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Rohde & Schwarz R&S Getting Started

Converter leveling tool
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Software Utility
®
R&S
Converter Leveling Tool
Getting Started
(=ONÓ2)
1331306902

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Summary of Contents for Rohde & Schwarz R&S

  • Page 1 Software Utility ® R&S Converter Leveling Tool Getting Started (=ONÓ2) 1331306902...
  • Page 2 © 2020 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Email: 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.

  • Page 3: Table Of Contents

    Software Utility Contents Contents 1 Introduction.................... 5 2 Leveling Procedure................6 3 Required Equipment................8 Vector Network Analyzers R&S ZNA................8 Vector Network Analyzers R&S ZVA and R&S ZVT............8 Frequency Converters ....................9 Power Meter.........................10 4 Installation.................... 12 5 Remote Control Connections............. 13 Setup with R&S NRP110T or R&S NRP-Z58..............13 Setup with a VDI Erickson Power Meter..............
  • Page 4 Software Utility Contents Getting Started 1331.3069.02 ─ 03...

  • Page 5: Introduction

    Software Utility Introduction 1 Introduction ® This manual describes the installation, configuration and use of the R&S Converter Leveling Tool (Leveling Tool for short), a free software utility for vector network ana- lyzers R&S ZNA, R&S ZVA (including R&S ZVA110), andR&S ZVT, operated in combi- nation with frequency converters R&S ZCxxx and/or R&S ZVA-Zxxx(E).

  • Page 6: Leveling Procedure

    Software Utility Leveling Procedure 2 Leveling Procedure The purpose of frequency converter leveling is to determine the nominal RF input power P at the converter input that is required to generate a particular RF converter RF-In output power P at (output) frequency f. RF-Out To achieve this, the RF output power is measured on a "leveling grid", i.e.
  • Page 7 Software Utility Leveling Procedure ● Controlling the electronic attenuator of an E-type converter is not supported by the R&S ZNA, and hence the waveguide attenuator calibration is not available. How- ever, E-type converters can also be used with their default (unattenuated) output power.

  • Page 8: Required Equipment

    Software Utility Required Equipment Vector Network Analyzers R&S ZVA and R&S ZVT 3 Required Equipment The Leveling Tool is suitable for test systems consisting of a vector network analyzer R&S ZNA, R&S ZVA (including R&S ZVA110), orR&S ZVT, in combination with one or more frequency converters R&S ZCxxx or R&S ZVA-Zxxx(E);...

  • Page 9: Frequency Converters

    Software Utility Required Equipment Frequency Converters converters, if an external signal generator is used. On four-port instruments R&S ZVA67, an external signal generator is necessary to realize setups with 4 con- verter ports. The R&S ZVT20 can be operated with up to four frequency converters (depending on the number of installed ports).

  • Page 10: Power Meter

    Software Utility Required Equipment Power Meter 3.4 Power Meter The frequency range and waveguide interface of the power meter must be in accord- ance with the used frequency converter. Recommended Power Meters ● R&S NRP110T or its predecessor R&S NRP-Z58 for frequencies up to 110 GHz Figure 3-1: R&S NRP110T This power meter is equipped with a 1mm coax connector, so a suitable WRxx to 1 mm adapter is required.
  • Page 11 Software Utility Required Equipment Power Meter ● Adjust the range switch of the PMx so that the maximum RF output power of the frequency converter is within the selected power range. See the data sheet of the related converter type and the suitable PMx manual for details. ●...

  • Page 12: Installation

    Software Utility Installation 4 Installation The Leveling Tool can be installed on any PC running is appropriate for a PC running Windows XP SP3 or higher. To install it, download the suitable installer (32- or 64-bit) from the R&S ZNA software page (https://www.rohde-schwarz.com/software/zna/), run it, and follow the on-screen instructions.

  • Page 13: Remote Control Connections

    Software Utility Remote Control Connections Setup with a VDI Erickson Power Meter 5 Remote Control Connections The following sections describe the required remote control connections between Lev- eling Tool PC, VNA, and power meter. The required connections are the same for all supported instruments, so we use the R&S ZNA as a typical example.
  • Page 14 Software Utility Remote Control Connections Setup with a VDI Erickson Power Meter The Leveling Tool uses a LAN connection operate the VNA (read/write settings, query results). To add support for the VDI Erickson power meters, the Leveling Tool installs a suitable power meter driver on the VNA and sets up an external power meter connec- tion using this driver.

  • Page 15: Preparing Analyzer And Converters

    Software Utility Preparing Analyzer and Converters Vector Network Analyzers R&S ZNA 6 Preparing Analyzer and Converters Before using the Leveling Tool, establish all connections between the frequency con- verters and the network analyzer. For details, refer to references no. [3] and [4] in Chapter 10, "Additional Information", on page 33.

  • Page 16: Vector Network Analyzers R&S Zva And R&S Zvt

    Software Utility Preparing Analyzer and Converters Vector Network Analyzers R&S ZVA and R&S ZVT 6.2 Vector Network Analyzers R&S ZVA and R&S ZVT If R&S ZVA-B8 is installed and you are using converters with electronical attenuators, don't forget to establish the the power control cable connection. At the analyzer GUI, proceed as follows: 1.
  • Page 17 Software Utility Preparing Analyzer and Converters Vector Network Analyzers R&S ZVA and R&S ZVT Figure 6-2: System Configuration > Frequency Converter tab For frequency converters of the R&S ZCxxx family make sure the converters are individually assigned to their respective ports: Getting Started 1331.3069.02 ─...

  • Page 18: Program Start And Vna Remote Control

    Software Utility Program Start and VNA Remote Control 7 Program Start and VNA Remote Control Before starting the Leveling Tool, ensure that you have carried out all the preparative steps described in Chapter 6, "Preparing Analyzer and Converters", on page 15. Whenever you start the Leveling Tool, you are requested to establish a remote control connection to the analyzer.
  • Page 19 Software Utility Program Start and VNA Remote Control Otherwise a warning message is displayed, e.g. Select "OK" to return to the "Select Connection Configuration" dialog. 4. In the "Select Connection Configuration" dialog, click "OK" to establish the connec- tion or "Cancel" to abort the connection attempt. You can start another connection attempt by selecting "Configuration"...

  • Page 20: External Power Meters: Control Connection

    Software Utility External Power Meters: Control Connection R&S NRP110T or R&S NRP-Z58 8 External Power Meters: Control Connection Before the leveling can be performed, the power meter has to be configured in the ana- lyzer firmware and the control connection between analyzer and power meter must be established.

  • Page 21: Vdi Erickson Pm4 Or Pm5

    Software Utility External Power Meters: Control Connection VDI Erickson PM4 or PM5 Figure 8-2: Auto config for R&S NRP-Z58 (R&S ZVA or R&S ZVT) 8.2 VDI Erickson PM4 or PM5 The control connection between the VNA and a VDI Erickson PM5 or PM4 is estab- lished via the Leveling Tool.
  • Page 22 Software Utility External Power Meters: Control Connection VDI Erickson PM4 or PM5 or directly), check the Windows Device Manager to find out which COM port is assigned to it (to the device itself or the adapter). ● "Device Id" (PM5 only) Only relevant if multiple PM5s are connected to the Leveling Tool PC.

  • Page 23: Working With The Leveling Tool

    Software Utility Working with the Leveling Tool Remote Control Connection Functions 9 Working with the Leveling Tool Run the Leveling Tool and establish the required remote control connections as descri- bed in Chapter 7, "Program Start and VNA Remote Control", on page 18 and Chap- ter 8, "External Power Meters: Control...

  • Page 24: Calibration Settings

    Software Utility Working with the Leveling Tool Calibration Settings Configuration Opens the "Select Connection Configuration" dialog that allows to establish a remote control connection to a VNA. See Chapter 7, "Program Start and VNA Remote Con- trol", on page 18. PM4/PM5 Opens the configuration dialog for VDI Erickson power meters PM4 and PM5, respec- tively.
  • Page 25 Software Utility Working with the Leveling Tool Calibration Settings Frequency From/To and Sweep Points Defines the frequency values of the leveling grid. By default the Leveling Tool uses the standard frequency range of the selected fre- quency converter type and 201 sweep points. However you can also specify different parameters or load the current sweep settings from the analyzer (see "Load from VNA"...

  • Page 26: Calibration Commands

    Software Utility Working with the Leveling Tool Calibration Commands Keep in mind that the total time for the reference receiver calibration (step 1) is approx- imately given as the product of "Sweep Points" and "Meas. Delay Time". At the lowest power range of the PMx, the reference receiver calibration can easily take several tens of minutes, as the response time is in the range of several tens of seconds.
  • Page 27 Software Utility Working with the Leveling Tool Calibration Commands The manual calibration steps must be performed in ascending order. Requesting man- ual calibration step M causes the Leveling Tool to execute missing steps 1 to M-1 auto- matically, preserving the results of steps < M that have already been executed and dropping the results of steps >...
  • Page 28 Software Utility Working with the Leveling Tool Calibration Commands Figure 9-3: Reference Receiver Calibration (R&S ZVA Firmware) Make sure the power meter is connected to the frequency converter test port before executing this command. Otherwise the following error message is displayed: Manual Calibration >...
  • Page 29 Software Utility Working with the Leveling Tool Calibration Commands The RF-In level is decreased from "Max. RF-In Level" to "Min. RF-In Level", with steps of "RF-In Level Step Size" (see "Min./Max. RF-In Level and RF-In Level Step Size" on page 25). For each RF-In Level a frequency sweep with the configured Frequency From/To and Sweep Points is performed:...
  • Page 30 Software Utility Working with the Leveling Tool Calibration Commands The results are also stored within the frequency converter "User Data Set" created in step Activate Cal Data Activates the calibration data obtained in step In the R&S ZNA firmware, this activates "Power Control" mode "User" for the related frequency converter port, and activates the "Data Set"...

  • Page 31: Operating The Leveling Tool

    Software Utility Working with the Leveling Tool Operating the Leveling Tool In the R&S ZVA or R&S ZVT firmware, this selects control method "RF In Power (and Electronic Attenuator) with Data Set" for the related frequency converter port and acti- vates the "Data Set"...
  • Page 32 Software Utility Working with the Leveling Tool Operating the Leveling Tool Loading the calibration data manually You can also load previously generated calibration data manually using the analyzer's graphical user interface. This involves two steps: ● R&S ZNA: – Open the "Leveling Dataset Configuration" dialog (System – [Setup] > "Fre- quency Converter"...

  • Page 33: Additional Information

    Software Utility Additional Information 10 Additional Information Application notes related to the frequency converters are available for download at https://www.rohde-schwarz.com/application/zvaz. Operating manuals and help sys- tems for network analysis including frequency converters are also available for down- load; see https://www.rohde-schwarz.com/product/zna. 1.

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