Rohde and Schwarz TMU91 Setup Manual

R&S®Tx9
For information only! This manual, dated April 25, 2014 reflects the technical status as of that date. There may have been technical changes since that time.
Transmitter System
Operating Manual
(E9é:2)
2109.9110.02 ─ 07
Operating Manual
© 2014 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
E-mail: 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.
The following abbreviations are used throughout this manual: R&S®XYZ1234 is abbreviated as R&S XYZ1234.
Quality management
Certied Quality System
ISO 9001
and environmental management
Sehr geehrter Kunde,
Sie haben sich für den Kauf eines Rohde & Schwarz Produk­tes entschieden. Sie erhalten damit ein nach modernsten Fer­tigungsmethoden hergestelltes Produkt. Es wurde nach den Regeln unserer Qualitäts- und Umweltmanagementsysteme entwickelt, gefertigt und geprüft. Rohde & Schwarz ist unter ande­rem nach den Managementsys­temen ISO 9001 und ISO 14001 zertifiziert.
Der Umwelt verpflichtet
Energie-efziente,
RoHS-konforme Produkte
❙ Kontinuierliche
Weiterentwicklung nachhaltiger Umweltkonzepte
ISO 14001-zertiziertes
Umweltmanagementsystem
Dear customer,
You have decided to buy a Rohde & Schwarz product. This product has been manufactured using the most advanced meth­ods. It was developed, manufac­tured and tested in compliance with our quality management and environmental manage­ment systems. Rohde & Schwarz has been certified, for exam­ple, according to the ISO 9001 and ISO 14001 management systems.
Environmental commitment
Energy-efcient products ❙ Continuous improvement in
environmental sustainability
ISO 14001-certied
environmental management system
Certied Environmental System
ISO 14001
Cher client,
Vous avez choisi d’acheter un produit Rohde & Schwarz. Vous disposez donc d’un produit fabriqué d’après les méthodes les plus avancées. Le dévelop­pement, la fabrication et les tests de ce produit ont été effec­tués selon nos systèmes de management de qualité et de management environnemental. La société Rohde & Schwarz a été homologuée, entre autres, conformément aux systèmes de management ISO 9001 et ISO 14001.
Engagement écologique
Produits à efcience
énergétique
❙ Amélioration continue de la
durabilité environnementale
❙ Système de management
environnemental certié selon
ISO 14001
1171.0200.11 V 05.01
1171020011
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
R&S®Tx9

Contents

Contents
1 Information about this Manual..............................................................9
2 Safety Instructions...............................................................................11
2.1 Safety Instructions for Transmitter Systems and Equipment................................ 11
2.2 General Safety Instructions....................................................................................... 12
2.2.1
2.3.1 Hazards from AC Supply Voltage................................................................................. 19
2.3.1.1 AC Power Supply.......................................................................................................... 19
2.3.1.2 Changing Fuses............................................................................................................ 19
2.3.2 Hazards from HighEnergy Electric Circuits..................................................................19
2.3.3 Hazards from RF Radiation...........................................................................................20
2.3.3.1 Obligation to Instruct Personnel.................................................................................... 20
2.3.3.2 RF Shielding..................................................................................................................20
2.3.3.3 Rules When Operating an Amplifier..............................................................................20
2.3.3.4 Rules When Working on an Open Amplifier..................................................................21
2.3.4 Conditions for Assembly Work on Cooling System.......................................................21
2.3.5 Safety Data Sheets for Hazardous Substances............................................................22
Safety Instructions.........................................................................................................12
2.3 Special Hazard Information........................................................................................19
3 Introduction to Operation....................................................................23
3.1 Operation via R&S TDU900........................................................................................ 23
3.1.1 Opening Display............................................................................................................23
3.1.2 Closing Display............................................................................................................. 23
3.1.3 Using Touchscreen Function........................................................................................ 23
3.2 Operation via Browser................................................................................................24
3.2.1 Connection Setup and Login.........................................................................................26
3.3 Structure of User Interface.........................................................................................26
3.3.1 Elements of User Interface............................................................................................26
3.3.2 Views.............................................................................................................................27
3.3.3 Basic Functions on Menu Bar....................................................................................... 28
3.3.3.1 Logbook........................................................................................................................ 29
3.3.3.2 Help...............................................................................................................................29
3.3.3.3 Local/Remote................................................................................................................ 29
3Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Contents
3.3.3.4 Login/Logout................................................................................................................. 29
3.3.3.5
3.3.3.6 Task View......................................................................................................................30
3.3.4 Navigation..................................................................................................................... 30
3.3.5 Input Fields....................................................................................................................30
3.3.6 Editors........................................................................................................................... 30
3.3.6.1 Numeric Editor.............................................................................................................. 31
3.3.6.2 Text Editor.....................................................................................................................31
3.3.7 Special Tasks................................................................................................................31
3.3.7.1 Finding an Error............................................................................................................ 31
3.3.7.2 Managing Users............................................................................................................ 32
3.3.8 Logbook........................................................................................................................ 32
3.3.8.1 Intelligent Filtering......................................................................................................... 32
3.3.8.2 Chronological View....................................................................................................... 33
3.3.8.3 Manual Filter (Filter/Options).........................................................................................35
3.3.8.4 Scroll Function.............................................................................................................. 36
Device View.................................................................................................................. 29
4 Device View Description......................................................................39
4.1 System Overview........................................................................................................ 39
4.1.1 Forward Power..............................................................................................................39
4.1.2 Reflected Power............................................................................................................40
4.1.3 Transmitter.................................................................................................................... 40
4.1.4 N+1 Redundancy.......................................................................................................... 41
4.1.4.1 Manual Switchover........................................................................................................41
4.1.4.2 Automatic Switchover....................................................................................................41
4.1.4.3 Configuring N+1 Automatic Function............................................................................ 41
4.2 Transmitter.................................................................................................................. 43
4.2.1 Automatic Switchover....................................................................................................44
4.2.1.1 Automatic Input Signal.................................................................................................. 44
4.2.1.2 Automatic Exciter Switchover........................................................................................47
4.2.2 Transmitter Status.........................................................................................................48
4.2.3 Amplifiers...................................................................................................................... 49
4.2.4 Rack.............................................................................................................................. 64
4.2.5 Output Stage................................................................................................................. 65
4Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Contents
4.3 Exciter DVB-T2............................................................................................................ 65
4.3.1
4.3.2 Setting Transmit Frequency and Output Power............................................................ 74
4.3.3 Signal Feed................................................................................................................... 75
4.3.3.1 Configuring Physical Inputs...........................................................................................75
4.3.3.2 Input Signal Switchover.................................................................................................80
4.3.4 Controlling Time of Transmission in Single-Frequency Networks (SFN)...................... 82
4.3.4.1 Settings......................................................................................................................... 84
4.3.5 Using Frequency Control.............................................................................................. 86
4.3.6 Precorrection at ATV.....................................................................................................88
4.4.1 Coder for DVB-T........................................................................................................... 92
4.4.2 Setting Transmit Frequency and Output Power............................................................ 96
4.4.3 Signal Feed................................................................................................................... 96
4.4.3.1 Configuring Physical Inputs...........................................................................................96
4.4.3.2 Input Signal Switchover...............................................................................................101
4.4.4 Controlling Time of Transmission in Single-Frequency Networks (SFN).................... 104
Coder for DVB-T2......................................................................................................... 65
4.4 Exciter DVB-T.............................................................................................................. 92
4.4.4.1 Settings....................................................................................................................... 106
4.4.5 Using Frequency Control............................................................................................ 108
4.4.6 Precorrection...............................................................................................................110
4.5 Exciter ISDB-T........................................................................................................... 116
4.5.1 Coder for ISDB-T........................................................................................................ 116
4.5.2 Setting Transmit Frequency and Output Power.......................................................... 121
4.5.3 Signal Feed................................................................................................................. 122
4.5.3.1 Configuring Physical Inputs.........................................................................................122
4.5.3.2 Input Signal Switchover...............................................................................................127
4.5.4 Controlling Time of Transmission in Single-Frequency Networks (SFN).................... 129
4.5.4.1 Settings....................................................................................................................... 132
4.5.5 Using Frequency Control............................................................................................ 134
4.5.6 Precorrection...............................................................................................................136
4.6 Exciter ATSC............................................................................................................. 142
4.6.1 Coder for ATSC...........................................................................................................142
4.6.2 Setting Transmit Frequency and Output Power.......................................................... 144
5Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Contents
4.6.3 Signal Feed................................................................................................................. 145
4.6.3.1
4.6.3.2 Input Signal Switchover...............................................................................................150
4.6.4 Controlling Time of Transmission in Single-Frequency Networks (SFN).................... 152
4.6.4.1 Settings....................................................................................................................... 155
4.6.5 Using Frequency Control............................................................................................ 157
4.6.6 Precorrection...............................................................................................................160
4.7.1 Coder for DTMB.......................................................................................................... 165
4.8.1 Coder for ATV............................................................................................................. 169
4.8.2 Setting Transmit Frequency and Output Power.......................................................... 175
4.8.3 Signal Feed................................................................................................................. 176
4.8.4 Using Frequency Control............................................................................................ 179
4.8.5 Precorrection at ATV...................................................................................................181
4.9.1 Coder for DAB.............................................................................................................187
Configuring Physical Inputs.........................................................................................145
4.7 Exciter DTMB.............................................................................................................165
4.8 Exciter ATV................................................................................................................ 169
4.9 Exciter DAB............................................................................................................... 187
4.9.2 Using Frequency Control............................................................................................ 189
4.9.3 Precorrection...............................................................................................................191
4.10 Exciter FM.................................................................................................................. 197
4.10.1 Coder for FM............................................................................................................... 197
4.10.2 Setting Transmit Frequency and Output Power for FM...............................................199
4.10.3 Signal Feed................................................................................................................. 200
4.10.3.1 Configuring Physical Inputs.........................................................................................200
4.10.3.2 Input Signal Switchover...............................................................................................203
4.10.4 Using Frequency Control............................................................................................ 204
4.11 Switchless Combiner................................................................................................207
4.11.1 Settings....................................................................................................................... 208
4.12 Cooling System......................................................................................................... 210
4.12.1 Liquid Cooling (HighPerformance).............................................................................210
4.12.1.1 Configuring Switching Thresholds (Pressure) and Flow Volumes.............................. 210
4.12.1.2 Configuring Fans and Pumps......................................................................................213
4.12.1.3 Status of Cooling System............................................................................................214
6Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Contents
4.12.2 Small Cooling – Simplified Liquid Cooling System (FM Transmitter)..........................214
4.12.2.1
4.12.2.2 Status.......................................................................................................................... 215
4.12.3 Air Cooling (MediumPower)....................................................................................... 217
Configuration of Cooling System.................................................................................215
5 Task View Description....................................................................... 219
5.1 Basic Settings........................................................................................................... 219
5.2 Parameters: Input Configuration............................................................................. 227
5.3 System Control..........................................................................................................229
5.3.1 Simple Network Management Protocol (SNMP)......................................................... 229
5.3.1.1 General....................................................................................................................... 229
5.3.1.2 Settings on Transmitter End........................................................................................229
5.3.1.3 Settings on Manager End............................................................................................230
5.3.1.4 Which MIBs Must Be Used?....................................................................................... 232
5.3.1.5 Which OIDs from a MIB Must Be Used?.....................................................................233
5.3.1.6 Setting Alarms.............................................................................................................234
5.3.1.7 Testing the SNMP Communications........................................................................... 235
5.3.1.8 Setting Alarms Using SNMP....................................................................................... 236
5.3.1.9 Type plates - the ENTITY MIB.................................................................................... 238
5.4 Maintain Software..................................................................................................... 240
5.4.1 Software Update......................................................................................................... 240
5.4.2 Backup/Restore...........................................................................................................242
5.5 Options.......................................................................................................................244
6 Operating the Device Manager......................................................... 247
6.1 Basic Settings........................................................................................................... 247
7 User Administration...........................................................................257
7.1 Creating New User Profiles...................................................................................... 257
7.2 Changing User Profiles (Users and Access Rights)..............................................257
7.3 Deleting User Profiles...............................................................................................258
7.4 Closing Active Sessions.......................................................................................... 258
7Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Information about this Manual

1 Information about this Manual

This manual is part of the documentation for the R&S THU9 transmitter family from Rohde & Schwarz. The individual manuals for the transmitter family have a modular structure and complement each other.
Structure
The system manual, which is the central and overarching part of the overall documen­tation, describes all the steps involved in installing a transmitter.
Operation of the transmitter system after installation and the steps required to put the system into operation are described in the operating manual.
The service manual describes all maintenance, troubleshooting and service tasks that customers can carry out themselves. At certain points in the transmitter manual, the reader is referred to the appropriate operating manual or service manual.
Contents
The manuals for the transmitter family describe all activities required for installation, startup, operation, maintenance, troubleshooting and servicing of the transmitter and its component parts. The appendix contains the interface descriptions and the techni­cal documentation.
Safety
All skilled personnel working with a transmitter or its components have a duty to read the associated manuals and to follow the safety measures described in the section "Safety" and given at appropriate points in the manual. It must be ensured that the transmitter and the individual components of the transmitter are used only for their intended use. All activities connected with the transmitter or individual transmitter com­ponents must be carried out by skilled personnel. If activities require additional skills and qualifications, this is indicated at the appropriate points in the manual.
Symbols and notation
The "warning triangle" symbol refers the reader to potential hazards. The degree of danger is indicated by different signal words next to the warning symbol.
Instructions are given in numbered steps. All other formatting options are intended to improve clarity and are selfexplanatory.
9Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Operation via R&S TDU900

3 Introduction to Operation

The R&S TDU900 is a display unit with a touchscreen function and a graphical user interface for configuring Tx9 transmitter systems.

3.1 Operation via R&S TDU900

3.1.1 Opening Display

When in the idle state, the display is inside the R&S TDU900 operating unit.
Unlock the display by pressing firmly on the trapezoidal area.
1.
2. The display slowly slides forward out of the instrument.
3. Tilt the display until you have reached the most ergonomically comfortable angle for operation.

3.1.2 Closing Display

1. Tilt the display to a horizontal position until you feel the display engage.
2. Push the display all the way into the R&S TDU900 housing until the display engages in the transport lock.
3. The display illumination automatically switches off in this state.
Tip: Close the operating unit during long periods of inactivity to prolong the service life of the backlighting.

3.1.3 Using Touchscreen Function

The display has a touchscreen function for operating all of the transmitter functions.
Using sharpedged objects can damage or destroy the surface. Therefore only use your finger to operate the touchscreen.
1. A light touch on a button is enough to trigger a user action.
2.
A button lights up orange for as long as your finger remains there. The action is not carried out until you remove your finger from the button.
23Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Operation via Browser
Tip: To cancel an inadvertently selected action, slide your finger to the side away from the button highlighted orange and then lift your finger off the touchscreen.

3.2 Operation via Browser

The graphical user interface (GUI) of the Tx9 transmitter series has been implemented in JAVA to ensure optimum user experience. Java technology provides maximum com­patibility between different versions of operating systems and browsers.
Supported operating systems
Windows XP, Windows Vista (32 bit version)
Windows 7 (32 bit and 64 bit version)
Windows 8 (32 bit and 64 bit version)
Supported browsers
Google Chrome
Mozilla Firefox
Internet Explorer 7
Internet Explorer 8
Internet Explorer 9 (32 bit version)
Internet Explorer 10 (32 bit and 64 bit desktop version)
Supported JAVA virtual machines
Oracle (previously: Sun) JRE 7 in 32 bit version
Troubleshooting
You can ensure troublefree operation of the GUI in a browser by installing the browser and the Java VM with their default settings on a computer configured with its factory settings.
The following solutions are available if the computer settings differ from the standard installation and there are problems:
The 64 bit version of Internet Explorer 9 is not supported
The 32 bit version, which is also installed, must be used
Use another browser, such as Google Chrome or Mozilla Firefox.
Internet Explorer 10 is to be used on a 64 bit operating system (Windows 7/8):
"Enhanced Protection Mode" must be disabled in the browser under "Tools > Options > Advanced" (this is the default setting).
Windows 8 Modern UI (previously: Metro) does not support Java.
Start the desktop version of Internet Explorer 10 from the desktop.
Start Google Chrome or Firefox from a link in Modern UI.
The error message "Application blocked by security settings" appears on the login
page.
24Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Operation via Browser
Set the security level to "High" in the Java Control Panel and restart the browser.
Only a 64 bit Java runtime environment (JRE) is installed.
Remove the 64 bit JRE and install the 32 bit version.
A 64 bit JRE is installed and required by another application (unlikely)
Install a 32 bit JRE to run in parallel with the 64 bit version.
You can determine the Java version (32 or 64 bit) as follows:
Open an input prompt window (Start > Run > Open, insert "cmd" and press <OK>)
Enter: java -d32 -version
The version number is shown if a 32 bit JRE is installed, otherwise an error mes-
sage appears.
Java security
In order to ensure the optimum protection against malicious software (malware), the user interface for the Tx9 transmitter series has been implemented in Java. Java tech­nology eliminates the need to run potentially unsafe ActiveX or Flash plugins in your browser. Java offers numerous security functions:
Java security settings
The security level in the Java Control Panel should be set to "High". A correspond­ing security warning appears then appears when opening a website with Java con­tents; you have to acknowledge this message. This prevents Java programs from untrusted websites from being started unintentionally.
Detecting a secure browser
The Java version installed on the computer should be displayed at the bottom left corner of the login page only after the security notice for running Java code has been confirmed. If the Java version is displayed without confirming the security notice, then you are using an unsecured browser or an outdated version of Java on your computer.
Detecting the right web server
The security notice for running the Java code shows the IP address of the transmit­ter that loaded the Java code to the browser.
Transmitters in the Tx9 series are protected against malware by various security meas­ures. Nevertheless, it is important to follow this general information on security to pro­tect other computers in the same network against malware:
Always keep your browser updated to the latest version!
Always update your Java runtime environment to the most recent version immedi-
ately after starting your browser.
Avoid using unsecured browsers, such as MS Internet Explorer 7.
Always use a firewall to display Internet pages from servers outside your LAN.
The transmitter should be accessible within its protected intranet at all times. If this
is not technically feasible, take additional measures to secure communications between the transmitter and browser (e.g. via a VPN).
25Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface

3.2.1 Connection Setup and Login

1. Create a physical network connection to the transmitter. The following options are available:
a) Remote access via WAN (Wide Area Network) b) Local access directly to a transmitter using a LAN cable
2. Start the browser and enter the following information in the address bar:
a) IP address of the transmitter
The website for operating the transmitter is called (login page).
3. Enter your user name and password.
Note: The following login information is preconfigured at the factory
User name: Query
Password: 1234
User name: Operation
Password: 1234
User name: Maintenance
Password: 1234
User name: Configuration
Password: 1234
Change the user names and passwords after logging in for the first time chap-
ter 3.3.7.2, "Managing Users", on page 32.
After successfully logging in, the actual user interface is displayed.

3.3 Structure of User Interface

3.3.1 Elements of User Interface

The user interface is composed of the following elements:
Menu bar:
The menu bar provides access to the most important functions.
System status:
This display provides a constantly visible, general overview of the entire system status.
Path bar:
The path bar shows the current position within the menu structure and provides the ability to quickly return to higher menu levels.
Working area:
The various tasks and configuration steps are carried out in the working area.
26Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
1 = Menu bar 2 = System status 3 = Path bar 4 = Working area

3.3.2 Views

The user interface provides two different views of the transmitter system:
Device View
Task View
Device View
In this view, all of the transmitter's functions are structured in the form of block dia­grams. All parameters relevant to operation are accessible.
27Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
Fig. 3-1: Hierarchical structure of a transmitter system
1 = View at transmitter system level 2 = View at single transmitter level 3 = View at exciter level
Task View
This view combines certain, frequently recurring tasks. A task includes exactly those crossinstrument parameters which are required for working on this task. All of the parameters relevant to startup and maintenance are accessible.
Certain parameters are only accessible in the Task View.

3.3.3 Basic Functions on Menu Bar

All of the functions of a R&S TDU900 required for basic operation of a transmitter are combined on the menu bar.
The following functions are available:
Logbook
Help
Local/Remote
Login/Logout
28Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View
Task View.
Introduction to Operation
Structure of User Interface
3.3.3.1 Logbook
The logbook is used for logging all system events and for troubleshooting and error analysis.
3.3.3.2 Help
This button is used to activate the help function. The following steps must be per­formed:
Press the Help button.
1.
All of the elements for which help information is available are identified by a blue frame.
2. Select the desired element.
The corresponding help information is shown in a separate window.
3.3.3.3 Local/Remote
The transmitter can be operated via both local access and via remote access.
The Local/Remote button allows you to toggle between the two types of access.
The transmitter can be switched from remote operation to local operation from at any time.
For safety reasons, remote operation is not possible if the system is currently being operated locally.
The current status (L = Local, R = Remote) is shown directly on the Local/Remote but­ton. The corresponding status of each transmitter is shown individually for multitrans­mitter systems.
3.3.3.4 Login/Logout
The login dialog allows a user to log in or log out of the system.
3.3.3.5 Device View
This button is used to switch to the Device View.
29Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
3.3.3.6 Task View
This button is used to switch to the Task View.

3.3.4 Navigation

The Device View is used to navigate through the transmitter menus. Pressing one of the visibly raised block diagram elements allows you to navigate further into the trans­mitter structure. Parameters that may be spread out over multiple tabs are located on the lowest menu level. A path bar is shown at the bottom of the screen. :
This has two functions:
Displaying the current menu level
Returning to higher menu levels

3.3.5 Input Fields

Additional information regarding the editability of respective parameters is visualized using icons on the display and input fields. The various display forms have the follow­ing meaning:
This value can be edited without restriction.
This value can be edited, but has no effect in the current configuration.
This value has been changed and has not yet been stored in a preset.
This value cannot be edited with the user rights currently in effect.

3.3.6 Editors

All of the functions of a R&S TDU900 required for basic operation of a transmitter are combined on the menu bar.
The following functions are available:
30Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
3.3.6.1 Numeric Editor
The numeric editor features the following functions.
1 = By pressing one of these buttons, the value is changed directly in the display without the use of the enter
button. 2 = The value entered using the numeric keypad is accepted by the system by pressing this button. 3 = Pressing this button discards all of the changes made in this window and restores the original value.
Violating the allowed value ranges causes an error message to appear and disables the input elements (Increase/Decrease/Enter).
3.3.6.2 Text Editor
The text editor allows letters, digits and special characters to be entered.

3.3.7 Special Tasks

3.3.7.1 Finding an Error
There are two ways of locating an error:
Block diagrams
You can use the traffic light signaling of the elements in the block diagrams to find the cause of an error in just a few steps, as long as the error is currently active.
31Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
Valuable information about an error's cause and tips for correcting the error can be retrieved using the help function of the respective error message.
Logbook
Complex error situations including behavior over time can be analyzed using the logbook. The help function again provides a multitude of valuable information.
3.3.7.2 Managing Users
User management is only available if the R&S TDU900 is operated using a browser. The following login must be selected for this purpose:
User name: Superuser
Password: 1234
For more details, see chapter 7, "User Administration", on page 257

3.3.8 Logbook

All system events are recorded in the logbook. The following functions are available for simplifying troubleshooting and error analysis:
Intelligent filtering
Events are intelligently prefiltered based on the context of the menu currently open.
Chronological view
Events are shown in their chronological order. Associated events are marked accordingly.
Manual filter (Filter and Options)
Events or event groups can be chosen selectively with the help of specific criteria.
Scroll function
Enables fast navigation in long event lists
.
3.3.8.1 Intelligent Filtering
Depending on which menu is used to open the logbook, only events relevant in the context of the respective menu are displayed. These filters significantly increase clarity in the logbook.
System overview
Opening in the system overview: With MultiTX and N+1 systems, shows all of the events affecting the core components (e.g. cooling, N+1 automatic switchover) as well as the most important messages from individual transmitters within the sys­tem. With SingleTX systems, all of the detailed messages from the transmitter are also shown.
Transmitter level:
Opening in a transmitter-specific menu: Shows in detail all of the events that affect the respective transmitter (incl. exciters).
32Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
Depending on which menu is used to open the logbook, only events relevant in the context of the respective menu are displayed. These filters significantly increase clarity in the logbook.
Exciter level
Shows in detail all of the events that affect the respective exciter.
A total of up to 500 events is logged in the logbook.
3.3.8.2 Chronological View
All of the event messages are listed here in strictly chronological order. The most recent messages are always shown at the top of the list.
Fig. 3-2: Logbook – chronological view
A thread consists of a group of messages that refer to the same event. The color of the thread is determined by the most critical message within the thread. Clicking a thread marker opens a window containing the associated messages.
33Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
Fig. 3-3: Logbook – thread
1 = Thread marker 2 = Click to open detail view
For most messages there is an entry indicating when the message occurred and when it disappeared.
Each entry consists of the following information:
Alarm level
Error
Error no longer present/remedied
Warning
Warning no longer present
Info
Error message text
System component (control, amplifier, exciter, etc.)
Time
Clicking an entry within the thread view displays a detailed description with the follow­ing contents.
34Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
From: / To:
Displays the time when an event starts or ends.
State:
Indicates whether an event is still active or already remedied.
Duration:
Indicates how long an event was active.
Component:
Indicates the system components affected by an event.
Description:
Displays a detailed description of an event.
3.3.8.3 Manual Filter (Filter/Options)
Fig. 3-4: Logbook – filter/options
The filter function allows filtering of the messages according to the following criteria:
Level filter:
35Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
The messages can be filtered selectively according to individual or multiple levels (Info | Warning | Fault) at the same time by selecting/deselecting the checkboxes "Show Infos"
, "Show Warnings" and "Show Faults". Selecting the "Show open issues only" checkbox will cause only messages that are still active to be displayed, in other words, messages that still have not been rem­edied,
Component filter:
The messages can be filtered selectively according to individual or multiple system components (System | Exciter A/B | Output Stage) at the same time by selecting/ deselecting the checkboxes.
Options:
The following options are available: – Clear logbook
"Clear Logbook" is used to completely delete the contents of the logbook.
Restore logbook
"Restore Logbook" is used to restore the logbook after it has been inadvertently deleted.
Messages
The "Messages" display shows the number of entries in the logbook.
Close
"Close" is used to close the entire filter function.
3.3.8.4 Scroll Function
The scroll function enables navigation within a long event list and the selection and detailed view of specific events.
36Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Introduction to Operation
Structure of User Interface
Fig. 3-5: Scroll functions
1 = Scroll box 2 = Scroll thumb 3 = Entry up 4 = Page up 5 = Entry down 6 = Page down
Clicking inside the scroll box moves the "scroll thumb" directly to the corresponding position.
Entry down: This button is used to scroll down by one entry in the direction of the
oldest date.
Entry up: This button is used to scroll up by one entry in the direction of the most
recent date.
Page down: This button is used to scroll by one page at a time in the direction of the
oldest date.
Page up: This button is used to scroll by one page at a time in the direction of the
most recent date.
37Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View Description
System Overview

4 Device View Description

4.1 System Overview

The screenshot below shows the Device View Home menu view. It represents the transmitter system level. The function of the individual buttons and the meaning of spe­cific parameters are explained in the following chapters.
Fig. 4-1: Device View Home menu view

4.1.1 Forward Power

Path:Device View Home > TX An
The "Forward Power" field shows the forward power of the transmitter system in kW. This field lights up green provided that the forward power is above the userselectable warning threshold. If the forward power drops to the warning level, the field lights up yellow. If the forward power drops below the userselectable fault threshold, the field lights up red.
Pressing the green area opens the "Power and Limits" view. The following userselect­able values are displayed in the Forward Power field:
Power (in percent)
Forward power: can be set between 0 % and 130 %. The nominal transmitter power corresponds to 100 %.
Warning Limit (in dB)
Warning threshold: can be set between 0 dB and 20 dB.
39Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View Description
System Overview
Fault Limit (in dB)
Fault threshold: can be set between 0 dB and 20 dB.
RF Fail Timeout (in s).
Delay time: can be set between 0 s and 10 s. This is the time between undershoot­ing of the "Fail Limit" fault threshold and indication of the fault in the transmitter sta­tus display.

4.1.2 Reflected Power

Path:Device View Home > TX An
The "Reflected Power" field indicates the reflected power of the transmitter system in W. This field lights up green provided that the reflected power is below the userselect­able warning threshold. If the reflected power exceeds this threshold, the field lights up yellow. If the reflected power exceeds the userselectable fault threshold, the field lights up red.
Pressing the green area opens the "Power and Limits" view. The following userselect­able values are displayed in the Forward Power field:
Warning Limit (in dB)
Warning threshold: can be set between 28 dB and 17 dB.
Fault Limit (in dB)
Fault threshold: can be set between 17 dB and 14 dB.

4.1.3 Transmitter

The icons and buttons for the TX A1 to TX An and TX B transmitters (depending on the system configuration) are shown in the "Device View Home" menu overview.
The function of the buttons is explained in the next chapter, see chapter 4.2, "Transmit-
ter", on page
Name Description Value range Access right
Program On Switch used to switch the components in the program path
of the transmitter on and off.
Reserve On Switch used to switch all components in the standby path of
the transmitter on and off (standby exciter with "dual drive" redundancy concept and standby output stage with "active PA Reserve" redundancy concept).
Reset Faults Switch used to reset all faults stored in the transmitter.
Stored faults are: Reflection Fail.
Resetting stored faults can cause automatic redundancy functions, which are currently in the switched-over state, to switch back to their original preselected state.
43.
Off; On Operation
Off; On Operation
Operation
40Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View Description
System Overview
Program
The currently active program 1 can be switched off using the "Program 1 – ON/OFF" button.

4.1.4 N+1 Redundancy

The task of the N+1 automatic function is to provide a B standby transmitter for up to eight A transmitters. This B transmitter takes over the program of an A transmitter if an A transmitter signals a fault. The output of the B transmitter is normally connected to a dummy antenna. The B transmitter is connected to an antenna by the N+1 automatic function as soon as the B transmitter takes over the program of the A transmitter.
4.1.4.1 Manual Switchover
Manual switchover of a program from an A transmitter to the B transmitter is performed by connecting the A transmitter concerned to the dummy antenna (button: To Load on the corresponding A transmitter). As a result of this switchover, a) the A transmitter becomes the standby transmitter for the B transmitter and b) the B transmitter is now no longer available as the standby transmitter for other A transmitters (exception: prior­ity control).
4.1.4.2 Automatic Switchover
If the N+1 automatic function is active and ready for operation and the A transmitter is available for the N+1 automatic function, a fault in the A transmitter causes the pro­gram to switch over to the B transmitter. The N+1 automatic function signals the switchover by changing its status to "changed". The user can now either acknowledge the switchover by pressing the "Accept changeover" key and adopt it as the new oper­ating state, or attempt by pressing the "Reset Faults" key to reset the N+1 automatic function to the original state and to delete the fault which caused the switchover.
4.1.4.3 Configuring N+1 Automatic Function
The switching behavior of the N+1 automatic function with regard to checkout times and automatic switchback can be configured according to individual requirements. Fur­thermore, for the B transmitter it is possible to define the A transmitter from which the program settings are to be adopted when the B transmitter operates as a standby transmitter.
Configuring ProgramSpecific Settings
The B transmitter must store all programspecific settings of all A transmitters internally so that they can be activated immediately in the event of a fault. Programspecific set­tings are all settings which directly affect the signal path through the transmitter, i.e. settings for the coder, the exciter inputs and outputs, the transmit frequency and the output power. The programspecific settings are made at the A transmitters and stored using the menu item "Save Preset" in the Task View of the A transmitter. The settings
41Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View Description
System Overview
stored for the A transmitters are synchronized with the B transmitter automatically even if the B transmitter was switched off when the settings were stored. If the programspe­cific settings are changed at A transmitters without these settings being stored as pre­sets, the changes will not be available on the B transmitter in the event of a switchover. Presets can only be stored on the A transmitters.
Configuring PowerSpecific Settings
All settings which have been stored on an A transmitter as presets and synchronized with the B transmitter can be overwritten individually in the B transmitter. This can be used to calibrate the power test points of the B transmitter to the frequency and output power of the respective A transmitter. To do so, the "Program Settings" of the A trans­mitter concerned must be activated in the B transmitter ("Load Program Settings") and then the corresponding settings must be made in the menus of the B transmitter. Finally, the changed settings must be stored in the B transmitter ("Save Tx B Set- tings"). This must be repeated for all programs that the B transmitter can take over.
Settings that have been changed directly at the B transmitter are no longer synchron­ized with the B transmitter using the "Save Preset" function on the A transmitters. It is therefore recommended to overwrite the preset settings of the A transmitters at the B transmitter only for purposes of calibrating the power test points, and never to make programspecific settings directly at the B transmitter.
If a setting has been inadvertently changed on the B transmitter and stored for an A transmitter, automatic synchronization can be reactivated for this setting value in the following way:
On the B transmitter, set the setting value to the same value as on the A transmit-
ter.
Press "Save Tx B Settings" in the menu of the N+1 automatic function
This setting value is now synchronized again together with all programspecific setting values of the A transmitter.
"N+1 Automatic" parameters
Path: "Device View (Home)"
Name Description Value range Access right
Automatic (Auto Switch)
Guard Time (Auto Switch)
Used to activate the n+1 automatic function. If the n+1 automatic func­tion is active, a fault within an A transmitter causes a switchover and the program of the A transmitter is taken over by the standby B trans­mitter.
Checkout time which must pass before an A transmitter is replaced by the standby B transmitter. A long Guard Time suppresses switchover operations caused by brief faults, but also reduces the availability of the program.
> "Automatic" > "n+1 Automatic"
On, Off Read / Write
(Operation)
0 s to 60 s Read / Write
(Maintenance)
42Operating Manual 2109.9110.02 ─ 07
R&S®Tx9
Device View Description
Transmitter
Name Description Value range Access right
Switch Mode (Auto Switch)
Load Program Settings (Auto Switch)
Save Tx B Set­tings (Auto Switch)
Automatic (Sta­tus)
Tx B is Reserve for (Status)
RF Switch (Sta­tus)
Used to define the switching behavior of the N+1 automatic function. Single switch: Switchover of an A transmitter to the B transmitter can occur once only. Multiple switch: Following a switchover operation, the system can switch back to the A transmitter automatically when the A transmitter no longer signals a fault but the B transmitter indicates a fault. If priority control is active, this switch should be set to Multiple Switch.
Used to load the programspecific settings of an A transmitter to the B transmitter.
Used to save settings, which have been changed relative to the loaded A transmitter, in the B transmitter.
Indicates the status of the N+1 automatic function by means of three elements. If the N+1 automatic function is on, it can be "ready"/"not ready" and at the same time "changed"/"not changed".
If a switchover operation has taken place, this indicates which program of an A transmitter the B transmitter has taken over.
Indicates a fault if in the event of a switchover one of the RF switches could not be turned correctly or if one of the jumpers has not been positioned correctly on the patch panel (if used).
Single, Multiple Read / Write
(Maintenance)
Tx A1, Tx A2, Tx A3, Tx A4, Tx A5, Tx A6, Tx A7, Tx A8
On, Off, Ready, Not Ready, Changed
Tx A1, Tx A2, Tx A3, Tx A4, Tx A5, Tx A6, Tx A7, Tx A8
Ready / Not Ready
Read / Write
Read Only
Read Only
Read Only

4.2 Transmitter

The screenshot below shows the Transmitter menu view. It represents the single trans­mitter level. The function of the individual buttons and the meaning of specific parame­ters are explained in the following chapters.
43Operating Manual 2109.9110.02 ─ 07
Loading...
+ 98 hidden pages