RTX RTX2018 User manual

Date: 09-May-2019
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RTX2018
User Manual
Version 1.0

Date: 09-May-2019
Product name RTX2018
File: RTX2018 User Manual 1.0.docx
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reserves the right at any time to change said content, circuitry and specifications.
General
Information contained in this document is subject to change without notice. RTX A/S makes
no warranty of any kind regarding this material, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. RTX shall not be liable for
errors contained herein or for incidental or consequential damages in connection with the
furnishings, performance, or use of this material.
Warranty
This instrument is warranted against defects in material and workmanship for a period of one
year from date of shipment. During the warranty period, RTX will at its option, either repair or
replace products, which prove to be defective. For warranty service or repair, this product
must be returned to a service facility designated by RTX. RTX warrants that its software and
firmware designated by RTX for use with an instrument will execute its programming
instructions when properly installed on that instrument. RTX does not warrant that the
operation of the instrument or firmware will be uninterrupted or error free.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate
maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or
misuse, operation outside of the environmental specifications for the product, or improper
site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. RTX SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Date: 09-May-2019
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reserves the right at any time to change said content, circuitry and specifications.
General Information
This document and the information contained herein, is the property of RTX A/S, Denmark.
Unauthorized copying is not allowed. The information in this document is believed to be
correct at the time of writing. RTX reserves the right at any time to change said content,
circuitry and specifications.
The general safety precautions, according to the RTX2018 User Manual, must be observed
during all phases of operation. RTX assumes no liability for the customer’s failure to comply
with these requirements.
The purpose of this document is to provide guidance to users of the RTX2018 Multi-Level
Modulation DECT RF Test Platform. The User Manual describes general functions of the
system, use of the Windows-based Graphical User Interface, as well as interfacing with a test
application program.
For further information about programming of the RTX2018, please refer to the “RTX2018
Interface Specification”.

Date: 09-May-2019
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reserves the right at any time to change said content, circuitry and specifications.
Documentation Information
This User Manual contains essential items of information needed for general-purpose use of
the RTX2018 along with a detailed description for high-throughput production purposes.
In this document you will find valuable information on how to install and operate your
RTX2018 using the supplied PC application or a test program using the remote command set.
The separate RTX2018 Interface Specification provides programming guidance for users of the
RTX2018 who would like to develop a test application software. The document includes a
programming reference along with a detailed description of the SCPI commands supported by
the tester. Furthermore, you also find information on how to use the provided RTX2018 DLL
files and a few examples on how to use the DLL function calls in your source code are outlined.
However, please note that the examples and code fragments are included for informational
purposes only and should only be used as a guidance to aid test program development.
It is therefore strongly emphasized here that RTX takes no responsibility for debugging and
verification of the actual test application developed by the customer.
Conventions Used in this Manual
The following text conventions are used in this manual:
Parameter used to represent a parameter, value or data in an entry field
RUN used to represent the text in the Windows-based graphical user interface

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Abbreviations Used in this Manual
The following abbreviations are used in this manual:
ADC Analog to Digital Converter
API Application Programming Interface
ARB Arbitrary
ATE Automatic Test Equipment
BER Bit Error Rate
COM Communication
DECT Digitally Enhanced Cordless Telecommunications
DLL Dynamic Link Library
DNS Domain Name Server
DUT Device Under Test
ETSI European Telecommunications Standards Institute
EVM Error Vector Magnitude
FER Frame Error Rate
FP Fixed Part
GFSK Gaussian Frequency Shift Keying
GUI Graphical User interface
HW Hardware
IP Internet Protocol
IQ In phase/Quadrature phase signals
NTP Normally Transmitted Power or Average Burst Power
PP Portable Part
PSK Phase-Shift Keying
RF Radio Frequency
RMS Root Mean Square
RSSI Received Signal Strength Indicator
RX Receive
SPSRBS Static Pseudo Random Bit Sequence
SW Software
TX Transmit

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Table of Contents
1Introduction.....................................................................................8
1.1 Document History......................................................................................... 8
1.2 References................................................................................................... 8
2RTX2018 Installation Requirements ..............................................9
2.1 RTX2018...................................................................................................... 9
2.2 R&S CMW100.............................................................................................. 9
2.3 Computer Requirements.............................................................................. 9
3RTX2018 Pre-installation..............................................................10
3.1 System Overview ....................................................................................... 10
3.2 Driver Installation........................................................................................ 10
3.3 Waveform Installation................................................................................. 10
4RTX2018 Installation.....................................................................11
4.1 RTX2018 DLL ............................................................................................ 12
4.2 Documentation........................................................................................... 13
5RTX2018 User Manual...................................................................14
5.1 General GUI Description............................................................................ 14
5.1.1 Connect............................................................................................... 15
5.1.2 Frequency/Channel/Channel Frequency............................................. 16
5.1.3 Slot Types........................................................................................... 16
5.1.4 Cable Loss.......................................................................................... 16
5.1.5 RF Ports.............................................................................................. 17
5.2 RX Measurements...................................................................................... 17
5.2.1 Theory of RX (BER) Measurements.................................................... 17
5.2.2 Manual DUT Control ........................................................................... 18
5.2.3 RF Generator Setup............................................................................ 18
5.2.4 DUT Interface...................................................................................... 19
5.2.5 DUT Control........................................................................................ 20
5.2.6 BER/FER Measurements.................................................................... 20
5.3 TX Measurements...................................................................................... 21
5.3.1 TX Measurement Setup ...................................................................... 22
5.3.2 Capture Time ...................................................................................... 24
5.3.3 Evaluation Window.............................................................................. 24
5.3.4 B0 Search ........................................................................................... 25
5.4 Modulation.................................................................................................. 25
5.4.1 DUT Control for TX Measurements..................................................... 26
5.5 TX GFSK Measurement Results................................................................ 27
5.6 TX PSK Measurement Results................................................................... 29
6Test Application Development.....................................................34

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reserves the right at any time to change said content, circuitry and specifications.
Table of Figures
Figure 1. Installation screen shot of program folder selection................................... 11
Figure 2. Installation screen shot for license file selection........................................ 11
Figure 3. Installation screen shot for waveform installation instructions................... 12
Figure 4. GUI start-up screen................................................................................... 14
Figure 5. Tester configuration................................................................................... 15
Figure 6. RX measurement tab................................................................................. 17
Figure 7. RX tab in manual DUT mode..................................................................... 18
Figure 8. RX setup details ........................................................................................ 19
Figure 9. RX measurement detail............................................................................. 20
Figure 10. TX GFSK measurement tab .................................................................... 22
Figure 11. Capture and evaluation timing in the RTX2018 without b0 search.......... 22
Figure 12. TX GFSK tester setup details.................................................................. 23
Figure 13. TX PSK tester setup detail ...................................................................... 24
Figure 14. Capture and evaluation timing with b0 search......................................... 25
Figure 15. DUT interface TX..................................................................................... 26
Figure 16. TX GFSK results...................................................................................... 27
Figure 17. TX GFSK graphical results (no b0 search).............................................. 28
Figure 18. TX GFSK graphical results (b0 search enabled) ..................................... 29
Figure 19. TX PSK numerical results........................................................................ 29
Figure 20. TX graphical PI2-DBPSK results (no b0 search)..................................... 31
Figure 21. TX graphical PI2-DBPSK results (b0 search enabled) ............................ 31
Figure 22.TX graphical PI4-DQPSK results (b0 search enabled)............................. 32
Figure 23. TX graphical PI8-D8PSK results (b0 search enabled)............................. 33

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reserves the right at any time to change said content, circuitry and specifications.
1 Introduction
This document describes the installation, setup and use of the RTX2018 test platform
consisting of a Rohde & Schwarz CMW100 Communications Manufacturing Test Set and an
RTX DECT RF analysis software application.
1.1 Document History
Ver.
Description
Resp.
Date
0.1
First version
FA
20-Mar-2019
1.0
Official release
PNI
09-May-2019
1.2 References
Number
Document
[1]
Interface Specification
[2]
R&S ® CMW100 Communications Manufacturing Test Set Getting Started

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2 RTX2018 Installation Requirements
2.1 RTX2018
To ensure that the user has the latest software and documentation for the RTX2018 prior to
installation, it is recommended to visit the RTX Download Center.
https://www.rtx.dk/en/design-services/download-center/
2.2 R&S CMW100
RTX recommends the user to register the included R&S CMW100 in the RTX2018 in the Rohde
& Schwartz Gloris system to get access to latest manuals for the CMW100.
https://gloris.rohde-schwarz.com/anonymous/en/pages/toplevel/home.html
2.3 Computer Requirements
The computer to be connected to the RTX2018/CMW100 must fulfil the minimum
requirements stated in the following table:

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3 RTX2018 Pre-installation
3.1 System Overview
The RTX2018 tester can be installed in two ways:
•On a single PC, where both the CMW100 driver and RTX2018 DLL/GUI are installed
•On two PCs, where the CMW100 driver is installed on the PC connected to the
CMW100 hardware (sometimes referred as the “server”) and the RTX2018 DLL/GUI
on another PC
The two above options exist as the connection between the CMW100 driver and the RTX2018
DLL and is an IP connection (on port 5025). In the first case, the connection is the “Localhost”
or IP address 127.0.0.1
3.2 Driver Installation
The CMW100 driver needs to be installed on the server PC to which the CMW100 is connected
via USB. Please refer to [2] for a detailed description of the installation.
Please note that the RTX2018 requires installation of the following two Rohde & Schwarz
packages:
CMW_BASE (File name Setup_CMW1xx_BASE(RELEASE)_x.x.xx_64Bit.exe)
CMW_GPRF (File name: Setup_CMW1xx_GPRF(RELEASE)_x.x.xx_64Bit.exe)
This version of the RTX2018 has been tested with:
CMW BASE version 3.7.60
CMW GPRF version 3.7.30
3.3 Waveform Installation
For the BER measurements, it is necessary to install the included waveform files on the PC
connected with the CMW100 hardware.
The default location for these waveform files is: C:\RTX2018
When using the RTX Dialog DA14495 firmware (Note 1) in the DUT, the following files are
required to allow testing of the four modulation formats:
•gfsk.wv (for GFSK)
•pi2.wv (for PI/2-DBPSK)
•pi4.wv (for PI/4-DQPSK)
•pi8.wv (for PI/8-D8PSK)
Note 1: RTX firmware including BER/FER test capability and Prod Test Interface for remote
control

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reserves the right at any time to change said content, circuitry and specifications.
4 RTX2018 Installation
The RTX2018 firmware and DLL is installed with the file:
RTX2018Setup.exe
When this program is launched, the first dialog box shows a selection option for the
installation folder for the RTX2018 (see Figure 1 below).
Figure 1. Installation screen shot of program folder selection.
The default folder is:
c:\Program Files (x86)\RTX\RTX2018\
This folder will contain the RTX2018 GUI files as well as the RTX2018 DLL (CMWIntf.dll).
The second dialog box (see Figure 2 below) is the installation of the license file. The license file
(“License.json”) is provided by RTX and is included in the RTX 2018 package.
Figure 2. Installation screen shot for license file selection.

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The license file will be copied to the RTX2018 program folder. For DLL operation, it is necessary
that a valid license file is present in the same folder as the DLL.
The license file should look something like this:
{
"SerialNumber": "1201.0002k03/106863", "LicenseCode":
"0563467856cd1b4306ffa5ad8ee2b938", "ExpireDate": "31-03-2019"
}c
This license file allows the DLL to operate with the specific CMW100 HW and related serial
number(s) as shown in the license file.
In case of multiple RTX 2018, the user can have up to 10 to serial numbers in a single license
file to enhance the flexibility for the user:
{
"SerialNumber": "1201.0002k03/107463", "LicenseCode":
"0563467856cd1b4306ffa5ad8ee2b938", "ExpireDate": "31-03-2019"
"SerialNumber": "1201.0002k03/106573", "LicenseCode":
"1b4306ffa5ad8ee2b9380563467856cd", "ExpireDate": "31-06-2019"
}
The third dialog box (see Figure 3 below) describes how to install the waveform files.
Figure 3. Installation screen shot for waveform installation instructions.
4.1 RTX2018 DLL
The RTX2018 DLL is installed into the RTX2018 program folder during installation.
The filename is:
CmwIntf.dll

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This is the DLL that interacts with the CMW100 driver and performs the measurement
calculations. Please refer to [1] for the DLL API.
This DLL can be used in ATE solutions or other applications where the user wants to integrate
and automate the RTX2018.
4.2 Documentation
The documentation for the RTX2018 will during installation be copied to the
“../RTX2018/docu” folder. This includes:
This document i.e. the RTX2018 User Manual
The DLL Interface description [1]

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5 RTX2018 User Manual
The GUI (Graphical User Interface) is an application on top of the RTX2018 DLL. The GUI can
be used for manual testing of DECT-based devices.
5.1 General GUI Description
Figure 4 below shows the start-up screen of the RTX2018 GUI application. The functionality is
placed on 3 tabs (“RX”, “TX GFSK” and “TX PSK”) which can be selected by clicking on the tabs.
Figure 4. GUI start-up screen

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Figure 5. below shows the “Tester Configuration”in detail. This part is always present in all
tabs.
Figure 5. Tester configuration
5.1.1 Connect
In the case of a setup with two PC (as described in section 3.1), it is necessary to establish the
connection between the PC running the RTX2018 GUI/DLL and the PC that has the USB
connection to the CMW100 HW.
The address of the CMW100 PC can be entered in the “Server IP/Name” field as either an IPV4
address (e.g. 10.10.101.219) or by a DNS name (e.g. “IT-02965”).
It will often be “Localhost” / “127.0.0.1” that will be used if the GUI is run on the same PC that
has the USB connection to the CMW100. (Please note that “Localhost” should be with capital
letter ‘L’)
When the “Connect” button is pressed, an instance of the DLL is established for doing setup
and measurement on the CMW100 HW.
To confirm the connection to the CMW100, the “*IDN” string (“Identification string”) for the
CMW100 HW will be shown below the “Connect” button.
The string includes the Rohde & Schwarz part number, serial number and CMW100 SW
version.

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An error message will appear if the server cannot be found.
5.1.2 Frequency/Channel/Channel Frequency
The “Frequency” field is a drop-down menu that allows the user to select various DECT bands:
•DECT EU
•DECT US
•DECT Japan
•DECT Korea
•Manual
A set of channels can be selected for each band. The corresponding channel frequency is
shown in the “Channel Freq” box.
The channel frequency is selected simultaneously for both RX and TX.
5.1.3 Slot Types
The “Slot Type” field drop-down menu is used to select between predefined slot types.
The slot types are used to configure the TX measurements with respect to capture time and
evaluation window. The TX power ramp definition does also depend on this selection.
The following slots are available:
•P32Z
•PP32Z
•P64Z
•PP64Z
P32Z and PP32Z are standard DECT full slots with Z-field. PP32Z/PP654Z has a prolonged
preamble (a 16-bit extension of the preamble in the beginning).
If the user adjusts either the “Capture Timing” or the “Evaluation Window”setting, the slot
type will change to “User Defined”.
5.1.4 Cable Loss
The “Cable Loss”field is used to adjust the results within the GUI for cable loss (or transmission
loss). This value is used for both RX and TX. The range for the cable loss is -10 to +30 dB.
The cable loss correction is done within the GUI. The DLL does NOT contain a cable loss
feature.

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5.1.5 RF Ports
The CMW100 has 8 RF ports that can be used for both RX and TX measurements. The field is
used to select which RF port (connector) is used. The GUI has one common selection for the
RF port which is valid for both RX and TX.
5.2 RX Measurements
5.2.1 Theory of RX (BER) Measurements
The RTX2018 (CMW100) RF tester does not test the RX performance utilizing the ETSI specified
“RF loopback connection” as is the case for e.g. the RTX2012 DECT RF tester.
The RTX2018 uses the “Non-signalling mode” which means that there is no RF connection
established between the tester and the DUT for control and RX measurements. The DUT will
therefore need to calculate the BER/FER internally as there is no return path from the DUT to
the tester - unless the DUT is a Dialog DA14495 with RTX firmware (Note 1).
The RTX2018 allows the user to download a predefined packet into the ARB (Arbitrary
waveform) generator. The generator will then replay this waveform continuously. The power
level of the signal generator can be changed. The DUT will then try to receive the transmitted
signal. As the DUT already knows what the waveform looks like, it can calculate the BER/FER.
The RTX2018 GUI application integrates the RTX-firmware-specific control interfaces allowing
the RTX2018 GUI to display BER and FER results (see Figure 6 below).
Figure 6. RX measurement tab

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5.2.2 Manual DUT Control
If the “Manual” button is pressed (see Figure 77 below) in the “DUT Interface” area, the DUT
control functionality is disabled.
Figure 7. RX tab in manual DUT mode
This means that the only operation possible in the RX mode is control of the signal that is
transmitted by the CMW100 RF generator. The DUT control area and the “Measurement area”
will be disabled.
The BER/FER in this case will need to be read out from the DUT by other means (and outside
the RTX2018 application).
5.2.3 RF Generator Setup
The RF generator setup details are shown in Figure 8 below.
The “Modulation/Waveform” field is a drop-down menu used to select which modulation
format (and hence waveform file) for the ARB generator.
If the DUT uses the RTX DA14495 stack, there is a specific waveform file for each modulation
type. This selection is done automatically.
If “Manual” is chosen as modulation, the user can manually type in the file name to be used.
Please note that the waveform files need to be stored on the PC that is physically connected
to the CMW100 via USB.
The default path to waveform files is:

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“c:\RTX2018\”
The slider is used to “Enable” or “Disable” the RF generator.
The RF output level controlled either by entering a numeric value in the “Level” box or by the
by slider below.
The range is from -100 to -10 dBm. The “Cable Loss” is considered before the value is
transmitted to the CMW100.
Figure 8. RX setup details
5.2.4 DUT Interface
The DUT interface is used to configure and control the DUT. If the “RtxProdtest DLL” button is
pressed, a file dialog box is opened to allow the user to select another RTXProdTest.DLL” file.
The DUT interface can only work if the DUT is utilizing an RTX-supplied firmware (Note 1).
The default “RTXProdtest.dll” will work for most products. It is located in the RTX2018 folder.

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5.2.5 DUT Control
The “DUT COM Port” field is a drop-down menu to select the COM port number used for the
DUT communication. The drop-down menu will be populated with the existing COM ports
during program launch, or by pressing the “Refresh” button next to the drop-down menu. The
(Refresh) button next to the “DUT Interface” text will verify the communication link with
the DUT. This is done by sending a “IsTargetConnected()” call to the DUT. If this is successful,
a green connected icon appears; if not a red icon appears.
5.2.6 BER/FER Measurements
The idea behind the BER/FER measurement is that the RF generator transmits a known, fixed
packet. The firmware in the DUT should recognize this packet. So, when the DUT receives a
packet it can compare the received packet with the expected pattern and calculate the
received BER.
If the DUT is using an RTX firmware (Note 1), the RTX2018 GUI can control the BER/FER
measurement using the controls shown in Figure 99 below.
Figure 9. RX measurement detail
When the BER/FER measurement function in the RTX firmware is called, it will try to receive
a number of frames. This number of frames is controlled via the “Number of Frames” slider;
alternatively, by entering the number in the box to the right. It is also possible to increment
or decrement the number using the “+” or “-“ button.
The BER measurement functionality in the firmware has an antenna selection function
“Antenna” for control of the antenna selection of the DUT for the BER measurement.