................76
3.4.3.2 Entering Alphanumeric Parameters.............................................................................. 76
Contents
3.4.2 Means of User Interaction............................................................................................. 68
3.4.3 Setting Parameters....................................................................................................... 76
3.4.3.3 Navigating in Dialog Boxes........................................................................................... 78
3.4.4 Changing the Display.................................................................................................... 81
3.4.4.1 Changing the Focus...................................................................................................... 81
3.4.4.2 Switching between Split and Maximized Display.......................................................... 81
3.4.4.3 Soft and Mini Soft Front Panel Display......................................................................... 81
3.4.4.4 Enlarging the Display Area............................................................................................84
3.4.4.5 Displaying the Toolbar...................................................................................................84
3.4.4.6 Zooming into the Diagram.............................................................................................84
3.4.4.7 Adding a Title to the Diagram Header...........................................................................86
3.4.4.8 Removing the Diagram Footer...................................................................................... 87
3.4.4.9 Selecting a Theme........................................................................................................ 87
3.4.4.10 Displaying and Setting the Date and Time....................................................................87
3.4.4.11 Changing the Display Update Rate...............................................................................88
3.5 Basic Measurement Examples...................................................................................88
3.5.1 Measuring a Sinusoidal Signal......................................................................................89
3.5.1.1 Measuring the Level and Frequency Using Markers.....................................................89
3.5.1.2 Measuring the Signal Frequency Using the Frequency Counter.................................. 91
3.5.2 Measuring Harmonics of Sinusoidal Signals.................................................................93
3.5.3 Measuring Signal Spectra with Multiple Signals........................................................... 96
3.5.3.1 Separating Signals by Selecting the Resolution Bandwidth..........................................96
5User Manual 1175.7445.02 ─ 08
Page 9
R&S®ESRP
3.5.3.2 Measuring the Modulation Depth of an AM-Modulated Carrier (Span > 0).................100
3.5.3.3 Measuring AM-Modulated Signals.............................................................................. 101
3.5.4.1 Measuring the Power Characteristic of Burst Signals................................................. 103
3.5.4.2 Measuring the Signal-to-Noise Ratio of Burst Signals................................................ 107
3.5.4.3 Measuring FM-Modulated Signals...............................................................................110
3.5.5.1 Storing an Instrument Configuration (without Traces).................................................114
3.5.5.2 Storing Traces............................................................................................................. 115
3.5.5.3 Loading an Instrument Configuration (with Traces).....................................................115
3.5.5.4 Configuring Automatic Loading................................................................................... 115
Contents
3.5.4 Measurements in Zero Span.......................................................................................103
3.5.5 Storing and Loading Instrument Settings.................................................................... 113
4 Measurement Modes..........................................................................117
4.1 Receiver Mode........................................................................................................... 117
4.2 Spectrum Mode......................................................................................................... 117
4.3 I/Q Analyzer Mode..................................................................................................... 118
4.4 Measurement Mode Root Menus (HOME Key)....................................................... 118
5 Receiver Mode....................................................................................119
5.1 Measurements and Result Displays........................................................................ 119
5.1.1 Bargraph Measurement...............................................................................................119
5.1.2 IF Spectrum Analysis.................................................................................................. 120
5.1.3 Scans.......................................................................................................................... 121
5.1.3.1 Stepped Scans in the Frequency Domain...................................................................122
5.1.3.2 Time Domain Scans in the Frequency Domain...........................................................123
5.1.3.3 The Scan Table........................................................................................................... 123
5.1.4 Peak List and Data Reduction.....................................................................................124
5.1.5 Final Measurement..................................................................................................... 126
5.1.6 Spectrogram................................................................................................................127
5.1.6.1 How a Spectrogram Works......................................................................................... 127
5.1.6.2 Color Map....................................................................................................................128
5.1.7 Measurement Control..................................................................................................132
5.1.7.1 Running Scans and Measurements............................................................................ 132
5.1.7.2 Selecting the Result Display....................................................................................... 132
5.1.7.3 Bargraph Control.........................................................................................................133
6User Manual 1175.7445.02 ─ 08
Page 10
R&S®ESRP
5.1.7.4 Scan Control............................................................................................................... 134
5.1.7.5 Final Measurement Control.........................................................................................136
5.1.7.6 Measurement Settings................................................................................................ 138
5.1.7.7 Spectrogram Configuration......................................................................................... 140
Contents
5.2 Measurement Basics................................................................................................ 141
5.2.1 Measurement Bandwidth............................................................................................ 142
5.2.2 Detectors.....................................................................................................................143
5.2.3 Trace Modes............................................................................................................... 147
5.2.4 AF Demodulation........................................................................................................ 148
5.2.5 V-Networks Control (LISN)..........................................................................................149
5.2.6 Transducers................................................................................................................ 150
5.2.7 Preamplifier................................................................................................................. 151
5.2.8 Exported Peak List...................................................................................................... 152
5.2.9 Formats for Returned Values: ASCII Format and Binary Format................................ 153
5.3 Common Measurement Settings............................................................................. 154
5.3.1 Defining the Frequency and Span...............................................................................155
5.3.2 Configuring the Level Display and the RF Input..........................................................157
5.3.3 Selecting the Bandwidth..............................................................................................160
5.3.4 Configuring the Scan...................................................................................................161
5.3.5 Configuring the Trigger ...............................................................................................162
5.3.6 Controlling Inputs and Outputs....................................................................................163
5.3.7 Test Automation.......................................................................................................... 163
5.3.7.1 Overview .................................................................................................................... 164
5.3.7.2 Scan Table.................................................................................................................. 165
5.3.7.3 Peak Search................................................................................................................167
5.3.7.4 Peak Lists....................................................................................................................169
5.3.7.5 Trace / Final Meas.......................................................................................................171
5.3.7.6 LISN Settings.............................................................................................................. 172
5.4 Common Analysis Functions...................................................................................174
5.4.1 Trace Configuration.....................................................................................................174
5.4.2 Markers....................................................................................................................... 176
5.4.2.1 Controlling Markers..................................................................................................... 176
5.4.2.2 Positioning Markers.....................................................................................................180
7User Manual 1175.7445.02 ─ 08
Page 11
R&S®ESRP
5.4.2.3 Markers in Spectrograms............................................................................................ 183
5.4.3.1 Softkeys of the Lines Menu.........................................................................................185
5.4.3.2 Display Lines...............................................................................................................189
5.4.3.3 Limit Lines (Frequency/Time Lines)............................................................................ 190
5.4.3.4 Working with Lines...................................................................................................... 191
5.4.3.5 Selecting a Limit Line.................................................................................................. 191
5.4.3.6 Creating a New Limit Line........................................................................................... 192
5.4.3.7 Editing an Existing Limit Line...................................................................................... 195
5.4.3.8 Creating a New Limit Line Based upon an Existing Limit Line....................................195
5.4.3.9 Activating/Deactivating a Limit Line............................................................................ 196
Contents
5.4.3 (Limit) Lines.................................................................................................................184
6 Spectrum Measurements.................................................................. 197
6.1 Measurements........................................................................................................... 197
6.1.1 Power Measurements – MEAS Key............................................................................197
6.1.1.1 Softkeys of the Power Measurement Menu................................................................ 198
6.1.1.2 Measuring Channel Power and Adjacent-Channel Power.......................................... 201
6.1.1.3 Measuring the Carrier-to-Noise Ratio......................................................................... 225
6.1.1.4 Measuring the Occupied Bandwidth........................................................................... 228
6.1.1.5 Measuring with Spectrum Emission Masks.................................................................232
6.1.1.6 Measuring Spurious Emissions...................................................................................259
6.1.1.7 Measuring the Power in Zero Span.............................................................................270
6.1.1.8 Performing EMI Measurements.................................................................................. 273
6.1.1.9 Calculating Signal Amplitude Statistics....................................................................... 282
6.1.1.10 Measuring the Third Order Intercept Point (TOI).........................................................301
6.1.1.11 Measuring the AM Modulation Depth..........................................................................307
6.1.1.12 Measuring Harmonic Distortion...................................................................................308
6.1.2 Measurement Configuration – MEAS CONFIG Key................................................... 312
6.1.3 Performing Measurements – RUN SINGLE/RUN CONT Keys...................................312
6.2 Configuration.............................................................................................................313
6.2.1 Initializing the Configuration – PRESET Key.............................................................. 313
6.2.1.1 Presetting the Instrument............................................................................................ 313
6.2.1.2 Initial Configuration..................................................................................................... 314
6.2.2 Selecting the Frequency and Span – FREQ Key........................................................315
8User Manual 1175.7445.02 ─ 08
Page 12
R&S®ESRP
6.2.2.1 Softkeys of the Frequency Menu................................................................................ 315
6.2.2.2 Specifying the Frequency Axis by the Start and Stop Frequency............................... 319
6.2.2.3 Specifying the Frequency Axis by the Center Frequency and the Span.....................319
6.2.2.4 Specifying the Step Size for the Arrow Keys and the Rotary Knob.............................319
6.2.2.5 Modifying the Frequency Axis by an Offset.................................................................320
6.2.2.6 Tracking Signals (Span > 0)........................................................................................320
6.2.3.1 Softkeys of the Span Menu......................................................................................... 321
6.2.3.2 Specifying the Span (Alternatives).............................................................................. 321
6.2.4.1 Softkeys of the Amplitude Menu................................................................................. 322
6.2.4.2 Specifying the Amplitude.............................................................................................327
Contents
6.2.3 Setting the Frequency Span – SPAN Key...................................................................320
6.2.4 Setting the Level Display and Configuring the RF Input – AMPT Key........................ 322
6.2.5 Defining Automatic Settings – AUTO SET Key...........................................................327
6.2.5.1 Softkeys of the Auto Set Menu....................................................................................327
6.2.6 Setting the Bandwidths and Sweep Time – BW Key...................................................331
6.2.6.1 Softkeys of the Bandwidth Menu.................................................................................331
6.2.6.2 Specifying the Bandwidth............................................................................................337
6.2.6.3 Selecting the Appropriate Filter Type..........................................................................337
6.2.6.4 List of Available RRC and Channel Filters.................................................................. 338
6.2.7 Configuring the Sweep Mode – SWEEP Key..............................................................340
6.2.7.1 Softkeys of the Sweep Menu...................................................................................... 340
6.2.7.2 Specifying the Sweep Settings....................................................................................345
6.2.8 Triggering the Sweep – TRIG Key.............................................................................. 345
6.2.8.1 Softkeys of the Trigger Menu...................................................................................... 345
6.2.8.2 Specifying the Trigger Settings................................................................................... 352
6.2.8.3 Using Gated Sweep Operation................................................................................... 352
6.2.9 Input/Output Configuration – INPUT/OUTPUT Key.................................................... 354
6.2.9.1 Softkeys of the Input/Output Menu..............................................................................354
6.2.9.2 Using Active Probes for Input......................................................................................356
6.3 Analysis..................................................................................................................... 358
6.3.1 Trace Configuration.....................................................................................................358
6.3.1.1 Softkeys of the Trace Menu........................................................................................ 359
6.3.1.2 Configuring Traces......................................................................................................366
9User Manual 1175.7445.02 ─ 08
Page 13
R&S®ESRP
6.3.1.3 Specifying the Trace Settings......................................................................................368
6.3.1.4 Description of the Averaging Method.......................................................................... 368
6.3.1.5 Detector Overview.......................................................................................................370
6.3.1.6 ASCII File Export Format............................................................................................ 370
6.3.2.1 Working with Spectrograms........................................................................................ 373
6.3.2.2 Softkeys of the Spectrogram Menu.............................................................................376
6.3.3.1 Controlling Markers..................................................................................................... 377
6.3.3.2 Positioning Markers (MKR➙ Key)...............................................................................382
6.3.3.3 Performing Peak Searches with Markers – PEAK SEARCH Key............................... 386
6.3.3.4 Measuring with Markers (MKR FUNC Key)................................................................ 387
Contents
6.3.2 Spectrogram................................................................................................................373
6.3.3 Markers....................................................................................................................... 377
6.3.4 Lines............................................................................................................................400
6.4 Advanced Measurement Examples......................................................................... 401
6.4.1 Test Setup................................................................................................................... 401
6.4.2 Measurement of Harmonics........................................................................................ 402
6.4.3 Measuring the Spectra of Complex Signals................................................................ 404
6.4.3.1 Separating Signals by Selecting an Appropriate Resolution Bandwidth..................... 404
6.4.3.2 Intermodulation Measurements...................................................................................405
6.4.4 Measuring Signals in the Vicinity of Noise.................................................................. 407
6.4.4.1 Measurement Example – Measuring Level at Low S/N Ratios................................... 408
6.4.5 Noise Measurements.................................................................................................. 412
6.4.5.1 Measuring Noise Power Density................................................................................. 413
6.4.5.2 Measurement of Noise Power within a Transmission Channel...................................415
6.4.5.3 Measuring Phase Noise.............................................................................................. 417
6.4.6 Measurements on Modulated Signals.........................................................................419
6.4.6.1 Measuring Channel Power and Adjacent Channel Power.......................................... 419
6.4.6.2 Amplitude Distribution Measurements........................................................................ 426
7 I/Q Analyzer........................................................................................ 429
7.1 Softkeys and Parameters of the I/Q Analyzer Menu.............................................. 430
7.2 Softkeys of the Amplitude Menu in I/Q Analyzer Mode......................................... 435
7.3 Softkeys of the Marker To Menu in I/Q Analyzer Mode..........................................440
7.4 Softkeys of the Trigger Menu in I/Q Analyzer Mode.............................................. 440
10User Manual 1175.7445.02 ─ 08
Page 14
R&S®ESRP
Contents
7.5 Working with I/Q Data............................................................................................... 444
7.5.1 Sample Rate and Maximum Usable Bandwidth (RF Input).........................................445
8 Tracking Generator............................................................................447
8.1 Softkeys of the Tracking Generator Menu..............................................................447
8.2 Connecting External Tracking Generators............................................................. 452
8.2.1 Overview of Generators Supported by the R&S ESRP...............................................453
8.3 Configuring Tracking Generators............................................................................456
8.3.1 Internal Tracking Generator........................................................................................ 456
8.3.2 External Tracking Generator....................................................................................... 458
8.4 Tracking Generator Functions.................................................................................463
8.4.1 Calibration mechanism................................................................................................463
8.4.2 Calibrating for transmission and reflection measurement........................................... 464
8.4.3 Transmission measurement........................................................................................465
8.4.4 Reflection measurement............................................................................................. 465
8.4.5 Normalization.............................................................................................................. 465
8.4.6 Modulation (internal Tracking Generator only)............................................................469
8.5 Displayed Information and Errors........................................................................... 471
9 System Configuration........................................................................473
9.1 Manual Operation – Local Menu.............................................................................. 473
9.2 User-Defined Menu – USER key.............................................................................. 474
9.3 Instrument Setup and Interface Configuration – SETUP Key............................... 475
9.3.1 Softkeys of the Setup Menu........................................................................................ 476
10 Data Management and Documentation............................................500
10.1 Saving and Recalling Settings Files – SAVE/RCL Key.......................................... 500
10.1.1 Softkeys of the SAVE/RCL Menu................................................................................501
10.1.2 File Selection Dialog Boxes........................................................................................ 507
10.1.3 Importing and Exporting I/Q Data................................................................................509
10.1.3.1 iq-tar File Format Specification................................................................................... 509
10.2 Measurement Documentation – PRINT Key........................................................... 514
10.3 Working with Test Reports....................................................................................... 517
10.3.1 Designing a Test Report Template.............................................................................. 517
10.3.2 Creating a Test Report................................................................................................ 520
11User Manual 1175.7445.02 ─ 08
Page 15
R&S®ESRP
11.1.1 Remote Control Interfaces and Protocols................................................................... 524
11.1.1.1 VISA Libraries............................................................................................................. 526
11.1.1.2 Messages....................................................................................................................526
11.1.1.3 LAN Interface.............................................................................................................. 527
11.1.1.4 GPIB Interface (IEC 625/IEEE 418 Bus Interface)......................................................530
11.1.2 Starting a Remote Control Session.............................................................................534
11.1.3 Returning to Manual Operation................................................................................... 535
11.1.4 SCPI Command Structure...........................................................................................535
11.1.4.1 Syntax for Common Commands................................................................................. 535
11.1.4.2 Syntax for Device-Specific Commands.......................................................................536
11.1.4.3 SCPI Parameters........................................................................................................ 537
Contents
11 Remote Control..................................................................................524
11.1 Remote Control - Basics.......................................................................................... 524
11.1.4.4 Overview of Syntax Elements..................................................................................... 540
11.1.4.5 Structure of a Command Line..................................................................................... 541
11.1.4.6 Responses to Queries.................................................................................................542
11.1.5 Command Sequence and Synchronization.................................................................543
11.1.5.1 Preventing Overlapping Execution..............................................................................544
11.1.6 Status Reporting System............................................................................................ 545
11.1.6.1 Hierarchy of Status Registers..................................................................................... 545
11.1.6.2 Structure of a SCPI Status Register............................................................................546
11.1.6.3 Contents of the Status Register.................................................................................. 548
11.1.6.4 Application of the Status Reporting System................................................................560
11.1.6.5 Reset Values of the Status Reporting System............................................................ 562
11.1.7 General Programming Recommendations..................................................................563
11.1.8 The IECWIN Tool........................................................................................................ 563
11.2 Controlling the R&S ESRP Remotely......................................................................565
11.2.1 Operation with Windows Remote Desktop .................................................................565
11.2.1.1 Configuring the R&S ESRP for Remote Operation..................................................... 566
11.2.1.2 Configuring the Controller........................................................................................... 567
11.2.1.3 Starting and Terminating Remote Operation...............................................................569
11.2.1.4 Deactivating the R&S ESRP via Remote Operation................................................... 571
11.2.2 Operation with a VNC Client....................................................................................... 571
12User Manual 1175.7445.02 ─ 08
Page 16
R&S®ESRP
11.2.3 Brief Introduction to Remote Control...........................................................................572
11.2.3.1 Basic Steps in Remote Control Programming.............................................................572
11.2.3.2 Detailed Programming Examples................................................................................579
11.2.4 Configuring the GPIB Interface................................................................................... 592
11.2.5 Setting Up a Network (LAN) Connection.....................................................................592
11.2.5.1 Connecting the Instrument to the Network..................................................................593
11.2.5.2 Assigning the IP Address............................................................................................ 594
11.2.5.3 Using Computer Names..............................................................................................597
11.2.5.4 Changing the Windows Firewall Settings....................................................................598
11.2.6 How to Configure the LAN Using the LXI Web Browser Interface.............................. 598
11.2.6.1 LAN Configuration.......................................................................................................599
11.2.7 Configuring the Network..............................................................................................600
11.2.7.1 Operating the Instrument Without a Network.............................................................. 601
Contents
11.2.7.2 Creating Users............................................................................................................ 601
11.2.7.3 Changing the User Password..................................................................................... 602
11.2.7.4 Mapping Network Drives............................................................................................. 602
11.2.7.5 Sharing Directories (only with Microsoft Networks).....................................................604
11.3 Selecting the Operating Mode................................................................................. 604
11.4 Remote Commands in Receiver Mode....................................................................605
11.4.1 Measurements and Result Displays............................................................................606
11.4.1.1 Display Configuration.................................................................................................. 606
11.4.1.2 Bargraph Control.........................................................................................................606
11.4.1.3 Scan Control............................................................................................................... 608
11.4.1.4 Final Measurements and Automated Test Sequence Control.....................................610
11.4.1.5 Trace Data and Result Query......................................................................................612
11.4.1.6 Demodulating Analog Signals..................................................................................... 616
11.4.1.7 Spectrogram Control................................................................................................... 617
11.4.2 Defining the Frequency............................................................................................... 633
11.4.3 Configuring the Vertical Axis....................................................................................... 636
11.4.4 Selecting the Bandwidth..............................................................................................639
11.4.5 Controlling Inputs and Outputs....................................................................................641
11.4.6 Test Automation.......................................................................................................... 641
11.4.6.1 General Scan Configuration........................................................................................642
13User Manual 1175.7445.02 ─ 08
Page 17
R&S®ESRP
11.4.6.2 Scan Table.................................................................................................................. 643
11.4.6.3 Peak Search................................................................................................................647
11.4.6.4 Peak Lists....................................................................................................................650
11.4.6.5 Trace Configuration.....................................................................................................651
11.4.6.6 LISN Settings.............................................................................................................. 653
11.4.7 Working with Markers..................................................................................................656
11.4.7.1 Configuring Marker Functionality................................................................................ 656
11.4.7.2 Using Markers............................................................................................................. 659
11.4.7.3 Using Delta Markers....................................................................................................665
11.4.8 Limit Lines................................................................................................................... 672
11.4.8.1 Using Display Lines.....................................................................................................672
11.4.8.2 Using Frequency Lines............................................................................................... 673
11.4.8.3 Using Limit Lines.........................................................................................................674
Contents
11.5 Remote Commands in Spectrum Analyzer Mode.................................................. 687
11.5.1 Measurements and Result Displays............................................................................687
11.5.1.1 Controlling Power Measurements............................................................................... 688
11.5.1.2 Measuring Channel Power..........................................................................................695
11.5.1.3 Measuring the Occupied Bandwidth........................................................................... 716
11.5.1.4 Measuring Spurious Emissions...................................................................................717
11.5.1.5 Testing Against a Spectrum Emission Mask............................................................... 727
11.5.1.6 Performing EMI Measurements.................................................................................. 746
11.5.1.7 Measuring the Modulation Depth................................................................................ 752
11.5.1.8 Measuring the Harmonic Distortion.............................................................................754
11.5.1.9 Measuring the Carrier-to-Noise Ratio......................................................................... 758
11.5.1.10 Measuring the Third Order Intercept Point..................................................................758
11.5.1.11 Measuring Statistics....................................................................................................759
11.5.1.12 Measuring in the Time Domain................................................................................... 767
11.5.1.13 Measuring the Pulse Power........................................................................................ 779
11.5.1.14 Performing List Evaluations........................................................................................ 783
11.5.1.15 Probe Configuration.................................................................................................... 788
11.5.2 Configuring Spectrum Measurements.........................................................................790
11.5.2.1 Frequency Settings..................................................................................................... 790
11.5.2.2 Automatic Measurement Configuration.......................................................................795
14User Manual 1175.7445.02 ─ 08
Page 18
R&S®ESRP
11.5.2.3 Bandwidth Settings..................................................................................................... 798
11.5.2.4 Sweep Configuration...................................................................................................801
11.5.2.5 Trigger Configuration...................................................................................................804
11.5.2.6 Vertical Axis Configuration...........................................................................................811
11.5.3 Analyzing Spectrum Measurements........................................................................... 815
11.5.3.1 Trace Configuration.....................................................................................................815
11.5.3.2 Spectrogram................................................................................................................824
11.5.3.3 Limit Lines................................................................................................................... 828
11.5.3.4 Markers....................................................................................................................... 829
11.6.1 Using the I/Q Analyzer................................................................................................ 855
11.6.2 I/Q Gating....................................................................................................................867
Contents
11.6 Remote Commands in I/Q Analyzer Mode..............................................................855
11.7 Remote Commands to Control the Tracking Generator........................................868
11.7.1 Controlling the Internal Tracking Generator................................................................ 868
11.7.2 Controlling the External Tracking Generator...............................................................875
11.8 Common Commands................................................................................................883
11.9 System Configuration...............................................................................................887
11.9.1 General System Configuration.................................................................................... 887
11.9.2 Checking the System Configuration............................................................................893
11.9.3 Coupling Parameters.................................................................................................. 895
11.9.4 Controlling In- and Ouputs.......................................................................................... 899
11.9.5 Configuring the Reference Frequency........................................................................ 902
11.9.6 Calibrating the R&S ESRP..........................................................................................903
11.9.7 Using Service Functions............................................................................................. 906
11.10 Data Management..................................................................................................... 908
11.10.1 Managing Data Files................................................................................................... 908
11.10.2 Saving and Restoring Customized Data..................................................................... 913
11.11 Using Transducers....................................................................................................917
11.12 Documentation..........................................................................................................925
11.13 Working with Test Reports.......................................................................................934
11.13.1 Designing a Test Report Template.............................................................................. 934
11.13.1.1 Selecting the Test Report Contents.............................................................................934
11.13.1.2 Designing the Header of the Test Report.................................................................... 936
15User Manual 1175.7445.02 ─ 08
Page 19
R&S®ESRP
11.13.1.3 Defining the Contents of the Title Page.......................................................................939
11.13.1.4 Managing Templates................................................................................................... 939
11.13.2 Creating a Test Report................................................................................................ 941
11.13.2.1 Configuring and Printing the Test Report.................................................................... 941
11.13.2.2 Adding and Removing Datasets..................................................................................941
11.13.2.3 Selecting Datasets for the Report............................................................................... 943
11.13.3 Deprecated Commands (Test Report)........................................................................ 944
11.14 Display Configuration...............................................................................................944
11.14.1 Controlling Display Elements...................................................................................... 945
11.14.2 Selecting Items to Store and Restore......................................................................... 952
11.15 Network Connection................................................................................................. 955
11.15.1 Configuring Network Connections...............................................................................955
11.15.2 Emulating HP Instruments.......................................................................................... 958
Contents
11.16 Status Register..........................................................................................................962
11.16.1 General Status Register Commands.......................................................................... 962
11.16.2 Reading out the EVENt Part....................................................................................... 963
11.16.3 Reading Out the CONDition Part................................................................................ 963
11.16.4 Controlling the ENABle Part........................................................................................964
11.16.5 Controlling the Negative Transition Part......................................................................964
11.16.6 Controlling the Positive Transition Part....................................................................... 965
11.17 Remote Control – Programming Examples............................................................965
11.17.1 Service Request..........................................................................................................967
11.17.1.1 Initiate Service Request.............................................................................................. 967
11.17.1.2 Waiting for the Arrival of a Service Request................................................................968
11.17.1.3 Waiting Without Blocking the Keyboard and Mouse................................................... 969
11.17.1.4 Service Request Routine............................................................................................ 970
11.17.1.5 Reading Out the Output Buffer....................................................................................971
11.17.1.6 Reading Error Messages............................................................................................ 971
11.17.1.7 Evaluation of SCPI Status Registers...........................................................................972
11.17.1.8 Evaluation of Event Status Register............................................................................973
11.17.2 Using Marker and Delta Marker.................................................................................. 974
11.17.2.1 Shape Factor Measurement (using n dB down)..........................................................974
11.17.2.2 Measuring the Third Order Intercept Point..................................................................975
16User Manual 1175.7445.02 ─ 08
Page 20
R&S®ESRP
11.17.2.3 Measuring the AM Modulation Depth..........................................................................976
11.17.3 Limit Lines and Limit Test............................................................................................976
11.17.4 Measuring the Channel and Adjacent Channel Power............................................... 978
11.17.5 Occupied Bandwidth Measurement............................................................................ 981
11.17.6 Time Domain Power Measurement.............................................................................982
11.17.7 Fast Power Measurement on Power Ramps.............................................................. 983
11.17.7.1 Power Measurement with Multi-Summary Marker...................................................... 983
11.17.7.2 Multi-Burst Power Measurement.................................................................................985
11.17.8 Fast Level Measurement Using Frequency Lists........................................................ 986
11.17.9 Level Correction of Transducers................................................................................. 988
11.17.10 Measuring the Magnitude and Phase of a Signal....................................................... 989
11.17.11 Reading and Writing Files...........................................................................................991
11.17.11.1 Reading a File from the Instrument.............................................................................991
Contents
11.17.11.2 Creating a File on the Instrument................................................................................992
11.17.12 Spectrum Emission Mask Measurement.....................................................................992
11.17.12.1 Using Predefined Standard Wibro...............................................................................993
11.17.12.2 Defining 5 Ranges with all Parameters....................................................................... 993
11.17.13 Spurious Emissions Measurement..............................................................................996
11.17.14 Averaging I/Q Data......................................................................................................999
11.17.15 Using IQ Gating.........................................................................................................1000
11.17.16 Usage of Four Spectrum Instances...........................................................................1005
11.18 GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E.............. 1007
11.18.1 GPIB Languages.......................................................................................................1008
11.18.2 Command Set of Models 8560E, 8561E, 8562E, 8563E, 8564E, 8565E, 8566A/B,
8568A/B, 8591E, 8594E, 71100C, 71200C, and 71209A......................................... 1009
11.18.3 Special Features of the Syntax Parsing Algorithms for 8566A and 8568A Models.. 1033
11.18.4 Special Behavior of Commands................................................................................1034
11.18.5 Model-Dependent Default Settings........................................................................... 1035
11.18.6 Data Output Formats.................................................................................................1036
11.18.7 Trace Data Output Formats.......................................................................................1036
11.18.8 Trace Data Input Formats......................................................................................... 1036
11.18.9 GPIB Status Reporting..............................................................................................1036
12 Maintenance..................................................................................... 1038
17User Manual 1175.7445.02 ─ 08
Page 21
R&S®ESRP
14.1.1 Changing the Computer Name................................................................................. 1043
14.1.2 Changing the Domain or Workgroup.........................................................................1043
14.1.3 Operating the Instrument Without a Network............................................................ 1044
14.1.4 Creating Users.......................................................................................................... 1045
14.1.5 Changing the User Password................................................................................... 1045
14.1.6 Logging on to the Network........................................................................................ 1045
Contents
12.1 Cleaning................................................................................................................... 1038
12.2 Storing and Packing............................................................................................... 1039
12.3 List of Available Power Cables.............................................................................. 1039
13 Error Messages................................................................................ 1040
14 Appendix: LAN Interface................................................................. 1042
14.1 Configuring the Network........................................................................................ 1042
14.1.7 Automatic Login Function..........................................................................................1046
14.1.8 Mapping Network Drives........................................................................................... 1047
14.1.9 Sharing Directories (only with Microsoft Networks)...................................................1048
14.2 Operation with Windows Remote Desktop ..........................................................1049
14.2.1 Configuring the R&S ESRP for Remote Operation................................................... 1049
14.2.2 Configuring the Controller......................................................................................... 1050
14.3 Operation with a VNC Client.................................................................................. 1053
14.4 Starting and Terminating Remote Operation........................................................1054
14.5 Deactivating the R&S ESRP via Remote Operation.............................................1055
List of Commands............................................................................1057
Index..................................................................................................1074
18User Manual 1175.7445.02 ─ 08
Page 22
R&S®ESRP
Preface
Conventions Used in the Documentation

1 Preface

This chapter provides safety-related information, an overview of the user documenta­tion and the conventions used in the documentation.

1.1 For Your Safety

The R&S ESRP is designated for use in industrial, administrative, and laboratory envi­ronments. Use the R&S ESRP only for its designated purpose. Observe the safety and usage instructions documented in the user manual, as well as operating conditions and performance limits stated in the data sheet.
The product documentation helps you use the R&S ESRP safely and efficiently. Keep the product documentation in a safe place and pass it on to subsequent users.
Safety information is part of the product documentation. It warns you about potential dangers and gives instructions how to prevent personal injury or damage caused by dangerous situations. Safety information is provided as follows:
●
In the "Basic Safety Instructions", safety issues are grouped according to subjects. For example, one subject is electrical safety. The "Basic Safety Instructions" are delivered with the R&S ESRP in different languages in print.
●
Throughout the documentation, safety instructions are provided when you need to take care during setup or operation. Always read the safety instructions carefully. Make sure to comply fully with them. Do not take risks and do not underestimate the potential danger of small details such as a damaged power cable.

1.2 Conventions Used in the Documentation

1.2.1 Typographical Conventions

The following text markers are used throughout this documentation:
Convention Description
"Graphical user interface ele­ments"
[Keys] Key and knob names are enclosed by square brackets.
All names of graphical user interface elements on the screen, such as dialog boxes, menus, options, buttons, and softkeys are enclosed by quotation marks.
File names, commands, program code
Input Input to be entered by the user is displayed in italics.
File names, commands, coding samples and screen output are distin­guished by their font.
19User Manual 1175.7445.02 ─ 08
Page 23
R&S®ESRP

1.2.2 Conventions for Procedure Descriptions

Preface
How to Use the Help System
Convention Description
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
tion marks.
When operating the instrument, several alternative methods may be available to per­form the same task. In this case, the procedure using the touchscreen is described. Any elements that can be activated by touching can also be clicked using an addition­ally connected mouse. The alternative procedure using the keys on the instrument or the on-screen keyboard is only described if it deviates from the standard operating pro­cedures.
The term "select" may refer to any of the described methods, i.e. using a finger on the touchscreen, a mouse pointer in the display, or a key on the instrument or on a key­board.

1.2.3 Notes on Screenshots

When describing the functions of the product, we use sample screenshots. These screenshots are meant to illustrate as many as possible of the provided functions and possible interdependencies between parameters. The shown values may not represent realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options instal­led. Thus, some functions shown in the screenshots may not be available in your par­ticular product configuration.

1.3 How to Use the Help System

Calling context-sensitive and general help
► To display the general help dialog box, press the [HELP] key on the front panel.
The help dialog box "View" tab is displayed. A topic containing information about the current menu or the currently opened dialog box and its function is displayed.
For standard Windows dialog boxes (e.g. File Properties, Print dialog etc.), no context­sensitive help is available.
► If the help is already displayed, press the softkey for which you want to display
help. A topic containing information about the softkey and its function is displayed.
20User Manual 1175.7445.02 ─ 08
Page 24
R&S®ESRP
Preface
How to Use the Help System
If a softkey opens a submenu and you press the softkey a second time, the submenu of the softkey is displayed.
Contents of the help dialog box
The help dialog box contains four tabs:
●
"Contents" - contains a table of help contents
●
"View" - contains a specific help topic
●
"Index" - contains index entries to search for help topics
●
"Zoom" - contains zoom functions for the help display
To change between these tabs, press the tab on the touchscreen.
Navigating in the table of contents
●
To move through the displayed contents entries, use the [UP ARROW] and [DOWN ARROW] keys. Entries that contain further entries are marked with a plus sign.
●
To display a help topic, press the [ENTER] key. The "View" tab with the corre­sponding help topic is displayed.
●
To change to the next tab, press the tab on the touchscreen.
Navigating in the help topics
●
To scroll through a page, use the rotary knob or the [UP ARROW] and [DOWN ARROW] keys.
●
To jump to the linked topic, press the link text on the touchscreen.
Searching for a topic
1. Change to the "Index" tab.
2. Enter the first characters of the topic you are interested in. The entries starting with
these characters are displayed.
3. Change the focus by pressing the [ENTER] key.
4. Select the suitable keyword by using the [UP ARROW] or [DOWN ARROW] keys
or the rotary knob.
5. Press the [ENTER] key to display the help topic.
The "View" tab with the corresponding help topic is displayed.
Changing the zoom
1. Change to the "Zoom" tab.
2. Set the zoom using the rotary knob. Four settings are available: 1-4. The smallest
size is selected by number 1, the largest size is selected by number 4.
21User Manual 1175.7445.02 ─ 08
Page 25
R&S®ESRP
Preface
How to Use the Help System
Closing the help window
► Press the [ESC] key or a function key on the front panel.
22User Manual 1175.7445.02 ─ 08
Page 26
R&S®ESRP
Documentation Overview
Service Manual

2 Documentation Overview

This section provides an overview of the R&S ESRP user documentation. Unless specified otherwise, you find the documents on the R&S ESRP product page at:
www.rohde-schwarz.com/manual/esrp

2.1 Getting Started Manual

Introduces the R&S ESRP and describes how to set up and start working with the product. Includes basic operations, typical measurement examples, and general infor­mation, e.g. safety instructions, etc.
A printed version is delivered with the instrument. A PDF version is available for down­load on the Internet.

2.2 User Manuals and Help

Contains the description of all instrument modes and functions. It also provides an introduction to remote control, a complete description of the remote control commands with programming examples, and information on maintenance, instrument interfaces and error messages. Includes the contents of the getting started manual.
The contents of the user manuals are available as help in the R&S ESRP. The help offers quick, context-sensitive access to the complete information.
All user manuals are also available for download or for immediate display on the Inter­net.

2.3 Service Manual

Describes the performance test for checking the rated specifications, module replace­ment and repair, firmware update, troubleshooting and fault elimination, and contains mechanical drawings and spare part lists.
The service manual is available for download for registered users on the global Rohde & Schwarz information system (GLORIS):
https://gloris.rohde-schwarz.com).
23User Manual 1175.7445.02 ─ 08
Page 27
R&S®ESRP
Documentation Overview
Application Notes, Application Cards, White Papers, etc.

2.4 Instrument Security Procedures

Deals with security issues when working with the R&S ESRP in secure areas. It is available for download on the Internet.

2.5 Basic Safety Instructions

Contains safety instructions, operating conditions and further important information. The printed document is delivered with the instrument.

2.6 Data Sheets and Brochures

The data sheet contains the technical specifications of the R&S ESRP. It also lists the options and their order numbers as well as optional accessories.
The brochure provides an overview of the instrument and deals with the specific char­acteristics.
www.rohde-schwarz.com/brochure-datasheet/esrp

2.7 Release Notes and Open Source Acknowledgment (OSA)

The release notes list new features, improvements and known issues of the current firmware version, and describe the firmware installation.
The open source acknowledgment document provides verbatim license texts of the used open source software.
www.rohde-schwarz.com/firmware/esrp

2.8 Application Notes, Application Cards, White Papers, etc.

These documents deal with special applications or background information on particu­lar topics.
www.rohde-schwarz.com/application/esrp
24User Manual 1175.7445.02 ─ 08
Page 28
R&S®ESRP

3.1.1 Front Panel View

Quick Start
Front and Rear Panel View

3 Quick Start

Note: the following chapters are identical to those in the printed R&S ESRP Quick Start Guide.
● Front and Rear Panel View.....................................................................................25
● Preparing for Use....................................................................................................36
● Firmware Update and Installation of Firmware Options..........................................58
● Basic Operations.....................................................................................................60
● Basic Measurement Examples................................................................................88

3.1 Front and Rear Panel View

The front panel of the R&S ESRP is shown in Figure 3-1. Each element (function keys and connectors) is described in more detail in the subsequent sections.
Figure 3-1: Front panel of the R&S
No. Description See
1 General device functions e.g. Change
mode, Setup, Default Settings, Help.
ESRP
Chapter 3.1.1.1, "Function Keys on the Front Panel",
on page 26
2 USB connector for external devices, e.g.
keyboard, mouse
3 ON/OFF switch Chapter 3.2.1.7, "Switching the Instrument On and Off",
4 Touchscreen; display area for measure-
ment results
Chapter 3.1.1.3, "Connectors on the Front Panel",
on page 30
on page 41
Chapter 3.1.1.2, "Touchscreen Display", on page 29
25User Manual 1175.7445.02 ─ 08
Page 29
R&S®ESRP
Quick Start
Front and Rear Panel View
No. Description See
5 Auxiliary functions to display Windows
Start menu or on-screen keyboard
6 Display options for screen Chapter 3.4.4, "Changing the Display", on page 81
7 Navigation options for screen menu Chapter 3.4.2.6, "Arrow Keys, UNDO/REDO Keys",
8 Measurement control settings, e.g. fre-
quency, levels
9 Marker functions Chapter 3.1.1.1, "Function Keys on the Front Panel",
10 Measurement configuration Chapter 3.1.1.1, "Function Keys on the Front Panel",
11 Measurement start Chapter 3.1.1.1, "Function Keys on the Front Panel",
12 Numeric keyboard, units and data entry
keys
13 Rotary knob Chapter 3.4.2.5, "Rotary Knob", on page 72
14 Arrow keys Chapter 3.4.2.6, "Arrow Keys, UNDO/REDO Keys",
15 Undo/redo functions Chapter 3.4.2.6, "Arrow Keys, UNDO/REDO Keys",
Chapter 3.1.1.1, "Function Keys on the Front Panel",
on page 26
on page 72
Chapter 3.1.1.1, "Function Keys on the Front Panel",
on page 26
on page 26
on page 26
on page 26
Chapter 3.4.2.4, "Keypad", on page 71
on page 72
on page 72
16 AF output with volume control Chapter 3.1.1.4, "Optional Front Panel Connectors",
17 Noise source control Chapter 3.1.1.3, "Connectors on the Front Panel",
18 Supply voltage for measurement acces-
sories
19 Probe power connector (supply voltage
for measurement accessories)
20 Tracking generator output, optional Chapter 3.1.1.4, "Optional Front Panel Connectors",
21 RF input Chapter 3.1.1.3, "Connectors on the Front Panel",
3.1.1.1 Function Keys on the Front Panel
A detailed description of the corresponding menus and the other function keys is provi­ded in chapter 6 "Instrument Functions" of the Operating Manual.
on page 32
on page 30
Chapter 3.1.1.4, "Optional Front Panel Connectors",
on page 32
Chapter 3.1.1.3, "Connectors on the Front Panel",
on page 30
on page 32
on page 30
26User Manual 1175.7445.02 ─ 08
Page 30
R&S®ESRP
Table 3-1: Function keys
Quick Start
Front and Rear Panel View
Turns the instrument on and off.
Restores the default configuration of the R&S ESRP.
Provides functionality to save, restore and manage instrument settings and other files.
Provides functionality for general instrument configuration, for example:
●
to configure the display
●
to set the date and time
●
to establish a LAN connection
Provides functionality to configure printers and hardcopys.
Displays the online help.
Selects the operating mode or firmware application.
Opens the Windows "Start" menu
Turns the on-screen keyboard on and off. Repeatedly pressing the key changes the position of the keyboard (top or bottom of the display).
Selects alphanumeric characters.
Opens a dialog box to turn screen elements on or off.
Switches between maximized and split display of focus area.
Switches focus area between table and diagram.
27User Manual 1175.7445.02 ─ 08
Page 31
R&S®ESRP
Quick Start
Front and Rear Panel View
Allows you to define and use softkeys to load custom configurations.
Opens the root menu of the current application.
FREQ (CHANNEL) Provides functionality to define frequency parameters, for example:
SPAN Provides functionality to configure the frequency span.
AMPT (SCALE) Provides functionality to configure amplitude or level characteristics, for example:
AUTO SET Provides functionality to automatically define various parameters like the level or
BW Provides functionality to define the resolution and video bandwidth.
SWEEP Provides functionality to configure the sweep, for example:
TRACE Provides functionality to configure data acquisition and analyze measured data,
TRIG Provides functionality to configure triggered and gated measurements, for exam-
●
the center or receiver frequency
●
the frequency offset
(CHANNEL is for special applications)
●
the reference level
●
the attenuation
●
the input impedance
●
the scale of the level axis
●
the preamplifier
frequency.
●
the measurement time
●
the number of measurement points
●
the measurement mode (single or continuous measurements)
for example:
●
the trace mode
●
the detector
ple:
MKR Provides functionality to activate and position absolute and relative markers
(markers and delta markers).
PEAK SEARCH Performs a peak search for active markers.
If no marker is active, Marker 1 is activated and the peak search is performed for it.
MKR FUNC Provides additional analysis functions of the measurement markers, for example:
MKR➙ Provides functionality to position and control markers, for example:
●
the frequency counter
●
the noise measurement
●
the phase noise measurement
●
the AM/FM audio demodulator
●
to position the marker on the center frequency
●
to define the marker search area
●
to configure the peak excursion
28User Manual 1175.7445.02 ─ 08
Page 32
R&S®ESRP
Quick Start
Front and Rear Panel View
MEAS Provides the measurement functions, for example:
MEAS CONFIG Provides functionality to configure the measurement.
LINES Provides functionality to control display and limit lines.
INPUT/OUTPUT Provides functionality to configure inputs and outputs.
RUN SINGLE Starts a single measurement.
RUN CONT Starts a continuous measurement.
UNDO Reverts the last operation.
REDO Repeats previously reverted operation.
3.1.1.2 Touchscreen Display
All measurement results are displayed in the screen on the front panel. Additionally, the screen display provides status and setting information and allows you to switch between various measurement tasks. The screen is touch-sensitive, offering an alter­native means of user interaction for quick and easy handling of the device.
●
the bargraph measurement (in Receiver mode)
●
the scan and final measurement (in Receiver mode)
●
the AF demodulation (in Receiver mode)
●
IF analysis (in Receiver mode with option R&S ESRP-K56)
●
the channel power and ACLR measurement (in Spectrum mode)
●
the occupied bandwidth measurement (in Spectrum mode)
●
the Spectrum Emission Mask (SEM) measurement (in spectrum mode)
●
the spurious emission measurement (in spectrum mode)
●
the signal statistics (in spectrum mode)
Risk of touchscreen damage
Inappropriate tools or excessive force can damage the touchscreen. Observe the following instructions when operating the touchscreen:
●
Never touch the screen with ball point pens or other sharp objects, use your fingers instead. As an alternative, you can use a stylus pen with a smooth soft tip.
●
Never apply excessive force to the screen. Touch it gently.
●
Never scratch the screen surface, for example with a finger nail.
●
Never rub the screen surface strongly, for example with a dust cloth. For instructions on cleaning the screen, see Chapter 12.1, "Cleaning", on page 1038.
The Figure 3-2 shows the touchscreen display of the R&S ESRP. The individual ele­ments are described in more detail in Chapter 3.4, "Basic Operations", on page 60.
29User Manual 1175.7445.02 ─ 08
Page 33
R&S®ESRP
Quick Start
Front and Rear Panel View
Figure 3-2: Touchscreen elements
1 = Toolbar with standard application functions, e.g. print, save/open file etc. 2 = Tabs for individual measurement tasks 3 = Channel information bar for current measurement settings 4 = Diagram header with diagram-specific (trace) information 5 = Measurement results area 6 = Diagram footer with diagram-specific information, depending on measurement mode 7 = Error indicator 8 = Error message, if available 9 = Device status 10 = Progress bar for measurement 11 = Date and time display 12 = Softkeys for menu access
3.1.1.3 Connectors on the Front Panel
This section describes the front connectors and interfaces of the R&S ESRP. Optional connectors and interfaces are indicated by the option name in brackets. Most connec­tors on the front panel (except for USB) are located at the bottom right-hand side.
30User Manual 1175.7445.02 ─ 08
Page 34
R&S®ESRP
Quick Start
Front and Rear Panel View
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results. To suppress generated electromagnetic interference (EMI):
●
Use suitable shielded cables of high quality. For example, use double-shielded RF and LAN cables.
●
Always terminate open cable ends.
●
Note the EMC classification in the data sheet.
USB
The front panel provides two female USB connectors to connect devices like an exter­nal keyboard or mouse. You can also connect a memory stick to save and restore instrument settings and measurement data.
NOISE SOURCE CONTROL
The noise source control female connector is used to provide the supply voltage for an external noise source, for example to measure the noise figure and gain of amplifiers and frequency converting DUTs.
Conventional noise sources require a voltage of +28 V in order to be switched on and 0 V to be switched off. The output supports a maximum load of 100 mA.
RF INPUT 50Ω
The R&S ESRP provides an RF input for connection of a device under test (DUT) to the R&S ESRP. The DUT is connected to the RF Input via cable and an approriate connector (for example a male N connector).
The RF Input supports a frequency range from 9 kHz to f
and an attenuation range
max
from 0 dB to 70 dB.
With option R&S R&S ESRP-B29, the minimum frequency is extended to 10 Hz.
Risk of instrument damage
Do not overload the input. For maximum allowed values, see the data sheet. For AC-coupling, a DC input voltage of 50 V must never be exceeded. For DC-cou-
pling, DC voltage must not be applied at the input. In both cases, noncompliance will destroy the input mixers.
When measuring unknown signals, do not use a 0 dB attenuation level. Otherwise, the input mixer may be damaged or destroyed.
PROBE POWER
The R&S ESRP provides two connectors to supply accessories like transducers or probes with power.
31User Manual 1175.7445.02 ─ 08
Page 35
R&S®ESRP
Quick Start
Front and Rear Panel View
The probe power connector on the left supports supply voltages of ±10 V and ground. The maximum permissible current is 200 mA. This probe power connector is suitable, for example, for transducers from Rohde & Schwarz.
The probe power connector on the right supports supply voltages from +15 V to
-12.6 V and ground. The maximum permissible current is 150 mA. This probe power connector is suitable, for example, for high-impedance probes from Agilent.
AF OUTPUT
Headphones equipped with a miniature jack plug can be connected to the AF output female connector. The internal impedance is 10 Ω. The output voltage can be set by using the volume control to the right of the female connector. If a plug is connected, the internal loudspeaker is automatically switched off.
Risk of hearing damage
Before putting on the headphones, make sure that the volume setting is not too high to protect your hearing.
3.1.1.4 Optional Front Panel Connectors
Tracking Generator Output (GEN OUTPUT 50 Ω, Option R&S FSV-B9)
The R&S ESRP is equipped with an optional tracking generator and therefore provides a tracking generator output connector.
The output of the tracking generator is connected to the DUT via a cable equipped with a male N connector. The female connector is available only with the tracking generator option (R&S FSV-B9).
Risk of damaging the tracking generator
To avoid damaging the tracking generator, make sure that the reverse power (i.e. input power caused, for example, by reflections in the test setup) never exceeds 1 W RF power. Do not apply a DC voltage at the output.
For details, refer to the data sheet.
Sensitive DUTs concerning matching
For DUTs with sensitive RF characteristics with regard to matching (VSWR) at the input, insert a 10 dB attenuator between the DUT and the tracking generator.
32User Manual 1175.7445.02 ─ 08
Page 36
R&S®ESRP

3.1.2 Rear Panel View

Quick Start
Front and Rear Panel View
The rear panel of the R&S ESRP is shown in Figure 3-3. Each element is described in more detail in the subsequent sections.
Figure 3-3: R&S ESRP rear panel
1 = LAN 2 = TRIGGER OUTPUT 3 = IF/VIDEO 4 = USB 5 = AUX PORT 6 = EXT TRIGGER / GATE IN 7 = MONITOR (VGA) 8 = REF IN 9 = REF OUT 10 = GPIB interface 11 = AC Power Supply Connection and Main Power Switch with fuse
3.1.2.1 Standard Rear Panel Connectors
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results. To suppress generated electromagnetic interference (EMI):
●
Use suitable shielded cables of high quality. For example, use double-shielded RF and LAN cables.
●
Always terminate open cable ends.
●
Note the EMC classification in the data sheet.
AC Power Supply Connection and Main Power Switch
The AC power supply connector and main power switch are located in a unit on the rear panel of the instrument.
33User Manual 1175.7445.02 ─ 08
Page 37
R&S®ESRP
Quick Start
Front and Rear Panel View
The main power switch works as follows.
●
Position "O": The instrument is disconnected from the AC power supply.
●
Position "1": The instrument is supplied with power and in operation.
For more information see Chapter 3.2.1.7, "Switching the Instrument On and Off", on page 41.
Warm-up time for OCXO
When the instrument is switched on, the OCXO requires an extended warm-up time (see data sheet).
LAN
The LAN interface can be used to connect the R&S ESRP to a local network for remote control, printouts and data transfer. The assignment of the RJ-45 connector supports twisted-pair category 5 UTP/STP cables in a star configuration (UTP stands for unshielded twisted pair, and STP for shielded twisted pair).
MONITOR (VGA)
The female VGA connector is used to connect an external monitor. Instructions on how to connect an external monitor are provided in Chapter 3.2.3, "Connecting an External
Monitor", on page 45.
EXT TRIGGER / GATE IN
The female connector for external trigger/gate input is used to control the measure­ment by means of an external signal. The voltage levels can range from 0.5 to 3.5 V. The default value is 1.4 V. The typical input impedance is 10 kΩ.
REF IN
As a reference signal, you can either use the internal reference, or connect an external one. The setup menu is used to switch between the internal and an external reference. The REF IN female connector is used as an input for a 1-20 MHz reference signal. The required input level is 0-10 dBm.
REF OUT
This connector can be used to provide an external reference signal (e.g. the OCXO) to other devices that are connected to this instrument. The REF OUT female connector can output a 10 MHz reference signal with an output level of 0 dBm.
GPIB Interface
The GPIB interface is in compliance with IEEE488 and SCPI. A computer for remote control can be connected via this interface. To set up the connection, a shielded cable is recommended.
For more information refer to the User Manual, chapter 7 "Remote Control Basics".
34User Manual 1175.7445.02 ─ 08
Page 38
R&S®ESRP
Quick Start
Front and Rear Panel View
TRIGGER OUTPUT
The female BNC connector can be used to provide a signal to another device. The sig­nal is TTL compatible (0 V / 5 V).
You can control the trigger output with the functionality provided in the "In-/Output" menu ([INPUT/OUTPUT] key).
IF/VIDEO
The female BNC connector can be used for various outputs:
●
Intermediate frequency (IF) output of 32 MHz
●
Video output (1 V)
You can select between IF and video output with the functionality provided in the "In-/ Output" menu ([INPUT/OUTPUT] key).
USB
The rear panel provides two female USB connectors to connect devices like an exter­nal keyboard or mouse. You can also connect a memory stick to save and restore instrument settings and measurement data.
AUX PORT
The 9 pole SUB-D male connector provides control signals for controlling external devi­ces. The voltage levels are of the TTL type (5 V).
Pin Signal Description
1 +5 V / max. 250 mA Supply voltage for external circuits
2 I/O Control Phase N
3 I/O Controls the 150 kHz highpass filter
4 I/O Controls Phase L3
5 I/O not used
6 I/O Controls Phase L1
7 I/O Controls Phase L2
8 GND Ground
9 READY FOR TRIGGER Signal indicating that the instrument is ready to
receive a trigger signal (Low active = 0 V)
Short-circuit hazard
Always observe the designated pin assignment. A short-circuit can damage the port.
35User Manual 1175.7445.02 ─ 08
Page 39
R&S®ESRP
3.1.2.2 Optional Rear Panel Connectors
Quick Start
Preparing for Use
OCXO option (R&S FSV-B4)
This option generates a very precise 10 MHz reference signal. If installed, this signal is used as an internal reference. It can also be used to synchronize other connected devi­ces via the REF OUT connector.
Warm-up time for OCXO
When the instrument is switched on, the OCXO requires an extended warm-up time (see data sheet).

3.2 Preparing for Use

3.2.1 Putting into Operation

This section describes the basic steps to be taken when setting up the R&S ESRP for the first time.
Risk of injury due to disregarding safety information
Observe the information on appropriate operating conditions provided in the data sheet to prevent personal injury or damage to the instrument. Read and observe the basic safety instructions provided with the instrument, in addition to the safety instructions in the following sections. In particular:
●
Do not open the instrument casing.
Risk of instrument damage due to inappropriate operating conditions
Specific operating conditions are required to ensure accurate measurements and to avoid damage to the instrument. Observe the information on appropriate operating conditions provided in the basic safety instructions and the instrument's data sheet.
36User Manual 1175.7445.02 ─ 08
Page 40
R&S®ESRP
Quick Start
Preparing for Use
Risk of instrument damage due to inappropriate operating conditions
An unsuitable operating site or test setup can damage the instrument and connected devices. Before switching on the instrument, observe the information on appropriate operating conditions provided in the data sheet. In particular, ensure the following:
●
All fan openings are unobstructed and the airflow perforations are unimpeded. The minimum distance from the wall is 10 cm.
●
The instrument is dry and shows no sign of condensation.
●
The instrument is positioned as described in the following sections.
●
The ambient temperature does not exceed the range specified in the data sheet.
●
Signal levels at the input connectors are all within the specified ranges.
●
Signal outputs are connected correctly and are not overloaded.
Instrument damage caused by electrostatic discharge
Electrostatic discharge (ESD) can damage the electronic components of the instrument and the device under test (DUT). Electrostatic discharge is most likely to occur when you connect or disconnect a DUT or test fixture to the instrument's test ports. To pre­vent electrostatic discharge, use a wrist strap and cord and connect yourself to the ground, or use a conductive floor mat and heel strap combination.
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results. To suppress generated electromagnetic interference (EMI):
●
Use suitable shielded cables of high quality. For example, use double-shielded RF and LAN cables.
●
Always terminate open cable ends.
●
Note the EMC classification in the data sheet.
3.2.1.1 Unpacking and Checking the Instrument
To remove the instrument from its packaging and check the equipment for complete­ness, proceed as follows:
1. Pull off the polyethylene protection pads from the instrument's rear feet.
2. Carefully remove the pads from the instrument handles at the front.
3. Pull off the corrugated cardboard cover that protects the rear of the instrument.
37User Manual 1175.7445.02 ─ 08
Page 41
R&S®ESRP
3.2.1.2 Accessory List
Quick Start
Preparing for Use
4. Carefully unthread the corrugated cardboard cover at the front that protects the
instrument handles and remove it.
5. Check the equipment for completeness using the delivery note and the accessory
lists for the various items.
6. Check the instrument for any damage. If there is damage, immediately contact the
carrier who delivered the instrument. Make sure not to discard the box and packing material.
Packing material
Retain the original packing material. If the instrument needs to be transported or ship­ped later, you can use the material to protect the control elements and connectors.
The instrument comes with the following accessories:
●
Power cable
●
Quick Start Guide
3.2.1.3 Placing or Mounting the Instrument
The R&S ESRP is designed for use under laboratory conditions, either on a bench top or in a rack.
Bench Top Operation
If the R&S ESRP is operated on a bench top, the surface should be flat. The instru­ment can be used in horizontal position, standing on its feet, or with the support feet on the bottom extended.
38User Manual 1175.7445.02 ─ 08
Page 42
R&S®ESRP
Quick Start
Preparing for Use
Risk of injury if feet are folded out
The feet can fold in if they are not folded out completely or if the instrument is shifted. Collapsing feet can cause injury or damage the instrument.
●
Fold the feet completely in or out to ensure stability of the instrument. Never shift the instrument when the feet are folded out.
●
When the feet are folded out, do not work under the instrument or place anything underneath.
●
The feet can break if they are overloaded. The overall load on the folded-out feet must not exceed 500 N.
Risk of injury when stacking instruments
A stack of instruments can tilt over and cause injury if not stacked correctly. Further­more, the instruments at the bottom of the stack can be damaged due to the load imposed by the instruments on top.
Observe the following instructions when stacking instruments:
●
Never stack more than three instruments. If you need to stack more than three instruments, install them in a rack.
●
The overall load imposed on the lowest instrument must not exceed 500 N.
●
It is best if all instruments have the same dimensions (width and length). If you need to stack smaller instruments on the top, the overall load imposed on the lowest instrument must not exceed 250 N.
●
If the instruments have foldable feet, fold them in completely.
39User Manual 1175.7445.02 ─ 08
Page 43
R&S®ESRP
3.2.1.4 Connecting the AC Power
Quick Start
Preparing for Use
Rackmounting
The R&S ESRP can be installed in a rack using a rack adapter kit (for the order no., see data sheet). The installation instructions are part of the adapter kit.
Risk of instrument damage due to insufficient airflow in a rack
If the instrument is run with insufficient airflow for a longer period, the instrument over­heats, which can disturb the operation and even cause damage.
Make sure that all fan openings are unobstructed, that the airflow perforations are unimpeded, and that the minimum distance from the wall is 10 cm.
The R&S ESRP is equipped with an AC power supply connector. The R&S ESRP can be used with different AC power voltages and adapts itself automatically to it. Refer to the datasheet for the requirements of voltage and frequency. The AC power connector is located on the rear panel of the instrument.
► Connect the R&S ESRP to the AC power supply using the supplied power cable.
Since the instrument is assembled in line with the specifications for safety class EN61010, it may only be connected to an outlet that has a ground contact.
3.2.1.5 Changing the AC Supply Fuse
Only fuses of the type IEC 60 127-T3.15H/250 V should be used. Those fuses are used for all of the specified nominal AC supply voltages.
Changing the AC supply fuses:
1. Disconnect the power cable.
2. Open the flap covering the voltage selector using a small screwdriver (or similar).
3. Remove the fuseholder. Remove both fuses and install the new ones. Reinsert the
fuseholder.
4. Close the flap.
3.2.1.6 Using an Optional DC Power Supply
When only DC power is available, for example from a battery or in a vehicle, an optional DC power supply adapter (R&S FSV-B30) can be connected to the R&S ESRP to operate the instrument with a DC voltage of 10 V to 28 V.
40User Manual 1175.7445.02 ─ 08
Page 44
R&S®ESRP
Quick Start
Preparing for Use
For installation instructions see the option's installation guide.
Shock hazard due to power supply
If you use external power supplies to supply the equipment with DC safety extra low voltage (SELV), make sure the requirements for reinforced or double insulation are met, according to DIN/EN/IEC 61010 (UL61010, CAN CSA C22.2 No. 61010) or DIN/EN/IEC 60950 (UL60950, CAN CSA C22.2 No. 60950). Otherwise you may be injured due to electrical shock.
Before switching on the R&S ESRP, switch on the DC power supply:
Switching the DC power supply on
1. Connect the R&S ESRP DC power supply device to the DC power source (e.g. bat-
tery pack or vehicle) as described in the option's installation guide.
2. Set the switch on the DC power supply to "I". A green LED indicates that the DC
power supply is ready for operation.
3. In case of overvoltage or undervoltage, the DC power supply switches off automati-
cally. This state is indicated by means of a red LED.
4. Set the power switch on the rear panel to "I".
5. Press the [ON/OFF] key on the front panel. A green LED above the [ON/OFF] key
indicates that the instrument is ready for operation.
Switching the DC power supply off
1. Press the [ON/OFF] key on the front panel of the R&S ESRP and wait until the
instrument has shut down.
2. Switch off the power switch on the rear panel of the R&S ESRP.
3. Switch off the DC power supply.
3.2.1.7 Switching the Instrument On and Off
Switching the instrument on
If an optional DC power supply (R&S FSV-B30) is used, you must switch on these devices first; see Chapter 3.2.1.6, "Using an Optional DC Power Supply", on page 40.
1. Press the AC power switch on the rear panel to position "I".
The instrument is supplied with AC power.
2. Press the [ON/OFF] key on the front panel.
41User Manual 1175.7445.02 ─ 08
Page 45
R&S®ESRP
Quick Start
Preparing for Use
After booting, the instrument is ready for operation. A green LED above the [ON/ OFF] key indicates this.
Warm-up time for OCXO
When the instrument is switched on, the OCXO requires an extended warm-up time (see data sheet).
Switching the instrument off
1. Press the [ON/OFF] key on the front panel.
2. Change the AC power switch on the rear panel to position "O", or disconnect the
instrument from the AC power supply.
The R&S ESRP changes into off mode.
Risk of losing data
If you switch off the running instrument using the rear panel switch or by disconnecting the power cord, the instrument loses its current settings. Furthermore, program data can be lost.
Press the ON/STANDBY key first to shut down the application properly.
3.2.1.8 Maintenance
The R&S ESRP does not require regular maintenance. Maintenance is essentially restricted to cleaning the R&S ESRP. It is however advisable to check the nominal data from time to time.
Instrument damage caused by cleaning agents
Cleaning agents contain substances such as solvents (thinners, acetone, etc.), acids, bases, or other substances. Solvents can damage the front panel labeling, plastic parts, or screens, for example.
Never use cleaning agents to clean the outside of the instrument. Use a soft, dry, lint­free dust cloth instead.
The storage temperature range for the R&S ESRP is specified in the data sheet. The instrument must be protected against dust if it is to be stored for a long period.
When transporting or shipping the instrument, it is advisable to use the original packing material (especially the two protective covers for the front and rear panel).
42User Manual 1175.7445.02 ─ 08
Page 46
R&S®ESRP
3.2.1.9 Performing a Self Alignment and a Self Test
Quick Start
Preparing for Use
Operating temperature
Before performing this functional test, make sure that the instrument has reached its operating temperature (for details, refer to the data sheet).
Performing a self alignment
1. Press the [SETUP] key.
2. Press the "Alignment" softkey.
3. Press the "Self Alignment" softkey.
Once the system correction values have been calculated successfully, a message is displayed.
To display the alignment results again later
●
Press the [SETUP] key.
●
Press the "Alignment" softkey.
●
Press the "Show Align Results" softkey.
Performing a self test
The self test does not need to be repeated every time the instrument is switched on. It is only necessary when instrument malfunction is suspected.
1. Press the [SETUP] key.
2. Press the "More" softkey.
3. Press the "Service" softkey.
4. Press the "Selftest" softkey.
Once the instrument modules have been checked successfully, a message is dis­played.
3.2.1.10 Checking the Supplied Options
The instrument may be equipped with both hardware and firmware options. In order to check whether the installed options correspond to the options indicated on the delivery note, proceed as follows.
1. Press the [SETUP] key.
2. Press the "System Info" softkey.
3. Press the "Versions + Options" softkey.
A list with hardware and firmware information is displayed.
43User Manual 1175.7445.02 ─ 08
Page 47
R&S®ESRP

3.2.2 Connecting USB Devices

Quick Start
Preparing for Use
4. Check the availability of the hardware options as indicated in the delivery note.
For an overview of the available options, refer to the datasheet.
The USB interfaces of the R&S ESRP allow you to connect USB devices directly to the instrument. Increase the number of possible connections using USB hubs. Due to the large number of available USB devices, there is almost no limit to the expansions that are possible with the R&S ESRP.
The following list shows various USB devices that can be useful:
●
Memory stick for easy transfer of data to/from a computer (e.g. firmware updates)
●
CD-ROM drives for easy installation of firmware applications
●
Keyboard or mouse to simplify the entry of data, comments, filenames, etc.
●
Printer for printing measurement results
●
Power sensors, e.g. of the NRP Zxy family
Installing USB devices is easy under Windows, because all USB devices are plug&play. After a device is connected to the USB interface, the operating system auto­matically searches for a suitable device driver.
If Windows does not find a suitable driver, it prompts you to specify a directory that contains the driver software. If the driver software is on a CD, connect a USB CD-ROM drive to the instrument before proceeding.
When a USB device is then disconnected from the R&S ESRP, Windows immediately detects the change in hardware configuration and deactivates the corresponding driver.
All USB devices can be connected to or disconnected from the instrument during oper­ation.
Connecting a memory stick or CD-ROM drive
If installation of a memory stick or CD-ROM drive is successful, Windows informs you that the device is ready to use. The device is made available as a new drive and is dis­played in Windows Explorer. The name of the drive depends on the manufacturer.
Connecting a keyboard
The keyboard is detected automatically when it is connected. The default input lan­guage is English – US.
Select "Start > Settings > Time & language > Region & language > Add a language" to configure the keyboard language. To access the Windows operating system, press the Windows key on the external keyboard.
Connecting a mouse
The mouse is detected automatically when it is connected.
44User Manual 1175.7445.02 ─ 08
Page 48
R&S®ESRP
Quick Start
Preparing for Use
Select "Start > Settings > Devices > Mouse & touchpad" to configure the mouse prop­erties. To access the Windows operating system, press the Windows key on the exter­nal keyboard.
Connecting a printer
When printing a file, the instrument checks whether a printer is connected and turned on and whether the appropriate printer driver is installed. If necessary, printer driver installation is initiated. You only have to install a printer driver once.
To install a printer, select "Start > Settings > Devices > Add a printer or scanner". To access the Windows operating system, press the Windows key on the external key­board.
You can load updated and improved driver versions or new drivers from an installation disk, USB memory stick or another external storage medium. If the instrument is inte­grated in a network, you can also install driver data stored in a network directory.
Select "Start > Settings > Devices > Device Manager > Update Device drivers" to install the driver.

3.2.3 Connecting an External Monitor

You can connect an external monitor to the "MONITOR" connector on the instrument's rear panel.
For details on the connector refer to "MONITOR (VGA)" on page 34.
1. Connect the external monitor to the R&S ESRP.
2. Press the [SETUP] key.
3. Press the "General Setup" softkey.
4. Press the "More" softkey.
5. Press the "Configure Monitor" softkey.
The configuration of the connected monitor is determined and displayed in the standard Windows configuration dialog box.
6. In the configuration dialog box, you can switch from the internal monitor (laptop
icon) to the external monitor (monitor icon), or both (double monitor icon). If the external monitor is selected, the R&S ESRP display is disabled. The screen
content (measurement screen) formerly displayed on the R&S ESRP is displayed on the external screen. If you select both monitors, the R&S ESRP screen and the external screen are both active.

3.2.4 R&S ESRP Setup

This section describes how to setup the instrument. It includes the following topics:
45User Manual 1175.7445.02 ─ 08
Page 49
R&S®ESRP
3.2.4.1 Selecting the Frequency Reference Signal
Quick Start
Preparing for Use
● Selecting the Frequency Reference Signal.............................................................46
● Setting the Date and Time...................................................................................... 46
● Aligning the Touchscreen........................................................................................ 47
● Setting the Screen Colors....................................................................................... 48
● Setting the Display Power Save Function...............................................................50
● Selecting and Configuring Printers..........................................................................51
You can switch the reference signal for frequency processing of the R&S ESRP between the internal reference and an external reference signal at 10 MHz as follows:
1. Press the [SETUP] key.
2. Press the "Reference Int/Ext" softkey until it is in the desired state.
External reference signal
It is important that the external reference signal is deactivated when switching from external to internal reference to avoid interactions with the internal reference signal.
Remote commands:
ROSC:SOUR EXT
ROSC:EXT:FREQ 20
3.2.4.2 Setting the Date and Time
You can set the date and time for the internal real time clock as follows:
Opening the Date and Time Properties dialog box
1. Press the [SETUP] key.
2. Press the "General Setup" softkey.
3. Press the "Time + Date" softkey to open the "Date and Time Properties" dialog box.
The "Date & Time" tab is displayed.
Changing the date
1. Press the arrow on the "Month" field to display the list.
2. Select the month from the list.
3. Select the year by clicking on the up and down arrow buttons next to the "Year"
field.
4. Select the day in the calendar display or enter the date via the keyboard.
46User Manual 1175.7445.02 ─ 08
Page 50
R&S®ESRP
Quick Start
Preparing for Use
5. Click "OK".
Remote command
SYST:DATE 2008,10,1
Changing the time
You can change hours, minutes and seconds independently of each other.
1. Select the hour, minute or seconds area of the "Time" field.
2. Enter the required setting via the keyboard or rotary knob.
3. Repeat these steps until the hour, minute and second settings are correct.
4. Click "OK".
Remote command
SYST:TIME 12,30,30
Changing the time zone
1. Select the "Time Zone" tab.
2. Press the arrow on the "Time Zone" field to display the list.
3. Select the required time zone from the list.
4. Optionally, select the "Automatically adjust clock for daylight saving changes"
check box.
5. Click "OK".
3.2.4.3 Aligning the Touchscreen
When the device is delivered, the touchscreen is initially aligned. However, it may become necessary to adjust the alignment later, e.g. after an image update or after exchanging a hard disk. If you notice that touching a specific point on the screen does not achieve the correct response, try adjusting the alignment.
If the touchscreen is so out of order that you cannot navigate properly, connect an external mouse to the R&S ESRP and follow the steps described below to start re­alignment.
1. Press the [SETUP] key.
2. Press the "Alignment" softkey.
3. Press the "Touchscreen Alignment" softkey.
4. Using a finger or any other pointing device, press the 4 markers on the screen.
The touchscreen is aligned according to the executed pointing operations.
47User Manual 1175.7445.02 ─ 08
Page 51
R&S®ESRP
3.2.4.4 Setting the Screen Colors
Quick Start
Preparing for Use
To change the colors of the displayed objects, two default color settings are provided. Alternatively, you can change the color of objects individually using predefined colors or using colors of your own definition.
Some color settings are defined by the selected theme, see Chapter 3.4.4.9, "Selecting
a Theme", on page 87, and cannot be changed individually.
Displaying the Screen Colors Submenu
1. Press the [SETUP] key.
2. Press the "Display Setup" softkey.
3. Press the "More" softkey.
4. Press the "Screen Colors" softkey.
The "Screen Colors" submenu is displayed.
Using the Default Color Settings
To select the default setting for brightness, tint and color saturation of all screen objects:
1. In the "Screen Colors" submenu (see "Displaying the Screen Colors Submenu"
on page 48), press the "Set to Default" softkey. The "Set User Colors to Default" dialog box is displayed.
2. Select one of the default color sets. The color schemes are selected in such a
manner that all screen elements are visible optimally regardless whether viewed from above or below. In the instrument's default setting, "Default Colors 1" is active.
Remote commands:
DISP:CMAP:DEF1 DISP:CMAP:DEF2
Using the Predefined Color Set
1. In the screen colors submenu (see "Displaying the Screen Colors Submenu"
on page 48), press the "Select Screen Color Set" softkey. The "Select Screen Color Set" dialog box is displayed.
2. Select the "User Defined Colors" option.
3. In the screen colors submenu, press the "Select Object" softkey.
The "Screen Color Setup" dialog box is displayed.
48User Manual 1175.7445.02 ─ 08
Page 52
R&S®ESRP
Quick Start
Preparing for Use
4. Press the arrow on the "Selected Object" list and select the object for which you
want to change the color setting.
5. Select the color you want to use for the object. The defined color is displayed in the
"Preview" box.
6. Repeat the steps for all objects that you want to change in color.
7. To change to user-defined colors, press the "Userdefined Colors" softkey. For
details refer to"Defining and Using a User-Defined Color Set" on page 49.
8. Click "OK" to accept the new settings and to close the dialog box.
Remote command:
DISP:CMAP1 ... 41:PDEF <color>
Defining and Using a User-Defined Color Set
1. In the screen colors submenu (see "Displaying the Screen Colors Submenu"
on page 48), press the "Select Screen Color Set" softkey. The "Select Screen Color Set" dialog box is displayed.
2. Select the "User Defined Colors" option.
3. In the "Screen Colors" submenu, press the "Select Object" softkey.
The "Screen Color Setup" dialog box is displayed.
49User Manual 1175.7445.02 ─ 08
Page 53
R&S®ESRP
Quick Start
Preparing for Use
4. Press the arrow on the "Selected Object" list and select the object for which you
want to change the color setting.
5. In the color palette, select the color you want to use for the object, or enter values
for tint, saturation and brightness. The defined color is displayed in the "Preview" box. Note: In the continuous color spectrum ("Tint") red is represented by 0% and blue
by 100%.
6. Repeat the steps for all objects for which you want to change the color.
7. To change to predefined colors, press the "Predefined Colors" softkey. For details
refer to "Using the Predefined Color Set" on page 48.
8. Click "OK" to accept the new settings and to close the dialog box.
Remote command:
DISP:CMAP1 ... 41:HSL <hue>,<sat>,<lum>
3.2.4.5 Setting the Display Power Save Function
The R&S ESRP provides a feature for automatically switching off its screen after a user-defined period of time. The background lighting is disabled if no entries are made from the front panel after the selected response time (key, softkey and rotary knob).
50User Manual 1175.7445.02 ─ 08
Page 54
R&S®ESRP
Quick Start
Preparing for Use
Activating display power save
1. Press the [SETUP] key.
2. Press the "Display Setup" softkey.
3. Press the "More" softkey.
4. Press the "Display Pwr Save On/Off" softkey.
The power save mode is activated ("On" is highlighted), and the dialog box to enter the response time is displayed.
5. Enter the desired response time in minutes and confirm the entry with the [ENTER]
key.
The screen is disabled (turns dark) after the selected period of time.
Deactivating Display Power Save
► In the "Display Setup" submenu, press the "Display Pwr Save On/Off" softkey
again. "Off" is highlighted and the power save mode is switched off.
3.2.4.6 Selecting and Configuring Printers
You can printout your measurement results using a local printer or a network printer. The instrument supports two independent printout settings. This allows you to quickly switch between output to a file and a printer.
Configuring the Printer and the Printout
1. Press the [PRINT] key.
2. Press the "Device Setup" softkey.
The "Hardcopy Setup" dialog box is displayed.
51User Manual 1175.7445.02 ─ 08
Page 55
R&S®ESRP
Quick Start
Preparing for Use
3. To change the tab in order to define the second print setting, press the tab on the
screen.
4. Define the output by selecting the required options.
● To save the hardcopy in an image file, select one of the image types. Depend­ing on the image type, the color depth varies (e.g. 4-bit for BMP, 24-bit for PNG and JPEG).
● To copy the image to the clipboard, select the "Clipboard" option.
● To use a preconfigured network printer, select the "Printer" option.
Note: The "Name", "Print to File" and "Orientation" fields are only available if the "Printer" option is selected. You can perform the following steps only with the "Printer" option selected.
5. In the "Name" field, select the desired printer type.
6. To redirect the output to a postscript file rather than a printer, select the "Print to file" option.
7. In the "Orientation" field, select the desired orientation.
8. Optionally, activate the "Print Date and Time" option to add this information to the printout.
9. Click "OK" to accept the settings and to close the dialog box.
Selecting the Printout Colors
1. Press the [PRINT] key.
52User Manual 1175.7445.02 ─ 08
Page 56
R&S®ESRP
Quick Start
Preparing for Use
2. Press the "Colors" softkey.
3. To print in color, press the "Select Print Color Set" softkey to select the color set. The "Select Print Color Set" dialog box is displayed.
4. Select the color set by using the arrow keys and confirm your selection by pressing the [ENTER] key.
● "Screen Colors (Print)" option: The current screen colors are used for the print-
out. Independently of the current screen colors, the background is printed in white and the grid in black. Remote command: HCOP:CMAP:DEF1
● "Optimized Colors" option: This setting improves the color clarity of the printout.
Trace 1 is printed in blue, trace 2 in black, trace 3 in bright green, trace 4 in pink, trace 5 in sea green, trace 6 in dark red, and the markers in sky blue. The background is printed in white and the grid in black. The other colors corre­spond to the screen colors of the default color setting of the "Setup" menu. Remote command: HCOP:CMAP:DEF2
● "User Defined Colors" option: You define and use your own color set for the
printout. For details how to proceed refer to "Defining and Using a User-
Defined Color Set" on page 49.
Remote command: HCOP:CMAP:DEF3
● "Screen Colors (Hardcopy)" option: The current screen colors without any
changes for a hardcopy. For details on the output format see"Configuring the
Printer and the Printout" on page 51 .
Remote command: HCOP:CMAP:DEF4
5. If you want a black-and-white printout, press the "Color On/Off" softkey to switch off the color. In the black-and-white printout, all background colors are printed out in white and all color lines in black. This allows you to improve contrast on the print­out.
Remote command: HCOP:DEV:COL ON

3.2.5 Windows Operating System

The instrument contains the Windows 7 operating system which has been configured according to the instrument's features and needs. Changes in the system setup are only required when peripherals like keyboard or a printer are installed or if the network configuration does not comply with the default settings. After the R&S ESRP is started, the operating system boots and the instrument firmware is started automatically.
To ensure that the instrument software functions properly, certain rules must be adhered to concerning the operating system.
53User Manual 1175.7445.02 ─ 08
Page 57
R&S®ESRP
3.2.5.1 Virus Protection
Quick Start
Preparing for Use
Risk of rendering instrument unusable
The instrument is equipped with the Windows 7 operating system. You can install addi­tional software on the instrument, however, additional software can impair instrument function. Thus, run only programs that Rohde & Schwarz has tested for compatibility with the instrument software.
The drivers and programs used on the instrument under Windows 7 are adapted to the instrument. Only install update software released by Rohde & Schwarz to modify exist­ing instrument software.
The following program packages have been tested:
●
Symantec Endpoint Security – virus-protection software
●
FileShredder - for reliable deletion of files on the hard disk
Take appropriate steps to protect your instruments from infection. Use strong firewall settings and scan any removable storage device used with a Rohde & Schwarz instru­ment regularly. It is also recommended that you install anti-virus software on the instru­ment. Rohde & Schwarz does NOT recommend running anti-virus software in the background ("on-access" mode) on Windows-based instruments, due to potentially degrading instrument performance. However, Rohde & Schwarz does recommend run­ning it during non-critical hours.
For details and recommendations, see the following Rohde & Schwarz white paper:
●
1EF96: Malware Protection Windows 10
3.2.5.2 Service Packs and Updates
Microsoft regularly creates security updates and other patches to protect Windows­based operating systems. These are released through the Microsoft Update website and associated update server. Instruments using Windows, especially those that con­nect to a network, should be updated regularly.
For details and recommendations, see the Rohde & Schwarz White Paper 1EF96: Mal-
ware Protection Windows 10.
3.2.5.3 Login
Windows 7 requires that users identify themselves by entering a user name and pass­word in a login window. By default, the R&S ESRP provides two user accounts:
●
"Instrument": an administrator account with unrestricted access to the computer/ domain
●
"NormalUser": a standard user account with limited access
54User Manual 1175.7445.02 ─ 08
Page 58
R&S®ESRP
Quick Start
Preparing for Use
Automatic login
For the administrator account, an automatic login function is active by default. If activa­ted, login is carried out automatically for the administrator (with full access) in the back­ground when the R&S ESRP is started, without having to enter a password. This func­tion is active until you explicitly deactivate it or change the password.
For information on how to deactivate or reactivate the automatic login, refer to "Auto-
matic Login Function" on page 55.
Passwords
For all default user accounts, the initial password is 894129. Note that this password is very weak, and it is recommended that you change the password for both users after initial login.
You can change the password in Windows 7 for any user at any time via "Start > Set­tings > Account > SignIn Options > Password > Change".
Changing the password and use of auto-login function
Note that when you change the default passwords, the default auto-login function no longer works! Reactivate it manually as described in "Reactivating the automatic login
function" on page 56.
Automatic Login Function
When shipped, the instrument automatically logs on the default "Instrument" user to Windows 7 using the default password.
Switching users when using the automatic login function
Which user account is used is defined during login. If automatic login is active, the login window is not displayed. However, you can also switch the user account to be used when the automatic login function is active.
1. Press the "Windows" key or the [CTRL + ESC] key combination on your keyboard to access the operating system of the R&S ESRP (see also Chapter 3.2.5.4,
"Accessing the Start Menu", on page 56).
2. Press [CTRL + ALT + DEL], then select "Sign out". The "Login" dialog box is displayed, in which you can enter the different user
account name and password.
Deactivating the automatic login function
To deactivate the automatic login function, perform the following steps:
1. Press the "Windows" key or the [CTRL + ESC] key combination on your keyboard to access the operating system of the R&S ESRP (see also Chapter 3.2.5.4,
"Accessing the Start Menu", on page 56).
2. In the "Start" menu, select "All applications > Windows System > Run". The "Run" dialog box is displayed.
55User Manual 1175.7445.02 ─ 08
Page 59
R&S®ESRP
Quick Start
Preparing for Use
3. Enter the command C:\R_S\INSTR\USER\NO_AUTOLOGIN.REG.
4. Press the [ENTER] key to confirm. This command deactivates the automatic login function. The next time you switch on the instrument, the operating system prompts you to enter your user name and password before it starts the firmware.
Adapting the automatic login function to a new password
If you change the "Instrument" user's password, which is used during automatic login, this function no longer works. Adapt the settings for the command that activates the auto login function first.
1. Open the C:\R_S\INSTR\USER\NO_AUTOLOGIN.REG file in any text editor (e.g. Notepad).
2. In the line "DefaultPassword"="894129", replace the default password (894129) by the new password for automatic login.
3. Save the changes to the file.
Reactivating the automatic login function
1. Press the "Windows" key or the [CTRL + ESC] key combination on your keyboard to access the operating system of the R&S ESRP (see also Chapter 3.2.5.4,
"Accessing the Start Menu", on page 56).
2. In the "Start" menu, select "All applications > Windows System > Run". The "Run" dialog box is displayed.
3. Enter the command C:\R_S\INSTR\USER\AUTOLOGIN.REG.
4. Press the [ENTER] key to confirm. This command reactivates automatic login function. It is active the next time the instrument reboots.
3.2.5.4 Accessing the Start Menu
The Windows "Start" menu provides access to the Windows 7 functionality and instal­led programs.
To open the "Start" menu:
► In Windows 10:
Press the "Windows" key or the [CTRL + ESC] key combination on your (external) keyboard.
The Windows "Start Menu" provides access to the Windows 7 functionality and other installed programs.
►
Select the "Windows" The R&S ESRP opens the "Start Menu".
icon in the toolbar.
56User Manual 1175.7445.02 ─ 08
Page 60
R&S®ESRP
3.2.5.5 Accessing the Windows Taskbar
Quick Start
Preparing for Use
In addition, the taskbar becomes visible. When you connect an external keyboard, you can access the "Start Menu" using the "Windows" key or the [Ctrl] + [Esc] key combination.
All necessary system settings can be defined in the "Start > Settings" menu (for required settings refer to the Windows 7 documentation and to the hardware descrip­tion).
The Windows taskbar also provides quick access to commonly used programs, for example Paint or WordPad. IECWIN, the auxiliary remote control tool provided free of charge and installed by Rohde & Schwarz, is also available from the taskbar.
For details on the IECWIN tool, see the "Network and Remote Control" chapter of the R&S ESRP user manual.
To open the taskbar, press the "Windows" key or the [CTRL + ESC] key combination on your keyboard.

3.2.6 Configuring the GPIB Interface

A GPIB interface is integrated on the rear panel of the instrument. You can set the GPIB address and the ID response string. The GPIB language is set as SCPI by default and cannot be changed for the R&S ESRP.
For details on the GPIB interface see "GPIB Interface" on page 34).
Displaying the GPIB submenu
1. Press the [SETUP] key.
2. Press the "General Setup" softkey.
3. Press the "GPIB" softkey.
The submenu for setting the parameters of the remote control interface is dis­played.
Setting the GPIB address
► In the "GPIB" menu, press the "GPIB Address" softkey.
The edit dialog box for the GPIB address is displayed. The setting range is from 0 to 30. If SCPI is selected as the GPIB language, the default address is 20.
Remote command:
SYST:COMM:GPIB:ADDR 20
57User Manual 1175.7445.02 ─ 08
Page 61
R&S®ESRP
Quick Start
Firmware Update and Installation of Firmware Options
Setting the default ID response string
► In the "GPIB" menu, press the "ID String Factory" softkey to select the default
response to the *IDN? command.
Setting a user-defined ID response string
► In the "GPIB" menu, press the "ID String User" softkey to enter a user-defined
response to the *IDN? command. The maximum length of the output string is 36 characters.

3.3 Firmware Update and Installation of Firmware Options

This chapter describes how to update the firmware and how to activate optional firm­ware packages.
Updating the firmware or installing optional firmware requires administrator rights (see
Chapter 3.2.5.3, "Login", on page 54).

3.3.1 Firmware Update

You can install a new firmware version using one of the following methods:
●
Copying the files to the instrument using USB devices (e.g. a memory stick), GPIB, or LAN
●
Using the "Remote Installation" feature in a LAN network
Copying the files to the instrument
1. Press the [SETUP] key.
2. Press the "More" softkey.
3. Press the "Firmware Update" softkey.
The "Firmware Update" dialog box is displayed.
4. Enter the drive name and directory via the keypad.
Example: The installation files are stored on a memory stick in the Update direc- tory. After you insert the memory stick, it will be detected as drive D:. Therefore, the required path specification is D:\UPDATE.
5. If you install via LAN using the Remote Desktop application, enter the drive name
and directory or press the "Browse" button to locate the directory: a) In the displayed dialog box, select the drive.
b) On the selected drive, select the folder that contains the installation file (*.exe).
58User Manual 1175.7445.02 ─ 08
Page 62
R&S®ESRP
Quick Start
Firmware Update and Installation of Firmware Options
c) Press the "Select" button to confirm your selection and go back to the "Firm-
ware Update" dialog box.
6. Press "Execute"
The installation program will guide you through the installation.
7. After the firmware update, the "UNCAL" status display indicates the necessity of a
self alignment. Perform a self alignment (for details refer to Chapter 3.2.1.9, "Per-
forming a Self Alignment and a Self Test", on page 43).
Remote command: SYST:FIRM:UPD 'D:\FW_UPDATE'
Performing a remote installation from a Windows PC
This method requires a LAN connection from the instrument to a Windows PC (see
Chapter 11.2.5.1, "Connecting the Instrument to the Network", on page 593).
1. Run the Setup.exe file on your PC.
2. Select "Remote Installation" and click the "Next" button.
3. Select the packages you want to install and click the "Next" button.
4. Your LAN subnet is scanned and all found instruments are listed.
Note: The setup procedure communicates with the instrument via LAN, which means the file must pass the firewall. Therefore, add the Setup.exe file to your firewall rules, then restart the scan by clicking "Rescan".
5. Select the instruments you want to update. You can select up to 5 instruments to
update at the same time. Note: All instruments in your LAN structure are included in the list. Make sure you
select the correct instruments! To display further options, click the "Options" button.
6. Start installation by clicking "Install".
7. Confirm that you want to reboot the instrument in order to activate the firmware
update. The instrument restarts automatically.

3.3.2 Activating Firmware Options

Firmware options are enabled by entering license keys as described here.
To activate firmware options
1. Press the [SETUP] key.
2. Press the "More" softkey.
3. Press the "Option Licenses" softkey.
4. Press the "Install Option" softkey.
An edit dialog box is displayed.
5. Enter the option key number using the keypad.
59User Manual 1175.7445.02 ─ 08
Page 63
R&S®ESRP
Quick Start
Basic Operations
6. Press the [ENTER] key.
If validation is successful, the message "option key valid" is displayed. If the valida­tion fails, the option software is not installed.
7. Reboot the instrument.
With time-limited licenses, a message box appears if an option is about to expire. Press the "OK" button to resume using the R&S ESRP. If an option has already expired, a message box appears for you to confirm. In this case, all instrument func­tions are unavailable (including remote control) until the R&S ESRP is rebooted.
Alternatively, you can activate options using an XML file.
To activate firmware options using an XML file
1. Press the [SETUP] key.
2. Press the "More" softkey.
3. Press the "Option Licenses" softkey.
4. Press the "Install Option by XML" softkey.
An edit dialog box is displayed.
5. Enter or browse for the name of an XML file on the instrument that contains the
option key.
6. Press "Select."
If validation is successful, the message "option key valid" is displayed. If the valida­tion fails, the option software is not installed.
7. Reboot the instrument.

3.4 Basic Operations

This chapter gives an overview on how to work with the R&S ESRP. It describes what kind of information is displayed in the diagram area, how to operate the R&S ESRP via the front panel keys and other interaction methods, and how to use the Online Help.
Note the Conventions Used in the Documentation concerning procedure descriptions and terminology described at the beginning of this manual.

3.4.1 Information in the Diagram Area

The following figure shows a measurement diagram during analyzer operation. All dif­ferent information areas are labeled. They are explained in more detail in the following sections.
60User Manual 1175.7445.02 ─ 08
Page 64
R&S®ESRP
Quick Start
Basic Operations
1 = Operation mode tabs 2 = Hardware information 3 = Header of the result display containing trace information 4 = Result display 5 = Footer of the result display containing general measurement settings 6 = Calibration status 7 = Error messages 8 = Measurement status information 9 = Measurement progress bar 10 = Date and time 11 = Softkeys
3.4.1.1 Channel Display
Using the R&S ESRP you can handle several different measurement tasks (channels) at the same time (although they can only be performed asynchronously). For each channel, a separate tab is displayed on the screen. In order to switch from one channel display to another, simply press the corresponding tab.
The icon on the tab label indicates that the displayed trace no longer matches the current instrument settings. This may be the case, for example, if a trace is frozen and the instrument settings are changed. As soon as a new measurement is performed, the icon disappears.
61User Manual 1175.7445.02 ─ 08
Page 65
R&S®ESRP
3.4.1.2 Display of Hardware Settings
Quick Start
Basic Operations
To start a new channel
1. Click the icon in the toolbar at the top of the screen (see also Chapter 3.4.2.1,
"Toolbar", on page 68 on how to display the toolbar).
2. Select the softkey for the required measurement mode.
A new tab is displayed for the new channel.
Information on hardware settings are displayed in the channel bar above the diagram.
Invalid settings
A bullet next to the hardware setting indicates that user-defined settings are used, not automatic settings. A green bullet indicates this setting is valid and the measurement is correct. A red bullet indicates an invalid setting that does not provide useful results.
It is the user's responsibility to remedy such a situation.
Editing settings in the channel bar
All settings that are displayed in the channel bar can easily be edited by touching the setting in the display (with a finger or mouse pointer). The corresponding (edit) dialog box is displayed where you can edit the setting.
In receiver mode, the R&S ESRP shows the following settings:
Demod Active AF demodulation.
Input Type of coupling currently used.
RBW Resolution bandwidth currently used.
Att Current (RF) attenuation level.
MT Measurement time currently used.
Preamp Current preamplification level.
SGL Current scan count.
Step Current frequency step mode.
no label Active transducer factor.
no label Active LISN.
In spectrum mode, the R&S ESRP shows the following settings:
62User Manual 1175.7445.02 ─ 08
Page 66
R&S®ESRP
Quick Start
Basic Operations
Ref Level Reference level
Att RF attenuation level.
Ref Offset Reference level offset
SWT Sweep time that has been set.
If the sweep time does not correspond to the value for automatic coupling, a bullet is displayed in front of the field. The color of the bullet turns red if the sweep time is set below the value for automatic coupling. In addition, the UNCAL flag is shown. In this case, the sweep time must be increased.
RBW Resolution bandwidth that has been set.
If the bandwidth does not correspond to the value for automatic coupling, a green bullet appears in front of the field.
VBW Video bandwidth that has been set.
If the bandwidth does not correspond to the value for automatic coupling, a green bullet is displayed in front of the field.
Compatible Compatible device mode (FSP, FSU, default; default not displayed)
Mode Indicates which sweep mode type is selected:
●
"Auto FFT": automatically selected FFT sweep mode
●
"Auto sweep": automatically selected swept sweep mode
●
"FFT": manually selected FFT sweep mode
●
"Sweep": manually selected swept sweep mode
3.4.1.3 Measurement Settings Information
In addition to the common hardware settings, the channel bar above the diagram also displays information on instrument settings that affect the measurement results even though this is not immediately apparent from the display of the measured values. This information is displayed in gray font and only when applicable for the current measure­ment, as opposed to the common hardware settings that are always displayed.
In Receiver mode, the R&S ESRP shows the following information.
TRG Trigger source
(for details see trigger settings in the "TRIG" menu in the Operating manual)
●
EXT: External
●
VID: Video
75 Ω The input impedance of the instrument is set to 75 Ω.
In Spectrum mode, the following types of information may be displayed, if applicable.
63User Manual 1175.7445.02 ─ 08
Page 67
R&S®ESRP
Quick Start
Basic Operations
Label Description
SGL The sweep is set to single sweep mode.
Sweep Count The current signal count for measurement tasks that involve a specific number of subse-
quent sweeps (see "Sweep Count" setting in "Sweep" menu in the Operating manual)
TRG Trigger source
(for details see trigger settings in the "TRIG" menu in the Operating manual)
●
EXT: External
●
VID: Video
●
RFP: RF power
●
IFP: IF power
●
TIM: Time
●
SQL: Squelch
6dB/RRC/CHN Filter type for sweep bandwidth
(see BW menu in the Operating manual)
PA The preamplifier is activated.
GAT The frequency sweep is controlled via the [EXT TRIG/GATE IN] connector.
TDF A transducer factor is activated.
75 Ω The input impedance of the instrument is set to 75 Ω.
FRQ A frequency offset ≠ 0 Hz is set.
DC/AC An external DC or AC calibration signal is in use.
Inp Input source: digital I/Q (option R&S FSV-B17 only)
3.4.1.4 Diagram-specific and Trace Information
Diagram-specific information, e.g. concerning traces, is indicated in the diagram header and footer.
Trace information in diagram header
The diagram header (above the diagram) contains the following trace information:
The header may contain a user-defined introductory title, see Chapter 3.4.4.7, "Adding
a Title to the Diagram Header", on page 86.
Editing settings in the diagram header
All settings that are displayed in the diagram header can easily be edited by selecting the setting in the display (by tapping or clicking). The corresponding (edit) dialog box is displayed in which you can edit the setting.
Norm/NCor
Correction data is not used.
64User Manual 1175.7445.02 ─ 08
Page 68
R&S®ESRP
Quick Start
Basic Operations
Trace color
Trace no.
Detector
Trace Mode
AP AUTOPEAK detector
Pk MAX PEAK detector
Mi MIN PEAK detector
Sa SAMPLE detector
Av AVERAGE detector
Rm RMS detector
QP QUASIPEAK detector
CA CISPR Average detector
RA RMS Average detector
Clrw CLEAR/WRITE
Max MAX HOLD
Color of trace display in diagram
Trace number (1 to 6)
Selected detector:
Sweep mode:
Min MIN HOLD
Avg AVERAGE (Lin/Log/Pwr)
View VIEW
Marker information in Diagram Grid
The x and y axis positions of the last 2 markers or delta markers that were set, as well as their index, are displayed within the diagram grid, if available. The value in the square brackets after the index indicates the trace to which the marker is assigned. (Example: M1[1] defines marker 1 on trace 1.) For more than 2 markers, a separate marker table is displayed beneath the diagram.
If applicable, the active measurement function for the marker and its main results are indicated, as well. The functions are indicated with the following abbreviations:
FXD Reference fixed marker active
PHNoise Phase noise measurement active
CNT Frequency counter active
TRK Signal track active
65User Manual 1175.7445.02 ─ 08
Page 69
R&S®ESRP
Quick Start
Basic Operations
NOIse Noise measurement active
MDepth Measurement of the AM modulation depth active
TOI TOI measurement active
Marker Information in Marker Table
In addition to the marker information displayed within the diagram grid, a separate marker table may be displayed beneath the diagram. This table provides the following information for all active markers:
Type Marker type: N (normal), D (delta), T (temporary, internal), PWR (power sensor)
Dgr Diagram number
Trc Trace to which the marker is assigned
Stimulus x-value of the marker
Response y-value of the marker
Func Activated marker or measurement function
Func .Result Result of the active marker or measurement function
Mode-dependant Information in Diagram Footer
The diagram footer (beneath the diagram) contains the following information, depend­ing on the current mode:
Mode Label Information
FREQ CF Center frequency (between start and stop)
SPAN CF (1.0 ms/) Zero span
Span Frequency span
For most modes, the number of sweep points shown in the display are indicated in the diagram footer. In zoom mode, the (rounded) number of currently displayed points are indicated.
The diagram footer can be removed from the display temporarily, see Chapter 3.4.4.8,
"Removing the Diagram Footer", on page 87.
3.4.1.5 Instrument and Status Information
Global instrument settings, the instrument status and any irregularities are indicated in the status bar beneath the diagram.
66User Manual 1175.7445.02 ─ 08
Page 70
R&S®ESRP
Quick Start
Basic Operations
Hiding the status bar
You can hide the status bar display, e.g. in order to enlarge the display area for the measurement results.
1. Press the [DISPLAY] key.
2. In the "Display Settings" dialog box, select "Status Bar State: Off".
The status bar is no longer displayed.
●
To display the status bar again, select "Status Bar State: On".
SCPI command:
DISP:SBAR:STAT OFF
The following information is displayed:
Instrument status
The instrument is configured for operation with an external reference.
Error information
If errors or irregularities are detected, a keyword and an error message, if available, are displayed in the status bar.
The following keywords are used:
UNCAL One of the following conditions applies:
OVLD Overload of the input mixer.
IFOVL Overload of the IF signal path after the input mixer.
LOUNL Error in the instrument's frequency processing hardware was detected.
NO REF Instrument was set to an external reference but no signal was detected on the refer-
●
Correction data has been switched off.
●
No correction values are available. This occurs, for example, if a firmware update is performed followed by a cold start of the instrument.
●
Record the correction data by performing a self alignment
●
Increase the RF attenuation (for RF input).
●
Reduce the input level (for digital input)
●
Increase the reference level.
ence input.
OVEN OCXO reference frequency (option R&S FSV-B4) has not yet reached its operating
temperature. The message usually disappears a few minutes after power has beeen switched on.
Progress
The progress of the current operation is displayed in the status bar.
67User Manual 1175.7445.02 ─ 08
Page 71
R&S®ESRP

3.4.2 Means of User Interaction

Quick Start
Basic Operations
Date and time
The date and time settings of the instrument are displayed in the status bar.
The instrument provides a user interface for operation that does not require an external keyboard, using the following means of interaction:
●
Chapter 3.4.2.1, "Toolbar", on page 68
●
Chapter 3.4.2.2, "Touchscreen", on page 69
●
Chapter 3.4.2.3, "On-screen Keyboard", on page 70
●
Chapter 3.4.2.5, "Rotary Knob", on page 72
●
Chapter 3.4.2.6, "Arrow Keys, UNDO/REDO Keys", on page 72
●
Chapter 3.4.2.7, "Softkeys", on page 73
●
Chapter 3.4.2.9, "Dialog Boxes", on page 75
All tasks necessary to operate the instrument can be performed using this user inter­face. Apart from instrument specific keys, all other keys that correspond to an external keyboard (e.g. arrow keys, ENTER key) operate conform to Microsoft.
For most tasks, there are at least 2 alternative methods to perform them:
●
Using the touchscreen
●
Using other elements provided by the front panel, e.g. the keypad, rotary knob, or arrow and position keys
3.4.2.1 Toolbar
Standard functions can be performed via the icons in the toolbar at the top of the screen, if available (see Chapter 3.4, "Basic Operations", on page 60). By default, this toolbar is not displayed.
Displaying the toolbar
► Press the "Toolbar" icon to the right of the tabs in the display to toggle the toolbar
on or off.
Alternatively:
68User Manual 1175.7445.02 ─ 08
Page 72
R&S®ESRP
Quick Start
Basic Operations
1. Press the [SETUP] key.
2. Press the "Display Setup" softkey.
3. Press the "Tool Bar State On/Off" softkey.
Or:
4. Press the [DISPLAY] key.
5. In the "Display Settings" dialog box, select "Tool Bar State: On".
The toolbar is displayed at the top of the screen.
Remote:
DISP:TBAR:STAT ON
The following functions are available:
Table 3-2: Standard Application Functions in the Toolbar
Icon Description
Opens the "Select Mode" menu (see Chapter 3.4.1.1, "Channel Display", on page 61)
Opens an existing measurement (settings) file
Stores the current measurement file
Prints the current measurement screen
Saves the current measurement screen as a file (screenshot)
Reverts last operation.
Repeats previously reverted operation.
Selection mode: the cursor can be used to select (and move) markers in a zoomed display
Zoom mode: displays a dotted rectangle in the diagram that can be expanded to define the zoom area. Can be repeated several times.
Zoom off: the diagram is displayed in its original size
3.4.2.2 Touchscreen
A touchscreen is a screen that is touch-sensitive, i.e. it reacts in a specified way when a particular element on the screen is tapped by a finger or a pointing device, for exam­ple. Any user interface elements that can be clicked on by a mouse pointer can also be tapped on the screen to trigger the same behavior, and vice versa. Using the touch­screen, the following tasks (amoung others) can be performed by the tap of your finger:
●
Changing a setting
●
Changing the display
●
Moving a marker
●
Zooming into a diagram
●
Saving or printing results and settings
69User Manual 1175.7445.02 ─ 08
Page 73
R&S®ESRP
Quick Start
Basic Operations
To imitate a right-click by mouse using the touchscreen, for example to open a context­sensitive menu for a specific item, press the screen for about 1 second.
Deactivating and Activating the Touchscreen Function
The touchscreen function can be deactivated, e.g. when the instrument is being used for demonstration purposes and tapping the screen should not provoke an action.
1. Press the [DISPLAY] key.
2. In the dialog box, select one of the following options:
● "Touchscreen ON": touchscreen function is active for the entire screen
● "Touchscreen OFF": touchscreen is deactivated for the entire screen
● "DIAGRAM TOUCH OFF": touchscreen is deactivated for the diagram area of the screen, but active for the surrounding softkeys, toolbars and menus.
SCPI command:
DISP:TOUCh:STAT OFF
3.4.2.3 On-screen Keyboard
The on-screen keyboard is an additional means of interacting with the instrument with­out having to connect an external keyboard.
The on-screen keyboard display can be switched on and off as desired using the "On­Screen Keyboard" function key beneath the screen.
When you press this key, the display switches between the following options:
●
Keyboard displayed at the top of the screen
●
Keyboard displayed at the bottom of the screen
●
No keyboard displayed
You can use the TAB key on the on-screen keyboard to move the focus from one field to another in dialog boxes.
70User Manual 1175.7445.02 ─ 08
Page 74
R&S®ESRP
3.4.2.4 Keypad
Quick Start
Basic Operations
The keypad is used to enter alphanumeric parameters. It contains the following keys:
●
Alphanumeric keys Enters numbers and (special) characters in edit dialog boxes. For details refer to Chapter 3.4.3.1, "Entering Numeric Parameters", on page 76 and Chapter 3.4.3.2, "Entering Alphanumeric
Parameters", on page 76.
●
Decimal point Inserts a decimal point "." at the cursor position.
●
Sign key Changes the sign of a numeric parameter. In the case of an alphanumeric parame­ter, inserts a "-" at the cursor position.
●
Unit keys (GHz/-dBm MHz/dBm, kHz/dB and Hz/dB) These keys add the selected unit to the entered numeric value and complete the entry. In the case of level entries (e.g. in dB) or dimensionless values, all units have the value "1" as mulitplying factor. Thus, they have the same function as an ENTER key. The same is true for an alphanumeric entry.
●
ESC key Closes all kinds of dialog boxes, if the edit mode is not active. Quits the edit mode, if the edit mode is active. In dialog boxes that contain a "Cancel" button it activates that button. For "Edit" dialog boxes the following mechanism is used:
– If data entry has been started, it retains the original value and closes the dialog
box.
– If data entry has not been started or has been completed, it closes the dialog
box.
●
BACKSPACE key – If an alphanumeric entry has already been started, this key deletes the charac-
ter to the left of the cursor.
– If no input field is currently active, the most recently entered value is undone,
i.e. the previous value is retrieved. Thus, you can toggle between two values (e.g. spans).
●
ENTER key – Concludes the entry of dimensionless entries. The new value is accepted. – With other entries, this key can be used instead of the "Hz/dB" unit key. – In a dialog box, presses the default or focused button. – In a dialog box, activates the edit mode for the focused area, if available. For
details on the edit mode refer to Chapter 3.4.3.3, "Navigating in Dialog Boxes", on page 78.
71User Manual 1175.7445.02 ─ 08
Page 75
R&S®ESRP
3.4.2.5 Rotary Knob
3.4.2.6 Arrow Keys, UNDO/REDO Keys
Quick Start
Basic Operations
– In a dialog box, activates or deactivates the selected option of the focused
area, if the edit mode is active.
The rotary knob has several functions:
●
Increments (clockwise direction) or decrements (counter-clockwise direc­tion) the instrument parameter at a defined step width in the case of a numeric entry.
●
Shifts the selection bar within focused areas (e.g. lists), if the edit mode is activated.
●
Shifts markers, limit lines, etc on the screen.
●
Acts like the ENTER key, when it is pressed. For details refer to Chap-
ter 3.4.3.3, "Navigating in Dialog Boxes", on page 78.
●
Moves the scroll bar vertically, if the scroll bar is focused and the edit mode is activated.
For details on the edit mode refer to Chapter 3.4.3.3, "Navigating in Dialog
Boxes", on page 78.
The arrow keys are used for navigation. The [UNDO]/[REDO] keys support you during input.
UPARROW/DNARROW keys
The [UPARROW] or [DNARROW] keys do the following:
●
In a numeric edit dialog box, increase or decrease the instrument parameter.
●
In a list, scroll forward and backward through the list entries.
●
In a table, move the selection bar vertically.
●
In windows or dialog boxes with vertical scroll bar, move the scroll bar.
LEFTARROW/RIGHTARROW keys
The [LEFTARROW] or [RIGHTARROW] keys do the following:
●
In an alphanumeric edit dialog box, move the cursor.
●
In a list, scroll forward and backward through the list entries.
●
In a table, move the selection bar horizontally.
●
In windows or dialog boxes with horizontal scroll bar, move the scroll bar.
72User Manual 1175.7445.02 ─ 08
Page 76
R&S®ESRP
3.4.2.7 Softkeys
Quick Start
Basic Operations
UNDO/REDO keys
●
The [UNDO] key reverts the previously performed action, i.e. the status before the previous action is retrieved. The undo function is useful, for example, if you are performing a zero span mea­surement with several markers and a limit line defined and accidentally click the "ACP" softkey. In this case, very many settings would be lost. However, if you press [UNDO] immediately afterwards, the previous status is retrieved, i.e. the zero span measurement and all settings.
●
The [REDO] key repeats the previously reverted action, i.e. the most recently per­formed action is repeated.
The [UNDO] function is not available after a [PRESET] or "RECALL" operation. When these functions are used, the history of previous actions is deleted.
Softkeys are virtual keys provided by the software. Thus, more functions can be provi­ded than those that can be accessed directly via the function keys on the device. Soft­keys are dynamic, i.e. depending on the selected function key, a different list of soft­keys is displayed on the right side of the screen
A list of softkeys for a certain function key is also called a menu. Each softkey can either represent a specific function, or a submenu that in turn represents several soft­keys.
Selecting softkeys
► A particular softkey is selected by pressing the key on the screen with a finger,
mouse pointer or other pointing device.
Softkeys can only be operated via the screen, there are (usually) no corresponding function keys.
Navigating in softkey menus
●
The "More" softkey indicates that the menu contains more softkeys than can be displayed at once on the screen. When pressed, it displays the next set of soft­keys.
●
If the softkey label contains a ">" symbol, it represents a submenu of further soft­keys. When you press it, the submenu is displayed.
●
The "Up" key switches to the next higher level of the menu.
●
The start menu of the current measurement mode is accessed directly by pressing the [HOME] key on the front panel.
Softkey actions
A softkey performs one of the following actions when pressed:
73User Manual 1175.7445.02 ─ 08
Page 77
R&S®ESRP
Quick Start
Basic Operations
●
Opens a dialog box to enter data.
●
Switches a function on or off.
●
Opens a submenu (only softkeys with a ">" symbol).
Recognizing the softkey status by color
In the factory configuration, a softkey is highlighted orange when a corresponding dia­log box is open. If it is a toggle softkey, the current state is highlighted blue. If an instru­ment function is not available temporarily due to a specific setting, the associated soft­key is deactivated and its text is colored gray.
Some softkeys belong to a certain (firmware) option. If this option is not implemented in your device, the associated softkeys are not displayed.
Hiding softkeys
You can hide the softkey display, e.g. when using remote control, in order to enlarge the display area for the measurement results. When you press a function key on the front panel, the softkeys are displayed temporarily, enabling you to perform a certain task with the softkeys. They are then automatically hidden again when they have not been used for a specified time. Any edit dialog boxes required for entry remain in the display.
1. Press the [DISPLAY] key.
2. In the "Display Settings" dialog box, select "Softkey Bar State: Off". The softkeys are no longer displayed.
► To display the softkeys again, select "Softkey Bar State: On".
Remote:
DISP:SKEY:STAT OFF
3.4.2.8 Context-sensitive Menus
Markers and traces in the display, as well as the information in the channel bar, have context-sensitive menus. If you right-click on a marker or trace in the display, or infor­mation in the channel bar (or touch it for about 1 second), a menu is displayed which contains the same functions as the corresponding softkey. This is useful, for example, when the softkey display is hidden (see Chapter 3.4.2.7, "Softkeys", on page 73).
74User Manual 1175.7445.02 ─ 08
Page 78
R&S®ESRP
Quick Start
Basic Operations
If a menu entry contains an arrow to the right of it, a submenu is available for that entry.
► To close the menu, press the ESC key or click in the display outside of the menu.
3.4.2.9 Dialog Boxes
In most cases, the R&S ESRP dialog boxes are designed to enter a numeric value. In the documentation, these dialog boxes are called "edit dialog boxes". Dialog boxes that are not only designed for parameter entry have a more complex structure and, in the documentation, are called "dialog boxes". The navigation in Windows dialog boxes dif­fers in some aspects from the navigation in R&S ESRP dialog boxes. For details, see
Chapter 3.4.3.3, "Navigating in Dialog Boxes", on page 78.
The following figure shows an example of a edit dialog box:
Figure 3-4: Edit dialog box for parameter entry
75User Manual 1175.7445.02 ─ 08
Page 79
R&S®ESRP

3.4.3 Setting Parameters

3.4.3.1 Entering Numeric Parameters
Quick Start
Basic Operations
The title bar shows the name of the parameter that was selected. The entry is per­formed in the editing line. When the dialog box is displayed, the focus is on the editing line and it contains the currently used parameter value and its unit. The optional third line shows status and error messages which always refer to the current entry.
This section describes how to perform the following basic tasks in the R&S ESRP:
●
Chapter 3.4.3.1, "Entering Numeric Parameters", on page 76
●
Chapter 3.4.3.2, "Entering Alphanumeric Parameters", on page 76
●
Chapter 3.4.3.3, "Navigating in Dialog Boxes", on page 78
If a field requires numeric input, the keypad provides only numbers.
1. Enter the parameter value using the keypad, or change the currently used parame­ter value by using the rotary knob (small steps) or the UPARROW or DNARROW keys (large steps).
2. After entering the numeric value via keypad, press the corresponding unit key. The unit is added to the entry.
3. If the parameter does not require a unit, confirm the entered value by pressing the ENTER key or one of the unit keys. The editing line is highlighted in order to confirm the entry.
3.4.3.2 Entering Alphanumeric Parameters
If a field requires alphanumeric input, you can use the on-screen keyboard to enter numbers and (special) characters (see also Chapter 3.4.2.3, "On-screen Keyboard", on page 70).
Figure 3-5: On-screen keyboard
Alternatively, you can use the keypad. Every alphanumeric key provides several char­acters and one number. The decimal point key (.) provides special characters, and the
76User Manual 1175.7445.02 ─ 08
Page 80
R&S®ESRP
Quick Start
Basic Operations
sign key (-) toggles between capital and small letters. For the assignment refer to
Table 3-3.
Entering numbers and (special) characters via the keypad
1. Press the key once to enter the first possible value.
2. All characters available via this key are displayed.
3. To choose another value provided by this key, press the key again, until your desired value is displayed.
4. With every key stroke the next possible value of this key is displayed. If all possible values have been displayed, the series starts with the first value again. For infor­mation on the series refer to Table 3-3.
5. To change from capital to small letters and vice versa, press the sign key (-).
6. When you have chosen the desired value, wait for 2 seconds (to use the same key again), or start the next entry by pressing another key.
Entering a blank
► Press the "Space" bar, or press the "0" key and wait 2 seconds.
Correcting an entry:
1. Using the arrow keys, move the cursor to the right of the entry you want to delete.
2. Press the [BACKSPACE] key.
3. The entry to the left of the cursor is deleted.
4. Enter your correction.
Completing the entry
► Press the [ENTER] key or the rotary knob.
Aborting the entry
► Press the [ESC] key.
The dialog box is closed without changing the settings.
Table 3-3: Keys for alphanumeric parameters
Key name
(upper inscription)
7 7 µ Ω ° € ¥ $ ¢
8 A B C 8 Ä ÆÅ Ç
9 D E F 9 É
Series of (special) characters and number provided
77User Manual 1175.7445.02 ─ 08
Page 81
R&S®ESRP
Quick Start
Basic Operations
Key name
(upper inscription)
4 G H I 4
5 J K L 5
6 M N O 6 Ň Ö
1 P Q R S 1
2 T U V 2 Ü
3 W X Y Z 3
0 <blank> 0 – @ + / \ < > = % &
. . * : _ , ; " ' ? ( ) #
– <toggles between capital and small letters>
Series of (special) characters and number provided
3.4.3.3 Navigating in Dialog Boxes
Some of the dialog boxes are not only for parameter entry, and therefore have a more complex structure. The following figure shows an example.
Changing the focus
The focus on the graphical user interface is moved by pressing an element on the screen, or via the rotary knob. The focused area is marked with a blue frame (see Fig-
ure 3-6). If this area consists of more than one element, e.g. lists of options or tables,
78User Manual 1175.7445.02 ─ 08
Page 82
R&S®ESRP
Quick Start
Basic Operations
you must first switch to the edit mode in order to make changes. A focused area in the edit mode is marked with a dashed blue frame (see Figure 3-7).
Figure 3-6: Focused area
Figure 3-7: Focused area in edit mode
Edit mode
When using the touchscreen for focus changes, all focused areas are in the edit mode automatically, if available. Otherwise, you must switch to edit mode manually.
Switching to edit mode
1. Press the [ENTER] key.
2. To quit the edit mode, press the [ESC] key.
Working in dialog boxes
●
To edit alphanumeric parameters, use the keypad or the on-screen keyboard. For details see Chapter 3.4.3.1, "Entering Numeric Parameters", on page 76 and
Chapter 3.4.3.2, "Entering Alphanumeric Parameters", on page 76. If you edit
fields, the edit mode is activated automatically when you start typing.
●
To move the focus to the next interface element (e.g. field, option, list), press it on the screen, or turn the rotary knob.
79User Manual 1175.7445.02 ─ 08
Page 83
R&S®ESRP
Quick Start
Basic Operations
●
To select or deselect an option, press the option on the screen. Alternatively:
– If the focused area consists of more than one option and the edit mode is not
active, change into the edit mode.
– Scroll through the list of options using the arrow keys or the rotary knob (only
for vertical direction) until the option you want to activate or deactivate is high­lighted.
– Press the rotary knob or the [ENTER] key to confirm your selection.
The option is activated or deactivated, depending on its previous setting.
– To leave the edit mode, press the [ESC] key.
●
To open a drop-down list, press the arrow next to the list. Alternatively, press the [ENTER] key or the rotary knob. When opened, the list is in edit mode.
●
To select an entry without opening a drop-down list, use the arrow keys to browse through the list entries.
●
To select a list entry, press the entry on the screen. Alternatively:
– If the edit mode is not active, change into the edit mode. – Scroll through the list using the arrow keys or the rotary knob until the list entry
you want to select is highlighted.
– Confirm your choice by pressing the rotary knob or the [ENTER] key.
If a drop-down list was opened, it is closed.
●
To change from one tab to the next, press the tab on the screen.
●
To press a button in a dialog box, press the button on the screen. Alternatively:
– Place the focus on the desired button using the rotary knob. – Confirm your choice by pressing the rotary knob or the [ENTER] key.
●
To close the dialog box and accept the changes, press the "OK" button.
●
To close the dialog box without accepting the changes, press the [ESC] key or the "Cancel" button.
Particularities in Windows dialog boxes
In some cases, e.g. if you want to install a printer, original Windows dialog boxes are used. In these dialog boxes, the navigation behavior is different to the one you are used to from R&S ESRP applications. In the following, the important differences and useful tips are listed:
●
The rotary knob and function keys do not work. Do not use them. Use the touch­screen instead.
80User Manual 1175.7445.02 ─ 08
Page 84
R&S®ESRP

3.4.4 Changing the Display

3.4.4.1 Changing the Focus
Quick Start
Basic Operations
Any selected function is always performed on the currently focussed element in the display, e.g. a dialog field, diagram, or table row. Which element is focussed is indica­ted by a blue frame (diagram, window, table) or is otherwise highlighted (softkey, marker etc.). Moving the focus is most easily done by tapping on the element on the touchscreen. Alternatively, use the "Tab" key on the on-screen keyboard or the rotary knob to move the focus from one element to the next on the display.
To move the focus on the screen between any displayed diagrams or tables, press the "Change focus" function key on the front panel. The focus moves from the diagram to the first table to the next table etc. and then back to the diagram.
3.4.4.2 Switching between Split and Maximized Display
In some measurement modes, a table with markers or measurement results is dis­played beneath the diagram. In this case, you may wish to maximize the diagram or table display in order to see more details.
Press the [SPLIT/MAXIMIZE] key on the front panel to switch between a split screen and a full screen (maximized display). In maximized display, the table or diagram cur­rently focused is maximized. In split display, both the diagram and any available tables are displayed in one screen.
SCPI command:
DISPlay[:WINDow<n>][:SUBWindow<m>]:SIZE on page 949
3.4.4.3 Soft and Mini Soft Front Panel Display
When working with an external monitor or operating via remote control on a computer, it is useful to be able to interact with the R&S ESRP without requiring the keypad and keys located on the front panel of the instrument. Therefore, a "Soft Front Panel" dis­play is available, which simulates the entire front panel of the instrument (except for the external connectors) on the screen. You can switch between "normal" screen display and extended display. In the extended display, the keys and other hardware controls of the instrument are simulated on the screen.
If you require a Soft Front Panel but do not want to lose too much space for results in the display area, a mini soft Front Panel is available. The mini version displays only the hardkeys in a separate window in the display area. This window can be closed auto­matically after pressing a key, or remain open, as desired. Using the Mini Front Panel, the R&S ESRP interface is fully operable from a monitor with a resolution of 1024x768 pixels.
81User Manual 1175.7445.02 ─ 08
Page 85
R&S®ESRP
Quick Start
Basic Operations
Switching to soft Front Panel display
1. Press the SETUP key.
2. Press the "General Setup" softkey.
3. Press the "More" softkey.
4. Press the "Soft Front Panel" softkey. Alternatively:
5. Press the [DISPLAY] key.
6. In the "Display Settings" dialog box, select "Front Panel State: On". The extended display appears on the screen.
Using the F6 key you can toggle the Front Panel display on and off.
Remote: SYST:DISP:FPAN:STAT ON
Working with the Soft Front Panel
Basic operation with the soft Front Panel is identical to normal operation. To activate a key, either press the key on the touchscreen, or click on it with the mouse pointer. To simulate the use of the rotary knob, use the additional keys displayed between the key­pad and the arrow keys:
82User Manual 1175.7445.02 ─ 08
Page 86
R&S®ESRP
Quick Start
Basic Operations
Icon Function
Turn left
Enter
Turn right
Switching to Mini Front Panel display
1. Press the [DISPLAY] key.
2. In the "Display Settings" dialog box, select "Mini Front Panel State: On". The "Mini Front Panel" window appears on the screen. It can be moved anywhere on the screen where it does not interfere with your current task.
Using the key combination [ALT + M] you can toggle the Mini Front Panel display on and off.
83User Manual 1175.7445.02 ─ 08
Page 87
R&S®ESRP
3.4.4.4 Enlarging the Display Area
3.4.4.5 Displaying the Toolbar
Quick Start
Basic Operations
Auto close option
By default, the "Auto close" option is activated and the Mini Front Panel window closes automatically after you select a key. This is useful if you only require the Front Panel display to press a single function key.
If you want the window to remain open, deactivate the "Auto close" option. You can close the window manually by clicking "Close Panel" or the key combination [ALT + M].
You can enlarge the screen display area if you are using an external monitor or the Soft and Mini Soft Frontpanel display (see Chapter 3.4.4.3, "Soft and Mini Soft
Front Panel Display", on page 81). To do so, drag the lower right corner of the win-
dow to the required size. In standard display, a small icon is displayed in the lower right corner of the screen.
Standard file functions can be performed via the icons in the toolbar at the top of the screen (see the Chapter 3.4.2.1, "Toolbar", on page 68). By default, this toolbar is not displayed.
To display the toolbar:
1. Press the DISPLAY key.
2. Under "Select Tool Bar State", select "On".
Alternatively:
1. Press the SETUP key.
2. Press the "Display Setup" softkey.
3. Press the "Tool Bar State On/Off" softkey.
The toolbar is displayed at the top of the screen.
3.4.4.6 Zooming into the Diagram
You can zoom into the diagram to visualize the measurement results in greater detail. Using the touchscreen or a mouse pointer you can easily define the area to be enlarged.
84User Manual 1175.7445.02 ─ 08
Page 88
R&S®ESRP
Quick Start
Basic Operations
Zoom and the number of sweep points
Note that zooming is merely a visual tool, it does not change any measurement set­tings, such as the number of sweep points!
You should increase the number of sweep points before zooming, as otherwise the function has no real effect (see the "Sweep Points" softkey, described in the Operating Manual and online help).
To zoom into the diagram
1. Display the toolbar as described in Chapter 3.4.4.5, "Displaying the Toolbar", on page 84.
2. Click on the "Zoom On" icon in the toolbar. A dotted rectangle is displayed in the diagram.
3. Drag the lower right corner of the rectangle (either via touchscreen or a mouse pointer) to define the area in the diagram to be enlarged.
4. Repeat these steps, if necessary, to enlarge the diagram further.
Scrolling in the zoomed display
You can scroll the diagram area to display the entire diagram using the scrollbars at the right and at the bottom of the diagram.
85User Manual 1175.7445.02 ─ 08
Page 89
R&S®ESRP
Quick Start
Basic Operations
To return to selection mode in the diagram
While you are in zoom mode, touching the screen changes the zoom area. In order to select or move a trace or marker, you must switch back to selection mode:
► Click on the "Selection mode" icon in the toolbar.
To return to original display
► Click on the "Zoom Off" icon in the toolbar.
A dotted rectangle is displayed in the diagram.
Remote commands:
1. Activate the zoom mode:
DISP:ZOOM ON
2. Define the zoom area:
DISP:ZOOM:AREA 5,30,20,100
3. Hide the overview window:
DISP:ZOOM:OVER OFF
3.4.4.7 Adding a Title to the Diagram Header
You can add an introductory title to the trace information in the diagram header.
1. Press the SETUP key.
86User Manual 1175.7445.02 ─ 08
Page 90
R&S®ESRP
3.4.4.8 Removing the Diagram Footer
Quick Start
Basic Operations
2. Press the "Display Setup" softkey.
3. Press the "Screen Title On/Off" softkey. An edit dialog box is displayed.
4. Enter the title and press "ENTER". The title is displayed at the beginning of the diagram header.
Some additional diagram-specific information is displayed in the diagram footer (see
Chapter 3.4.1.4, "Diagram-specific and Trace Information", on page 64). This footer
can be removed from display if necessary.
1. Press the SETUP key.
2. Press the "Display Setup" softkey.
3. Press the "Annotation On/Off" softkey. The footer is displayed beneath the diagram or removed from display.
3.4.4.9 Selecting a Theme
You can select a theme for the screen display. The theme defines the colors used for keys and screen elements, for example. The default theme is "BlueOcean".
Selecting a theme
1. Press the SETUP key.
2. Press the "Display Setup" softkey.
3. Press the "More" softkey.
4. Press the "Theme Selection" softkey. A list of available themes is displayed.
5. Select the desired theme from the list. The screen display changes according to the selected theme.
SCPI command:
DISPlay:THEMe:SELect
3.4.4.10 Displaying and Setting the Date and Time
You can switch the date and time display in the diagram footer on or off. By default, it is displayed. You can also switch between German and US format.
Switching the date and time display off
1. Press the SETUP key.
87User Manual 1175.7445.02 ─ 08
Page 91
R&S®ESRP
3.4.4.11 Changing the Display Update Rate
Quick Start
Basic Measurement Examples
2. Press the "Display Setup" softkey.
3. Press the "Time+Date" softkey to "Off".
Changing the format
1. Press the SETUP key.
2. Press the "Display Setup" softkey.
3. Press the "Time+Date Format" softkey until the required format is selected.
Setting the date and time
To set the date and time, click on the date and time display in the diagram footer. The standard Windows "Date and Time Properties" dialog is displayed and you can set the correct date and time.
When performance is poor due to slow data transfer (for example during remote con­trol), it may be helpful to decrease the frequency with which the screen display is upda­ted.
To descrease the display update rate
1. Press the [DISPLAY] key. The "Display Settings" dialog box is opened.
2. Under "Display Update Rate", select "Slow". The display is updated less frequently, and performance for measurements should
improve. When data transfer is no longer a problem, you can set the update rate back to "Fast" in the same way.

3.5 Basic Measurement Examples

The following measurement examples are intended as an introduction to operating the R&S ESRP. The User Manual contains additional and more advanced examples. Refer to chapter "Advanced Measurement Examples" to find the following topics:
●
High-Sensitivity Harmonics Measurements
●
Separating Signals by Selecting an Appropriate Resolution Bandwidth
●
Intermodulation Measurements
●
Measuring Signals in the Vicinity of Noise
●
Measuring Noise Power Density
●
Measurement of Noise Power within a Transmission Channel
●
Measuring Phase Noise
●
Measuring Channel Power and Adjacent Channel Power
88User Manual 1175.7445.02 ─ 08
Page 92
R&S®ESRP

3.5.1 Measuring a Sinusoidal Signal

Quick Start
Basic Measurement Examples
For a more detailed description of the basic operating steps, e.g. selecting menus and setting parameters, refer to Chapter 3.4, "Basic Operations", on page 60.
One of the most common measurement tasks that can be handled by using a signal analyzer is determining the level and frequency of a signal. When measuring an unknown signal, you can usually start with the presettings.
High input values
If levels higher than +30 dBm (=1 W) are expected or are possible, a power attenuator must be inserted before the RF input of the analyzer. If this is not done, signal levels exceeding 30 dBm can damage the RF attenuator or the input mixer. The total power of all occuring signals must be taken into account.
Test setup
●
Connect the RF output of the signal generator to the RF input of R&S ESRP.
Table 3-4: Signal generator settings (e.g. R&S SMU)
Frequency 128 MHz
Level -30 dBm
3.5.1.1 Measuring the Level and Frequency Using Markers
The level and frequency of a sinusoidal signal can be measured easily by using the marker function. The R&S ESRP always displays its amplitude and frequency at the marker position. The frequency measurement uncertainty is determined by the fre­quency reference of the R&S ESRP, the resolution of the marker frequency display and the number of sweep points.
1. Reset the instrument by pressing the [PRESET] key.
2. Select "Spectrum" mode.
3. Connect the signal to be measured to the RF INPUT analyzer input on the instru­ment front panel.
4. Set the center frequency to 128 MHz. a) Press the [FREQ] key.
The dialog box for the center frequency is displayed.
b) In the dialog box, enter 128 using the numeric keypad and confirm the entry
with the MHz key.
5. Reduce the frequency span to 1 MHz. a) Press the [SPAN] key.
89User Manual 1175.7445.02 ─ 08
Page 93
R&S®ESRP
Quick Start
Basic Measurement Examples
b) In the dialog box, enter 1 using the numeric keypad and confirm the entry by
pressing the [MHz] key.
Note: Coupled settings. When the frequency span is defined, the resolution band­width, the video bandwidth and the sweep time are automatically adjusted, because these functions are defined as coupled functions in the presettings.
6. Measure the level and frequency using the marker by pressing the [MKR] key. The marker is activated and automatically set on the maximum of the trace. The level and frequency values measured by the marker are displayed in the marker field at the top edge of the screen. They can be taken as the measurement result.
M1[1] -30.00 dBm
128.00000 MHz
The field header indicates the number of the marker (Marker 1) and the trace on which the marker is located ([1] = Trace 1).
Note: Performing a peak search. When a marker is initially activated, it automati­cally performs the peak search function (as shown in the example). If a marker was already active, you have to press the [Peak Search] key on the front panel or the "Peak" softkey in the [MKR >] menu in order to set the currently active marker to the maximum of the displayed signal.
Increasing the Frequency Resolution
The frequency resolution of the marker is predefined by the pixel resolution of the trace. A trace uses 691 pixels, i.e. if the frequency span is 1 MHz, each pixel corre­sponds to a span of approx. 1.4 kHz. This corresponds to a maximum uncertainty of +/-
0.7 kHz.
You can increase the pixel resolution of the trace by reducing the frequency span.
Reducing the frequency span to 10 kHz
1. Press the [SPAN] key.
2. Using the numeric keypad, enter 10 in the dialog box and confirm the entry with the [kHz] key.
The generator signal is measured using a span of 10 kHz. The pixel resolution of the trace is now approx. 14 Hz (10 kHz span / 691 pixels) , i.e. the precision of the marker frequency display increases to approx. ±7 Hz.
Setting the Reference Level
With signal analyzers, the reference level is the level at the upper limit of the diagram. To achieve the widest dynamic range possible for a spectrum measurement, use the entire level span of the signal analyzer. In other words, the highest level that occurs in the signal should be located at the top edge of the diagram (=reference level) or imme­diately below it.
90User Manual 1175.7445.02 ─ 08
Page 94
R&S®ESRP
Quick Start
Basic Measurement Examples
Low Reference Levels
If the selected reference level is lower than the highest signal that occurs in the spec­trum, the signal path in the R&S ESRP is overloaded.
In this case, the message "IFOVL" is displayed in the error message field.
In the presettings, the value of the reference level is -10 dBm. If the input signal is
-30 dBm, the reference level can be reduced by 20 dB without causing the signal path
to be overloaded.
Reducing the reference level by 20 dB
1. Press the [AMPT] key. The amplitude menu is displayed. The "Ref Level" softkey is highlighted in red to indicate that it is activated for data entry. The dialog box for the reference level is also opened.
2. Using the numeric keypad, enter 30 and confirm the entry with the [- dBm] key. The reference level is set to -30 dBm. The maximum of the trace is near the maxi­mum of the measurement diagram. However, the increase in the displayed noise is not substantial. Thus, the distance between the signal maximum and the noise dis­play (=dynamic range) has increased.
Setting the marker level equal to the reference level
The marker can also be used to shift the maximum value of the trace directly to the top edge of the diagram. If the marker is located at the maximum level of the trace (as in this example), the reference level can be moved to the marker level as follows:
1. Press the [MKR] key.
2. Press the "Ref Lvl = Mkr Lvl" softkey.
The reference level is set equal to the measured level where the marker is located.
Thus, setting the reference level is reduced to two keystrokes.
3.5.1.2 Measuring the Signal Frequency Using the Frequency Counter
The built-in frequency counter allows you to measure the frequency more accurately than measuring it with the marker. The frequency sweep is stopped at the marker, and the R&S ESRP measures the frequency of the signal at the marker position.
In the following example, the frequency of the generator at 128 MHz is shown by using the marker.
Prerequisite
In this example, a precise frequency measurement is to be performed. Therefore, con­nect the signal generator's "Ref OUT" connector to the analyzer's "Ref IN" connector.
1. Set the signal analyzer to the default state by pressing the [PRESET] key.
91User Manual 1175.7445.02 ─ 08
Page 95
R&S®ESRP
Quick Start
Basic Measurement Examples
The R&S ESRP is set to its default state.
2. Select "Spectrum" mode.
3. Set the center frequency and the span. a) Press the [FREQ] key and enter 128 MHz.
The center frequency of the R&S ESRP is set to 128 MHz.
b) Press the [SPAN] key and enter 1 MHz.
The frequency span of the R&S ESRP is set to 1 MHz.
4. In the "Setup" menu, select "Reference Ext".
5. Activate the marker by pressing the [MKR] key. The marker is activated and set to the signal maximum. The level and the fre­quency of the marker are displayed in the marker field (diagram header or marker table).
6. Activate the frequency counter by pressing the "Sig Count On/Off" softkey in the "MKR FUNC" menu. The result of frequency counting is displayed in the selected resolution in the marker field.
Figure 3-8: Measurement of the frequency with the frequency counter
92User Manual 1175.7445.02 ─ 08
Page 96
R&S®ESRP

3.5.2 Measuring Harmonics of Sinusoidal Signals

Quick Start
Basic Measurement Examples
Prerequisites for using the internal frequency counter
In order to obtain a correct result when measuring the frequency with the internal fre­quency counter, an RF sinusoidal signal or a spectral line must be available. The marker must be located more than 25 dB above the noise level to ensure that the specified measurement accuracy is adhered to.
Measuring the harmonics of a signal is a very common task that can be performed optimally by using a Signal and Spectrum Analyzer.
In the following example, the generator signal with 128 MHz and -20 dBm is used again.
Measuring the Suppression of the First and Second Harmonic of an Input Signal
1. Set the signal analyzer to the default state by pressing the [PRESET] key. The R&S ESRP is in the default state.
2. Select "Spectrum" mode.
3. Set the start frequency to 100 MHz and the stop frequency to 400 MHz. a) Press the [FREQ] key.
b) Press the "Start" softkey and enter 100 MHz. c) Press the "Stop" softkey and enter 400 MHz.
The R&S ESRP displays the fundamental and the first and second harmonics of the input signal.
4. To average (smooth) the noise, reduce the video bandwidth. a) Press the [BW] key.
b) Press the "Video BW Manual" softkey and enter 100 kHz.
5. Set the attenuation to 0 dB. a) Press the [AMPT] key.
b) Press the "RF Atten Manual" softkey. c) Enter 0 dB in the edit dialog box.
6. Activate the marker by pressing the [MKR] key. "Marker 1" is activated and positioned to the signal maximum (fundamental at 128 MHz). The level and frequency of the marker is displayed in the marker field.
7. Activate the delta marker and measure the harmonic suppression. a) In the "MKR" menu, press the "Marker 2" softkey.
"Marker 2" is activated as a delta marker ("D2 [1]"). It is automatically set on the largest harmonic of the signal. The frequency offset and level offset from marker 1 are displayed in the channel information bar.
93User Manual 1175.7445.02 ─ 08
Page 97
R&S®ESRP
Quick Start
Basic Measurement Examples
b) In the "MKR" menu, press the "Marker 3" softkey.
"Marker 3" is activated as a delta marker ("D3 [1]"). It is automatically set on the next largest harmonic of the signal. The frequency offset and level offset from marker 1 on the fundamental are displayed in the channel information bar (see Figure 3-9).
Figure 3-9: Measuring the harmonic suppression of the internal reference generator.
Delta markers D2 [1] and D3 [1] show the offset of the first and second harmonics from the fundamental.
Reducing Noise
The signal analyzer offers three methods to differentiate the harmonics of a signal from the noise effectively:
●
Reducing the video bandwidth
●
Averaging the trace
●
Reducing the resolution bandwidth
Reducing the video bandwidth and averaging the traces cause the noise from the ana­lyzer or the DUT to be reduced, depending on which component is larger. Both averag­ing methods reduce the measurement uncertainty, particularly in the case of small sig­nal-to-noise ratios, because the measurement signal is also separated from the noise.
94User Manual 1175.7445.02 ─ 08
Page 98
R&S®ESRP
Quick Start
Basic Measurement Examples
Reducing the noise by reducing the video bandwidth
1. Press the [BW] key.
2. Press the "Video BW Manual" softkey.
3. Reduce the video bandwidth to 1 kHz (for example), by entering 1 kHz. This smoothes the noise significantly, and the sweep time is increased to 200 ms. In other words, the measurement will take significantly more time. The video band­width that is displayed is marked with a bullet to indicate that it is no longer coupled to the resolution bandwidth (see Figure 3-10).
Figure 3-10: Suppression of noise during harmonics measurement by reducing video bandwidth
4. Recouple the video bandwidth to the resolution bandwidth. a) Press the [BW] key.
b) Press the "Video BW Auto" softkey.
Reducing the noise by averaging the trace
1. Press the [TRACE] key.
2. Press the "Trace Wizard" softkey.
95User Manual 1175.7445.02 ─ 08
Page 99
R&S®ESRP
Quick Start
Basic Measurement Examples
3. For "Trace 1", press the button in the "Trace Mode" column and select "Average" from the list. The noise component of the trace is smoothed by averaging 10 successive traces.
4. Switch off trace averaging by pressing the button in the "Trace Mode" column and selecting "Clear Write" from the list.
Reducing the noise by reducing the measurement bandwidth
The noise is reduced in proportion to the bandwidth by reducing the resolution band­width, i.e. reducing the resolution bandwidth by a factor of 10 also reduces the noise by a factor of 10 (which corresponds to 10 dB). The amplitude of sinusoidal signals is not affected by reducing the resolution bandwidth.
1. Set the resolution bandwidth to 10 kHz. a) Press the [BW] key.
b) Press the "Res BW Manual" softkey and enter 10 kHz.
The noise decreases by approx. 25 dB compared to the previous setting. Since the video bandwidth is coupled to the resolution bandwidth, it is reduced to 30 kHz in proportion to the resolution bandwidth. This causes the sweep time to increase to 3.0 seconds.
2. Reset the resolution bandwidth (couple it to the span) by pressing the "Res BW Auto" softkey in the "BW" menu.

3.5.3 Measuring Signal Spectra with Multiple Signals

3.5.3.1 Separating Signals by Selecting the Resolution Bandwidth
A basic feature of a Signal and Spectrum Analyzer is the ability to separate the spec­tral components of a mixture of signals. The resolution at which the individual compo­nents can be separated is determined by the resolution bandwidth. Selecting a resolu­tion bandwidth that is too large may make it impossible to distinguish between spectral components, i.e. they are displayed as a single component.
An RF sinusoidal signal is displayed using the passband characteristic of the defined resolution filter (RBW). Its specified bandwidth is the 3 dB bandwidth of the filter.
Two signals with the same amplitude can be resolved if the resolution bandwidth is smaller than or equal to the frequency spacing of the signal. If the resolution bandwidth is equal to the frequency spacing, the spectrum display shows a level drop of 3 dB pre­cisely in the center of the two signals. Decreasing the resolution bandwidth makes the level drop larger, which thus makes the individual signals clearer.
Higher spectral resolution at a narrower bandwidth is accomplished through longer sweep times at the same span. Reducing the resolution bandwidth by a factor of 3 increases the sweep time by a factor of 9.
96User Manual 1175.7445.02 ─ 08
Page 100
R&S®ESRP
Quick Start
Basic Measurement Examples
Example:
Separating Two Signals
The two signals have a level of -30 dBm each at a frequency spacing of 30 kHz
Table 3-5: Signal generator settings (e.g. R&S SMU)
Signal generator 1 -30 dBm 128,00 MHz
Signal generator 2 -30 dBm 128,03 MHz
Level Frequency
1. Set the signal analyzer to the default state by pressing the [PRESET] key. The R&S ESRP is set to its default state.
2. Select "Spectrum" mode.
3. Set the center frequency to 128.015 MHz and the frequency span to 300 kHz. a) Press the [FREQ] key and enter 128.015 MHz.
b) Press the [SPAN] key and enter 300 kHz.
4. Set the resolution bandwidth to 30 kHz and the video bandwidth to 1 kHz. a) Press the [BW] key
b) Press the "Res BW Manual" softkey and enter 30 kHz. c) Press the "Video BW Manual" softkey and enter 1 kHz.
Note: Larger video bandwidths. The video bandwidth is set to 1 kHz in order to make the level drop in the center of the two signals clearly visible. At larger video bandwidths, the video voltage that results from envelope detection is not suffi­ciently suppressed. This produces additional voltages, which are visible in the trace, in the transition area between the two signals.
97User Manual 1175.7445.02 ─ 08
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use