OPERATION AND SERVICE MANUAL Advanced Test Equipment
Contents
1. 50n 75N MINIMUM LOSS PAD 87512B NOAA A CALIBRATION SHORT AND LOAD ASTO3002 Figure 3 2 Typical Measurement Setup One Port Measurements One Port Calibration The 87512A B should be calibrated for reflection measurements using the internal calibration function of the analyzer The calibration function requires the standards used to be attached in place of a test device during calibration Refer to the analyzer s manual for a complete description of the calibration procedure 3 2 Operation Reflection Coefficient Return Loss After performing a one port calibration connect the test device to the TEST PORT Then select the A R or S measurement function The reflection coefficient is displayed by selecting the LIN MAG display function The return loss is displayed by selecting the LOG MAG display function Complex Impedance Complex impedance measurements are made by the analyzer s CONVERSION function to convert the reflection coefficient to the impedance parameter Refer to the analyzer s manual Two Port Measurements Two Port Calibration The 87512A B should be calibrated for transmission measurements using the internal calibration function of the analyzer The calibration function requires the standards used to be attached in place of a test device during calibrat2. Manual Changes Introduction This appendix contains the information required to adapt this manual to earlier versions or configurations of the 87512A B than the current printing date of this manual The information in this manual applies directly to the 87512A B Transmission Reflection Test Set serial number prefix listed on the title page of this manual MANUAL CHANGES To adapt this manual to your 87512A B refer to Table A 1 and make all of the manual changes listed opposite your test set s serial number Test sets manufactured after the printing of this manual may be different than those documented in this manual Later test set versions will be documented in a manual changes supplement that will accompany the manual shipped with that test set If your test set s serial number is not listed on the title page of this manual or in Table A 1 it may be documented in a yellow MANUAL CHANGES supplement Table A 1 Manual Changes by Serial Number Serial Prefix or Number Make Manual Changes 30273 and 30453 Change 1 Change 1 Page 1 3 Table Change as follows 1 Carrying Case 87512 60001 87512 60002 1 Manual Changes A 1 Page 1 6 Tabel 1 2 Specifications Change as follows Frequency Range 5 Hz to 500 MHz 5 Hz to 500 MHz Page 1 6 Tabel 1 3 Operating Characteristics Change as follows Equivalent Source Match 30 dB 25 dB Page 2 1 Tabel 2 1 Contents
3. 10 dB to 15 7 dB 4 6 Operational Verification Service This chapter provides the inforamtion for servicing the signal divider of the 87512A B Transmission Reflection Test Kit Figure 5 1 shows the exploded view of the 87512A signal divider 50 Q PN 87511 61001 and the 87512B signal divider 75 Q PN 87511 61002 Table 5 1 lists the replaceable parts for the 87512A signal divider and Table 5 2 lists the replaceable parts for the 87512B signal divider Service 5 1 Q Figure 5 1 87512A B Signal Divider Exploded View 5 2 Service Table 5 1 87512A Signal Divider Replaceable Parts Lists Reference Part No C Qty Description Mfr Mfr Part No Designator D 1 87512 871141 6 1 Label RF IN 28480 87512 87114 2 1250 0549 4 2 Body RF Connector Type N Female 28480 1250 0549 0515 0999 9 4 Screw Mach 28480 0515 0999 3 08742 0006 5 2 Spacer Outer Cond 28480 08742 0006 4 41952 60012 3 1 Inner Conductor Assy 50 Q 28480 41952 60012 5 1250 2229 1 2 Body RF Connector Type N Male 28480 1250 2229 0515 0914 8 4 Screw Mach 28480 0515 1119 6 87512 87113 5 1 Label REFLECTED INCIDENT 28480 87512 87113 7 87512 87121 3 1 Label Top 28480 87512 87121 8 87512 04001 6 1 Housing Cover 28480 87512 04001 0515 1873 0 4 Screw Metric 28480 0515 1873 9 87512 66501 1 1 PC Board Assy 28480 87512 66501 0515 0976 2
4. 2 1 ENVIRONMENTAL CONSIDERATIONS Operating and Storage The 87512A B should be operated in a temperature range between 0 C and 55 C with relative humidity between 5 and 95 at 40 C non condensing It may be operated at altitudes up to 4 500 meters 15 000 feet The 87512A B may be stored in temperatures from 40 C to 70 C with relative humidity up to 90 at 65 C non condensing and at altitudes up to 15 240 meters 50 000 feet PREPARATION FOR USE Connecting the Test Kit The 87512A B is designed to mount directly to the network analyzer as shown in Figure 2 1 The analyzer s R and A ports should be connected to the 87512A B s R or INCIDENT and A or REFLECTED ports respectively The analyzer s RF OUT port should be connected to the test kit RF IN port using semi rigid cable The device under test should be connected to the test set s TEST PORT The flexible coaxial cable connects the test device output to the analyzer port B to allow transmission measurements A 750 to 500 minimum loss pad included in the 87512B matches the flexible cable and the analyzer s 500 port B to 759 test devices NETWORK ANALYZER A8102001 Figure 2 1 Test Kit Connections 2 2 Installation Note Ensure that the test kit is firmly connected to the
5. or error free Limitation Of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance No other warranty is expressed or implied Agilent Technologies specifically disclaims the implied warranties of merchantability and fitness for a particular purpose Exclusive Remedies The remedies provided herein are buyer s sole and exclusive remedies Agilent Technologies shall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any other legal theory Assistance Product maintenance agreements and other customer assistance agreements are available for Agilent Technologies products For any assistance contact your nearest Agilent Technologies Sales and Service Office Address are provided at the back of this manual Safety Symbols General definitions of safety symbols used on equipment or in manuals Warning Y Caution Y Note vi Instruction manual symbol the product will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect against damage to the instrument Indicates dangerous voltage terminals fed from the interior by voltage exce
6. shows a typical test kit measurement setup 1 INCIDE 87512 DC 26 Hz TRANSMISSION REFLECTION TEST SET INS LOSS 10dB NOM AVOID STATIC Ay DISCHARGE U ASA TO EACH CONNECTOR T 7 AB103001 Figure 3 1 Test Kit Features 1 INCIDENT This connector routes a portion of the incident signal from the analyzer source to input R of the network analyzer This signal is used as the reference signal in ratio measurements 2 REFLECTED This connector returns the reflected signal from the device under test to input A of the analyzer 3 TEST PORT The device under test is connected here This connector provides the output signal to the DUT and receives the reflected signal from the DUT The 87512A TEST PORT connector is a 500 type N connector The 87512B TEST PORT connector is 750 type N connector Operation 3 1 Caution Do not apply a signal higher than 23 dBm to the TEST PORT 4 RF IN This connector receives the RF signal from the analyzer RF OUT and splits it between the TEST and INCIDENT ports TYPICAL MEASUREMENT SETUP Figure 3 2 shows the typical measurement setup using the 87512A B NETWORK ANALYZER OPTIONAL CONNECTIONS FOR TRANSMISSION MEASUREMENTS
7. 12B the 750 test kit the name 87512A B will be used To use the 87512A B to perform a specific function without reading the entire manual follow the directions in USING THE 87512A B This chapter 1 outlines how to begin using the 87512A B as quickly as possible 2 describes what instrument are covered by this manual 3 describes the test kit itself 4 mentions operating precautions safety considerations and warranty restrictions 5 lists the additional equipment required and 6 defines and lists the required instrument specifications USING THE 87512A B The 87512A B has been designed to operate specifically with the Agilent Technologies network analyzer m To install the instrument turn to Chapter 2 m To operate the instrument turn to Chapter 3 m To check the proper operation of the 87512A B see the Chapter 4 m To troubleshoot the 87512A B turn to Chapter 5 General Information 1 1 INSTRUMENTS COVERED BY MANUAL You will find a two part serial number inside the cover of the test kit carrying case The first four digits and the letter are the serial number prefix The last five digits are the sequential suffix which is unique to each test kit The contents of this manual apply directly to test kits with the same serial number prefix as the one s on the title page under the heading SERIAL NUMBERS If the serial prefix of your test kit is not listed on the title page your instrument differs
8. 7 Screw Mach M2x0 4 28480 0515 0976 2190 0654 5 7 Washer LK HLCL 2 28480 2190 0654 10 87512 20001 0 1 Housing Driver 28480 87512 20001 11 41952 60012 3 1 Inner Conductor Assy 50 Q 28480 41952 60012 12 87512 87115 3 1 Label TEST PORT 28480 87512 87115 Table 5 2 87512B Signal Divider Replaceable Parts Lists Reference Part No C Qty Description Mfr Mfr Part No Designator D 1 87512 87114 6 1 Label RF IN 28480 87512 87114 2 1250 0549 4 2 Body RF Connector Type N Female 28480 1250 0549 0515 0999 9 A Screw Mach 28480 0515 0999 3 08742 0006 5 2 Spacer Outer Cond 28480 08742 0006 4 41952 60012 3 1 Inner Conductor Assy 50 Q 28480 41952 60012 5 1250 2229 1 2 Body RF Connector Type N Male 28480 1250 2229 0515 0914 8 4 Screw Mach 28480 0515 1119 6 87512 87113 5 1 Label REFLECTED INCIDENT 28480 87512 87113 7 87512 87122 4 1 Label Top 28480 87512 87122 8 87512 04001 6 1 Housing Cover 28480 87512 04001 0515 1873 0 4 Screw Metric 28480 0515 1873 9 87512 66502 2 1 PC Board Assy 28480 87512 66502 0515 0976 2 7 Screw Mach M2x0 4 28480 0515 0976 2190 0654 5 7 Washer LK HLCL 2 28480 2190 0654 10 87512 20001 0 1 Housing Driver 28480 87512 20001 11 41952 60013 4 1 Inner Conductor Assy 75 Q 28480 41952 60013 12 87512 87116 8 1 Label TEST PORT 28480 87512 87116 Service 5 3
9. Advanced Test Equipment Rentals established 1981 www atecorp com 800 404 ATEC 2832 Agilent 87512A B TRANSMISSION REFLECTION TEST KIT OPERATION AND SERVICE MANUAL SERIAL NUMBERS This manual applies directly to instruments with serial number prefix 3244J For additional important information about serial numbers read INSTRUMENT COVERED BY MANUAL in Chapter 1 BE Agilent Technologies Agilent Part No 87512 90020 Printed in JAPAN February 2001 Notice The information contained in this document is subject to change without notice This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of the Agilent Technologies Agilent Technologies Japan Ltd Component Test PGU Kobe 1 3 2 Murotani Nishi ku Kobe shi Hyogo 651 2241 Japan Copyright 1990 1992 2000 2001 Agilent Technologies Japan Ltd Manual Printing History The manual printing date and part number indicate its current edition The printing date changes when a new edition is printed Minor corrections and updates which are incorporated at reprint do not cause the date to change The manual part number changes when extensive technical changes are incorporated October 1990 cocococcccccccccncncncnr cnc rr rr rre re First Edition October 1992 0 eee eee ee Second Edi
10. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institution s calibration facility or to the calibration facilities of other International Standards Organization members Warranty Agilent Technologies instrument product is warranted against defects in material and workmanship for a period of one year from the date of shipment except that in the case of certain components listed in Chapter 1 of this manual the warranty shall be for the specified period During the warranty period Agilent Technologies will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Agilent Technologies The Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges to return the product to the Buyer However The Buyer shall pay all shipping charges duties and taxes for products returned to Agilent Technologies from another country Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instruction when property installed on that instrument Agilent Technologies does not warrant that the operation of the instrument or software or firmware will be uninterrupted
11. INPUT and the TEST PORT using Signal Generator and Power Meter Test Equipment Signal Generator 8663A Power Meter 436A Power Sensor 8482A 50 Q Termination 909C Opt 013 2 ea N m N m Cable PN 8120 4666 Furnished with the 87512A B Minimum Loss Pad 500 750 11852B Furnished with the 87512B 87512B only Procedure 1 Set the signal generator output for a frequency of 500 MHz and an output level of 0 dBm 2 Calibrate the power meter and sensor with the power reference on the power sensor 3 Connect the power sensor to the signal generator output 4 Record the power meter reading as A 5 Connect the test equipment as shown in Figure 4 2 SIGNAL GENERATOR POWER METER Nim Nim Cable Test 50 ohm Termination TEST se 502 75 Minimum Loss Pad 8 512B on REFL Direct Connection No Cable Power Sensor Figure 4 2 Insertion Loss Test Without an 8751A Setup 6 Record the power meter reading as B 7 Subtract A from B Operational Verification 4 5 8 Confirm that the calculated result is within the following limits 87512A 10dB 1 dB 87512B 15 7 dB 1 dB Note The 50 Q 75 Q minimum loss pad increases the 87512B test set insertion loss i from
12. OVERED BY MANUAL Lo en 1 2 DESCRIPTION AND OPERATING CHARACTERISTICS or THE INSTRUMENT 2 A 1 2 ACCESSORIES 2 2 non non 1 4 Accessories Supplied 2 2 2 2 non on non 1 4 Accessories Available 1 4 Calibration and Accessory Kits en 1 4 Cable Sets en 1 4 OPERATING AND SAFETY PRECAUTIONS En 1 5 Operating 2 a 1 5 Service Ce 1 5 RECOMMENDED TEST EQUIPMENT a 1 5 SPECIFICATIONS Co 1 6 OPERATING CHARACTERISTICS ON 1 6 Definitions 2 2 2 A 1 6 2 Installation INTRODUCTION 2 aa a 2 1 INITIAL INSPECTION rn 2 1 ENVIRONMENTAL CONSIDERATIONS rn 2 2 Operating and Storage 2 2 PREPARATION FOR USE e o 2 2 Connecting the Test Kit 2 2 2 m nommen 2 2 Mating Connectors Co e 2 3 Power and Control Connections Ve 2 3 PACKAGING 2 3 3 Operation INTRODUCTION Ve 3 1 TYPICAL MEASUREMENT SETUP Cl 3 2 One Port Measurements 3 2 One Port Calibration en 3 2 Reflection Coefficient Return Loss en 3 3 Complex Impedance ll 3 3 Two Port Measurements 2 2 2 a a a a 3 3 Two Port Calibration 3 3 Transmission Measurements 2 nn 1 on nn 3 3 Contents 1 4 Operational Verification INTRODUCTION o VERIFICATION CYCLE EQUIPMENT REQUIRED INSERTION LOSS TEST WITH AN 8751A Test Equipment Procedure INSERTION LOSS TEST WITHOUT AN 8751A Test Equipment Procedure Service Manual Changes Introduction MANUAL CHANGES C
13. al Information 1 5 SPECIFICATIONS Table 1 2 Specifications Parameter 87512A 87512B Nominal Impedance Frequency Range Operating Conditions Temperature Relative Humidity Dimensions Weight 509 dc to 2 GHz 0 C to 55 C lt 95 at 40 C 83 mm X 91 mm x 43 mm 3 3 x 3 6 x 1 7 inches 410 g 750 de to 2 GHz 0 C to 55 C lt 95 at 40 C 83 mm x 91 mm x 43 mm 3 3 x 3 6 x 1 7 inches 410 g OPERATING CHARACTERISTICS Definitions The operating characteristics listed in Table 1 3 are those typical of most 87512A B instruments but are not guaranteed Typical but non warranted performance characteristics intended to provide information useful in applying the instrument Operating characteristics are representative of most instruments though not necessarily tested in each unit and not field tested Table 1 3 Operating Characteristics Parameter 87512A 87512B Insertion Loss 10 1 dB 10 1 dB Equivalent Directivity 2 40 dB 40 dB Equivalent Source Match 2 30 dB Qdc lt frequency lt 1 GHz 25 dB 25 dB 1 GHz lt frequency lt 2 GHz Damage Level 23 dBm 23 dBm 1 2345 C 2 after calibration with the furnished terminations 1 6 General Information Installation INTRODUCTION This chapter explains how to install the 87512A B test kit for use with the network analyzer The topics covered include initial inspection environme
14. analyzer R and A port i connectors If any of the connections are loose the analyzer may display Y erratic measurements Mating Connectors The TEST PORT of the 87512A is a precision 500 type N female connector and mates with precision 500 type N male connectors The TEST PORT of the 87512B is a precision 750 type N female connector and mates with precision 750 type N male connectors Caution Do not mate type N 500 connectors to type N 750 connectors or damage may Y result The RF IN R and A ports of the 87512A B are precision 500 type N connectors which mate with the corresponding precision type N connectors whose dimensions conform to US specification MIL C 39012 Power and Control Connections Power is not required for the 87512A B PACKAGING If shipping to a Agilent Technologies service center is required each test kit should be repackaged using the original factory packaging materials Alteratively comparable packaging materials may be used Wrap the test kit in heavy paper or anti static plastic Use sufficient shock absorbing material on all sides of the 87512A B to provide a thick firm cushion and prevent movement Seal the shipping container securely and mark it FRAGILE In any correspondence with Agilent Technologies refer to the 87512A B by its full model and serial number Installation 2 3 Operation INTRODUCTION This chapter illustrates the features of the 87512A B Figure 3 1 Figure 3 2
15. e Parts Or Modify Instrument Because of the danger of introducing additional hazards do not substitute parts or perform unauthorized modifications to the instrument Return the instrument to a Agilent Technologies Sales and Service Office for service and repair to ensure the safety features are maintained Dangerous Procedure Warnings Warnings such as the example below precede potentially dangerous procedures throughout this manual Instructions contained in the warnings must be followed Warning Dangerous voltages capable of causing death are present in this instrument Use extreme caution when handling testing and adjusting this instrument Typeface Conventions Bold Boldface type is used when a term is defined For example icons are symbols Italics Italic type is used for emphasis and for titles of manuals and other publications Italic type is also used for keyboard entries when a name or a variable must be typed in place of the words in italics For example copy filename means to type the word copy to type a space and then to type the name of a file such as file1 Computer Computer font is used for on screen prompts and messages HARDKEYS Labeled keys on the instrument front panel are enclosed in SOFTKEYS Softkeys located to the right of the CRT are enclosed in Certification Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory
16. eding 1000 volts must be so marked Protective conductor terminal For protection against electrical shock in case of a fault Used with wiring terminals to indicate the terminal which must be connected to ground before operating equipment Low noise or noiseless clean ground earth terminal Used for a signal common as well as providing protection against electrical shock in case of fault A terminal marked with this symbol must be connected to ground in the manner described in the installation Operation manual and before operating the equipment Frame or chassis terminal A connection to the frame chassis of the equipment which normally includes all exposed metal structures Alternating current power line Direct current power line Alternating or direct current power line Warning denotes a hazard It calls attention to a procedure practice condition or the like which if not correctly performed or adhered to could result in injury or death to personnel Caution sign denotes a hazard It calls attention to a procedure practice condition or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Note denotes important information It calls attention to a procedure practice condition or the like which is essential to highlight Contents 1 General Information INTRODUCTION 1 a 1 1 USING THE 87512A B Co 1 1 INSTRUMENTS C
17. from those documented in this manual The differences are documented in the yellow manual changes supplement supplied with the manual To keep this manual as current and accurate as possible Agilent Technologies recommends that you periodically request the latest manual changes supplement as it may contain replacement information as well as change information The supplement for this manual is keyed to the manual s print date and part number on the title page and is available on request from Agilent Technologies This manual is also available on microfiche form the part number appears on the title page With the manual in 4 x 6 inch microfilm transparency format you will also receive the latest manual changes supplement DESCRIPTION AND OPERATING CHARACTERISTICS OF THE INSTRUMENT The 87512A B transmission reflection test kit has been designed to operate with the Agilent Technologies network analyzer The test kit provides a convenient means of measuring the reflection and transmission characteristics of a 500 or 750 device in one direction The frequency range of the 87512A B is de to 2 GHz SPECIFICATIONS lists the operating specifications and characteristics of the 87512A B The test kit is shown on the cover of this manual and is shown in Figure 3 1 1 2 General Information Figure 1 1 87512A B Transmission reflection Test Kit with Accessories Supplied No Description Agilent Part Numbe
18. hange 1 Page 1 3 Table o Page 1 6 Tabel 1 2 Specifications Page 1 6 Tabel 1 3 Operating Characteristics Page 2 1 Tabel 2 1 Contents of the 87512A B Page 5 3 Tabel 5 1 87512A Signal Divider Replaceable Parts Lists Page 5 3 Tabel 5 2 87512B Signal Divider Replaceable Parts Lists Contents 2 4 1 4 1 4 1 4 3 4 3 4 3 4 5 4 5 4 5 A 1 A 1 A 1 A 1 A 2 A 2 A 2 A 2 A 2 Figures 1 1 87512A B Transmission reflection Test Kit with Accessories Supplied 1 3 2 1 Test Kit Connections 2 2 3 1 Test Kit Features 3 1 3 2 Typical Measurement Setup Loe Co 3 2 4 1 Insertion Loss Test Setup With an 8751A e 4 4 4 2 Insertion Loss Test Without an 8751A Setup 2 nn nen 4 5 5 1 87512A B Signal Divider Exploded View 2 2 no nn nn nen 5 2 Tables 1 1 Accessories Available 2 2 CL 2 on ee A 1 4 2 1 Contents of the S7512A B cc a 2 1 4 1 Recommended Test Equipment a 4 2 5 1 87512A Signal Divider Replaceable Parts Lists e 5 3 5 2 87512B Signal Divider Replaceable Parts Lists 2 2 2 2 nme 5 3 A 1 Manual Changes by Serial Number 2 Co nn nn A 1 Contents 3 General Information INTRODUCTION The purpose of this manual is to enable you to use your 87512A or 87512B transmission reflection test kit efficiently and confidently This manual contains both general and specific information When information applies to both the 87512A the 500 test kit and the 875
19. ion Refer to the analyzer s manual for a complete description of the calibration procedure Transmission Measurements By using the 87512A B transmission calibration and the ratio measurement functions the gain or loss of the device under test can be displayed directly in decibels or linear ratio units The calibration function removes the effects of the 87512A B and the connecting cables The analyzer measurement functions B R or Sy calculates the gain or loss of the test device The test device is connected between the TEST PORT and the analyzer B port using the flexible cable included in the test set Operation 3 3 Operational Verification INTRODUCTION This chapter provides the 87512A B test procedure to measure the insertion loss test between the RF INPUT and test port of the test set Two test procedures are provided for testing the test set s insertion loss One is used when the 8751A is available as test equipment and the other is used when the 8751A is NOT available as test equipment This verification procedure is typically used for incoming inspection of the 87512A B and to verify that the test set is in good order after it has been repaired VERIFICATION CYCLE The 87512A B requires periodic performance verification The frequency of performance verification depends on the operating and environmental conditions under which the 87512A B is used Verify the 87512A B s performance at least once a year using the o
20. ntal considerations positioning and connecting the test kit for use and packaging the instrument INITIAL INSPECTION Inspect the shipping container including cushioning material for damage If it is damaged keep it until you have checked the contents for completeness The contents are listed in Table 2 1 In addition check the test kit mechanically and electrically If the test kit and shipping container are undamaged performing the operation verification in Chapter 4 should suffice for incoming inspection If the test kit does not pass the verification refer to the troubleshooting procedures in Chapter 5 If the shipping container is damaged and the test kit fails the verification procedure or is damaged defective or incomplete keep the shipping materials and notify both the carrier and the nearest Agilent Technologies office The Agilent Technologies office will arrange for repair or replacement of the test kit without waiting for settlement of the claim Table 2 1 Contents of the 87512A B Agilent Model Part Number Component 87512A 87512B Resistive Signal Divider Carrying case Semi rigid cable Precision SHORT termination Precision LOAD termination Minimum loss pad DUT return cable 87512 61001 87512 60011 41952 61601 11512A 909C Opt 012 Not included 8120 4666 87512 61002 87512 60012 41952 61601 85036 60012 909E 11852B 8120 4666 1 only for the 87512B Installation
21. of the 87512A Use the 11857B 750 type N test port return cable set to extend the test port of the 87512B 1 4 General Information OPERATING AND SAFETY PRECAUTIONS Operating You need to observe only normal precautions in handling and operating the 87512A B Do not exceed its operating input level of 23 dBm Caution Electrostatic discharge ESD can damage the highly sensitive microcircuits in the 87512A B test kits ESD damage is most likely to occur when the test Y kits are connected or disconnected Protect them by wearing a grounding strap that provides a path to ground of no less than 1 MQ and no more than 2 5 MQ Alternatively ground yourself by touching the outer shell of any grounded instrument chassis before touching the test port connectors Never touch the center contacts of the connectors Use a work station equipped with an anti static surface Service The voltages in this test kit do not warrant more than normal caution for operator safety Nevertheless service should be performed by qualified personnel RECOMMENDED TEST EQUIPMENT Table 4 1 lists equipment and accessories required for operational verification and repairing the 87512A B The table notes which items are required to verify the performance of the test kit and which are required to troubleshoot it Other equipment may be substituted if its specifications meet or exceed the specifications listed in the critical specifications column Gener
22. of the 87512A B Change as follows Carrying case 87512 60001 87512 60002 Page 5 3 Tabel 5 1 87512A Signal Divider Replaceable Parts Lists Change as follows 7 87512 87111 3 1 Label Top 28480 87512 87111 Page 5 3 Tabel 5 2 87512B Signal Divider Replaceable Parts Lists Change as follows 7 87512 87112 4 1 Label Top 28480 87512 87112 A 2 Manual Changes
23. perational verification described in this chapter EQUIPMENT REQUIRED Table 4 1 lists the equipment required to perform the operational verification check Equipment that meets or exceeds the critical specifications listed in the table may be used as a substitute for the recommended models Operational Verification 4 1 Table 4 1 Recommended Test Equipment Equipment Critical Specifications Recommended Model Network Analyzer No substitute 8751A Cable N m N m Cable PN 8120 4666 Semi rigid PN 41952 61601 Pad Minimum Loss Pad 50 Q 75 Q 11852B Signal Generator Frequency 500 MHz 8663A Output Level 0 dBm Power Meter Frequency 500 MHz 436A Amplitude 15 7 to 0 dBm Power Sensor Frequency 500 MHz 8482A Amplitude 15 7 to 0 dBm 50 Q Termination Type N female 909C Opt 013 2 ea 1 This equipment is used for the insertion loss test with an 8751A 2 This equipment is furnished with the 87512A B 3 11852B is furnished with 87512B 4 This equipment is used for the insertion loss test without an 8751A 4 2 Operational Verification INSERTION LOSS TEST WITH AN 8751A This test checks the 87512A B insertion loss between the RF INPUT and the TEST PORT using an 87514 Test Equipment Network Analyzer 87514 N m N m Cable 50 Q PN 8120 4666 Furnished with the 87512A B Semi rigid Cable PN 41952 61601 Furnished with the 87512A B Minimum Loss Pad 50 Q 75 Q 11852B Furnished
24. r QTY 87512A 87512B 1 Carrying Case 87512 60011 87512 60012 1 2 Resistive Signal Divider 87512 61001 87512 61002 1 3 Semi rigid cable 41952 61601 41952 61601 1 4 Precision SHORT Termination 115124 85036 60012 1 5 Precision LOAD Termination 909C Opt 012 909E 1 6 DUT Return Cable 8120 4666 8120 4666 1 7 Minimum Loss Pad 50 2 75 Q Not furnished 11852B 1 General Information 1 3 ACCESSORIES Accessories Supplied Figure 1 1 shows the 87512A B with the accessories supplied m Carrying case m Semi rigid cable m Precision SHORT termination m Precision LOAD termination a Minimum loss pad only for the 87512B a DUT return cable Accessories Available Calibration and Accessory Kits The calibration kits listed in Table 1 1 contain the components required to characterize the systematic errors of various measurement systems The calibration kits also contain precision adapters The accessory kits listed contain the components generally required to measure devices with the types of connectors indicated Additional information is included in the analyzer s manual Table 1 1 Accessories Available Cable Sets Connector Type Calibration Kit Accessory Kit 7mm Type N 500 Type N 750 BNC 500 85031B 85032B 85036B N A N A 118534 N A 11854A 1 not available 2 use with 85032B type N 5082 calibration kit Use the 11851B 500 type N cable set to extend the test port
25. tion part number 87512 90010 March 2000 cece eee eee eee eee eee Third Edition part number 87512 90010 February 2001 2 0 0 20 e eee eee eee eee ees Fourth Edition part number 87512 90020 Safety Summary The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific WARNINGS given elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument The Agilent Technologies assumes no liability for the customer s failure to comply with these requirements DO NOT Operate In An Explosive Atmosphere Do not operate the instrument in the presence of flammable gasses or fumes Operation of any electrical instrument in such an environment constitutes a safety hazard Keep Away From Live Circuits Operating personnel must not remove the instrument covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with the power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always disconnect power and discharge circuits before touching them DO NOT Service Or Adjust Alone Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present DO NOT Substitut
26. with the 87512B 87512B only Procedure 1 Connect an N m N m Cable between the 8751A RF OUT connector and the 8751A input B connector 2 Setup the 8751A as follows Control Settings Key Strokes PRESET PRESET Meas Config B MEAS B Sweep Type LOG FREQ MENU SWEEP TYPE MENU LOG FREQ IF BW 2 Hz AVG IF BW 2 Ga 3 Perform the following key strokes to perform the THRU calibration CAL CALIBRATE MENU RESPONSE THRU DONE RESPONSE 4 Connect the 87512A B as shown in Figure 4 1 Operational Verification 4 3 8751A ODODODOO Semi rigid Cable Jr Direct Connection No Cable 50N 76Q Lr Minimum Loss Pad 87512B only N m N m Cable Figure 4 1 Insertion Loss Test Setup With an 8751A 5 Press MKR ECTN MKR SEARCH MAX to move the marker to MAX Confirm that the reading value is within the following limits 87512A 10dB 1 dB 87512B 15 7 dB 1 dB Note The 50 Q 75 Q minimum loss pad increases the 87512B test set insertion loss i from 10 dB to 15 7 dB Y 6 Press MIN to move the marker to MIN Confirm that the measurement value is within the following limits 87512A 10dB 1 dB 87512B 15 7 dB 1 dB 4 4 Operational Verification INSERTION LOSS TEST WITHOUT AN 8751A This test checks the 87512A B insertion loss between the RF
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