R&S
®
ESP
I
EMI Test Receiver
Operating Manual
1164.6607.12 – 02
Operating Manual
Test & Measurement
The Operating Manual describes the following R&S®ESPI models and options:
( R&S ESPI3 (1164.6407K03)
( R&S ESPI7 (1164.6407K07)
( R&S FSP-B6 (1129.8594.02)
( R&S FSP-B9 (1129.6991.02)
( R&S FSP-B10 (1129.8042.03)
( R&S FSP-B16 (1129.8042.03)
© 2009 Rohde & Schwarz GmbH & Co. KG
81671 Munich, Germany
Printed in Germany – Subject to change – Data without tolerance limits is not binding.
®
is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
R&S
Trade names are trademarks of the owners.
The following abbreviations are used throughout this manual:
®
ESPI is abbreviated as R&S ESPI.
R&S
R&S ESPI Documentation Overview
Documentation Overview
The documentation of the R&S ESPI consists of base unit manuals and option manuals. All manuals are provided in PDF format on the CD-ROM delivered with the
instrument. Each software option available for the instrument is described in a separate software manual.
The base unit documentation comprises the following manuals and documents:
• Quick Start Guide
• Operating Manual
• Service Manual
• Internet Site
• Release Notes
Apart from the base unit, these manuals describe the following models and options
of the R&S ESPI EMI Test Receiver. Options that are not listed are described in separate manuals. These manuals are provided on an extra CD-ROM. For an overview
of all options available for the R&S ESPI visit the R&S ESPI EMI Test Receiver
Internet site.
Base unit models
• R&S ESPI3 (9kHz to 3 GHz)
• R&S ESPI7 (9kHz to 7 GHz))
Options described in the base unit manuals:
• R&S FSP-B6 (TV and RF Trigger)
• R&S FSP-B9 (Tracking Generator)
• R&S FSP-B10 (External Generator Control)
• R&S FSP-B16 (LAN Interface,)
Quick Start Guide
This manual is delivered with the instrument in printed form and in PDF format on
the CD-ROM. It provides the information needed to set up and start working with the
instrument. Basic operations and basic measurements are described. Also a brief
introduction to remote control is given. More detailed descriptions are provided in
the Operating Manual. The Quick Start Guide includes general information (e.g.
Safety Instructions) and the following chapters:
Chapter 1 Front and Rear Panel
Chapter 2 Preparing for Use
Chapter 3 Firmware-Update and Installation of Firmware Options
Chapter 4 Basic Operation
Chapter 5 Basic Measurement Examples
Chapter 6 LAN Interface
Appendix A Printer Interface
Appendix B External Generator Control
Appendix C Brief Introduction to Remote Control
0.6 Operating Manual 1164.6607.12 - 02
R&S ESPI Documentation Overview
Operating Manual
This manual is a supplement to the Quick Start Guide and is available in PDF format
on the CD-ROM delivered with the instrument. To retain the familiar structure that
applies to all operating manuals of Rohde&Schwarz Test & Measurement instruments, the chapters 1 and 3 exist, but only in form of references to the corresponding Quick Start Guide chapters. The operating manual has the following chapters:
Chapter 1 Putting into Operation
see Quick Start Guide chapters 1 and 2.
Chapter 2 Getting Started
see Quick Start Guide chapter 5.
Chapter 3 Manual Operation
see Quick Start Guide chapter 4.
Chapter 4 Instrument Functions
forms a reference for manual operation of the R&S ESPI and contains a description of all instrument functions and their application.
Chapter 5 Remote Control - Basics
describes the basics for programming the R&S ESPI, command processing and the status reporting system.
Chapter 6 Remote Control - Description of Commands
lists all the remote-control commands defined for the instrument.
Chapter 7 Remote Control - Programming Examples
contains program examples for a number of typical applications of
the R&S ESPI.
Chapter 8 Maintenance and Instrument Interfaces
describes preventive maintenance and the characteristics of the
instrument’s interfaces.
Chapter 9 Error Messages
gives a list of error messages that the R&S ESPI may generate.
Index contains an index for the chapters 1 to 9 of the operating manual.
Service Manual
This manual is available in PDF format on the CD-ROM delivered with the instrument. It informs on how to check compliance with rated specifications, on instrument
function, repair, troubleshooting and fault elimination. It contains all information
required for repairing the R&S ESPI by the replacement of modules. The manual
includes the following chapters:
Chapter 1 Performance Test
Chapter 2 Adjustment
Chapter 3 Repair
Chapter 4 Software Update / Installing Options
Chapter 5 Documents
Operating Manual 1164.6607.12 - 02 0.7
R&S ESPI Documentation Overview
Internet Site
The Internet site at: R&S ESPI EMI Test Receiver provides the most up to date infor-
mation on the R&S ESPI.
The current operating manual at a time is available as printable PDF file in the
download area. Also provided for download are firmware updates including the
associated release notes, instrument drivers, current data sheets and application
notes.
Release Notes
The release notes describe the installation of the firmware, new and modified functions, eliminated problems, and last minute changes to the documentation. The corresponding firmware version is indicated on the title page of the release notes. The
current release notes are provided in the Internet.
0.8 Operating Manual 1164.6607.12 - 02
Certificate No.: 2004-39
This is to certify that:
Equipment type Stock No. Designation
ESPI3 1164.6407.03 EMI Test Receiver
ESPI7 1164.6407.07
ESPI-B2 1129.7498.02 Preselector
ESPI-B20 1155.1606.07 Extended Environment Specs
EC Certificate of Conformity
complies with the provisions of the Directive of the Council of the European Union on the
approximation of the laws of the Member States
- relating to electrical equipment for use within defined voltage limits
(2006/95/EC)
- relating to electromagnetic compatibility
(2004/108/EC)
Conformity is proven by compliance with the following standards:
EN61010-1 : 2001-12
EN55011 : 1998 + A1:1999 + A2:2002, Class B
EN61326 : 1997 + A1:1998 + A2:2001 + A3 : 2003
For the assessment of electromagnetic compatibility, instrument class B as well as immunity
to interference for operation in industry have been used as a basis.
Affixing the EC conformity mark as from 2004
ROHDE & SCHWARZ GmbH & Co. KG
Mühldorfstr. 15, D-81671 München
Munich, 2008-04-02 Central Quality Management MF-QZ / Radde
1164.6407.01 CE E-3
R&S ESPI Putting into Operation
1 Putting into Operation
For details refer to the Quick Start Guide chapter 1, “Front and Rear Panel” and
chapter 2, “ Preparing for Use”.
Operating Manual 1164.6607.12 - 01 1.1
R&S ESPI Putting into Operation
1.2 Operating Manual 1164.6607.12 - 01
R&S ESPI Getting Started
2 Getting Started
For details refer to the Quick Start Guide chapter 1, “Basic Measurement Examples”.
Operating Manual 1164.6607.12 - 02 2.1
R&S ESPI Getting Started
2.2 Operating Manual 1164.6607.12 - 02
R&S ESPI Manual Operation
3 Manual Operation
For details refer to the Quick Start Guide chapter 4, “Basic Operation”.
Operating Manual 1164.6607.12 - 02 3.1
R&S ESPI Manual Operation
3.2 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
4 Instrument Functions
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5
4.2 R&S ESPI Initial Configuration – PRESET Key . . . . . . . . . . . . . . . . . . . . . . 4.6
4.3 Mode Selection – Hotkey Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9
4.4 Return to Manual Operation – LOCAL Menu . . . . . . . . . . . . . . . . . . . . . . 4.10
4.5 Receiver Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11
4.5.1 Operation on a Discrete Frequency – FREQ Key . . . . . . . . . . . . . . . . . 4.14
4.5.2 Level Display and RF Input Configuration – AMPT Key . . . . . . . . . . . . 4.16
4.5.3 Setting the IF Bandwidth – BW Key . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.19
4.5.3.1List of Available Channel Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.21
4.5.4 Selection of the Measurement Function – MEAS Key . . . . . . . . . . . . . 4.22
4.5.4.1Selecting the Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.26
4.5.4.2Setting the Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.28
4.5.4.3AF Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.30
4.5.4.4Data Reduction and Peak List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.31
4.5.4.5Automatic Final Measurement with Threshold Scan . . . . . . . . . . . 4.33
4.5.4.6Selection of Detectors for Final Measurement . . . . . . . . . . . . . . . . 4.44
4.5.5 Frequency Scan and Time Domain Scan – SWEEP Key . . . . . . . . . . . 4.48
4.5.5.1Stepped Scan in the Frequency Domain . . . . . . . . . . . . . . . . . . . . 4.48
4.5.5.2Display of Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . 4.50
4.5.5.3Entry of Scan Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.50
4.5.5.4Running a Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.55
4.5.6 Triggering the Scan – TRIG Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.56
4.5.7 Marker Functions – MKR Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.58
4.5.8 Change of Settings via Markers – MKR-> Key . . . . . . . . . . . . . . . . . . . 4.59
4.5.9 Marker Functions – MKR FCTN Key . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.63
4.5.10 Selection and Setting of Traces – TRACE Key . . . . . . . . . . . . . . . . . . 4.64
4.5.10.1Selection of Trace Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.65
4.6 Analyzer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.71
4.6.1 Frequency and Span Selection – FREQ Key . . . . . . . . . . . . . . . . . . . . 4.71
4.6.2 Setting the Frequency Span – SPAN Key . . . . . . . . . . . . . . . . . . . . . . . 4.75
4.6.3 Level Display Setting and RF Input Configuration – AMPT Key . . . . . . 4.76
4.6.4 Setting the Bandwidths and Sweep Time – BW Key . . . . . . . . . . . . . . . 4.80
4.6.4.1Filter Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.85
4.6.4.2List of Available Channel Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.86
4.6.5 Sweep Settings – SWEEP Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.88
4.6.6 Triggering the Sweep – TRIG Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.90
4.6.7 Selection and Setting of Traces – TRACE Key . . . . . . . . . . . . . . . . . . . 4.98
Operating Manual 1164.6607.12 - 02 4.1
R&S ESPI Instrument Functions
4.6.8 Selection of Trace Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.98
4.6.8.1Selection of Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.105
4.6.8.2Mathematical Functions for Traces . . . . . . . . . . . . . . . . . . . . . . . 4.110
4.6.9 Recording the Correction Data – CAL Key . . . . . . . . . . . . . . . . . . . . . 4.110
4.6.10 Markers and Delta Markers – MKR Key . . . . . . . . . . . . . . . . . . . . . . 4.112
4.6.10.1Frequency Measurement with the Frequency Counter . . . . . . . 4.114
4.6.11 Marker Functions – MKR FCTN Key . . . . . . . . . . . . . . . . . . . . . . . . . 4.119
4.6.11.1Activating the Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.120
4.6.11.2Measurement of Noise Density . . . . . . . . . . . . . . . . . . . . . . . . . 4.121
4.6.11.3Phase Noise Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.122
4.6.11.4Measurement of the Filter or Signal Bandwidth . . . . . . . . . . . . . 4.125
4.6.11.5Measurement of a Peak List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.125
4.6.11.6AF Demodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.127
4.6.11.7Selecting the Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.129
4.6.12 Change of Settings via Markers – MKR-> Key . . . . . . . . . . . . . . . . . 4.129
4.6.13 Power Measurements – MEAS Key . . . . . . . . . . . . . . . . . . . . . . . . . 4.136
4.6.13.1Power Measurement in Time Domain . . . . . . . . . . . . . . . . . . . . 4.137
4.6.13.2Channel and Adjacent-Channel Power Measurements . . . . . . . 4.142
4.6.13.3Setting the Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . 4.152
4.6.13.4Measurement of Signal Amplitude Statistics . . . . . . . . . . . . . . . 4.166
4.6.13.5Measurement of Carrier/Noise Ratio C/N and C/No . . . . . . . . . 4.174
4.6.13.6Measurement of the AM Modulation Depth . . . . . . . . . . . . . . . . 4.176
4.6.13.7Measurement of the Third Order Intercept (TOI) . . . . . . . . . . . . 4.177
4.6.13.8Harmonic Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.180
4.6.13.9Measuring Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . 4.182
4.6.13.10Spectrum Emission Mask Measurement . . . . . . . . . . . . . . . . . 4.189
4.7 Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.206
4.7.1 Setup of Limit Lines and Display Lines – LINES Key . . . . . . . . . . . . . 4.206
4.7.1.1Selection of Limit Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.207
4.7.1.2Entry and Editing of Limit Lines . . . . . . . . . . . . . . . . . . . . . . . . . . 4.211
4.7.1.3Display Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.216
4.7.2 Configuration of Screen Display – DISP Key . . . . . . . . . . . . . . . . . . . 4.218
4.7.3 Instrument Setup and Interface Configuration – SETUP Key . . . . . . . 4.224
4.7.3.1External Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.227
4.7.3.2Control of V-Networks (LISNs) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.227
4.7.3.3Preamplification and Preselection (Option R&S ESPI-B2) . . . . . . 4.228
4.7.3.4Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.230
4.7.3.5Programming the Interface Configuration and Time Setup . . . . . 4.240
4.7.3.6System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.253
4.7.3.7Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.255
4.7.3.8Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.259
4.7.3.9External Noise Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.260
4.2 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
4.7.4 Saving and Recalling Data Sets – FILE Key . . . . . . . . . . . . . . . . . . . . 4.260
4.7.4.1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.260
4.7.4.2Operating Concept of File Managers . . . . . . . . . . . . . . . . . . . . . . 4.265
4.7.5 Measurement Documentation – HCOPY Key . . . . . . . . . . . . . . . . . . . 4.269
4.7.5.1Selecting Printer Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.272
4.8 Tracking Generator – Option R&S FSP-B9 . . . . . . . . . . . . . . . . . . . . . . . 4.276
4.8.1 Tracking Generator Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.276
4.8.2 Transmission Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.278
4.8.2.1Calibration of Transmission Measurement . . . . . . . . . . . . . . . . . . 4.278
4.8.2.2Normalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.280
4.8.3 Reflection Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.283
4.8.3.1Calibration of Reflection Measurement . . . . . . . . . . . . . . . . . . . . 4.284
4.8.4 Calibration Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.284
4.8.5 Frequency-Converting Measurements . . . . . . . . . . . . . . . . . . . . . . . . 4.286
4.8.6 External Modulation of the Tracking Generator . . . . . . . . . . . . . . . . . . 4.287
4.8.7 Power Offset of the Tracking Generator . . . . . . . . . . . . . . . . . . . . . . . 4.289
4.9 External Generator Control – Option R&S FSP-B10 . . . . . . . . . . . . . . . 4.290
4.9.1 External Generator Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.291
4.9.2 Transmission Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.292
4.9.2.1Calibration of Transmission Measurement . . . . . . . . . . . . . . . . . . 4.292
4.9.2.2Normalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.294
4.9.3 Reflection Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.297
4.9.3.1Calibration of Reflection Measurement . . . . . . . . . . . . . . . . . . . . 4.298
4.9.4 Calibration Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.298
4.9.5 Frequency-Converting Measurements . . . . . . . . . . . . . . . . . . . . . . . . 4.300
4.9.6 Configuration of an External Generator . . . . . . . . . . . . . . . . . . . . . . . . 4.301
4.9.7 List of Generator Types Supported by the R&S ESPI . . . . . . . . . . . . . 4.304
4.10 LAN Interface - Option R&S FSP-B16 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.309
4.10.1 NOVELL Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.309
4.10.2 MICROSOFT Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.309
4.10.3 Remote Data Transfer with TCP/IP Services . . . . . . . . . . . . . . . . . . 4.309
4.11 RSIB Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.311
4.11.1 Remote Control via RSIB Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . 4.311
4.11.1.1Windows Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.311
4.11.1.2UNIX Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.312
4.12 RSIB Interface Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.313
4.12.1 Overview of Interface Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.313
4.12.1.1Variables ibsta, iberr, ibcntl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.314
4.12.1.2Description of Interface Functions . . . . . . . . . . . . . . . . . . . . . . . 4.315
Operating Manual 1164.6607.12 - 02 4.3
R&S ESPI Instrument Functions
4.12.2 Programming via the RSIB Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 4.322
4.12.2.1Visual Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.322
4.12.2.2Visual Basic for Applications (Winword and Excel) . . . . . . . . . . 4.325
4.12.2.3C / C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.326
4.4 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Introduction
4.1 Introduction
All functions of the R&S ESPI and their application are explained in detail in this
chapter. The sequence of the described menu groups depends on the procedure
selected for the configuration and start of a measurement:
1. Resetting the instrument
– “R&S ESPI Initial Configuration – PRESET Key” on page 4.6
2. Setting the mode
– “Mode Selection – Hotkey Bar” on page 4.9
– “Return to Manual Operation – LOCAL Menu” on page 4.10
3. Setting the measurement parameters in receiver mode
– “Receiver Mode” on page 4.11
4. Setting the measurement parameters in analyzer mode
– “Analyzer Mode” on page 4.71
5. Basic functions for general settings, printout and data management
– “Setup of Limit Lines and Display Lines – LINES Key” on page 4.206
– “Configuration of Screen Display – DISP Key” on page 4.218
– “Instrument Setup and Interface Configuration – SETUP Key” on page 4.224
– “Saving and Recalling Data Sets – FILE Key” on page 4.260
– “Measurement Documentation – HCOPY Key” on page 4.269
6. Additional and optional functions
– “Tracking Generator – Option R&S FSP-B9” on page 4.211
– “External Generator Control – Option R&S FSP-B10” on page 4.290
– “LAN Interface - Option R&S FSP-B16” on page 4.309
The operating concept is described in the Quick Start Guide, chapter 4, “Basic Operation”.
The remote commands (if any) are indicated for each softkey. A detailed description
of the associated remote commands is given in chapter “Remote Control – Descrip-
tion of Commands”.
Operating Manual 1164.6607.12 - 02 4.5
R&S ESPI Instrument Functions
R&S ESPI Initial Configuration – PRESET Key
4.2 R&S ESPI Initial Configuration – PRESET Key
PRESET
Using the PRESET key, the R&S ESPI can be set to a predefined initial state.
The settings are selected in a way that the RF input is always protected against
overload, provided that the applied signal levels are in the allowed range for the
instrument.
The initial instrument state set by the PRESET key can be adapted to arbitrary
applications using the STARTUP RECALL function. With this function the STARTUP RECALL data set is loaded upon pressing the PRESET key. For further information refer to section “Saving and Recalling Data Sets – FILE Key” on
page 4.260.
Two predefined initial states can be selected in the SETUP side menu. Default state
is RECEIVER PRESET. The ANALYZER PRESET is compatible with the settings of
R&S ESPI EMI Test Receiver and R&S FSP Spectrum Analyzer. It facilitates programming of control software for several instrument types.
Pressing the PRESET key causes the R&S ESPI to enter its initial state according to
one of the following tables:
4.6 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
R&S ESPI Initial Configuration – PRESET Key
Table 4-4 RECEIVER SETUP of R&S ESPI
Parameter Settings
Mode Mixed (Bargraph in screen A und Spectrum in screen B)
Center frequency 100 MHz
Center frequency step size AUTO COARSE
Span 5 MHz
RF attenuation auto (10 dB minimum)
Reference level 87 dBµV (-20 dBm)
Level range 100 dB log
Level unit dBµV
Sweep time auto (5 ms / 140 ms / 600 ms for R&S ESPI-3/-7/-30)
Resolution bandwidth Bargraph 120 kHz / 6 dB, Analyzer auto (100 kHz / 3 dB)
Video bandwidth Bargraph 1 MHz, Analyzer auto (300 kHz)
FFT filters off
Span / RBW 50
RBW / VBW Analyzer 0,33
Sweep cont
Trigger free run
Trace 1 clr write, autopeak
Trace 2/3 blank
Detector Bargraph Average
Trace math off
Frequency offset 0 Hz
Reference level offset 0 dB
Reference level position 100 %
Grid abs
Cal correction on
Noise source off
Input RF
Display Split screen
Tracking generator (only with
option R&S FSP-B9)
External generator 1/2 (only
with option R&S FSP-B10)
Preamplifier (only with option
R&S ESPI-B2)
Preselector (only with option
R&S ESPI-B2)
off
off
off
off
Operating Manual 1164.6607.12 - 02 4.7
R&S ESPI Instrument Functions
R&S ESPI Initial Configuration – PRESET Key
Table 4-5 ANALYZER SETUP of R&S ESPI
Parameter Settings
Mode Spectrum
Center frequency 1,5 GHz / 3,5 GHz for R&S ESPI-3/-7
Center frequency step size 0.1 ×
Span 3 GHz / 7 GHz (R&S ESPI-3/-7)
RF attenuation auto (10 dB)
Reference level -20 dBm
Level range 100 dB log
Level unit dBm
Sweep time auto
Resolution bandwidth auto (3 MHz)
Video bandwidth auto (10 MHz)
FFT filters off
Span / RBW 50
RBW / VBW 0,33
Sweep cont
Trigger free run
Trace 1 clr write
Trace 2/3 blank
Detector auto peak
center frequency
Trace math off
Frequency offset 0 Hz
Reference level offset 0 dB
Reference level position 100 %
Grid abs
Cal correction on
Noise source off
Input RF
Display Full screen, active screen A
Tracking generator (only with
option R&S FSP-B9)
External generator 1/2 (only
with option R&S FSP-B10)
Preamplifier (only with option
R&S ESPI-B2)
Preselector (only with option
R&S ESPI-B2)
off
off
off
off
4.8 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Mode Selection – Hotkey Bar
4.3 Mode Selection – Hotkey Bar
For fast mode selection the R&S ESPI has keys located under the measurement
screen, the so-called hotkeys. These hotkeys are displayed depending on the
options installed on the instrument. According to the selected mode, the corresponding softkey menus are displayed (on the right side of the measurement screen).
In this section, only the hotkeys provided by the basic model are described. For
information on the other hotkeys refer to the corresponding option descriptions.
Fig. 4.1 Hotkey bar of the basic model
SPECTRUM
RECEIVER
MORE
SCREEN A /
SCREEN B
The SPECTRUM hotkey sets R&S ESPI to analyzer mode. For details on the softkey menus refer to section “Analyzer Mode” on page 4.71.
Remote command: INST:SEL SAN
INST:NSEL 1
The RECEIVER hotkey sets the R&S ESPI in the test receiver mode.
Remote command: INST:SEL REC
INST:NSEL 6
The MORE hotkey switches to side hotkey bar(s) and back to the main hotkey bar.
In the side hotkey bar(s), the hotkeys for the options are located. For further information refer to the descriptions of the corresponding options.
With the SCREEN A / SCREEN B hotkey two different settings can be selected on
the R&S ESPI in the FULL SCREEN display mode.
In the SPLIT SCREEN display mode the key switches between active diagram A
and B.
The key designation indicates the diagram which has been activated by means of
the key.
The currently active window is marked by or on the right of the diagram.
Remote command: DISP:WIND<1|2>:SEL A
Operating Manual 1164.6607.12 - 02 4.9
A
B
R&S ESPI Instrument Functions
Return to Manual Operation – LOCAL Menu
4.4 Return to Manual Operation – LOCAL Menu
LOCAL
The LOCAL menu is displayed on switching the instrument to remote control mode.
At the same time, the hotkey bar is blanked out and all keys are disabled except the
PRESET key.
The LOCAL softkey and the DISPLAY UPDATE ON/OFF softkey are displayed.
Depending on the setting of the DISPLAY UPDATE ON/OFF softkey, the diagrams,
traces and diplay fields are displayed or hidden. For further details on the DISPLAY
UPDATE ON/OFF softkey refer to Instrument Setup and Interface Configuration –
SETUP Key.
The LOCAL key switches the instrument from remote to manual operation, with the
assumption that the remote controller has not previously set the LOCAL LOCKOUT
function.
A change in the control mode consists of:
• Enabling the Front Panel Keys
Returning to manual operation enables all inactive keys and turns on the hotkey
bar. The softkey menu which is displayed is the main menu of the current mode.
• Inserting the measurement diagrams
The blanked diagrams, traces and display fields are inserted.
• Generating the message OPERATION COMPLETE
If, at the time of pressing the LOCAL softkey, the synchronization mechanism via
*OPC, *OPC? or *WAI is active, the currently running measurement procedure is
aborted and synchronization is achieved by setting the corresponding bits in the
registers of the status reporting system.
• Setting Bit 6 (User Request) of the Event Status Register
With a corresponding configuration of the status reporting system, this bit
immediately causes the generation of a service request (SRQ) which is used to
inform the control software that the user wishes to return to front-panel control.
This information can be used, e.g., to interrupt the control program so that the user
can make necessary manual corrections to instrument settings. This bit is set
each time the LOCAL softkey is pressed.
If the LOCAL LOCKOUT function is active in the remote control mode, the frontpanel PRESET key is also disabled. The LOCAL LOCKOUT state is left as soon
as the process controller de-activates the REN line or the GPIB cable is disconnected from the instrument.
4.10 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Receiver Mode
4.5 Receiver Mode
RECEIVER
The receiver mode is selected using the RECEIVER hotkey (see also section “Mode
Selection – Hotkey Bar” on page 4.9)
The mode is selected with the RECEIVER hotkey for displaying both subscreens or
with the MIXED hotkey for displaying one subscreen as the receiver. The
RECEIVER variant is described here. The description applies correspondingly to
MIXED (see also section “Mode Selection – Hotkey Bar” on page 4.9).
RECEIVER FREQUENCY
ADD TO PEAK LIST
CONTINUOUS BARGRAPH
SINGLE BARGRAPH
DETECTOR
! MAX PEAK
MIN PEAK
QUASIPEAK
AVE RAGE
CISPR AVERAGE
RMS
CISPR RMS
CISPR RBW UNCOUPLED
MEAS TIME
DEMOD
! DEMOD (ON OFF)
THRESHOLD SCAN
! THRESHOLD (ON OFF)
AM | FM
SQUELCH
EDIT PEAK LIST
NO OF PEAKS
NB/BB DISCR
MARGIN
FINAL MEAS TIME
AUTOMATIC FINAL
INTER ACTIVE
RUN SCAN
Side menu
ESH2-Z5 | ESH3-Z5 | ENV
4200 | ENV 216 | OFF
PRESCAN PHASES | FINAL
PHASES
!
!
RUN SCAN
Operating Manual 1164.6607.12 - 02 4.11
R&S ESPI Instrument Functions
Receiver Mode
FINAL MEAS! PEAK SEARCH
EDIT PEAK LIST
NO OF PEAKS
PEAKS SUBRANGES
MARGIN
FINAL MEAS TIME
AUTOMATIC FINAL
INTER ACTIVE
RUN FINAL MEAS
Side menu
ESH2-Z5 | ESH3-Z5 | ENV
4200 | ENV 216 | OFF
PRESCAN PHASES | FINAL
PHASES
RUN FINAL MEAS!
RUN PRE-SCAN+FINAL HOLD SCAN
STOP SCAN
RUN SCAN HOLD SCAN
STOP SCAN
!
!
!
Side menu
RECEIVER FREQUENCY
ADD TO PEAK LIST
CONTINUOUS BARGRAPH
SINGLE BARGRAPH
The RECEIVER hotkey selects the receiver mode (RFI reception) and activates the
menu for setting the receiver parameters.
4.12 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Receiver Mode
For description of the softkeys see the following menus:
RECEIVER FREQUENCY “Operation on a Discrete Frequency – FREQ
Key” on page 4.14
ADD TO PEAK LIST “Selection of the Measurement Function –
MEAS Key” on page 4.22
DETECTOR “Selecting the Detector” on page 4.26
MEAS TIME “Setting the Measurement Time” on
page 4.28
DEMOD “AF Demodulators” on page 4.30
THRESHOLD SCAN “Automatic Final Measurement with Thresh-
old Scan” on page 4.33
FINAL MEAS “Data Reduction and Peak List” on
page 4.31
RUN PRE SCAN+FINAL “Running a Scan” on page 4.55
RUN SCAN “Running a Scan” on page 4.55
Side menu
CONTUNOUOS BARGRAPH “Selection of the Measurement Function –
MEAS Key” on page 4.22
SINGLE BARGRAPH “Selection of the Measurement Function –
MEAS Key” on page 4.22
Remote command: INST REC
In the receiver mode the R&S ESPI measures the level at the set frequency with a
selected bandwidth and measurement time (see also “RES BW” on page 4.19 and
“MEAS TIME” on page 4.29). Signal weighting is by means of detectors (see also
“DETECTOR” on page 4.27).
The functions for data reduction and the control of line impedance simulating network are available in the THRESHOLD SCAN and FINAL MEAS submenus.
A frequency scan can be performed after setting the start and stop frequency and
the step width. The scan subranges can be defined in a table (DEFINE SCAN softkey).
The scan is started with the RUN SCAN softkey. In operating mode RECEIVER, the
RECEIVER hotkey directly opens the RECEIVER menu.
The R&S ESPI can be extended by a preselection with switchable preselection
(option Preselector ESPI-B2). When the option is installed, preselection is always
switched on in receiver mode.
Operating Manual 1164.6607.12 - 02 4.13
R&S ESPI Instrument Functions
Receiver Mode
4.5.1 Operation on a Discrete Frequency – FREQ Key
FREQ
RECEIVER
FREQUENCY
The FREQ key opens the FREQUENCY menu for setting the receive frequency in
manual operation and the frequency axis for scan display.
RECEIVER FREQUENCY
STEPSIZE
START
STOP
RUN PRE-SCAN+FINAL
RUN SCAN
! AUTO COARSE
AUTO FINE
STEPSIZE MANUAL
STEPSIZE = FREQ
The RECEIVER FREQUENCY softkey activates the entry field of the receiver frequency.
The tuning frequency has to be set to at least twice the IF bandwidth.
When the tuning frequency is lower than twice the IF bandwidth, the IF bandwidth is
automatically reduced so that this condition is met again.
If the frequency is increased again, the original IF bandwidth is restored (memory
function). The memory is cleared when the IF bandwidth is manually changed.
The resolution of the receive frequency is always 0.1 Hz.
Range: 9 kHz ≤ f
rec
≤ f
max
This softkey is also available in the RECEIVER / MEAS menu.
Remote command: FREQ:CENT 300 MHz
STEPSIZE
The STEPSIZE softkey opens a submenu for setting the step size of the receive frequency. The step size can be coupled to the set frequency or be manually set to a
fixed value. The softkeys of the submenu are mutually exclusive selection switches.
Only one switch can be activated at any one time.
AUTO COARSE If the AUTO COARSE softkey is activated, the receive frequency is set in coarse
steps. The 4th digit of the selected frequency is varied.
Remote command: --
AUTO FINE If the AUTO FINE softkey is activated, the receive frequency is set in fine steps. The
7th digit of the selected frequency is varied.
Remote command: --
STEPSIZE
MANUAL
The STEPSIZE MANUAL softkey activates the entry window for the input of a fixed
step size.
Remote command: FREQ:CENT:STEP 50 kHz
4.14 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Receiver Mode
STEPSIZE =
START
STOP
FREQ
The STEPSIZE = FREQ softkey sets the step size to a value equal to the receive
frequency.
This function is especially useful during measurements of the signal harmonic content, because, when entering the receiver frequency, the receiver frequency of
another harmonic is selected with each stroke of the STEP key.
Remote command: --
The START softkey opens a window where the start frequency of the scan diagram
can be entered.
The permissible value range for the start frequency is:
f
min
f
start
f
max
≤ f
start
≤ f
max
– 10 Hz
: start frequency
: maximum frequency
Remote command: :FREQ:STAR 20 MHz
The STOP softkey opens a window where the stop frequency of the scan diagram
can be entered.
The permissible value range for the stop frequency is:
f
+ 10 Hz ≤ f
min
f
: stop frequency
stop
f
: maximum frequency
max
stop
≤ f
max
RUN PRESCAN+FINAL
RUN SCAN
Remote command: :FREQ:STOP 2000 MHz
For details refer to the SWEEP menu, “RUN PRE-SCAN+FINAL” on page 4.55.
For details refer to the SWEEP menu, “RUN SCAN” on page 4.55.
Operating Manual 1164.6607.12 - 02 4.15
R&S ESPI Instrument Functions
Receiver Mode
4.5.2 Level Display and RF Input Configuration – AMPT Key
The AMPT key is used to set the input attenuation, the Preamplifier (only with option
ESPI-B2), the auto range function and the Display Unit.
In addition, the level display range for the scan can be set.
AMPT
RF ATTEN
MANUAL
RF ATTEN MANUAL
PREAMP (ON OFF)
10 DB MIN (ON OFF)
AUTO RANGE (ON OFF)
AUTOPREAMP (ON OFF)
UNIT! dBµV /dBm / dBµA / dBpW /dBpT
GRID RANGE LOG 100 dB
GRID RANGE LOG MANUAL
GRID MIN LEVEL
*) LN PREAMP ON OFF is only available with option R&S ESPI-B24
The RF ATTEN MANUAL softkey activates the attenuation entry field.
The attenuation can be set between 0 and 70 dB in 10 dB steps. Other entries are
rounded up to the next higher integer.
To protect the input mixer against inadvertent overload, 0 dB can only be
switched on when the 10 dB MIN softkey is switched off.
Remote command: INP:ATT 40 DB
Preamplifier
When equipped with the option ESPI-B2, Preselector, the R&S ESPI is provided
with a switchable preamplifier of 20 dB gain in the frequency range up to 3 GHz.
Switching on the preamplifier reduces the total mark figure of the R&S ESPI and
thus improves the sensitivity.
The disadvantage of a poorer large-signal immunity (intermodulation) is reduced by
the connected preselector. The signal level of the subsequent mixer is 20 dB higher
so that the maximum input level is reduced by the gain of the preamplifier. The total
noise figure of R&S ESPI is reduced from approx. 18 dB to approx. 10 dB when a
preamplifier is used.
The use of the preamplifier is recommended when measurements with a maximum
sensitivity are to be performed. On the other hand, if the measurement should be
performed at maximum dynamic range, the preamplifier should be switched off.
The gain of the preamplifier is automatically considered in the level display. The
preamplifier follows the preselection filters so that the risk of overdriving by strong
out-of-band signals is reduced to a minimum.
4.16 Operating Manual 1164.6607.12 - 02
R&S ESPI Instrument Functions
Receiver Mode
PREAMP
(ON OFF)
10 DB MIN
(ON OFF)
The PREAMP (ON OFF) softkey switches the preamplifier on and off.
Default value is OFF.
The softkey is only available with option R&S ESPI-B2, Preselector..
Remote command: INP:GAIN:STAT ON | OFF
The 10 DB MIN (ON OFF) softkey determines whether the 10 dB setting of the
attenuator may be used in the manual or automatic setting of the attenuator.
10 DB MIN ON is the default value, i.e. an RF attenuation of at least 10 dB is always
set on the R&S ESPI to protect the input mixer.
An attenuation of 0 dB cannot be set manually either. This avoids 0 dB being
switched on inadvertently, particularly when DUTs with high RFI voltage are measured.
The softkey is only available when the R&S ESPI is equipped with option ESPIB2, Preselector..
Remote command: INP:ATT:PROT ON | OFF
AUTO RANGE
(ON OFF)
AUTOPREAMP
(ON OFF)
The AUTO RANGE (ON OFF) softkey switches the autorange function on and off.
.
ON The attenuation is automatically set so that a good S/N ratio is
obtained without the receiver stages being overdriven.
OFF The attenuation is set manually.
Depending on the characteristics of the RF signal, the receiver may not utilize the
maximum possible dynamic range. Measurement results are still valid, however,
because it is ensured that performing measurements does not result in an overload.
The softkey is only available when the R&S ESPI is equipped with option ESPIB2, Preselector..
Remote command: INP:ATT:AUTO ON | OFF
The AUTOPREAMP (ON OFF) softkey turns the auto preamp function and or off.
.
ON The preamplifier is considered in the autorange procedure. The pream-
plifier is cut in when the RF attenuation is reduced to the minimum settable value.
OFF The preamplifier is not considered in the autorange procedure.
The softkey is only available when the R&S ESPI is equipped with option ESPIB2, Preselector..
Remote command: INP:GAIN:AUTO ON | OFF
Operating Manual 1164.6607.12 - 02 4.17
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