Keysight M9360A Service Manual

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Service Guide

Keysight M9360A PXI

Attenuator/Preselector 100 KHz to 26.5 GHz

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Notices

No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Keysight Technologies, Inc. as governed by United States and international copyright laws.

Manual

M9360-90009

Published By

Keysight Technologies Ground Floor and Second Floor, CP-11 Sector-8, IMT Manesar – 122051 Gurgaon, Haryana, India

Edition

1.1.0

Printed

Regulatory Compliance

This product has been designed and tested in accordance with accepted industry standards, and has been supplied in a safe condition. To review the Declaration of Conformity, go to

http://www.keysight.com/go/conformity.

Warranty

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYSIGHT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE

Part

USA

Number

FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR OF ANY INFORMATION CONTAINED HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT SHALL CONTROL.

KEYSIGHT TECHNOLOGIES DOES NOT WARRANT THIRD-PARTY SYSTEMLEVEL (COMBINATION OF CHASSIS, CONTROLLERS, MODULES, ETC.) PERFORMANCE, SAFETY, OR REGULATORY COMPLIANCE, UNLESS SPECIFICALLY STATED.

Technology Licenses

The hardware and/or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license.

U.S. Government Rights

The Software is “commercial computer software,” as defined by Federal Acquisition Regulation (“FAR”) 2.101. Pursuant to FAR 12.212 and 27.405-3 and Department of Defense FAR Supplement (“DFARS”) 227.7202, the U.S. government acquires commercial computer software under the same terms by which the software is customarily provided to the public. Accordingly, Keysight provides the Software to U.S. government customers under its standard commercial license, which is embodied in its End User License Agreement (EULA), a copy of which can be found at

http://www.keysight.com/find/sweula. The

license set forth in the EULA represents the exclusive authority by which the U.S. government may use, modify, distribute, or disclose the Software. The EULA and the license set forth therein, does not require or permit, among other things, that Keysight: (1) Furnish technical information related to commercial computer software or commercial computer software documentation that is not customarily provided to the public; or (2) Relinquish

to, or otherwise provide, the government rights in excess of these rights customarily provided to the public to use, modify, reproduce, release, perform, display, or disclose commercial computer software or commercial computer software documentation. No additional government requirements beyond those set forth in the EULA shall apply, except to the extent that those terms, rights, or licenses are explicitly required from all providers of commercial computer software pursuant to the FAR and the DFARS and are set forth specifically in writing elsewhere in the EULA. Keysight shall be under no obligation to update, revise or otherwise modify the Software. With respect to any technical data as defined by FAR

2.101, pursuant to FAR 12.211 and

27.404.2 and DFARS 227.7102, the U.S. government acquires no greater than Limited Rights as defined in FAR 27.401 or DFAR 227.7103-5 (c), as applicable in any technical data.

Safety Notices

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

The following safety precautions should be observed before using this product and any associated instrumentation.

This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the

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safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product.

If this product is not used as specified, the protection provided by the equipment could be impaired. This product must be used in a normal condition (in which all means for protection are intact) only.

The types of product users are:

Responsible body is the individual or group responsible for the use and maintenanceof equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring operators are adequately trained.

Operators use the productfor its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the product to keep itoperating properly (for example, setting the line voltage or replacing consumable materials). Maintenance procedures are described in the user documentation. The procedures explicitly stateif theoperator may perform them. Otherwise, they should be performed only by service personnel.

Servicepersonnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained servicepersonnel may perform installation and service procedures.

Operator is responsible to maintain safe operating conditions. To ensure safe operating conditions, modules should not be operated beyond the full temperature range specified in the Environmental and physical specification. Exceeding safe operating conditions can result in shorter lifespans, improper module performance and user safety issues. When the modules are in use and

operation within the specified full temperature range is not maintained, module surface temperatures may exceed safe handling conditions which can cause discomfort or burns if touched. In the event of a module exceeding the full temperature range, always allow the module to cool before touching or removing modules from chassis.

Keysight products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the user documentation.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000V, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedancelimited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.

The instrument and accessories must be used in accordance with its specifications and operating instructions, or the safety of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.

When fuses are used in a product, replace with the same type and rating

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for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.

Instrumentation and accessories shall not be connected to humans.

Before performing any maintenance, disconnect the line cord and all test cables.

To maintain protection from electric shock and fire, replacement components in mains circuits – including the power transformer, test leads, and input jacks – must be purchased from Keysight. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. Other components that are not safety-related may be purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through Keysight to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call an Keysight office for information.

No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent electrical shock do not remove covers. For continued protection against fire hazard, replace fuse with same type and rating.

PRODUCT MARKINGS:

The CE mark is a registered trademark of the European Community.

Australian Communication and Media Authority mark to indicate regulatory compliance as a registered supplier.

This symbol indicates product compliance with the Canadian Interference-Causing Equipment Standard (ICES-001). It also identifies the product is an Industrial Scientific and Medical Group 1 Class A product (CISPR 11, Clause 4).

South Korean Class A EMC Declaration. This equipment is Class A suitable for professional use and is for use in electromagnetic environments outside of the home. A 급 기 기 ( 업무 용 방 송 통

신 기 자 재 ) 이 기 기 는 업 무 용 (A 급 ) 전 자 파 적 합 기 기 로 서 판 매 자 또 는 사 용 자 는 이 점 을 주 의하 시 기 바 라 며 , 가 정 외 의 지 역 에 서 사 용 하 는 것 을 목 적 으 로 합 니

다 .

This product complies with the WEEE Directive marketing requirement. The affixed product label (above) indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product is classified as “Monitoring and Control instrumentation” product. Do not dispose in domestic household waste. To return unwanted products, contact your local Keysight office, or for more information see

http://about.keysight.com/en/companyinfo/e nvironment/takeback.shtml.

This symbol indicates the instrument is sensitive to electrostatic discharge (ESD). ESD can damage the highly sensitive components in your instrument. ESD damage is most likely to occur as the module is being installed or when cables are connected or disconnected. Protect the circuits from ESD damage by wearing a grounding strap that provides a high resistance path to ground. Alternatively, ground yourself to discharge any builtup static charge by touching the outer shell of any grounded instrument chassis before touching the port connectors.

This symbol on an instrument means caution, risk of danger. You should refer to the operating instructions located in the user documentation in all cases where the symbol is marked on the instrument.

This symbol indicates the time period during which no hazardous or toxic substance elements are expected to leak or deteriorate during normal use. Forty years is the expected useful life of the product.

CLEANING PRECAUTIONS:

To prevent electrical shock, disconnect the Keysight Technologies instrument from mains before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally. To clean the connectors, use alcohol in a well-ventilated area. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate prior to energizing the instrument.

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Table of Contents

Service Guide Introduction 7

Structure of This Document 7 Related Documentation 7

Documentation Map 8

Getting Started 9

Follow the Startup Sequence 9 Step 1: Unpack and Inspect the Module 10

ESD 10

Step 2: Install the Software 10

System Requirements 10 Hardware Requirements 11 Power up the Controller 11 Software Installation Overview 11

Step 3: Install the Module 13

Recommended Practices for Temperature Control 13 Module Installation Procedure 13 Agilent M9360A PXI Attenuator/Preselector Front Panel Features 15

Front Panel Connectors 15 Front Panel LEDs 15

High-Level Diagnostic Tools, Processes and References 16

Specifications 16 Self Test 16 Hardware Status Display 16 Front Panel LEDs 18 Block Diagram 18 Operational Check 19

Performance Verification Tests 23

Insertion Loss above 10 MHz 23 Insertion Loss below 10 MHz 29 YTF 3 dB Bandwidth Test 32

Service 36

Replaceable Parts 36 Module Core Replacement 37 Test Record Card 41

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Service Guide Introduction

This document is intended for use by Agilent Service Centers and by self-maintaining customers.

Structure of This Document

l Getting Started (page 9): Use this section to make sure you have the module installed (software and hard-

ware) as a prerequisite for conducting diagnostic tests.

l High-Level Diagnostic Tools, Processes and References (page 16): This section provides high-level tools,

processes, and references to help you diagnose problems with your module.

l Performance Verification Tests (page 23): These tests are designed to provide the highest level of con-

fidence that the module being tested conforms to published, factory-set specifications. If the module is unable to pass any one of the performance tests, you may need to exchange the defective module (see Mod-

ule Core Replacement on page 37).

l Service (page 36): This section provides reference information and procedures to help you service your Agi-

lent M9360A, including the replaceable parts list, module core replacement instructions, and a Test Record

Card (page 41) you can use to record your performance test findings.

Related Documentation

In addition to this Service Guide, the related documentation for the M9360A module includes:

l Startup Guide: Provides instructions to unpack, inspect, install (software and hardware), perform instru-

ment connections, verify operability, and troubleshoot problems. The key elements from the Startup Guide are duplicated in this Service Guide's Getting Started material (see page 9) for your convenience.

l Data Sheet: Provides a detailed product introduction and full product specifications.

l Soft Front Panel (SFP) help system: Provides product introduction, tour of the SFP user interface, how-to

procedures (for example, configuration, self test, operational check), and troubleshooting.

l IVI Driver reference (help system): Provides documentation of the IVI-COM and IVI-C driver API func-

tions, and information to help you start using the drivers in your application development environment.

l LabVIEW Driver reference (help system): Provides documentation of the LabVIEW G driver API.

If you ran the product software installer on your PC, you can access the related documentation (startup guide, data sheet, SFP help, and LabVIEW help) from Start > Programs > Agilent > M9392 > M9360. For IVI driver help, see Start > Programs > Agilent IVI Drivers > AgM9360.

All the product documentation noted above is provided on the product CD. To find the latest versions of the documentation, go to the product web site (www.agilent.com/find/M9360A) and download the files from the Manuals list (go to Document Library > Manuals).

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Service Guide Introduction

Documentation Map

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Getting Started

Much of this material, although found in the Startup Guide, is available for your convenience to make sure the module and software are properly installed as a prerequisite for conducting diagnostic procedures. If you are familiar with this material, proceed to High-Level Diagnostic Tools, Proc-

esses and References (page 16).

In this section:

l Follow the Startup Sequence (page 9) l Step 1: Unpack and Inspect the Module (page 10) l Step 2: Install the Software (page 10) l Step 3: Install the Module (page 13)

Follow the Startup Sequence

Getting Started

Closely follow the startup process flow in this document. Deviating from the sequence can

cause unpredictable system behavior, damage your system, and may cause personal injury.

Step 1: Unpack

and Inspect

Step 2: Install Drivers and Software

Step 3: Install Module

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Getting Started

Step 1: Unpack and Inspect the Module

The module is shipped in materials which prevent damage from static. The module should only be

removed from the packaging in an anti-static area ensuring that correct anti-static precautions are taken. Store all modules in anti-static envelopes when not in use.

ESD

Electrostatic discharge (ESD) can damage or destroy electronic components. Use a static-safe work station to perform all work on electronic assemblies. The figure (left) shows a static-safe work station using two types of ESD protection: conductive table-mat and wrist-strap combination, and conductive floor-mat and heel-strap combination. Both types, when used together, provide a significant level of ESD protection. Of the two, only the table-mat and wriststrap combination provides adequate ESD protection when used alone. To ensure user safety, the static-safe accessories must provide at least 1MΩ of isolation from ground.

DONOT use these techniques for a staticsafe work station when working on circuitry with a voltage potential greater than 500 volts.

Step 2: Install the Software

System Requirements

Topic Windows®7 and Vista Requirements Windows®XP Requirements

Operating system

Processor speed

Available memory

Available disk space

Video

Browser Microsoft®Internet Explorer 7.0 or greater

This is the required diskspace for installation. Typically, lessdisk space is required for operation than is required for installation.

.NET Framework Runtime Components are installed by default with Windows 7 and Vista. T herefore, you may not need this amount of disk

space.

Windows 7 (32 bit and 64 bit); Windows®Vista, SP1 and SP2 (32-bit and 64-bit)

1 GHz 32-bit (x86), 1 GHz 64-bit (x64), no support for Itanium64

1 GB minimum

1.5 GB available hard disk space, includes:

l 1 GB available for Microsoft .NET Framework 3.5 SP1 l 100 MB for Agilent IO Libraries Suite

Support for DirectX 9 graphics with 128 MB graphics memory recommended (Super VGA graphics is supported)

Window®XP, Service Pack 3

600 MHz or higher required 800 MHz recommended

256 MB minimum (1 GB or greater recommended)

Super VGA (800x600) 256 colors or more

Microsoft®Internet Explorer 6.0 or greater

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Getting Started

Hardware Requirements

Topic Requirements

Chassis Host controller A PXI or PXI Express embedded controller or remote controller (external PC connected to the chassis

by a PCI-to-PXI interface) is required.

Embedded controller

Remote controller (for Agilent M9018A chassis use only) Agilent M9021 Cable Interface x8 with one of the following PC

Agilent M9036A or an embedded controller that meets the following requirements:

l PXIe system controller (PXI-1 embedded controllers are not compatible) l Utilize a 2x8, 4x4, or 1x4 PXIe system slot link configuration. l Run one of the operating systems listed in System Requirements (above).

interface options:

l Agilent M9045B PCIe ExpressCard Adaptor x1, with cable (for a laptop PC) l Agilent M9048A PCIe Desktop Adaptor x8, with cable (for desktop PCs)

Or an equivalent remote controller using a PC running one of the operating systems listed in System Requirements (above).

Power up the Controller

If you are using a remote controller and you have installed the interface cable, you must power up

the chassis BEFORE you power up the PC. When you power down your chassis, Shut Down the PC BEFORE you power down the chassis.

If you are using an embedded controller, complete the following steps:

1. Install the embedded controller module into the compatible chassis. The Agilent M9036A PXIe Embedded Controller and Agilent M9018A PXIe Chassis are recommended. Please refer to the embedded controller and chassis documentation for further details.

2. Connect peripherals (mouse, keyboard, monitor).

3. Power up the chassis.

Software Installation Overview

This installation includes the following:

l Agilent IO Libraries Suite (IOLS), which includes the Agilent Connections Expert. This software is included

with your shipment (CD part number E2094-60003), and is also available at www.agilent.com/find/iosuite. This software must be installed first.

Version 16.3.16603.3 (or newer) of the Agilent IO Libraries Suite is required.

l Instrument software, which includes the SFP, device drivers (IVI-C, IVI-COM, and LabVIEW G) and doc-

umentation for the M9392A Vector Signal Analyzer. This software is included with your shipment (CD part number M9392-10002), and is also available at www.agilent.com/find/M9392A.

1. Install the Agilent IOLibraries Suite from the Agilent IOLibraries Suite CD (E2094-60003) provided in your ship kit. Follow the installer prompts to install the IO libraries.

2. Install the M9360A product software:

a. Using the Agilent M9392A PXI Vector Signal Analyzer Software and Product Information CD

(M9392-10002), launch the installer.

b. Follow the installer prompts. Choose a "Complete" installation to install all software and doc-

umentation, or a "Custom" installation to select from a listing of modules and other features.

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Getting Started

3. Power down the host PC.

If you are using a remote controller, Shut Down the PC BEFORE you power down the chas-

sis. When you restore power, power up the chassis BEFORE you power up the PC.

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Getting Started

Step 3: Install the Module

PXI hardware does not support "hot-swap" (changing modules while power is applied to the chassis)

capabilities. Before installing or removing a module to/from the chassis, power off the chassis to prevent damage to the module.

This module can be used in a chassis with cPCI(J1), PXI-1, or PXIe hybrid slots.

Recommended Practices for Temperature Control

l Use slot blockers and EMC filler panels in empty module slots to assure proper operating temperatures.

l At ambient temperatures above 45° C (113° F) set the chassis fan to High.

l The use of an Agilent M9018A Chassis and slot blockers optimizes module temperature performance.

Module Installation Procedure

The module can be installed in any standard PXI slot marked with a peripheral slot compatibility image (a circle containing the slot number).

The module can also be installed in any hybrid PXI slot marked with a peripheral slot compatibility image (the letter “H” and a solid circle containing the slot number).

1. Make sure that the line cord is plugged in to establish earth ground and that the chassis power switch is Off .

2. If the chassis has multiple fan speed settings, ensure that the fan switch is set to AUTO.

3. Position the chassis to provide ample space between the chassis fan intake and exhaust vents. Blockage by walls or obstructions affects the air flow needed for cooling. (Refer to the chassis documentation for more information about cooling).

4. Before inserting the module into the chassis, back the mounting screws out to ensure that there is no interference between the screws and the mounting rails.

5. Holding the module by the injector/ejector handle, slide it into an available PXI (or hybrid) slot, as shown in the figure below.

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Getting Started

a. Install the module into the slot

of the chassis by placing the module card edges into the front module guides (top and bottom).

b. Slide the module to the rear of

the chassis and ensure that the injector/ejector handle is pushed down in the unlatched (downward) position.

c. Slide the module completely

into the chassis. When you begin to feel resistance, pull up on the injector/ejector handle to fully inject the module into the chassis.

7. Secure the front panel to the chassis using the two module front-panel mounting screws. Performance may suffer if the screws are not tightened properly.

8. Verify that the PXI chassis fans are operable and free of dust and other contaminants that may restrict airflow.

9. Install filler panels and slot blockers after installing the module. Missing filler panels or slot blockers may disrupt air circulation in the chassis.

10. Use the Cabling Diagram plus the Cable and Module Table on the next page to attach the cables to the instrument. The torque specification for SMA connectors is 8 Lb-In (0.904 Nm).

11. If you are using a PCIe Cable Interface, such as the Agilent M9021, connect the Cable Interface in the chassis to the PChost per the instructions that came with the Cable Interface.

12. Power up the PXI chassis.

13. Reboot the PC host.

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Agilent M9360A PXI Attenuator/Preselector Front Panel Features

The maximum input to the RF input connector (RF IN) must not exceed +30 dBm.

Front Panel Connectors

Connector Description

RF IN This APC 3.5 mm female connector inputs a signal (100 kHz to 26.5 GHz) that

can be attenuated and be directed to either the RF 1 OUT connector or the RF 2 OUT connector.

RF 1 OUT This SMA female connector supplies an output signal (100 kHz to 2.9 GHz) to

the RF IN connector of the Agilent M9351A PXI Downconverter.

RF 2 OUT This SMA female connector supplies an output signal (2.75GHz to 26.5 GHz) to

the RF IN connector of the Agilent M9361A PXI Downconverter.

LO IN This SMA female connector receives the LO signal from the Agilent M9302A

Local Oscillator. This LO signal is then internally switched to the LO 1 OUT or LO 2 OUT connector.

LO 1 OUT This SMA female connector provides the LO signal to the Agilent M9351A PXI

Downconverter.

LO 2 OUT This SMA female connector provides the LO signal to the Agilent M9361A PXI

Downconverter.

Getting Started

The front panel LED behavior is valid only when the soft front panel (SFP) is running or when the Ini-

tialize

function/method has been called, using the application programming interface (API).

Front Panel LEDs

LED Description

STATUS This LED indicates the overall health of the M9360A and is a summary of

the following LEDs, covering the power supplies and other hardware operations. The M9360A has extensive built-in-test (BIT) and specific issues can be identified by observing the status indicator on the front panel. This LED has four possible states:

l Green = Power supplies are operational and in specification. It

also indicates that all module hardware is operational.

l Amber = Power supplies are operational and in specification, but

there is a hardware failure.

l Red = Power supply failure and a hardware failure. l Off = Power supply failure, but the other module hardware

appears to be functional. Since a power supply failure can mask other hardware problems, this is not an indication that only a power supply could be at fault.

ACCESS Each time the module is written to, or read from, this amber LED blinks.

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High-Level Diagnostic Tools, Processes and References

This section provides high-level tools, processes, and references to help you diagnose problems with your module.

Before attempting to diagnose the Agilent M9360A, make sure you have followed the necessary

startup instructions (see "Getting Started" on page 1).

In this section:

l Specifications (page 16)

l Self Test (page 16)

l Front Panel LEDs (page 18)

l Block Diagram (page 18)

l Operational Check (page 19)

Specifications

The Data Sheet for the is included on the Agilent M9392A VSA Software and Product Information CD that came with your module.This document contains specification information. To find the latest update, go to

http://cp.literature.agilent.com/litweb/pdf/5990-6057EN.pdf.

Self Test

The Soft Front Panel (SFP) provides a self test utility to verify power and perform an internal check of module sub-components. To access the SFP, go to Start > All Programs > Agilent > M9392 > M9360 SFP. To conduct the self test from the SFP, go to Utility > Self Test..., and then click the Run Self Test button.

Hardware Status Display

The Soft Front Panel (SFP) displays the module's hardware status. To access the SFP, go to Start > All Programs > Agilent > M9392 > M9360 SFP. The status is automatically updated once every five seconds. The status can also be manually updated by a refresh (View > Refresh).

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High-Level Diagnostic Tools, Processes and References

l Temperature – the tem-

perature value that is displayed indicates the internal real-time ambient temperature of the module in degrees Celsius.

l Voltage – the +12 V, +5 V,

+3.3 V, and -12 V power supplies display as green when they are functioning and within tolerance.

l Self Test – the word "Pass"

along with a green background color indicates that the module's self test passed. If the self test fails, the word "Fail" is displayed and the background color turns red.

l Serial # – the module's serial number is displayed.

l Estimated Loss

Port Loss – displays the estimated amount of loss that occurs through the RFINport connector.

Preselector Loss – displays the estimated loss that occurs through the YTFpreselector filter path.

Attenuator Loss – displays the estimated loss that occurs through the step attenuator path.

Total Loss – displays the sum of the estimated Port Loss, Preselector Loss, and Attenuator Loss.

l The values for Step Attenuator, Preselector (Enabled and Frequency), and RF Path reflect the settings

you've made in the SFP interface. For reference, refer also to the Block Diagram (page 18).

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High-Level Diagnostic Tools, Processes and References

Front Panel LEDs

The front panel LED behavior is valid only when the soft front panel (SFP) is running or when the Initialize function/method has been called, using the application programming interface (API).

LED Description

STATUS This LED indicates the overall health of the M9360A and is a summary of the

following LEDs, covering the power supplies and other hardware operations. The M9360A has extensive built-in-test (BIT) and specific issues can be identified by observing the status indicator on the front panel. This LED has four possible states:

l Green = Power supplies are operational and in specification. It also

indicates that all module hardware is operational.

l Amber = Power supplies are operational and in specification, but there

is a hardware failure.

l Red = Power supply failure and a hardware failure. l Off = Power supply failure, but the other module hardware appears to

be functional. Since a power supply failure can mask other hardware problems, this is not an indication that only a power supply could be at fault.

ACCESS Each time the module is written to, or read from, this amber LED blinks.

Block Diagram

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High-Level Diagnostic Tools, Processes and References

Operational Check

This operational check procedure is used for high-level troubleshooting – a rough diagnostic to ascertain if the module is functioning properly. You do not have to conduct the operational check if you conduct the Performance Verification Tests (see page 23).

Requirements for Operational Check

The Agilent M9360A PXI Attenuator/Preselector operational check measures the signal paths from the RF IN connector to the RF 1 OUT and RF 2 OUT connectors. The following process demonstrates that all associated switches, connectors, cables and circuitry are operational. The signal paths from the LOINconnector to the LO 1 OUT and LO 2 OUT connectors are also measured.

Required Hardware

To demonstrate that the module works properly requires external equipment. This includes a precision microwave source and a power meter You will not be using the module interconnect cables, so some high-quality flexible 3.5 mm cables will be required, plus adaptors to connect the PSG (precision signal generator) and power sensors to

3.5 mm connectors. Please refer to the following table for recommended hardware.

Hardware Description

Agilent E8257D-532 or E8267D-532 Precision Signal Generator 31.8 GHz Agilent N1913A or N1914A Single / Dual Channel Power Meter Agilent N8485A, Option 100 10 MHz to 26.5 GHz Power Sensor Agilent 11730A Power Sensor Cable Agilent 11667B Power Splitter Agilent N9020A-526 Signal Analyzer (optional)

M9360A Operational Check Procedure

To use a single power meter in place of two power meters and sensors, characterize the PSG output power at the different frequencies and then connect the PSG output directly to the M9360A RF IN. Connect the power sensor to the outputs listed in the procedure below.

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High-Level Diagnostic Tools, Processes and References

Do not exceed the maximum power level to the RF IN connector (+30 dBm).

1. Run the M9360A soft front panel (SFP).

2. Conduct a Self Test (Utility > Self Test... > Run Self Test).

a. If self test passes, go to next step.

b. If self test fails, the module needs repair.

3. Disconnect cables from RF IN, RF 1 OUT, RF 2 OUT, LO IN, LO 1 OUT, and LO 2 OUT

4. Under Primary Settings:

a. Deselect Preselector Enabled to remove the YTF and place the M9360A in “bypass” mode (click

inside the small square to remove the check mark).

b. Set the Input Level to 0 dBm.

5. Select Custom Settings (click inside the small square and a check mark appears).

a. Set the step attenuator to 0 dB.

b. Verify that RF/LO Out 2 (high band) is selected.

6. Set the PSG output to:

a. 0 dBm

b. 3 GHz

c. RF ON

d. Modulation OFF

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High-Level Diagnostic Tools, Processes and References

7. Connect the PSG RF OUTPUT to

a. The power splitter input.

b. Connect a power sensor to one power splitter output.

c. Connect the other power splitter output to the M9360A RF IN.

d. Connect the second power sensor to RF 2 OUT.

8. Step the PSG frequency from 3 GHz to 26.5 GHz in 500 - MHz steps

9. The delta between the power meter readings should be ≤ 7 dB maximum loss between RF IN and RF 2 OUT

at each frequency.

10. Using the M9360A SFP, under Custom Settings:

a. Increase the attenuation to 10 dB.

b. The power meter reading on the RF 2 OUT connector should drop approximately 10 dBm.

c. Continue increasing attenuation in 10 dB steps to 20 dB, and 30 dB. Verify that the RF 2 OUT power

decreased approximately 10 dB with each step.

11. Deselect Custom Settings (click inside the small square and the check mark disappears).

12. Under Primary Settings:

a. Set the Input Frequency to 3 GHz.

b. Select Preselector Enabled (click inside the small square and a check mark appears).

c. Set the Input Level to -40 dBm (this sets the Preselector internal attenuator to 0 dB).

13. Step the PSG frequency from 3 GHz, to 26.5 GHz in 500 - MHz steps and set the Input Frequency to the same frequency as the PSG. If the frequency is in italics, press the keyboard return key.

a. The delta between the power meter readings should be ≤ 12 dB maximum loss between RF In and

RF 2 OUT at each frequency.

b. Deactivate Preselector Enabled (click inside the small square and the check mark disappears).

14. Under Primary Settings:

a. Set the Input Frequency to 2 GHz.

b. Move the power sensor from RF 2 OUT to RF 1 OUT.

c. Set the PSG to 0 dBm, 100 MHz, RF ON, Modulation OFF.

d. Step the frequency from 100 MHz to 3 GHz in 500 - MHz steps.

e. The delta between the power meter readings should be ≤ 2 dB maximum loss between the RF IN and

RF 1 OUT.

15. Under Primary Settings; set the Input Frequency to 5 GHz

16. On the PSG:

a. Set the power to 0 dBm, frequency to 3 GHz, RF- ON, Modulation - Off.

b. Move the cable from the RF IN to LO IN.

c. Move the power sensor from RF 1 OUT to LO 2 OUT.

d. Step the PSG frequency from 3 GHz to 10 GHz in 500 - MHz steps.

e. The delta in power between LO IN and LO 2 OUT should be ≤ 1dB.

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High-Level Diagnostic Tools, Processes and References

17. Under Primary Settings:

a. Set the Input Frequency to 2 GHz.

b. Move the power sensor from LO 2 OUT to LO 1 OUT.

c. Step the PSG frequency from 3 GHz to 10 GHz in 500 - MHz steps.

d. The delta in power between LO IN and LO 1 OUT should be ≤ 1dB.

18. If all measurements are correct the module is working properly, if not the module requires servicing.

If a Problem is Found

If a problem is found, do the following checks:

1. Verify that all relevant hardware is turned on.

2. Verify that the signal generator is set to the proper power/frequency and that all cables are properly connected. All SMA connector are torqued to 8 Lb-In (0.904 Nm).

3. Check that the Status LED is green.

4. Verify that the ACCESS LED flashes each time that the module is written to.

5. See Performance Verification Tests (page 23) to verify the module is performing according to published, factory-set specifications.

If you need to swap a defective module with a core replacement module from Agilent, see Module Core Replace-

ment (page 37).

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Performance Verification Tests

The performance verification tests are designed to provide the highest level of confidence that the module being tested conforms to published, factory-set specifications. The tests are designed to test a module operating within the temperature range defined by the module specifications. If the module is unable to pass any of the performance tests, you may need to exchange the defective module for a new one – see Module Core Replacement (page 37). Use the provided Test Record Card (page 41) to record your findings.

Before attempting to conduct performance tests with the Agilent M9360A, make sure you have fol-

lowed the necessary startup instructions (see "Getting Started" on page 9).

Performance verification tests:

l Insertion Loss above 10 MHz (page 23)

l Insertion Loss below 10 MHz (page 29)

l YTF 3 dB Bandwidth Test (page 32)

Insertion Loss above 10 MHz

Test Method

This test measures the insertion loss (above 10 MHz) from the M9360A RF IN port to the RF 1 OUT port. This test also measures the insertion loss (above 10 MHz) from the RF IN port to the RF 2 OUT port through the preselector bypass path as well as the YTF path (for reference on paths, see "Block Diagram" on page 18). This test also measures the insertion loss (above 10 MHz) from the LO IN port to the LO 1 OUT and LO 2 OUT ports.

Limitations and Considerations

Limitations

This measurement cannot be easily made with a signal generator and power meters/sensors due to the proximity of connectors on the M9360A. The use of right-angle SMA adaptors are necessary for feasible connections and may degrade the signal enough to make it immeasurable at higher frequencies. Test times will become very large if sensor/adaptor characterizations are needed; therefore, it is clear that a network analyzer best fits the needs of this measurement.

Methodology

This measurement is made using a vector network analyzer (VNA). The methodology was selected when considering the test time as well as the connections necessary. It is assumed that this measurement is performed manually. The use of a VNA allows for swept measurements as well as direct measurement on the input and output ports without the need for adaptors. The VNA cannot measure the full frequency range of the M9360A module; therefore, frequencies below 10 MHz are made using an RF signal source and power meter in a procedure that is documented separately (see "Insertion Loss below 10 MHz" on page 29).

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Performance Verification Tests

Specification

Table 1

Insertion Loss Conditions Source

≤ 2 dB RF IN to RF 1 OUT, 100 kHz to 2.9 GHz, minimum attenuation

≤ 6 dB RF IN to RF 1 OUT, 2.9 GHz to 26.5 GHz, minimum attenuation

≤ 7 dB RF IN to RF 2 OUT (Bypass), minimum attenuation

≤ 1 dB LO IN to LO 1 OUT, ≤ 10 GHz

≤ 1.5 dB LO IN to LO 1 OUT, ≤ 26.5 GHz

≤ 1 dB LO IN to LO 2 OUT, ≤ 10 GHz

≤ 1.5 dB LO IN to LO 2 OUT, ≤ 26.5 GHz

Equipment

Table 2

Equipment Supported Models Notes

Other models include N5244A; N5230C Opt 525; N5230C Opt 520;

Vector Network Analyzer (VNA)

Calibration Kit

Cables 85133D cable kit

Agilent N5245A

Agilent N4691B ECal Opt OOF; 85052B

N5230C Opt 425; N5230C Opt 420; E8361C; E8362C; E8363C; E8364C. If you use one of these models, download the uncertainty calculator to calculate (worse-case) the uncertainty values for the measurements: www.agilent.com/find/na_calculator.

The supported models listed here assume N5245A. The VNAs specified are configured with 2.4 mm and 1.85 mm. Appropriate cables and adaptors are needed to connect to the M9360A 3.5 mm female connectors.

M9360A Data Sheet

Cable 8121-1221 Coaxial cable, 3.5 mm (m) connectors, 1220 mm length

Adaptor 83059A Coaxial adaptor, 3.5 mm (m) to 3.5 mm (m)

Adaptor 11901C Adaptor, 2.4 mm (m) to 3.5 mm (f)

Adaptor 11901D Adaptor, 2.4 mm (f) to 3.5 mm(m)

Test Configuration

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Performance Verification Tests

Test Procedure

Test Setup

1. Turn on the VNA and allow it to warm up for 90 minutes.

2. Install the M9360A into the PXI chassis.

3. Turn on the PXI chassis and allow it to warm up for 15 minutes.

4. Connect the cables and adaptors to the VNA so that the ends of both cables have 3.5 mm male connectors.

5. Preset the VNA.

6. Configure the VNA as shown in Table 3.

Table 3

Parameter Value Notes

Start Frequency 10 MHz

Stop Frequency 26.5 GHz

RF Output Power -15 dBm Use preset value

IF Bandwidth 1 kHz

Number of Trace Points 601

Calibrate the Vector Network Analyzer

There are two options for calibrating the VNA: use Option A or Option B as noted below.

Option A. Using an Agilent N4691B ECal module:

1. Connect the ECal module to the VNA. ECal port A connects to VNA PORT 1, and ECal port B connects to VNA PORT 2. Connect the USB cable between the ECal module and the VNA.

2. Allow the ECal to warm up and indicate a READY status.

3. Perform a full two-port calibration on the VNA.

4. Press the Cal key on the VNA.

5. From the softkey menu, press Start Cal, and then Cal Wizard.

6. In the Calibration Wizard Begin dialog box, select Use Electronic Cal (ECal) and then click the Next button.

7. Follow the ECal wizard instructions for a full two-port calibration, relying on the calibration data stored in the ECal module.

Option B. Using an Agilent 85052B Calibration Kit:

1. In the Calibration Wizard Begin dialog box, click SmartCal (GUIDED Calibration), use Mechanical Standards, and then click the Next button.

2. Follow the wizard instructions for a full two-port calibration.

3. When prompted for the type of thru calibration, select Unknown Thru Cal.

4. Set the VNA set Single Trigger mode.

5. Set the VNA Meas to S21 (measurement mode).

6. Set the VNA Format to Log Mag.

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Performance Verification Tests

Setup for LO Paths Measurements

1. Connect the equipment as shown in the Test Configuration diagram above (see page 24):

a. Connect VNA PORT 1 to LO IN on the M9360A.

b. Connect VNA PORT 2 to LO 1 OUT on the M9360A.

2. Open the M9360A Soft Front Panel and configure the M9360A as shown in Table 4.

Table 4

Parameter Value Notes

Input Frequency n/a This setting is not important to the measurement.

Input Level n/a This setting is not important to the measurement.

Preselector Enabled Unchecked

Custom Settings Checked

Step Attenuator 0 dB

RF/LO OUT 1 (Low-band) This setting applies to the LO 1 OUT path.

Measurement - LO 1 OUT Insertion Loss

1. Take a sweep on the VNA.

2. Select Scale > AutoScale on the VNA.

3. Select Search >Min (perform min marker search).

4. Record the marker value as the Measured Insertion Loss of the LO 1 OUT path (use the Test Report Card – page 41).

Measure LO 2 OUT Insertion Loss

1. Disconnect the cable from LO 1 OUT on the M9360A, and connect it to LO 2 OUT on the M9360A. For reference, see the Test Configuration diagram above (see page 41).

2. Configure the M9360A Soft Front Panel as shown in Table 5.

Table 5

Parameter Value Notes

RF/LO OUT 2 (High-band) This setting applies to the LO 2 OUT path.

3. Take a sweep on the VNA.

4. Select Scale > AutoScale on the VNA.

5. Select Search >Min (perform min marker search).

6. Record the marker value as the Measured Insertion Loss of the LO 2 OUT path (use the Test Report Card – page 41).

Setup for RF Paths Measurements

1. Connect the equipment as shown in the Test Configuration diagram above (see page 24):

a. Disconnect the cable from LO IN on the M9360A, and connect it to RF IN on the M9360A.

b. Disconnect the cable from LO 2 OUT on the M9360A, and connect it to RF 1 OUT on the M9360A.

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Performance Verification Tests

2. Configure the M9360A Soft Front Panel as shown in Table 6.

Table 6

Parameter Value Notes

RF/LO OUT 1 (Low-band) This setting applies to the RF 1 OUT path.

3. Configure the VNA as shown in Table 7.

Table 7

Parameter Value Notes

Stop Frequency 2.9 GHz According to the specification of RF 1 OUT.

Measure RF 1 OUT Insertion Loss ≤ 2.9 GHz

1. Take a sweep on the VNA.

2. Select Scale > AutoScale on the VNA.

3. Select Marker Search >Min (perform min marker search).

4. Record the marker value as the Measured Insertion Loss (≤ 2.9 GHz) of the RF 1 OUT path (use the Test Report Card – page 41).

Measure RF 1 OUT Insertion Loss 2.9 GHz to 26.5 GHz

1. Configure the VNA as shown in Table 8.

Table 8

Parameter Value Notes

Start Frequency 2.9 GHz According to the specification of RF 1 OUT.

Stop Frequency 26.5 GHz According to the specification of RF 1 OUT.

2. Take a sweep on the VNA.

3. Select Scale > AutoScale on the VNA.

4. Select Marker Search >Min (perform min marker search).

5. Record marker value as the Measured Insertion Loss (> 2.9 GHz) of the RF 1 OUT path (use the Test Report Card – page 41).

Measure RF 2 OUT (bypass) Insertion Loss

1. Disconnect the cable from RF 1 OUT on the M9360A, and connect it to RF 2 OUT on the M9360A.

2. Configure the M9360A Soft Front Panel as shown in Table 9.

Table 9

Parameter Value Notes

RF/LO OUT 2 (High-band) This setting applies to the RF 2 OUT path.

3. Configure the VNA as shown in Table 10.

Table 10

Parameter Value Notes

Start Frequency 10 MHz According to the specification of RF 2 OUT(bypass).

Stop Frequency 26.5 GHz According to the specification of RF 2 OUT(bypass).

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Performance Verification Tests

4. Take a sweep on the VNA.

5. Select Scale > AutoScale on the VNA.

6. Select Marker Search >Min (perform min marker search).

7. Record the marker value as the Measured Insertion Loss of the RF 2 OUT (bypass) path (use the Test Report Card – page 41).

Measure RF 2 OUT (YTF) Insertion Loss

1. Configure the M9360A Soft Front Panel as shown in Table 11.

Table 11

Parameter Value Notes

Preselector Enable Checked Only needs to be done in unchecked, You should

hear a "click" indicating a path has been selected..

Custom Settings Unchecked

Input Frequency First/next frequency See Table 12 - Test Points.

Input Levels -15 dBm (same as VNA

power)

Custom Settings Checked

Step Attenuator 0 dB

RF/LO OUT 2 (High-band) This setting applies to the LO 2 OUT path.

This setting is not important to the measurement, it will affect the attenuator which is manually set.

NOTE: For each measurement iteration (frequency) in Table 12, be sure to apply the Table 11 settings in the specific order (top to bottom in the table).

Table 12 - Test Points

Parameter Value

2.8 GHz

3.1 GHz

RF Center Frequency for YTF path

10.0 GHz

20.0 GHz

26.45 GHz

2. Configure the VNA as shown in Table 13.

Table 13

Parameter Value Notes

Center Frequency Same as M9360A Should match Input Frequency of M9360A.

Span 100 MHz Get full YTF shape on screen.

3. Take a sweep on the VNA.

4. Select Scale > AutoScale on the VNA.

5. Set Marker at VNA center frequency.

6. Record the marker value as the Measured Insertion Loss of the RF 2 OUT (bypass) path (use the Test Report Card – page 41).

7. Repeat steps 1-6 above for each frequency in Table 12 - Test Points.

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Performance Verification Tests

Measurement Uncertainty

The insertion loss measurement is measured directly by the Agilent N5245A VNA. The VNA’s accuracy, when measuring insertion loss, is specified to be ± 0.2 dB. For the purposes of this test, this is the expanded measurement uncertainty.

If you use a VNA other than the Agilent N5245A (such as the other potential VNAs listed in the equipment list), you will need to download the uncertainty calculator to calculate (worse-case) the uncertainty values for the measurements you record in the test record card (see page 41): www.agilent.com/find/na_calculator.

Insertion Loss below 10 MHz

Test Method

This test measures the insertion loss (below 10 MHz) of the M9360A, from the RF IN port to the RF 1 OUT port and the RF 2 OUT port when in the preselector bypass setting. This test also measures the insertion loss (below 10 MHz) from the LO IN port to the LO 1 OUT and LO 2 OUT ports.

Limitations and Considerations

Methodology

This measurement is made using a signal source, two-resistor splitter and power meters/power sensors.

Specification

Table 1

Insertion Loss Conditions Source

≤ 2 dB RF IN to RF 1 OUT, 100 kHz to 2.9 GHz, Minimum Attenuation

≤ 7 dB RF IN to RF 2 OUT (Bypass), Minimum Attenuation

≤ 1 dB LO IN to LO 1 OUT,≤ 10 GHz

≤ 1 dB LO IN to LO 2 OUT,≤ 10 GHz

M9360A Data Sheet

Equipment

Table 2

Equipment Supported Models Notes

Signal Source Agilent E8267D; E8257D,

Power Meter Agilent N1914A; N1912A; E4419B

Two-resistor splitter Agilent 11667A (Opt 001/002)

Power Sensor (2 each) Agilent N8482A; E9304A; 8482A

Adaptor: 3.5 mm (m) to Type-N (m) 1250-1743 Splitter to 1250-1748

Adaptor: 3.5 mm (m) to Type-N (f) 1250-1750 Sensor to M9360A

Adaptor, right angle SMA 1250-1397 Sensor to M9360A

Adaptor, 3.5 mm (m) to 3.5 mm (m) (qty2) 1250-1748; 83059A; 1250-1159 Sensor to M9360A

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Performance Verification Tests

Test Configuration

Test Procedure

Test Setup

1. Turn on the power meter (with power sensors connected) and the signal source. Allow 90-minute warm-up.

2. Install the M9360A into the PXI chassis.

3. Turn on the PXI chassis and allow it to warm up for 15 minutes.

4. Perform a power meter zero and calibration on both power sensors.

5. Preset the signal source and the power meter.

6. Configure the signal source as shown in Table 3.

Table 3

Parameter Value

Frequency 250 kHz

RF Output Level -10 dBm

RF Power Off

7. Open the M9360A Soft Front Panel and configure as follows:

Table 4

Parameter Value

Input Frequency 250 kHz

Input Level -10 dBm

RF IN to RF 1 OUT measurement

1. Connect the RF output of the signal generator to the input of the two-resistor splitter using an RF cable and appropriate adaptors.

2. Connect the channel A power sensor to an output port of the two-resistor splitter.

3. Connect the other output port of the two-resistor splitter to the RF IN port of the M9360A module, using an appropriate adaptor.

4. Connect the channel B power sensor to the RF 1 OUT port of the M9360A, using the right angle SMA and

3.5 mm (m) to 3.5 mm (m) adaptors.

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5. Set the RF power of the signal source to ON.

6. Configure the M9360A as shown in Table 5.

Table 5

Parameter Value

Preselector Enabled No

RF/LO Out 1 (Low band)

Step Attenuator 0 dB

7. For each frequency listed in Table 6- Test Points:

Table 6 - Test Points

Frequency

250 kHz

1 MHz

2 MHz

5 MHz

9.9 MHz

Performance Verification Tests

a. Set the power meter frequency. From the N1914A front panel, press the Channel button, highlight the

Frequency field, and enter the frequency for both channels.

b. Note the displayed power for both channels.

c. Calculate the insertion loss as: Channel A power – Channel B power.

d. Record the insertion loss value for RF 1 OUT in the Test Record Card (see page 41).

RF IN to RF 2 OUT measurement

1. Move the Channel B power sensor to the M9360A RF 2 OUT port, using the right angle SMA and 3.5 mm (m) to 3.5mm (m) adaptors.

2. Using the M9360A Soft Front Panel, enable Custom Settings and set the M9360A RF/LO Out to 2 (High band).

3. Repeat steps 7.a. to 7.c. from RF IN to RF 1 OUT measurement in the above procedure.

4. Record the insertion loss value for RF 2 OUT in the Test Record Card (see page 41).

LO IN to LO 1 OUT measurement

1. Move the Channel A power sensor to the LO IN port on the M9360A.

2. Move the Channel B power sensor to the LO 1 OUT port on the M9360A, using the right angle SMA and

3.5 mm (m) to 3.5mm (m) adaptors.

3. Using the M9360A Soft Front Panel, set the M9360A RF/LO OUT to 1 (Low band).

4. Repeat steps 7.a. to 7.c. from RF IN to RF 1 OUT measurement in the above procedure.

5. Record the insertion loss value for LO 1 OUT in the Test Record Card (see page 41).

LO IN to LO 2 OUT measurement

1. Move the Channel B power sensor to the LO 2 OUT port on the M9360A, using the right angle SMA and

3.5 mm (m) to 3.5mm (m) adaptors.

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Performance Verification Tests

2. Using the M9360A Soft Front Panel, set the M9360A RF/LO OUT to 2 (High band).

3. Repeat steps 7.a. to 7.c. from RF IN to RF 1 OUT measurement in the above procedure.

4. Record the insertion loss value for LO 2 OUT in the Test Record Card (see page 41).

Measurement Uncertainty

The expanded uncertainty of measurement for this test (noted as the “Uncertainty” value provided in the Test

Record Card -- see page 41) represents the standard uncertainty of measurement multiplied by the coverage factor

k=2. For normal distribution, this corresponds to a coverage probability of approximately 95%.

YTF 3 dB Bandwidth Test

Test Method

This test uses a spectrum analyzer to measure relative power to determine the 3 dB bandwidth of the M9360A preselector. For this test, 3 dB YTF Bandwidth is defined as the bandwidth between the upper and lower frequencies where the gain of the YTF is 3 dB lower than the gain at the center frequency.

Limitations and Considerations

This test searches for the 3 dB points on either side of the center frequency. The number of trace points chosen provides enough resolution to acquire repeatable, reliable results with a reasonable amount of margin.

Specification

Table 1

Frequency Bandwidth Conditions Source

< 3 GHz 35 MHz (min), 120 MHz (max)

≥ 3 GHz 40 MHz (min), 120 MHz (max)

3 dB Bandwidth M9360A Data Sheet

Equipment

Table 2

Equipment Supported Models Notes

Signal Analyzer Agilent E4440A; N9030A

Signal Source Agilent E8257D; E8267D

Adaptor: 3.5 mm (f) to Type-N(m) Agilent 1250-1744 UUT to Analyzer

Adaptor, SMB (m) to SMA (f) Agilent 1250-0674 if necessary

Adaptor, 3.5 mm (f) to Type-N(f) Agilent 1250-1745 if necessary

Adaptor, 3.5 mm (f) to 3.5 mm (f) Agilent 1250-1749 if necessary

Cable (2 each)

32 Agilent M9360A PXI Attenuator/Preselector Service Guide

Agilent 11500E/F; semi-rigid cables are also acceptable

LO Source to UUT RF Source to UUT

Page 34

Test Configuration

Figure 1

Test Procedure

Test Setup

1. Turn on the signal source and allow for a warm up of 15 minutes.

2. Install the M9360A into the PXI chassis.

3. Turn on the PXI chassis and allow it to warm up for 15 minutes.

4. Preset all equipment.

5. Connect the equipment as seen in Figure 1.

a. Connect the signal analyzer 10 MHz OUT port to the signal source 10 MHz IN port.

Performance Verification Tests

b. Connect the RF OUT of the signal source to the RF IN port of the M9360A preselector.

c. Connect the spectrum analyzer to the RF 2 OUT port of the M9360A preselector.

6. Open the M9360A Soft Front Panel and configure as shown in Table 3.

Table 3

Parameter Value

Center (Input) Frequency See Table 6 - Test Points

Input Level -40 dBm

Custom Settings Unchecked

Preselector Enabled Checked

7. Configure the signal source as shown in .Table 4.

Table 4

Parameter Value

Start Frequency M9360A Center Frequency - 0.1 GHz

Stop Frequency M9360A Center Frequency + 0.1 GHz

Dwell Time 10 ms

Points 1000

8. Configure the signal analyzer as shown in Table 5.

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Performance Verification Tests

Table 5

Parameter Value

Continuous Sweep Yes

Center Frequency M9360A Center Frequency

Input Attenuation 10 dB (preset value)

Span 130 MHz

Sweep Time 10 ms

Sweep Points 1001

Reference Level -40 dBm

Scale 3 dB/div

Trace Max Hold

9. Turn on the RF OUTPUT of the signal source.

Table 6 - Test Points

Parameter Value

2.8 GHz

3.1 GHz

RF Center Frequency

10 GHz

20 GHz

26.45 GHz

Lower 3 dB Point Measurement

1. Wait until at least one source sweep has finished and the filter shape is present on the screen of the signal analyzer.

2. Turn on Marker 1 and set it to the Center Frequency of the signal analyzer.

3. Set the Marker Type as Delta.

4. Move the marker to the left until the marker delta observed is just less than 3 dB.

a. Record the marker amplitude as y1.

b. Record the marker frequency as x1.

NOTE: The marker must be one marker step away from the above 3 dB point and the marker delta should be less than 3 dB.

5. Move the marker to the left one step.

a. Record the marker amplitude as y2.

b. Record the marker frequency as x2.

6. Calculate the lower 3 dB point frequency, x (assuming amplitude of y = -3 dB).

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Upper 3 dB Point Measurement

1. Move the marker to the right until the marker delta observed is just less than 3 dB.

a. Record the marker amplitude as y1.

b. Record the marker frequency as x1.

NOTE: The marker must be one marker step away from the above 3 dB point and the marker delta should be less than 3 dB.

2. Move the marker to the right one step.

a. Record the marker amplitude as y2.

b. Record the marker frequency as x2.

3. Calculate the lower 3 dB point frequency, x (assuming amplitude of y = -3 dB).

3 dB Bandwidth Measurement

1. Calculate the 3 dB bandwidth:

Performance Verification Tests

2. Record the 3 dB measurement bandwidth value for RF 2 OUT in the Test Record Card (see page 41).

Loop Through Test Point Table

1. Repeat steps Test Setup (Step 7) through 3 dB Bandwidth Calculation (Step 1) for each frequency in Table 6 - Test Points.

Measurement Uncertainty

The expanded uncertainty of measurement for this test (noted as the “Uncertainty” value provided in the Test

Record Card -- see page 41) represents the standard uncertainty of measurement multiplied by the coverage factor

k=2. For normal distribution, this corresponds to a coverage probability of approximately 95%.

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Service

This section provides reference information and procedures to help you service your Agilent M9360A .

In this section:

l Replaceable Parts (page 36)

l Module Core Replacement (page 37)

l Test Record Card (page 41)

Replaceable Parts

Cable Reference

Where Used

Accessory Hardware n/a 5023-1450 Wrench, socket, 5/16 inch Accessory Hardware n/a 5002-3361 SMB/MMCX Removal Tool All PXI Modules n/a 1440-0655 Injector/Ejector assembly M9361A IF OUT to M9202A

INPUT 1 M9302A REF 2 OUT to

M9202A REF IN M9351A REF IN to M9302A

REF 2 OUT M9351A IF OUT toM9361A

AUX IN M9302A LO OUT to M9360A

LO IN M9360A RF 1 OUT to M9351A

RF IN M9360A RF 2 OUT to M9361A

RF IN M9360A LO 2 OUT to M9361A

LO IN M9360A LO 1 OUT to M9351A

LO IN M9360A PXI Attenuator/

Preselector 100 kHz to 26.5 GHz

M9360A PXI Attenuator/ Preselector 100 kHz to 26.5 GHz

Designator

C3 8120-5531 Cable, SMB - SMA coaxial (190 mm)

C4 8121-2042 Cable, A06/A32 80G (SMB – MMCX)

B1 8120-5016 Cable, coaxial. SMB-SMB (160 mm)

B2 8121-2072 Cable, coaxial, SMB-SMB (75 mm)

A1 M9360-20001 Cable, semi-rigid, Master LO

A2 M9351-20001 Cable, semi-rigid, SMA-SMA

A3 M9361-20001 Cable, semi-rigid SMA-SMA

A4 M9361-20002 Cable, semi-rigid SMA-SMA

A5 M9351-20002 Cable, semi-rigid SMA-SMA

n/a M9360-60003

n/a M9360-69003

Agilent Part Number Description

PXI Attenuator/Preselector 100 kHz to 26.5 GHz replacement core assembly

PXI Attenuator/Preselector 100 kHz to 26.5 GHz replacement core assembly EXCHANGE

36 Agilent M9360A PXI Attenuator/Preselector Service Guide

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Module Core Replacement

Ordering a core replacement module

1. Contact Agilent (see www.agilent.com/find/assist).

2. Order a core replacement for your module (part number M9360-60003).

3. When the core replacement arrives, the package includes:

l Entitlement Certificate l Replacement module l Calibration certificate for the replacement module l RMA number l Return instructions

Replacing the defective module

Before opening a packaged module for troubleshooting, ensure that all ESD (electrostatic discharge)

precautions are observed. Refer to ESD (page 10) for details.

1. Power down the chassis.

2. Remove the defective module from the chassis.

3. Write down the serial number shown on the side shield of the defective module. You will assign this serial number to the replacement module using the Agilent M9392A Serial Number Update Utility.

Service

4. Remove the replacement module from the box and shipping material.

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Service

5. Remove the side shield from the defective module.

a. Using a Philips #1 (PH1) screwdriver, remove the two screws that secure the side shield to the

module. NOTE: Keep the screws; extra screws are not included with the replacement module.

b. Slide the shield toward the module's front panel. This aligns the engagement tabs so you can remove

the shield.

38 Agilent M9360A PXI Attenuator/Preselector Service Guide

Page 40

c. Raise the side shield and lift it away from the module.

Service

6. Remove the side shield from the replacement module, using the same process as in Step 5 above.

7. Attach the original side shield from the defective module to the replacement module.

a. Position the side shield so that the screw tabs align with the screw holes on the module, and then

slide the side shield against the front panel.

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Service

b. Lower the side shield so the engagement tabs drop into the slots on the module's printed circuit

board.

c. Back the side shield away from the front panel to align the screw holes.

d. Install the two screws to secure the side shield to the module.

8. Install the replacement module into the chassis.

9. Power up the chassis.

a. If you are using a remote controller, power up the computer. (If you are using an embedded con-

troller, skip to Step 10.)

10. Program the replacement module with the serial number from the defective module.

a. If you don’t already have the Agilent M9392A Serial Number Update Utility, download it from

www.agilent.com/find/M9392A (from this site, select Support Center > Drivers, Updates &

Examples), and install it on your computer or embedded controller.

b. Launch the Agilent M9392A Serial Update Utility (launch from the Start menu program group “Agi-

lent Utilities”) and follow the embedded instructions for programming the serial number.

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Service

11. Attach the side shield from the replacement module to the defective module, and return it to Agilent according to the following procedure:

a. Review the warranty information shipped with your product.

b. Write the following information on a tag and attach it to the malfunctioning equipment:

l Name and address of owner. A P.O. box is not acceptable as a return address.

l Product model number (for example, M9360A).

l Product serial number. The serial number label is located on the side panel of the module. The

serial number can also be read from the Soft Front Panel interface, but only after the hardware is installed.

l Description of failure or service required.

l Return Material Authorization (RMA) number.

c. Pack the module in its original ESD bag and packing carton. If the original carton is not available,

use bubble wrap or packing peanuts and place the instrument in a sealed container and mark the container “FRAGILE”.

d. On the shipping label, write ATTENTION REPAIR DEPARTMENT and the RMA number.

If any correspondence is required, refer to the product by serial number and model number.

Test Record Card

Agilent has provided a Test Record Card you can use to record your findings as you conduct performance verification tests. Click the link below to open the Test Record Card (a PDF form). Save the file to your hard drive and fill in as needed to record your test results.

Open Test Record Card

TIP: Use Ctrl/click to open the Test Record Card as a separate document.

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This information is subject to change without notice. © Keysight Technologies 2010 - 2013 Published in USA, January 17, 2013 M9360-90009

www.keysight.com