Rohde & Schwarz R&S SMBVB-K151 User manual

R&S®SMBVB-K151/-K152/-K153
ILS/VOR/DME
User Manual
1178917802
Version 08
(;ÜéÜ2)

This document describes the following software options:
●R&S®SMBVB-K151 ILS (1423.8120.xx)
●R&S®SMBVB-K152 VOR (1423.8137.xx)
●R&S®SMBVB-K153 DME (1423.8143.xx)
This manual describes firmware version FW 5.30.047.xx and later of the R&S®SMBV100B.
© 2023 Rohde & Schwarz
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: [phone] - 0
Email: [email protected]
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.
All other trademarks are the properties of their respective owners.
1178.9178.02 | Version 08 | R&S®SMBVB-K151/-K152/-K153
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, e.g. R&S®SMBV100B is indicated as
R&S SMBVB.

Contents
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Contents
1 Welcome to the avionics options......................................................... 7
1.1 Key features...................................................................................................................7
1.2 Accessing the avionics dialog.....................................................................................8
1.3 What's new.....................................................................................................................9
1.4 Documentation overview..............................................................................................9
1.4.1 Getting started manual....................................................................................................9
1.4.2 User manuals and help................................................................................................... 9
1.4.3 Service manual............................................................................................................. 10
1.4.4 Instrument security procedures.....................................................................................10
1.4.5 Printed safety instructions............................................................................................. 10
1.4.6 Data sheets and brochures........................................................................................... 10
1.4.7 Release notes and open source acknowledgment (OSA)............................................ 10
1.4.8 Application notes, application cards, white papers, etc.................................................11
1.4.9 Videos............................................................................................................................11
1.5 Scope............................................................................................................................11
1.6 Notes on screenshots.................................................................................................11
2 About avionics..................................................................................... 13
3 Generating ILS signals........................................................................ 14
3.1 Required options.........................................................................................................14
3.2 About ILS..................................................................................................................... 14
3.3 ILS configuration and settings.................................................................................. 17
3.3.1 General settings............................................................................................................ 18
3.3.2 ILS glide slope settings................................................................................................. 20
3.3.3 ILS localizer settings..................................................................................................... 26
3.3.4 ILS marker beacons settings.........................................................................................34
4 Generating VOR signals......................................................................39
4.1 Required options.........................................................................................................39
4.2 About VOR................................................................................................................... 39
4.3 VOR configuration and settings................................................................................ 41
4.3.1 General settings............................................................................................................ 41

Contents
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4.3.2 Signal settings...............................................................................................................44
4.3.3 Position settings............................................................................................................ 45
4.3.4 COM/ID settings............................................................................................................46
5 Generating DME signals......................................................................49
5.1 Required options.........................................................................................................49
5.2 About DME...................................................................................................................49
5.3 DME configuration and settings................................................................................ 55
5.3.1 General settings............................................................................................................ 56
5.3.2 Signal settings...............................................................................................................59
5.3.3 Pulse settings................................................................................................................62
5.3.4 COM/ID settings............................................................................................................64
5.3.5 Propagation settings..................................................................................................... 66
5.3.6 Adjustment settings.......................................................................................................70
5.3.7 DME Analysis settings.................................................................................................. 74
6 Signal generation control....................................................................78
6.1 Trigger settings........................................................................................................... 78
6.2 DME marker settings.................................................................................................. 83
6.3 Clock settings..............................................................................................................86
6.4 Global connectors settings........................................................................................87
7 Remote-control commands.................................................................88
7.1 Programming examples............................................................................................. 89
7.2 General commands.....................................................................................................98
7.3 ILS commands...........................................................................................................100
7.3.1 General settings.......................................................................................................... 100
7.3.2 ILS glide slope commands.......................................................................................... 101
7.3.3 ILS localizer commands.............................................................................................. 107
7.3.4 ILS marker beacons commands..................................................................................117
7.4 VOR commands........................................................................................................ 122
7.4.1 VOR general commands.............................................................................................122
7.4.2 VOR signal commands............................................................................................... 123
7.4.3 VOR position commands............................................................................................ 126
7.4.4 VOR COM/ID commands............................................................................................127

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7.5 DME commands........................................................................................................ 130
7.5.1 DME general commands.............................................................................................130
7.5.2 DME signal commands............................................................................................... 131
7.5.3 DME pulse commands................................................................................................ 139
7.5.4 DME propagation commands......................................................................................141
7.5.5 DME analysis commands............................................................................................145
7.5.6 DME COM/ID commands............................................................................................152
7.6 Trigger commands.................................................................................................... 156
7.7 DME marker commands........................................................................................... 161
7.8 Clock commands...................................................................................................... 163
Annex.................................................................................................. 164
A Morse code settings.......................................................................... 164
Glossary: Specifications and references.........................................166
List of commands.............................................................................. 167
Index....................................................................................................172

Contents
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Welcome to the avionics options
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1 Welcome to the avionics options
The avionics options are firmware applications that add functionality to generate sig-
nals in accordance with the related avionic standard.
This user manual contains a description of the functionality that the application pro-
vides, including remote control operation.
All functions not discussed in this manual are the same as in the base unit and are
described in the R&S SMBV100B user manual. The latest version is available at:
www.rohde-schwarz.com/manual/SMBV100B
Installation
You can find detailed installation instructions in the delivery of the option or in the
R&S SMBV100B service manual.
●Key features..............................................................................................................7
●Accessing the avionics dialog................................................................................... 8
●What's new................................................................................................................9
●Documentation overview...........................................................................................9
●Scope...................................................................................................................... 11
●Notes on screenshots..............................................................................................11
1.1 Key features
Common key features and features that are specific to the avionic option are as fol-
lows:
ILS key features
Option R&S SMBVB-K151 is a firmware application that adds functionality to generate
signals in accordance with the ground-based instrument landing system (ILS). It pro-
vides lateral and vertical guidance to an aircraft approaching and landing on a runway.
R&S SMBVB-K151 key features are:
●Emulation of instrument landing system (ILS)
●Generating ILS signal components: glide slope, localizer and marker beacons
●ICAO standard carrier frequencies and user-defined carrier frequencies
●Adjustable COM/ID settings.
VOR key features
The R&S SMBVB-K152 is a firmware application that adds functionality to generate
signals in accordance with the VHF Omnidirectional radio range radio navigation sys-
tem. VOR determines the aircraft position by receiving radio signals from a network of
ground beacons.
Key features

Welcome to the avionics options
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R&S SMBVB-K152 key features are:
●Emulation of VHF omnidirectional radio range (VOR)
●ICAO standard carrier frequencies and user-defined carrier frequencies
●User-defined position settings
●Adjustable COM/ID settings
DME key features
The R&S SMBVB-K153 is a firmware application that adds functionality to generate
signals in accordance with the distance measuring equipment (DME) for aircraft. DME
measures the slant range distance between the vessel and a fixed ground-based sta-
tion.
The most important R&S SMBVB-K153 features at a glance:
●DME system emulation
●Generating DME interrogation signals and reply signals
●ICAO standard carrier frequencies and user-defined carrier frequencies
●Adjustable COM/ID settings
●Testing echo rejection, velocity tracking and simulating flights
Real-time simulation
Changing a parameter in the avionic standards causes an instant signal change in the
R&S SMBV100B. There is no extra measurement cycle to calculate the RMS value of
the baseband signal to set the correct RF level.
If the avionics standard is activated for the first time, or after every subsequent on/off
sequence, the measurement cycle will take place to determine the correct RF level.
Every subsequent parameter change in the avionic standard is performed without
another measurement cycle to provide a continuous signal output.
1.2 Accessing the avionics dialog
To open the dialog with avionics settings
► In the block diagram of the R&S SMBV100B, select "Baseband" >
"ILS"/"VOR"/"DME".
A dialog box opens that displays the provided general settings of the selected stan-
dard.
The signal generation is not started immediately. To start signal generation with the
default settings, select "State" > "On".
Accessing the avionics dialog

Welcome to the avionics options
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1.3 What's new
This manual describes firmware version FW 5.30.047.xx and later of the
R&S®SMBV100B.
Compared to the previous version, it provides the new features listed below:
●DME flight simulation added, see "Flight Simulation" on page 68.
●Number of DME reply pulses added, see "Number of Replies for Efficiency Calcu-
lation" on page 59.
●DME input signal parameters updated for DME reply and DME interrogation
modes, see "Trigger Level" on page 61 and "Search Trigger Level" on page 61.
●Time-based triggering, see "Time Based Trigger" on page 80 and "Trigger Time"
on page 80.
●Editorial changes
1.4 Documentation overview
This section provides an overview of the R&S SMBV100B user documentation. Unless
specified otherwise, you find the documents at:
www.rohde-schwarz.com/manual/smbv100b
1.4.1 Getting started manual
Introduces the R&S SMBV100B and describes how to set up and start working with the
product. Includes basic operations, typical measurement examples, and general infor-
mation, e.g. safety instructions, etc. A printed version is delivered with the instrument.
1.4.2 User manuals and help
Separate manuals for the base unit and the software options are provided for down-
load:
●Base unit manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control com-
mands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
●Software option manual
Contains the description of the specific functions of an option. Basic information on
operating the R&S SMBV100B is not included.
The contents of the user manuals are available as help in the R&S SMBV100B. The
help offers quick, context-sensitive access to the complete information for the base unit
and the software options.
Documentation overview

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All user manuals are also available for download or for immediate display on the Inter-
net.
1.4.3 Service manual
Describes the performance test for checking compliance with rated specifications, firm-
ware update, troubleshooting, adjustments, installing options and maintenance.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
1.4.4 Instrument security procedures
Deals with security issues when working with the R&S SMBV100B in secure areas. It
is available for download on the internet.
1.4.5 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
1.4.6 Data sheets and brochures
The data sheet contains the technical specifications of the R&S SMBV100B. It also
lists the options and their order numbers and optional accessories.
The brochure provides an overview of the instrument and deals with the specific char-
acteristics.
See www.rohde-schwarz.com/brochure-datasheet/smbv100b
1.4.7 Release notes and open source acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
The software makes use of several valuable open source software packages. An open-
source acknowledgment document provides verbatim license texts of the used open
source software.
See www.rohde-schwarz.com/firmware/smbv100b
Documentation overview

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1.4.8 Application notes, application cards, white papers, etc.
These documents deal with special applications or background information on particu-
lar topics.
See www.rohde-schwarz.com/application/smbv100b
1.4.9 Videos
Find various videos on Rohde & Schwarz products and test and measurement topics
on YouTube: https://www.youtube.com/@RohdeundSchwarz
On the menu bar, search for your product to find related videos.
Figure 1-1: Product search on YouTube
1.5 Scope
Tasks (in manual or remote operation) that are also performed in the base unit in the
same way are not described here.
In particular, it includes:
●Managing settings and data lists, like saving and loading settings, creating and
accessing data lists, or accessing files in a particular directory.
●Information on regular trigger, marker and clock signals and filter settings, if appro-
priate.
●General instrument configuration, such as checking the system configuration, con-
figuring networks and remote operation
●Using the common status registers
For a description of such tasks, see the R&S SMBV100B user manual.
1.6 Notes on screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
Notes on screenshots

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The screenshots usually show a fully equipped product, that is: with all options instal-
led. Thus, some functions shown in the screenshots may not be available in your par-
ticular product configuration.
Notes on screenshots

About avionics
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2 About avionics
This chapter summarizes information on avionics standards supported at the
R&S SMBV100B. Also, it links detailed information on the avionic standard supported
at the R&S SMBV100B.
Overview of avionics standards
●Landing systems: ILS (Instrument Landing System)
Landing systems are ground-based approach systems that provide precision guid-
ance to aircraft approaching and landing on a runway.
For more information, see Chapter 3, "Generating ILS signals", on page 14.
●Radio/Flight navigation systems: VOR (VHF Omnidirectional Radio), DME (Dis-
tance measuring equipment)
The radio navigation systems are aircraft systems that support the pilots to deter-
mine the aircraft positions and stay on course.
For more information, see Chapter 4, "Generating VOR signals", on page 39 and
Chapter 5, "Generating DME signals", on page 49.

Generating ILS signals
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3 Generating ILS signals
This chapter provides information on instrument landing system (ILS) signal generation
with the R&S SMBV100B. This information includes required options, background
information on ILS, generation of ILS signals, configuration and settings.
●Required options.....................................................................................................14
●About ILS................................................................................................................ 14
●ILS configuration and settings.................................................................................17
3.1 Required options
The basic equipment layout for generating ILS signals includes:
●Base unit
●Baseband real-time extension (R&S SMBVB-K520)
●Digital standard ILS (R&S SMBVB-K151)
3.2 About ILS
During the landing approach, the aircraft uses the instrument landing system (ILS) to
monitor the correct approach path to the runway.
Figure 3-1: Approach navigation using instrument landing system (ILS) [1MA193]
An ILS consists of three independent subsystems:
●A glide slope for vertical guidance
●A localizer for horizontal guidance
●Optionally, marker beacons
Glide slope
The glide slope transmitter is located near the end of the runway (nearest to the start of
the aircraft approach).
About ILS

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Typically, vertically aligned antennas transmit two intersecting main beams on top of
one another at carrier frequencies between 329 MHz and 335 MHz (see Table 3-1).
The top beam is usually modulated at 90 Hz and the beam below at 150 Hz [1MA193].
The information on position is provided after demodulation of the beam signals by eval-
uating the difference in depth of modulation (DDM). The following scenarios are possi-
ble:
●Predominance of the 90 Hz beam: the aircraft is too high and must descend
●Predominance of the 150 Hz beam: the aircraft is too low and needs to climb
●The signal strength from both beams is equal: the aircraft is in the center, on the
right course.
If there is a predominance of the 90 Hz beam, then the aircraft is too high and must
descend. A predominant 150 Hz means that the aircraft is too low and needs to climb.
Localizer
The localizer transmitter is located near the end of the runway (nearest to the start of
the aircraft approach). Typically, horizontally aligned antennas transmit two intersecting
main beams beside one another at carrier frequencies between 108 MHz and 112 MHz
(see Table 3-1). As seen from the approaching aircraft coming in for a landing, the left
beam is usually modulated at 90 Hz and the right beam at 150 Hz [1MA193].
The information on position is provided after demodulation of the beam signals by eval-
uating the difference in depth of modulation (DDM). The following scenarios are possi-
ble:
●Predominance of the 90 Hz beam: the aircraft is too far to the left and must turn to
the right
●Predominance of the 150 Hz beam: the aircraft is too far to the right and must turn
to the left
●The signal strength from both beams is equal: the aircraft is in the center, on the
right course.
About ILS

Generating ILS signals
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Marker beacons
Marker beacon receivers are used for a rough distance measurement. They are availa-
ble only for some ILS installations [1MA193].
Figure 3-2: Marker beacon placement and distance to runway
Marker beacon receivers decode audio and provide signaling output to identify one of
three marker beacons installed near the runway. They transmit a narrow beam width at
75 MHz carrier frequency in a vertical direction. Each of them has a different distinct
modulation code to allow the receiver to identify which one it is flying over [1MA193].
Both visual (color of the marker beacon) and audio tone identification is supported for
determining which marker has been flown over. The audio/visual pairing of marker bea-
cons is as follows:
●Outer marker flashes BLUE in the cockpit at 400 Hz (“relaxed” tone).
●Middle marker flashes AMBER in the cockpit at 1300 Hz (“hurried” tone).
●Inner marker flashes WHITE in the cockpit at 3000 Hz (“urgent” tone).
About ILS

Generating ILS signals
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Related Settings
For ILS settings at the R&S SMBV100B, see the following sections:
●Chapter 3.3.2, "ILS glide slope settings", on page 20
●Chapter 3.3.3, "ILS localizer settings", on page 26
●Chapter 3.3.4, "ILS marker beacons settings", on page 34
Channel frequencies
The column notations in the table below are as follows:
●Chan. = ICAO channel number
●LOC freq. = ILS localizer frequency (MHz)
●GS freq. = ILS glide slope frequency (MHz)
Table 3-1: ILS ICAO channels and frequencies (MHz)
Chan. LOC freq. GS freq. Chan. LOC freq. GS freq. Chan. LOC freq. GS freq.
18X
18Y
108.10
108.15
334.70
334.55
32X
32Y
109.50
109.55
332.60
332.45
46X
46Y
110.90
110.95
330.80
330.65
20X
20Y
108.30
108.35
334.10
333.95
34X
34Y
109.70
109.75
333.20
333.05
48X
48Y
111.10
111.15
331.70
331.55
22X
22Y
108.50
108.55
329.90
329.75
36X
36Y
109.90
109.95
333.80
333.65
50X
50Y
111.30
111.35
332.30
332.15
24X
24Y
108.70
108.75
330.50
330.35
38X
38Y
110.10
110.15
334.40
334.25
52X
52Y
111.50
111.55
332.90
332.75
26X
26Y
108.90
108.95
329.30
329.15
40X
40Y
110.30
110.35
335.00
334.85
54X
54Y
111.70
111.75
333.50
333.35
28X
28Y
109.10
109.15
331.40
331.25
42X
42Y
110.50
110.55
329.60
329.45
56X
56Y
111.90
111.95
331.10
330.95
30X
30Y
109.30
109.35
332.00
331.85
44X
44Y
110.70
110.75
330.20
330.05
3.3 ILS configuration and settings
Option: R&S SMBVB-K151
Access:
► Select "Baseband" > "ILS".
The remote commands required to define ILS settings are described in Chapter 7.3,
"ILS commands", on page 100.
ILS configuration and settings

Generating ILS signals
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Settings:
●General settings......................................................................................................18
●ILS glide slope settings........................................................................................... 20
●ILS localizer settings............................................................................................... 26
●ILS marker beacons settings...................................................................................34
3.3.1 General settings
This chapter provides settings to configure general ILS components.
Access:
► Select "ILS" > "General".
This dialog comprises general settings of the ILS standard, the default and the
"Save/Recall" settings.
By default, an ILS glide slope modulation signal on an RF carrier with a frequency
of 344.7 MHz or ICAO channel 18X. The dual-tone LF signal with frequencies
90 Hz and 150 Hz and a balanced modulation at SDM of 80 %.
Changing a parameter in the avionic standards causes an instant signal change in the
R&S SMBV100B. There is no extra measurement cycle to calculate the RMS value of
the baseband signal to set the correct RF level.
If the avionics standard is activated for the first time, or after every subsequent on/off
sequence, the measurement cycle will take place to determine the correct RF level.
Every subsequent parameter change in the avionic standard is performed without
another measurement cycle to provide a continuous signal output.
Settings:
State..............................................................................................................................18
Set To Default................................................................................................................19
Save/Recall...................................................................................................................19
ILS Component............................................................................................................. 19
State
Activates the avionic standard.
ILS configuration and settings

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Activation of the standard deactivates a previously active avionic standard. The
"VOR/ILS/DME > Carrier Frequency" setting is applied automatically to the RF "Fre-
quency" and displayed in the status bar.
Remote command:
<subsystem>:STATe on page 100
Set To Default
Calls the default settings. The values of the main parameters are listed in the following
table.
Standard Parameter Value
VOR/ILS/DME State Not affected by "Set to default"
VOR Carrier Frequency Mode User Defined
Carrier Frequency 108.000000 MHz
ILS ILS Component Glide Slope (GS)
ILS GS > Carrier Frequency Mode User Defined
ILS GS > Carrier Frequency 334.700000 MHz
DME DME Mode Interrogation
Channel Mode X Channel
Carrier Frequency 1.025 GHz
Remote command:
<subsystem>:PRESet on page 98
Save/Recall
Accesses the "Save/Recall" dialog, that is the standard instrument function for saving
and recalling the complete dialog-related settings in a file. The provided navigation
possibilities in the dialog are self-explanatory.
The settings are saved in a file with predefined extension. You can define the filename
and the directory, in that you want to save the file.
See also, chapter "File and Data Management" in the R&S SMBV100B user manual.
Remote command:
<subsystem>:SETTing:CATalog on page 99
<subsystem>:SETTing:DELete on page 99
<subsystem>:SETTing:LOAD on page 99
<subsystem>:SETTing:STORe on page 99
ILS Component
Sets the ILS component.
"Glide slope" Enables the glide slope.
"Localizer" Enables the localizer.
"Marker Beacons"
Enables the marker beacons.
ILS configuration and settings

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Remote command:
[:SOURce<hw>][:BB]:ILS:TYPE on page 100
3.3.2 ILS glide slope settings
Access:
1. Select "ILS" > "General".
2. Select "ILS Component" > "Glide Slope".
Settings:
●General settings......................................................................................................20
●Signal settings.........................................................................................................21
●Amplitude settings...................................................................................................23
3.3.2.1 General settings
Access:
► Select "ILS" > "General".
This dialog provides carrier frequency settings related to the ILS glide slope com-
ponent of the ILS signal.
Settings:
Carrier Frequency Mode............................................................................................... 20
Carrier Frequency......................................................................................................... 21
ICAO Channel...............................................................................................................21
Sync with Glide Slope/ Sync with Localizer.................................................................. 21
Carrier Frequency Mode
Sets the mode for the carrier frequency of the signal.
Select "Carrier Frequency Mode > ICAO" to set a standard ILS frequency channel. If
you want to couple carrier frequencies of ILS glide slope and localizer components,
enable Sync with Glide Slope/ Sync with Localizer.
ILS configuration and settings