1650-3-5601 RF Channel Emulator-Propsim Input … · Web viewOnce test is complete, test results...

Doc: 1650-3-5601 Rev: A Date: June 18, 2013

Standard Operating Procedure

RF Channel Emulator Input Calibration Measurement

Elektrobit Propsim F8

Page 1 of 20 © Copyright by ETS-Lindgren L.P. Printed on TBDUse electronic view to assure latest revision


Table of Contents

1. Scope.........................................................................................................................................32. General Responsibility and Authority.....................................................................................33. Equipment Required.................................................................................................................34. Equipment Setup......................................................................................................................45. Setup for EMQuest™ testing software …………………………………………………………....56. Create a new Parameter File…………………………………………………………………………87. Revision History......................................................................................................................218. Appendix A – Reference Loopback Graph...........................................................................22



1. Scope

1.1 This Standard Operation Procedure applies to the EB Propsim F8 Channel Emulator Input Calibration.

1.2 This Standard Operation Procedure contains confidential proprietary information of ETS-Lindgren, L.P. and shall not be copied or reproduced in whole or in part nor its contents revealed in any manner or to any person except to meet the purpose for which it was delivered. All designs, manufacturing, reproduction, use and sale rights regarding same are expressly reserved.

2. General Responsibility and Authority

2.1 The Field Service Technician(s) has the general responsibility of performing the Channel Emulator Input Calibration and the authority to direct appropriate actions of exceptional situations not included within this Standard Operation Procedure.

2.2 The Field Services Manager, in conjunction with all affected functional departments, maintains this document and shall ensure all paperwork has been completed, signed, and is within required tolerance.

2.3 Engineering Representative(s) shall provide technical assistance as necessary.

3. Equipment Required

IBM compatible computer system, Pentium II or higher with Windows 2000 or higher Operating Systems, 128 MB memory or more, 500 MB free hard drive space with EMQuest software installed.Measurement Chamber: ETS-Lindgren 3D fully anechoic chamber and its measuring system making use of EMQuest™ software.

Vector Network Analyzer (VNA)

Channel Emulator (CE) / EB Propsim F8

RF High Performance Cables

SMA Female to N Male Coaxial Adapter

Various Attenuators (6dB, 10dB, 20dB, etc.)



4. Equipment Setup.

4.1 Verify that the Vector Network Analyzer and the CE/Propsim are fully installed and operational.

4.2 Using the 30dB attenuator and RF cable provided, connect Port 1 and Port 2 of the VNA together.

4.3 Copy the PRM file “Equipment Verification_VNA” from CPFiles (\\Corp\Files) (X:) Drive using the following path “X:\Field Calibration\Private\Templates\Equipment Verification EMQuest Templates” to your local C: drive.

4.4 Using EMQuest, Select File, Open, and open the parameter file “Equipment Verification_VNA” in your C: drive.

4.5 Go to “Equipment”, select the VNA that will be used in this Standard Operation Procedure and fill all of its required parameters.

4.6 Press the “Run Test” Button on the EMQuest™ toolbar to start the test.

4.7 Once test is complete, test results should be between -29 and -30dB. Once this is verified, save raw data file in the appropriate folder for reference. If verification fails, notify Field Services Manager before proceeding.

4.8 Connect the Output (TX) port 1 of the Vector Network Analyzer) to the Input Port 1 of the CE/EB Propsim F8 using one of the RF cables and the SMA Female to N Male Coaxial Adapter.



Figure 1: CE / Propsim F8 Input Ports 1 and 2

5. Setup for EMQuest™ testing software

5.1 Open the EMQuest™ program, which is installed on controlling PC.

5.2 Standard parameter files for performing these tests using the EMQuest™ software will be maintained by the Field Service Manager. All parameter files are standard for each test and should not have to be modified unless specified by this document. If there is no existing file then follow the steps in Section 6 to create a new parameter file.

5.3 Click on “File/Open” tab, select and open the correct parameter (.PRM) file.

5.4 Select and highlight "Test Information" in the left column menu and fill in the Information as shown in Figure 3.


Input/Channels 1 and 2 connectors


Manufacturer Manufacturer of CE (I.e. Elektrobit)

Model Model of CE (I.e. F8 Propsim)

Serial Number Serial No. or identifying number

Type Type of Equipment (I.e. Channel Emulator)

Figure 2: Test Information

5.5 Click on the plus (+) sign in front of Test Information to expand the menu selection.

5.6 Select and highlight "Operator Comments" and fill in the information as follows.

Operator The full name of the test operator

Comments F8 Propsim Channel Emulator Input Calibration



Figure 3: Operator/Comments

5.7 The Parameters folder should remain standard for each test and should not be modified unless directed by Engineering.

5.8 The Frequency folder should remain standard for each test and should not be modified unless directed by Engineering.

5.9 The Equipment folder should remain standard for each test and should not be modified unless directed by Engineering.

5.10 The Corrections folder should remain standard for each test and shall not be modified unless directed by Engineering.

5.11 The “Pattern” and “Antenna Port input Power” not required for this test.

5.12 Select “Use Default” path. This path will use folder “C:\Program Files\ETS-Lindgren\EMQuest\Raw Data”. All other paths are user defined and not necessary at this point.

5.13 Output, User Defined and Notification tabs are not required.

5.14 Ancillary Equipment should remain standard for each test and should not be modified unless directed by Engineering.



5.15 Make sure all software and cable connections have been verified.

5.16 Press the RUN (►) button in EMQuest™ to start the test.

5.17 EMQuest will prompt a window requesting to connect the VNA output port to the EB Propsim F8 Channel Emulator input port 1. Connect and/or verify that the VNA output port is connected to the CE/Propsim port 1. Click on “OK” to continue.

5.18 Once the input calibration of the input port 1 of the EB Propsim F8 Channel Emulator is complete, EMQuest will prompt a window requesting to connect the VNA output port to the EB Propsim F8 Channel Emulator input port 2. Connect and/or verify that the VNA output port is connected to the EB Propsim F8 Channel Emulator port 2. Click on “OK” to continue.

5.19 Once the Input Calibration of the EB Propsim F8 Channel Emulator port 2 is complete a RAW file named YYYY.MM.DD.HH.MM.SS will be created in the designated output folder.

5.20 A second RAW file named “Input Calibration_YYYY.MM.DD.HH.MM.SS” must be created in the designated output folder.

5.21 See Appendix A for reference Input Calibration Graphs.

6. Create a new Parameter File.

6.1 Open the EMQuest™ program, which is installed on controlling PC.

6.2 Pull down the File item on the EMQuest™ top tool bar.

6.3 Select “New” and “Parameters” functions to insert one blank parameter file as follows.

Figure 4: Parameters Function

6.4 Select the drop down menu and scroll to and select “RF Channel Emulator Input Calibration Measurement” as follows.



Figure 5: Measurement Type – RF Channel Emulator Input Calibration Measurement

6.5 Select and highlight "Test Information" in the left column menu and fill in the Information as follows.

Manufacturer Manufacturer of CE (I.e. Elektrobit)

Model Model of CE (I.e. F8 Propsim)

Serial Number Serial No. or identifying number

Type Type of Equipment (I.e. Channel Emulator)

Figure 6: Test Information



6.6 Click on the plus (+) sign in front of Test Information to expand the menu selection.

6.7 Select and highlight "Operator Comments" and fill in the appropriate information as follows.

Operator The full name of the test operator

Comments F8 Propsim Channel Emulator Input Calibration

Figure 7: Operator Comments



6.8 Select and highlight "Parameters" in the left column menu.

Measurement OptionsInput Cal SRC Power Label 0.0 dBm

Figure 8: Parameters

6.9 Refer to the Project Integration Diagram for the next steps to set up the equipment.



6.10 Select the “Equipment” and “Setup Equipment” tabs and select the test equipment group that matches the test equipment installed (i.e. Network Analyzer, etc.). Select the model that matches the test equipment in the project integration diagram (i.e. Agilent ENA Series). Right click and add new test equipment. Rename the “MIMO Calibration ENA” to the name that matches the model installed (i.e. Agilent ENA Series).

Figure 9: Equipment Set Up – Agilent ENA Series

6.11 Select the equipment group that matches the RF Channel Emulator installed. Select the model that matches the Channel Emulator in the project integration diagram, i.e. EB Propsim F8 Channel Emulator. Right click and add new test equipment. A “New EB Propsim F8 Channel Emulator” will be added to the list of available RF Channel Emulators.

6.12 In the right window, enter the number of CEs that will be used in “Emulator Count” (I.e. 1 or 2).

6.13 Enter “4” in “Cable Length”.

6.14 Enter the IP address or addresses of the CE(s). The first IP address is for the “Master” CE and the second will be for the “Slave” CE.



Figure 10: Equipment Set Up – F8 Propsim Channel Emulator

6.15 In Parameters window select “Equipment”.

Figure 11: Equipment Selections



6.16 In the “Signal Generator/Network Analyzer” window select the “MIMO Calibration ENA”.

6.17 Select the “MIMO Calibration ENA” from Equipment and set the parameters as follow.

GeneralTrace information - Use Smoothing Factor Unchecked

Trace information - Use Averaging Factor Unchecked

Trace information - Points Per Trace 2

IF bandwidth/Sweep Time - Bandwidth Setting 100000 Hz

IF bandwidth/Sweep Time – Manual Sweep Time Unavailable

IF bandwidth/Sweep Time – Auto Sweep Time Checked

Port settings - Auto Couple Power Checked

Port settings – Auto Attenuation Checked

Port settings – Calibration Output Power Increase the output power, if possible, to keep the expected input to the CE between 0 and -10 dBm. (I.e. 0 dBm)

Port settings – Calibration Port Attenuation Unavailable

Port settings – Measurement – Output Power Increase the output power, if possible, to keep the expected input to the CE between 0 and -10 dBm. (I.e. 0 dBm)

Port settings – Measurement – Port Attenuation Unavailable



Figure 12: Equipment – MIMO Calibration ENA Settings

6.18 In the “RF Channel Emulator” window select the “New EB Propsim F8 Radio Channel Emulator”.

6.19 Select the “New EB Propsim F8 Radio Channel Emulator” on Equipment and set the parameters in “Equipment Settings” as follow.

Equipment Settings – Channel Emulator ParametersChannel Model Simulation File (From Shared Drive)

P:\Constant Tap Calibration\Calibration2x8.smu

Reference Average Input Power Type “-5.0 dBm”

Crest Factor Type “0.0 dBm”

Mobile Speed Checked

Mobile Speed Type “3.00 kph”

Initial Center Frequency Type “1000.00Mhz”

Reference Output Port Gain Type “-50.0dB”

Ref Phase Setting Type “0.0°

Use External 10Mhz Reference Unchecked

Rewing Simulator on Power Change Unchecked



Calculate gain relative to… Type the required Center Frequency, i.e. 751.000 MHz

Channel Model Reference Select “total power of all inputs”

Channel Model Simulation Filename Type “Calibration2X8”

Figure 13: Equipment – EB Propsim F8 RF Radio Channel Emulator – Equipment Settings

6.20 Set the parameters in “Input/Output Calibration” as follow.

Input Output CalibrationInput Normalization File No File Selected

Output Correction Files No Files selected

Input Enable Check Inputs 1 and 2 for a 2x8 for the Propsim F8.Enable the number of inputs based on the number of outputs of the BSE to be used. Use a constant tap/default channel model with the number of inputs matching that to be used with the BSE (e.g. 2x8 for two ports or 4x8 for four ports).

Output Enable Check Output Ports 1 to 8 for a single Propsim or 1 to 16 for two (2) Propsims.



Figure 14: Equipment – EB Propsim F8 RF Channel Emulator – Input Output Calibration

6.21 Click on Frequency Range to set the parameters. The Frequency Range can be entered by:

A. Manually starting with the lower frequency and continue entering the required frequencies (i.e. 734, 741, 751, 763, 874, 881.5, 889, 1932.5, 1935, 1960, 1962.5, 1985, 1992.5, 2115, 2132.5, and 2150).

B. Right click and select “Fill Range” and enter the Start Frequency, the Stop Frequency and the Step.

C. Right click and select “Use the Wireless Tool” and select the “Wireless Band”.



Figure 15: Frequency Range

6.22 Select “Use Default” path. This path will use folder “C:\Program Files\ETS-Lindgren\EMQuest\Raw Data”. All other paths are user defined and not necessary at this point.

Figure 16: Path



6.23 Output, User Defined and Notification Tabs are not required.

6.24 Ancillary Equipment should remain standard for each test and should not be modified unless directed by Engineering.

6.25 Make sure that all software and cable connections have been verified.

6.26 Press the RUN (►) button in EMQuest™ to start the test.

6.27 EMQuest will prompt a window requesting to connect the VNA output port to the EB Propsim F8 Radio Channel Emulator Input Port 1. Connect and/or verify that the VNA output port is connected to the EB Propsim F8 Radio Channel Emulator port 1. Click on “OK” to continue.

6.28 Once the input calibration of the EB Propsim F8 Radio Channel Emulator port 1 is complete, EMQuest will prompt a window requesting to connect the VNA output port to the EB Propsim F8 Radio Channel Emulator Input Port 2. Connect and/or verify that the VNA output port is connected to the EB Propsim F8 Radio Channel Emulator port 2. Click on “OK” to continue.

6.29 The Channel Emulator Input Calibration is complete and a RAW file named YYYY.MM.DD.HH.MM.SS was created in the designated output folder.

6.30 A second RAW file named “Input Calibration_YYYY.MM.DD.HH.MM.SS” must be created in the designated output folder.

6.31 See Appendix A for reference Input Calibration graphs.

7. Revision History

Rev A Initial Release TBD



8. Appendix A – Reference Input Calibration Graphs.


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