Anritsu VectorStar ME7838 Series Maintenance Manual Download Page 19

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General Information

1-6 ME7838 Series VNA System Overview

VectorStar ME7838 Series MM

PN: 10410-00306 Rev. F

1-11

ME7838E Waveguide Band Configuration System Components

Table 1-6.

ME7838E Waveguide Band Configuration System Components

Part Number

Name

Specifications

Waveguide Band ME7838E Configuration

MS4644B,
MS4645B or
MS4647B

VectorStar MS4640B Vector Network Analyzer
(VNA) with at least 40 GHz Frequency coverage

10 MHz to 40 GHz,
10 MHz to 50 GHz or
10 MHz to 70 GHz

MS4640B-002

Time Domain Option

MS4640B-007

Receiver Offset Option

MS464xB-08X

Millimeter-Wave Interface Option

Select one:
• Use Option MS4647B-086 if VNA Option

051, 061, or 062 is

not

selected below.

• Use Option MS4645B-086 if VNA Option

051, 061, or 062 is

not

selected below.

• Use Option MS4644B-086 if VNA Option

051, 061, or 062 is

not

selected below.

• Use Option MS4647B-087 if VNA Option

051, 061, or 062

selected below.

• Use Option MS4645B-087 if VNA Option

051, 061, or 062

selected below.

• Use Option MS4644B-087 if VNA Option

051, 061, or 062

selected below.

3739B or 3739C

Broadband Test Set

With front and rear panel interface cables

3744E-EE

Millimeter-Wave Modules

56 GHz to 95 GHz, WR-12

2 each

3744E-EW

Millimeter-Wave Modules

65 GHz to 110 GHz, WR-10

2 each

MS4640B VNA Front Panel Options – Select None or One (1)

MS464xB-051

Front Panel Loops

6 Front Panel Loops
• Provides front panel loops for b1, a1,

Port 1 Source, Port 2 Source, a2, and b2

• If Option 051

selected, use Option

MS464xB-087.

MS464xB-061

Active Measurement Suite

2 Attenuators
• Includes front panel loops above with

two (2) attenuators, bias tees in test set,
gain compression, and efficiency
measurement software.

• If Option 061

selected, use Option

MS464xB-087.

MS464xB-062

Active Measurement Suite

4 Attenuators
• Includes front panel loops above with

four (4) attenuators, bias tees in test set,
gain compression, and efficiency
measurement software.

• If Option 062

selected, use Option

MS464xB-087.

Summary of Contents for VectorStar ME7838 Series

Page 1: ...ement System ME7838A Millimeter Wave VNA System 70 kHz to 125 GHz ME7838D Millimeter Wave VNA System 70 kHz to 145 GHz ME7838E Millimeter Wave VNA System 70 kHz to 110 GHz ME7838G Millimeter Wave VNA System 70 kHz to 220 GHz B P N 10410 00306 Revision F Published January 2020 Copyright 2020 Anritsu Company Anritsu Company 490 Jarvis Drive Morgan Hill CA 95037 2809 USA http www anritsu com ...

Page 2: ......

Page 3: ...s MS4647B Based 1 8 ME7838A Waveguide Band Configuration System Components MS4640B Based 1 9 ME7838E Standard Broadband VNA System Components 1 10 ME7838E Waveguide Band Configuration System Components 1 11 ME7838D Standard Broadband VNA System Components 1 12 ME7838G Standard Broadband VNA System Components 1 13 1 7 Recommended Test Equipment 1 14 Test Equipment ME7838A E Broadband Configuration ...

Page 4: ...8D System Verification 3 15 Performance Verification Software Overview 3 15 Verification Result Determination 3 15 3 8 ME7838D System Verification Procedure 3 16 Equipment Required 3 16 Special Precautions 3 16 Procedure 3 16 3 9 ME7838G System Verification 3 18 ME7838G 0 8 mm Coaxial System Verification 3 18 Performance Verification Software Overview 3 18 Verification Result Determination 3 18 ME...

Page 5: ...nfiguration 4 11 Stimulus Signal Generation 4 11 Test Signal Processing 4 11 4 7 ME7838E System Operation Broadband Configuration 4 12 Stimulus Signal Generation 4 12 Test Signal Processing 4 12 4 8 ME7838E System Operation Waveguide Band Configuration 4 13 Stimulus Signal Generation 4 13 Test Signal Processing 4 13 4 9 ME7838D System Operation 4 14 Stimulus Signal Generation 4 14 Test Signal Proc...

Page 6: ... Required 6 10 Procedure 6 10 6 10 Troubleshooting 3739A Test Set Port Power Level Check 6 11 Equipment Required 6 11 Procedure 6 11 6 11 General Troubleshooting of the 3739B C Test Set 6 13 Suggested Troubleshooting Steps 6 13 6 12 Troubleshooting Test 3739B C Power Supply DC Check 6 14 Equipment Required 6 14 Procedure 6 14 6 13 Troubleshooting Test 3739B C A1 Bias Control PCB DC Bias Check 6 17...

Page 7: ...ols 7 24 Reference Figures 7 24 Replacement Procedure 7 25 7 10 Front Panel Assembly ND73169 71894 7 26 Replacement Part 7 27 Replacement Procedure 7 27 Chapter 8 Removal and Replacement Procedures For 3739B and 3739C 8 1 Introduction 8 1 8 2 Disassembly Procedure Power Disconnect and Covers 8 1 8 3 Reassembly Procedure Power Disconnect and Covers 8 4 8 4 Replaceable Part Chassis Locations 8 7 8 5...

Page 8: ...22 8 9 Front Panel Assembly 8 23 Replacement Parts 8 23 Procedure 8 23 Replacement Procedure 8 24 Appendix A Test Records A 1 Introduction A 1 A 2 ME7838A Millimeter Wave Configuration VNA System Test Record A 2 Instrument Information A 2 Directivity Verification A 2 Source Match Verification A 2 A 3 ME7838G WR05 S Parameter Measurements Test Record A 3 Instrument Information A 3 S Parameter Measu...

Page 9: ...oubleshooting the failed system to the failed instrument module level Locating and replacing failed parts in the system test set Throughout this manual the term VNA System will be used interchangeably to refer to ME7838 Series BB mm Wave Vector Network Analyzer System 1 2 Identification Number All Anritsu instruments are assigned an unique identification number up to seven digit such as 090201 or ...

Page 10: ...Sheet TDS 11410 00778 ME7838E Modular BB mm Wave Technical Data Sheet TDS 11410 00767 ME7838G Modular BB mm Wave Technical Data Sheet TDS 11410 01060 ME7838A Modular BB mm Wave Quick Start Guide QSG 10410 00292 ME7838D G Modular BB mm Wave Quick Start Guide QSG 10410 00732 ME7838E Modular BB mm Wave Quick Start Guide QSG 10410 00729 ME7838 Series Modular BB mm Wave Installation Guide IG 10410 0029...

Page 11: ...em Performance Verification Software User Guide for the VectorStar ME7838A ME7828A and Lightning ME7808A B C BB mm Wave VNA Systems 10410 00286 3659 Cal Verif Kit UG and System Performance Verification Software for BB mmW ME7838D with 0 8 mm Connectors 10410 00327 Updates to Manuals For updates to any of the VectorStar Series VNA documentation visit Anritsu s Web site at http www anritsu com en us...

Page 12: ...ons Table 1 1 ME7838A Standard Broadband VNA System Components MS4647A Based Table 1 2 ME7838A Waveguide Band Configuration System Components MS4640A Based Table 1 3 ME7838A Standard Broadband VNA System Components MS4647B Based Table 1 4 ME7838A Waveguide Band Configuration System Components MS4640B Based Table 1 5 ME7838E Standard Broadband VNA System Components Table 1 6 ME7838E Waveguide Band ...

Page 13: ...ce cables 3743A Millimeter Wave Modules 70 GHz to 110 GHz 2 each Coaxial Cable Option Select One 1 806 206 R 1 85 mm Interconnect Cable 70 cm 24 inches V m to V f 2 cables 806 209 R 1 85 mm Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables 806 396 R 1 85 mm Phase Stable Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables MS4647A VNA Front Panel Options Select None or One 1 MS4647A 051 ...

Page 14: ...1 6 ME7838 Series VNA System Overview General Information 1 6 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 15: ...e Option MS4645A 083 if VNA Option 051 061 or 062 is selected below Use Option MS4644A 083 if VNA Option 051 061 or 062 is selected below 3739A or 3739B Broadband Test Set With front and rear panel interface cables 3744A EE or SM6499 Millimeter Wave Modules 56 GHz to 95 GHz WR 12 2 each 3744A EW or SM6527 Millimeter Wave Modules 65 GHz to 110 GHz WR 10 2 each MS4640A VNA Front Panel Options Select...

Page 16: ...ce cables 3743A Millimeter Wave Modules 70 GHz to 110 GHz 2 each Coaxial Cable Option Select One 1 806 206 R 1 85 mm Interconnect Cable 70 cm 24 inches V m to V f 2 cables 806 209 R 1 85 mm Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables 806 396 R 1 85 mm Phase Stable Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables MS4647B VNA Front Panel Options Select None or One 1 MS4647B 051 ...

Page 17: ...d below Use Option MS4645B 083 if VNA Option 051 061 or 062 is selected below Use Option MS4644B 083 if VNA Option 051 061 or 062 is selected below 3739B or 3739C Broadband Test Set With front and rear panel interface cables 3744A EE Millimeter Wave Modules 56 GHz to 95 GHz WR 12 2 each 3744A EW Millimeter Wave Modules 65 GHz to 110 GHz WR 10 2 each MS4640B VNA Front Panel Options Select None or O...

Page 18: ...E Millimeter Wave Modules 70 GHz to 110 GHz 2 each Coaxial Cable Option Select One 1 806 206 R 1 85 mm Interconnect Cable 70 cm 24 inches V m to V f 2 cables 806 209 R 1 85 mm Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables 806 396 R 1 85 mm Phase Stable Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables MS4647B VNA Front Panel Options Select None or One 1 MS4647B 051 Front Panel Lo...

Page 19: ... or 062 is selected below Use Option MS4645B 087 if VNA Option 051 061 or 062 is selected below Use Option MS4644B 087 if VNA Option 051 061 or 062 is selected below 3739B or 3739C Broadband Test Set With front and rear panel interface cables 3744E EE Millimeter Wave Modules 56 GHz to 95 GHz WR 12 2 each 3744E EW Millimeter Wave Modules 65 GHz to 110 GHz WR 10 2 each MS4640B VNA Front Panel Option...

Page 20: ...illimeter Wave Modules 70 GHz to 145 GHz 2 each Coaxial Cable Option Select One 1 806 206 R 1 85 mm Interconnect Cable 70 cm 24 inches V m to V f 2 cables 806 209 R 1 85 mm Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables 806 396 R 1 85 mm Phase Stable Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables MS4647B VNA Front Panel Options Select None or One 1 MS4647B 051 Front Panel Loops...

Page 21: ...illimeter Wave Modules 70 GHz to 220 GHz 2 each Coaxial Cable Option Select One 1 806 206 R 1 85 mm Interconnect Cable 70 cm 24 inches V m to V f 2 cables 806 209 R 1 85 mm Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables 806 396 R 1 85 mm Phase Stable Interconnect Cable 91 5 cm 36 inches V m to V f 2 cables MS4647B VNA Front Panel Options Select None or One 1 MS4647B 051 Front Panel Loops...

Page 22: ...on Kit Connector Type W1 Anritsu 3656B includes verification software P T PC Controller Configuration Intel Core i3 4 GB RAM Windows 7 SP 1 or later 20 MB Hard disk free space 1024x768 Display Resolution CD ROM Drive USB 2 0 Type A Port National Instruments GPIB Controller and Driver Any P Power Meter Power Range 30 to 20 dBm Other GPIB Controllable Anritsu ML2437A or ML2438A A T Power Meter Power...

Page 23: ... Anritsu MS2720T with Opt 732 T RF Cable Frequency Range 4 to 11 GHz Connector Type K Anritsu 15KK50 1 0A T Digital Multimeter DC Voltage 20 V Any T Attenuator Frequency Range DC to 40 GHz Attenuation 20 dB Anritsu 41KC 20 T a Use Codes P Performance Verification A Adjustment T Troubleshooting Table 1 9 Recommended Test Equipment for ME7838A E VNA System Broadband Configuration Continued Instrumen...

Page 24: ... N1913A with Option 200 A Power Sensor Frequency Range 70 kHz to 70 GHz Power Range 30 to 20 dBm Anritsu SC7770 A Power Sensor Frequency Range 5 to 10 GHz Power Range 9 dBm Anritsu MA2474D A T Waveguide Power Sensor Frequency Range 75 to 110 GHz Power Range 30 to 20 dBm Keysight W8486A A Adapter W1 female to V female Anritsu 34WFVF50 A Adapter WR 10 Waveguide to W1 female Anritsu 35WR10WF A Adapte...

Page 25: ...su 3659 A Power Sensor Frequency Range 5 to 10 GHz Power Range 9 dBm Anritsu MA2474D A T Power Meter Power Range 30 to 20 dBm Other GPIB Controllable Keysight 437 E4418B or N1913A with Option 200 A Waveguide Power Sensor Frequency Range 75 to 110 GHz Power Range 30 to 20 dBm Keysight W8486A A Adapter WR 10 Waveguide to W1 female Anritsu 35WR10WF A Power Meter Power Sensor Frequency Range 110 to 17...

Page 26: ...ion Intel Core i3 Processor 4 GB RAM Windows 7 SP 1 or later 20 MB Hard disk free space 1024x768 Display Resolution USB 2 0 Type A Port National Instruments GPIB Controller and Driver Any P Power Meter Power Range 30 to 20 dBm Other GPIB Controllable Anritsu ML2437A or ML2438A A T Power Sensor Freq Range 70 kHz to 70 GHz Power Range 30 to 20 dBm Anritsu SC7770 A Adapter W1 female to V female Anrit...

Page 27: ...ernack PE9720 A Adapter N male to K female Anritsu 34NKF50 T Directional Coupler Frequency Range 5 to 10 GHz Coupling Factor 13 dB 1 dB Connector Type K female Krytar 102040013K A Spectrum Analyzer Frequency Range 4 to 21 GHz Anritsu MS2720T with Opt 732 T RF Cable Frequency Range 4 to 21 GHz Connector Type K Anritsu 15KK50 1 0A T Digital Multimeter DC Voltage 20 V Any T Attenuator Frequency Range...

Page 28: ...1 7 Recommended Test Equipment General Information 1 20 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 29: ...and Test Set Replaceable parts in Model 3739C Broadband Test Set Replaceable parts in Model 3743A E and 3744A E Millimeter Wave Modules Replaceable parts in MA25300A Millimeter Wave Module Replaceable parts in MA25400A Millimeter Wave Module Note This chapter does not include the replaceable parts information for the MS4640A and MS4640B Vector Network Analyzer For their replaceable parts informati...

Page 30: ...le RF Cable 3 ft 91 cm 2 per instrument 1 per replacement kit for 3739A 806 224 K male to K male RF Cable 3 ft 91 cm 2 per instrument 1 per replacement kit for 3739A 806 254 K male to K male RF Cable 3 ft 91 cm 2 per instrument 1 per replacement kit for 3739B and 3739C 3 806 254 K male to K male RF Cable 3 ft 91 cm 2 per instrument 1 per replacement kit for 3739C RoHS Compliant 806 256 V male to V...

Page 31: ...Compliant ND73916 Millimeter Wave Module Interface Cable Set for 3739A Includes test port test set to module cables ND75298 ND75299 3 806 226 806 223 and 806 224 described above 3 ND75338 Millimeter Wave Module Interface Cable Set for 3739B and 3739C Includes test port test set to module cables 3 ND75298 3 ND75299 3 806 226 3 806 254 and 3 806 256 described above RoHS Compliant Table 2 1 ME7838 Se...

Page 32: ...101 Modulator Module Port 1 consists of 3 73601 1 Soldered on cable harness to A1 PCB Connector P10 72231 Modulator Module ND73162 R A106 Modulator Module Port 2 consists of 3 73601 2 Soldered on cable harness to A1 PCB Connector P11 72231 Modulator Module 3 1000 58 A102 Isolator Module Port 1 5 GHz to 10 GHz No cable harness 1 per instrument 1 per replacement kit A107 Isolator Module Port 2 5 GHz...

Page 33: ...GHz Amplifier ND75885 R A105 RF Amplifier Module Port 1 consists of 3 71907 2 Soldered on cable harness to A1 PCB Connector P2 73619 8 GHz to 40 GHz Amplifier ND75886 R A106 RF Amplifier Module Port 2 consists of 3 71907 3 Soldered on cable harness to A1 PCB Connector P3 73619 8 GHz to 40 GHz Amplifier 70242 R A104 SPDT Switch 0 04 to 40 GHz Does not include SPDT Switch Control PCB Assembly ND7092...

Page 34: ...D75884 R A103 RF Amplifier Module consists of 3 71907 1 soldered on cable harness to A1 PCB Connector P1 73619 8 GHz to 40 GHz Amplifier 3 ND75884 R A103 RF Amplifier Module consists of 3 71907 1 soldered on cable harness to A1 PCB Connector P1 3 73619 8 GHz to 40 GHz Amplifier RoHS Compliant ND75885 R A105 RF Amplifier Module Port 1 consists of 3 71907 2 Soldered on cable harness to A1 PCB Connec...

Page 35: ... to A1 PCB Connector P9 3 ND80354 Front Panel Frame Assembly RoHS Compliant Including mm Wave module power and control interface connectors Power LED Port 1 LED and Port 2 LED 1010 47 6 dB Fixed Attenuator Located on the back side of the LO1 and LO2 connectors at the inside of the front panel 3 1010 47 6 dB Fixed Attenuator RoHS Compliant Located on the back side of the LO1 and LO2 connectors at t...

Page 36: ...t Part Number Description 3 73615 Knurled M2 10 mm Screw for mounting Millimeter Wave Modules in brackets RoHS Compliant 12 per system 6 per module 1 per replacement kit 3 ND75332 Heatsink RoHS Compliant Two 2 per system 1 per replacement kit Table 2 6 MA25300A Millimeter Wave Module Replaceable Parts List Replacement Part Number Description 3 76147 Knurled M3 Screw for mounting Millimeter Wave Mo...

Page 37: ...tion and stability of the calibration kit The condition and stability of the test port connectors of Millimeter Wave modules The condition and stability of the interconnect coaxial cables linking host VNA Test Set and Millimeter Wave modules These are all user controlled conditions and as such should be evaluated periodically for impact on system performance If these conditions vary significantly ...

Page 38: ...sure the S parameters of the verification standards in the 3656B Calibration Verification Kit Verify that the measured values are within the specified measurement uncertainty limits Verification Result Determination The software verification process compares the measured S parameter data of the standards against the original standard data for those devices that was obtained using the Factory Stand...

Page 39: ...per GPIB port labeled IEEE488 2 GPIB 2 Dismount both 3743A Millimeter Wave modules from the probe station if required 3 Place both modules on a leveled surface so that both test ports are facing each other 4 Install the W1 female to female adapter from the 3656B Calibration Verification Kit on the Port 1 3743A E Millimeter Wave Module This converts Port 1 from a male test port to a female test por...

Page 40: ...on components and the verification standards for damage cleanliness and proper connection and torquing Also check connections of the interconnect RF IF coaxial cables and their phase stability These are the most common causes for verification failures Note Due to different calibration methods are required to cover the 110 GHz range SOLT for low band and SSST for high band the verification is done ...

Page 41: ...all joint end and a short right angle hex head wrench There is no standard torque specification for waveguide screws in this application When mating two waveguide devices use care that the fixed index pins do not scratch the flat surface of the opposite flange If the Test Ports are precision type flanges ALWAYS use the removable precision index pins from the calibration kit at every step of the ca...

Page 42: ...Test Ports The captivated screw length required for this application will be different When a Sliding Load is used in the calibration the load element position is adjusted via a multiple turn knob There may be arbitrary reference marks as to load position The calibration routine requires six different positions of the load It is not critical as to the absolute spacing of each position but it is ad...

Page 43: ...NA system For example set the Start frequency to 65 GHz and the Stop frequency to 110 GHz when 3744A EW Modules are installed to the VNA system 7 Set the of Points to 401 8 Press the Avg key and set the IFBW to 1 kHz Measurement Calibration 9 Press the Calibration key 10 Select Cal kit AutoCal Characterization 11 Insert the USB flash drive that contains the Calibration Kit Component Coefficients i...

Page 44: ...bration Kit to the test port of Port 2 module 25 Select Port 1 Reflective Devices 26 Install the thinner shim and the short from the 3655X 1 Calibration Kit to the test port of Port 1 module 27 Select Short 1 to measure the calibration standard 28 Remove the shim and the short from Port 1 29 Install the thicker ship and the short to Port 1 30 Select Short 2 to measure the calibration standard 31 R...

Page 45: ...he thicker ship and the short to Port 2 55 Select Short 2 to measure the calibration standard 56 Remove the shim and the short from Port 2 57 Install the waveguide load to Port 2 58 Select Load to measure the calibration standard 59 Remove the load from Port 2 60 Select Sliding Load 61 Set the vernier knob of the sliding load to 0 and install the sliding load to Port 2 62 Select Position 1 to meas...

Page 46: ...Connect the Flann precision waveguide straight section Flann 26443 4122 for WR 12 Flann 27443 4123 for WR 10 to Port 1 and leave one end open 79 Select Scale Auto Scale Active Trace 80 Select Marker 81 Click Mkr 1 Mkr 2 and Mkr 3 to turn these markers On 82 Using the mouse to move Mkr 1 and Mkr 2 to adjacent peaks of the ripple with the greatest negative trough or the adjacent troughs if the rippl...

Page 47: ...le with a positive peak Directivity X dB Below Reference value Mkr 2 value Ref X value Example Assuming Mkr 1 15 9634 dB Mkr 2 17 452 dB and Mkr 3 15 641 dB then Average Value 15 9634 dB 15 641 dB 2 15 8022 dB dBp p 17 452 dB 15 8022 dB 1 6498 dB RF Chart closest value 1 7430 dB RF Chart corresponding X dB Below Reference value 20 dB RF Chart corresponding Ref X value 0 9151 dB Directivity 20 dB 1...

Page 48: ...gnitude values of Mkr 1 and Mkr 3 at the peaks or troughs and divide the result by two This is the average value of the tow peaks or troughs Refer to the example formula below Average Value Mkr 1 Mkr 3 2 96 Calculate the peak to peak ripple value absolute difference of the Mkr 2 value and the average value as follows dBp p Mkr 2 value Average Value 97 On the RF measurement chart in Figure x find t...

Page 49: ...esults on page A 2 101 Disconnect the Flann precision waveguide section with the mounted flush short from Port 1 module Port 2 Source Match Verification 102 Install the Flann precision waveguide section with the mounted flush short to Port 2 module 103 Select Trace Next Trace until the VNA displays the S22 104 Select Display Trace Format Log Mag 105 Repeat Step 91 to Step 99 106 Record the calcula...

Page 50: ...439 1 9250 0 3162 10 10 2 3866 3 3018 5 6884 1 7849 0 2818 11 11 2 1567 2 8756 5 0322 1 6709 0 2512 12 12 1 9465 2 5126 4 4590 1 5769 0 2239 13 13 1 7547 2 2013 3 9561 1 4985 0 1995 14 14 1 5802 1 9331 3 5133 1 4326 0 1778 15 15 1 4216 1 7007 3 1224 1 3767 0 1585 16 16 1 2778 1 4988 2 7766 1 3290 0 1413 17 17 1 1476 1 3227 2 4703 1 2880 0 1259 18 18 1 0299 1 1687 2 1986 1 2528 0 1122 19 19 0 9237 ...

Page 51: ...tandards in the 3659 Calibration Verification Kit Verify that the measured values are within the specified measurement uncertainty limits Verification Result Determination The software verification process compares the measured S parameter data of the standards against the original standard data for those devices that was obtained using the Factory Standard Broadband VNA System at Anritsu The fact...

Page 52: ...IB 2 Dismount both MA25300A Millimeter Wave modules from the probe station if required 3 Place both modules on a leveled surface so that both test ports are facing each other 4 Install the 0 8 mm female to female adapter from the 3659 Calibration Verification Kit on the Port 1 MA25300A Millimeter Wave Module This converts Port 1 from a male test port to a female test port 5 Install the 0 8 mm male...

Page 53: ...nd the verification standards for damage cleanliness and proper connection and torquing Also check connections of the interconnect RF IF coaxial cables and their phase stability These are the most common causes for verification failures Note Since different calibration methods are required to cover the 145 GHz range SOLT for low band and SSST for high band the verification is done in two steps Low...

Page 54: ...GHz using the 3659 Calibration Verification Kit Measure the S parameters of the verification standards in the 3659 Calibration Verification Kit Verify that the measured values are within the specified measurement uncertainty limits Verification Result Determination The software verification process compares the measured S parameter data of the standards against the original standard data for those...

Page 55: ... 10410 00306 Rev F 3 19 ME7838G WR05 Waveguide System Verification This procedure is used to verify the measurement capability of the VNA calibration kit and any required adapters as a system from 140 GHz to 220 GHz by analyzing the S parameter measurements of a specified waveguide device ...

Page 56: ...ter to the MS4647B rear panel system GPIB connector It is the upper GPIB port labeled IEEE488 2 GPIB 2 Dismount both MA25400A Millimeter Wave modules from the probe station if required 3 Un install the wafer probes from both modules and then install 33 8G50 Adapters to both modules This converts the test port of both modules to 0 8 mm male coaxial connector 4 Place both modules on a leveled surfac...

Page 57: ...ponents and the verification standards for damage cleanliness and proper connection and torquing Also check connections of the interconnect RF IF coaxial cables and their phase stability These are the most common causes for verification failures Note Since different calibration methods are required to cover the 145 GHz range SOLT for low band and SSST for high band the verification is done in two ...

Page 58: ... a leveled surface 4 On the VNA set the start and stop frequency to 140 GHz and 220 GHz respectively 5 Set the of Points to 401 6 Select Averaging and set the IFBW to 100 Hz Measurement Calibration 7 Select Calibration 8 Select Calibrate Manual Cal 2 Port Cal Modify Cal Setup Line Type Waveguide 9 Select Cal Method LRL LRM 10 Select Edit Cal Params 11 Set up the TWO PORT CAL SETUP LRL LRM Waveguid...

Page 59: ...2 module 18 Click Back on the lower section of the right side menu to return to the previous menu 19 Select Port 1 2 Lines Matches 20 Install the 0 596 mm shim from the WR05 Calibration Kit between Port 1 module and Port 2 module 21 Select Device 2 Line to measure 22 Remove the 0 596 mm shim 23 Connect Port 1 module to Port 2 module 24 Select Device 1 Line to measure 25 Click Back on the lower sec...

Page 60: ... 31 Install MI WAVE WR05 Straight Section between Port 1 module and Port 2 module 32 Select Calibration CALIBRATION Cal Options Sec Match Correction On 33 Verify that S11 and S22 are better than 10 dB and verify that S21 and S12 are better than 2 dB 34 Record the measured values to Table A 3 S Parameter Measurements Results on page A 3 ...

Page 61: ... at the connectors of the DUT or at where the wafer probes contacted the DUT The reflected and or transmitted signals and a sample of the stimulus signal are down converted to intermediate frequency IF signals These IF signals are then converted into digital information and processed by a Digital Signal Processor DSP in the VectorStar MS464xx Series VNA to determine the real and imaginary vector c...

Page 62: ...E7838 Series VNA System Interconnections DUT Control IF Signals LO2 LO1 RF Port 1 Port 2 RF RF LO LO Test IF Ref IF Power Control Test IF Ref IF Power Control VectorStar VNA 3739X Test Set Analog Out Ext ALC In Millimeter Wave Module Port 1 Millimeter Wave Module Port 2 REF TEST LO RF SRC REF TEST LO RF SRC ...

Page 63: ...cies up to 30 GHz in Broadband configuration Providing the RF signal to be multiplied in the Millimeter Wave modules to generate the stimulus signal for operation 54 GHz and above Providing two LO signals to the Millimeter Wave Modules required for frequency conversion operation above 30 GHz Processing the Reference and Test IF signals from the Millimeter Wave Modules Figure 4 2 shows the componen...

Page 64: ...ith signal frequency varying from 26 to 40 GHz when the instrument is set in Modular BB mode and sweeping from 54 GHz to 110 GHz For MS464xB with Option 080 081 082 083 084 085 086 087 088 089 The typical power output level of both LO1 and LO2 Ports is 6 dBm from 5 GHz to 10 GHz When the instrument is set in Modular BB mode and sweeping from 54 GHz to 220 GHz the minimum output levels of the RF po...

Page 65: ... Wave Modules Passing IF signals from Millimeter Wave Modules to MS464xA VNA Figure 4 3 shows the block diagram of the 3739A Test Set The Port 1 and Port 2 LO Out ports have a typical power output at 5 to 10 GHz of 6 dBm The Port 1 and Port 2 RF Out ports have minimum power output at 26 to 40 GHz of 10 dBm Figure 4 3 3739A Test Set Block Diagram Control PCB Power Supply a1 IF Out b1 IF Out a2 IF O...

Page 66: ...of 6 dBm in Modular BB mode used when Anritsu 3743 3744 series or MA25300A series modules are installed and at 8 to 22 GHz of 17 dBm in mmW mode used when OML VDI Millimeter Wave modules are installed When used with the MA25400A modules the LO range is 5 to 19 GHz with a minimum output power of 10 dBm Both Port 1 and Port 2 RF Out ports have minimum power output at 26 to 40 GHz of 5 dBm in Modular...

Page 67: ...ents Figure 4 5 shows the block diagram of the 3739C Test Set Both Port 1 and Port 2 LO Out ports have minimum power output at 5 to 10 GHz of 6 dBm in Modular BB mode used when Anritsu 3743 3744 Series or MA25300A modules are installed and at 8 to 22 GHz of 17 dBm in mmW mode used when OML VDI Millimeter Wave modules are installed When used with the MA25400A modules the LO range is 5 to 19 GHz wit...

Page 68: ... to 30 GHz test signals from the W1 Connector Test Port to the MS4647B VNA Generating stimulus signals for operation 54 GHz and above Generating LO Level Detector outputs Generating Source Level Detector outputs Converting test signals to IF for operation above 30 GHz 3744A EE Millimeter Wave Module The 3744A EE or SM6499 Millimeter Wave Module performs the following task Generating 56 to 95 GHz s...

Page 69: ... Passing 70 kHz to 30 GHz test signals from the 0 8 mm Connector Test Port to the MS4647B VNA Generating stimulus signals for operation 54 GHz and above Generating LO Level Detector outputs Generating Source Level Detector outputs Converting test signals to IF for operation above 30 GHz MA25400A Millimeter Wave Module The MA25400A Millimeter Wave Module performs the following task Passing stimulus...

Page 70: ...ted test signal received at the W1 connector test port of the 3743A Module is then fed back to the test port of the MS4647A or MS4647B VNA for further signal processing For operation above 30 GHz the MS4647A or MS4647B VNA outputs two LO signals to the 3739A 3739B or 3739C Test Set The LO signals are amplified and attenuated if required It is then routed to Port 1 LO Output or Port 2 LO Output and...

Page 71: ...cy of the RF signal is tripled Test Signal Processing The MS464xA or MS464xB VNA outputs two LO signals to the 3739A 3739B or 3739C Test Set The LO signals are amplified and attenuated if required It is then routed to Port 1 LO Output or Port 2 LO Output and fed to the 3744A Millimeter Wave Modules In the 3744A Millimeter Wave Module a sample of the stimulus signal is down converted to intermediat...

Page 72: ...ipled Test Signal Processing For operation in frequencies up to 30 GHz the reflected transmitted test signal received at the W1 connector test port of the 3743E Module is then fed back to the test port of the MS4647B VNA for further signal processing For operation above 30 GHz the MS4647B VNA outputs two LO signals to the 3739B or 3739C Test Set The LO signals are amplified and attenuated if requi...

Page 73: ...10 GHz the frequency of the RF signal is tripled Test Signal Processing The MS464xB VNA outputs two LO signals to the 3739B or 3739C Test Set The LO signals are amplified and attenuated if required It is then routed to Port 1 LO Output or Port 2 LO Output and fed to the 3744E Millimeter Wave Modules In the 3744E Millimeter Wave Module a sample of the stimulus signal is down converted to intermedia...

Page 74: ...frequency of the RF signal is doubled and then tripled Test Signal Processing For operation in frequencies up to 30 GHz the reflected transmitted test signal received at the 0 8 mm connector test port of the MA25300A Module is then fed back to the test port of the MS4647B VNA for further signal processing For operation above 30 GHz the MS4647B VNA outputs two LO signals to the 3739C Test Set The L...

Page 75: ...signal is tripled For operation between 110 and 150 GHz the frequency of the RF signal is doubled and then tripled For operation between 150 and 220 GHz the frequency of the RF signal is double doubled and then tripled Test Signal Processing For operation in frequencies up to 30 GHz the reflected transmitted test signal received at the 0 6 mm flange based coaxial interface test port of the MA25400...

Page 76: ...4 10 ME7838G System Operation Theory Of Operation 4 16 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 77: ...replaced in the 3739B or 3739C Test Set A100 Port 1 Doubler Module ND75883 R or 3 ND75883 R A1 Bias Control PCB Assembly ND75882 R or 3 ND75882 R The main RF Source Module is replaced in the MS464xA or MS464xB VNA Equipment Required Anritsu ML2437A or ML2438A Power Meter Anritsu MA2474D Power Sensor Anritsu 33KK50B or K220B K m to K m Adapter Pasternack PE9644 K m to K f Right Angle Adapter Krytar...

Page 78: ...K m to K m Adapter to the RF Out port of the Directional Coupler Refer to Figure 5 1 on page 5 2 Figure 5 1 LO Level Cal Setup Broadband Configuration shown DUT Control IF Signals LO2 LO1 RF Port 1 Port 2 RF RF LO LO Test IF Ref IF Power Control Test IF Ref IF Power Control MS464XX VNA 3739X Test Set Analog Out Ext ALC In mmW Module Port 1 mmW Module Port 2 REF TEST LO RF SRC REF TEST LO RF SRC Po...

Page 79: ...e RF Out port of the Coaxial Directional Coupler 10 Connect the power sensor to the Coupling Port of the Directional Coupler 11 On the MS464xx VNA select System and then Diagnostics 12 The Diagnostics Access dialog box appears providing an entry field to enter the diagnostics access password as shown below in Figure 5 2 13 Enter the password CajaNueva in the Password field and click OK 14 The Diag...

Page 80: ...6 Rev F VectorStar ME7838 Series MM 15 Select Hardware Cal to access the Hardware Cal Menu as shown in Figure 5 4 16 Select Src LO Level Cal and the LO Level Cal Menu appears as shown in Figure 5 5 Figure 5 4 HARDWARE CAL Menu Figure 5 5 LO LEVEL CAL Menu ...

Page 81: ...odular LO Level Cal dialog box as shown in Figure 5 6 appears 18 Click the Start Cal button to start the calibration 19 After the calibration is complete remove the Power Sensor and Directional Coupler from the Port 1 LO connector of the 3739A 3739B or 3739C Test Set and re connect the LO cable Figure 5 6 Modular LO LEVEL CAL Dialog Box ...

Page 82: ...ort cable was replaced Base ALC Calibration Perform the following calibration procedures if the Millimeter Wave module has been swapped repaired or replaced IF Leveling Calibration Band 1 54 to 70 GHz Band 2 70 to 125 GHz and Band 3 125 to 145 GHz for MA25300A 125 to 170 GHz for MA25400A and Band 4 170 to 220 GHz RF Leveling Calibration Band 1 54 to 70 GHz Band 2 70 to 125 GHz and Band 3 125 to 14...

Page 83: ...VNA 8 Install the Anritsu SC7770 power sensor to the Anritsu ML2437A or ML2438A power meter 9 Install the Keysight W8486A power sensor to the Keysight 437B E4418B or N1913A power meter 10 If the GPIB Address of the Keysight Power Meter has not been changed to 15 do the following a For Keysight 437B Power Meter a Power on the power meter b Press the SPECIAL key SHIFT PRESET LOCAL c Press the up or ...

Page 84: ...n on power meters if not done previously and allow them to warm up at least 30 minutes 15 Connect the Anritsu SC7770 power sensor to the Calibrator port of the ML243XA power meter and calibrate the power sensor 16 Disconnect the power sensor from the power meter Calibrator port and install the 33WFVF50 W1 female to V female adapter to the Anritsu SC7770 power sensor If the Millimeter Wave modules ...

Page 85: ...9 20 The Diagnostics Access dialog box appears providing an entry field to enter the diagnostics access password as shown below in Figure 5 7 21 Select Hardware Cal to access the Hardware Cal menu as shown in Figure 5 8 Figure 5 7 DIAGNOSTICS ACCESS Dialog Box Figure 5 8 HARDWARE CAL Menu ...

Page 86: ...5 3 ALC Level Calibration Adjustment 5 10 PN 10410 00306 Rev F VectorStar ME7838 Series MM 22 Select ALC Cal the ALC Level Cal menu appears as shown in Figure 5 9 Figure 5 9 ALC LEVEL CAL Menu ...

Page 87: ...he Test Port of the Millimeter Wave Module at Port 1 5 Select Port 1 ALC Cal 6 Click the Start Cal button to start the calibration 7 When calibration is complete disconnect the Anritsu SC7770 power sensor and connect the Keysight W8486A power sensor to the Test Port of the Millimeter Module at Port 1 If the Millimeter Wave Modules are MA25300A or MA25400A remove the 33W 8F50 Adapter from the Anrit...

Page 88: ...ter Wave Module at Port 1 Port 2 ALC Calibration 22 Connect the ELVA 1 WR05 220 GHz Power Sensor to the Test Port of the Millimeter Wave Module at Port 2 23 Select Port 2 ALC Cal 24 Click the Start Cal button to start the calibration 25 When the calibration is complete disconnect the ELVA 1 WR05 220 GHz Power Sensor from the Test Port of the Millimeter Wave Module at Port 2 26 Change the Freq Rang...

Page 89: ...Calibration VectorStar ME7838 Series MM PN 10410 00306 Rev F 5 13 37 Change the Freq Range to Bnd1 54G 70GHz 38 Select Port 2 ALC Cal 39 Click the Start Cal button to start the calibration 40 The ALC Calibration is now complete ...

Page 90: ...ct Port 1 ALC Cal 5 Click the Start Cal button to start the calibration 6 After calibration is complete disconnect the Anritsu SC7770 power sensor from the Millimeter Wave Module at Port 1 7 Change the Freq Range to Bnd2 70G 125GHz 8 Connect the Keysight W8486A power sensor to the Test Port of the Millimeter Wave Module at Port 1 9 Select Port 1 ALC Cal 10 Click the Start Cal button to start the c...

Page 91: ...Adjustment 5 3 ALC Level Calibration VectorStar ME7838 Series MM PN 10410 00306 Rev F 5 15 Figure 5 11 ALC 3739 IF Menu ...

Page 92: ...n is complete disconnect the Keysight W8486A power sensor 16 Connect the Anritsu SC7770 power sensor to the Test Port of the 3743A 3744A Module at Port 1 17 Change Freq Range to Bnd1 54G 70GHz 18 Select Port 1 ALC Cal 19 Click the Start Cal button to start the calibration 20 After calibration is complete disconnect the Anritsu SC7770 power sensor from the Millimeter Wave Module at Port 1 Port 2 RF...

Page 93: ...Wait until the calibration is complete Port 2 IF Leveling Calibration 29 Select Back and then IF Leveling 30 Select Port 2 ALC Cal 31 Click the Start Cal button to start the calibration 32 After calibration is complete disconnect the Keysight W8486A power sensor from the Millimeter Wave Module at Port 2 33 Change the Freq Range to Bnd1 54G 70GHz 34 Connect the Anritsu SC7770 power sensor to the Te...

Page 94: ...5 3 ALC Level Calibration Adjustment 5 18 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 95: ...rument covers to gain access to subassemblies and modules When using these procedures please observe the warning and caution notices Warning Hazardous voltages are presented inside the instrument when AC line power is connected Before removing any covers turn off the instrument via the Main power switch on the front panel and unplug the AC power cord Caution Many assemblies and modules in the 3739...

Page 96: ...s VNA System It assumes that setup and installation errors have been eliminated Procedure 1 Ensure that the system is sweeping in the system specified frequency range e g 70 kHz to 110 GHz for ME7838A Broadband configuration 56 to 94 GHz for Banded Millimeter Wave configuration using the 3744A EE modules with Trace 1 set to S11 Trace 2 set to S12 Trace 3 set to S21 and Trace 4 set to S22 2 Determi...

Page 97: ...ted to Port 2 or the 3739X Test Set If the fault is below 54 GHz the fault lies in the MS4647A or MS4647B VNA for Broadband configuration If the fault is shown on B2 trace at frequency starting at 30 GHz or above the fault lies in the Millimeter Wave Module connected to Port 2 or the 3739X Test Set assuming that the MS464xx VNA has passed the VNA Source and LO Power Level Check c Refer to General ...

Page 98: ...NA RF Port Output Level Check 4 Set the VNA Start Frequency to 54 GHz and Stop Frequency of the ME7838X VNA system 5 Turn on CW Mode 6 Connect the power sensor to the RF port of the MS464xx VNA 7 Vary the CW Frequency and monitor the output to see if the power level is at the expected level per Table 6 1 8 If the output level is unexpectedly low the fault lies in the MS464xx VNA Note This test ass...

Page 99: ...VNA vary the CW Frequency and monitor the output with the Spectrum Analyzer to see if the power level is 3 2 dBm 14 If the output is unexpectedly low the fault lies in the MS464xx VNA LO2 Port Output Level Check 15 Disconnect the RF Cable from the LO1 port of the VNA and connect it to the LO2 port 16 Set CW frequency to 54 GHz 17 Vary the CW Frequency and monitor the output with the Spectrum Analy...

Page 100: ...ace 1 set to S11 Trace 2 set to S12 Trace 3 set to S21 and Trace 4 set to S22 2 Select Trace 1 and then select Display Trace Format Set Trace Format to Log Mag 3 Select Response User defined The User defined menu appears 4 Set Numerator to A1 Denominator to 1 and Driver Port to Port 1 5 Use a mouse to move the Reference Line to one graticule below top scale 6 Repeat Step 2 through Step 5 for Trace...

Page 101: ...t the DC bias voltages of RF components and fan assembly are present on the Test Set A1 Bias Control PCB Assembly Refer to Troubleshooting Test 3739A A1 Bias Control PCB DC Bias Check on page 6 10 Verify that the power level of the Port 1 RF port and Port 2 RF port are at the expected level Refer to Troubleshooting 3739A Test Set Port Power Level Check on page 6 11 Verify that the power level of t...

Page 102: ... unplug the AC power cord 2 Remove the top cover of the 3739A Test Set 3 Connect the Test Set to AC power and turn the unit back on 4 Use a digital multimeter to measure the DC voltages at the test points stated in Table 6 2 on the Test Set Bias Control PCB Assembly and verify if they are at the expected level Refer to Figure 6 1 on page 6 9 for locations of test points 5 If any of the voltages is...

Page 103: ...st 3739A Power Supply DC Check VectorStar ME7838 Series MM PN 10410 00306 Rev F 6 9 Voltage Test Points E17 E18 E19 and E20 Common Test Point TP1 Figure 6 1 Locations of Power Supply Voltage Test Points on 3739A A1 Board E20 E19 TP1 E17 E18 ...

Page 104: ...he top cover of the 3739A Test Set 3 Unplug the cable harnesses connected to the connectors listed in Table 6 3 4 Connect the Test Set to AC power and turn the unit back on 5 Use a digital multimeter to measure the DC voltages presented at the connectors per Table 6 3 Refer to Figure 6 1 on page 6 9 for connector locations 6 If any of the voltage is not present replace the A1 Bias Control PCB Asse...

Page 105: ...Port 2 RF port and Port 2 LO port on the 3739A Test Set RF Port Output Level Check 4 Set the VNA Start Frequency to 54 GHz and Stop Frequency to 110 GHz 5 Press the Trace key and set of Trace to 1 Trace Max Trace Format to Log Mag and Trace 1 to S11 6 Turn on CW Mode 7 Connect the power sensor to the Port 1 RF port of the 3739A Test Set 8 Vary the CW Frequency and monitor the output to see if the ...

Page 106: ...Power off the 3739A Test Set b Remove the Port 1 Isolator bracket mounting screws c Disconnect the Right angle adapter from the Port 1 LO Amplifier d Connect the cable from Spectrum Analyzer RF input to the output of the Port 1 LO Amplifier e Power on the 3739A Test Set f Check if the Port 1 LO Amplifier output level is low g If the level is 9 dBm then replace the Port 1 LO Amplifier h If the leve...

Page 107: ... that the DC bias voltages of RF components and fan assembly are present on the Test Set Bias Control PCB Assembly Refer to Troubleshooting Test 3739B C A1 Bias Control PCB DC Bias Check on page 6 17 Verify that the power level of the Port 1 RF port and Port 2 RF port are at the expected level Refer to Troubleshooting 3739B C Test Set Port Power Level Check on page 6 18 Verify that the power level...

Page 108: ...power cord 2 Remove the top cover of the 3739B C Test Set 3 Remove the stiffener plate 4 Connect the Test Set to AC power and turn the unit back on 5 Use a digital multimeter to measure the DC voltages at the test points stated in Table 6 5 on the Test Set Bias Control PCB Assembly and verify if they are at the expected level Refer to Figure x for locations of test points 6 If any of the voltages ...

Page 109: ...t 3739B C Power Supply DC Check VectorStar ME7838 Series MM PN 10410 00306 Rev F 6 15 Voltage Test Points E17 E18 E19 and E20 Common Test Point TP1 Figure 6 2 Locations of Power Supply Voltage Test Points on 3739B A1 Board E17 E20 E19 E18 TP1 ...

Page 110: ...Supply DC Check Troubleshooting 6 16 PN 10410 00306 Rev F VectorStar ME7838 Series MM Voltage Test Points E17 E18 E19 and E20 Common Test Point TP1 Figure 6 3 Locations of Power Supply Voltage Test Points on 3739C A1 Board E17 E20 TP1 E18 E19 ...

Page 111: ...r of the 3739B C Test Set 3 Remove the stiffener plate 4 Unplug the cable harnesses connected to the connectors listed in Table 6 3 5 Connect the Test Set to AC power and turn the unit back on 6 Use a digital multimeter to measure the DC voltages presented at the connectors per Refer to Figure 6 1 on page 6 9 for connector locations 7 If any of the voltage is not present replace the A1 Bias Contro...

Page 112: ...wer meter setting 3 Disconnect the cables connected to Port 1 RF port Port 1 LO port Port 2 RF port and Port 2 LO port on the 3739B C Test Set RF Port Output Level Check 4 Set the VNA Start Frequency to 54 GHz and Stop Frequency to the top frequency of the ME7838 Series VNA system 5 Press the Trace key and set of Trace to 1 Trace Max Trace Format to Log Mag and Trace 1 to S11 6 Turn on CW Mode 7 C...

Page 113: ... Spectrum Analyzer RF In port and the Port 1 LO port of the 3739B C Test Set 16 On the Spectrum Analyzer set the Reference Level to 15 dBm Start frequency to 4 GHz and Stop frequency to 11 GHz 21 GHz for ME7838G system 17 On the VNA vary the CW Frequency and monitor the output with the Spectrum Analyzer to see if the power level is 9 dBm 18 If the output is unexpectedly low replace Port 1 LO Doubl...

Page 114: ...6 14 Troubleshooting 3739B C Test Set Port Power Level Check Troubleshooting 6 20 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 115: ...3 Power down the VNA 4 Power down the Test Set 5 Disconnect the rear panel cables between VNA and the Test Set Disconnect the Power Cable from the AC Mains 6 When the modules were originally shipped each module was calibrated and labeled with the appropriate VNA Port Number Make a note as to which port each module is connected 7 Disconnect the front panel cables between the VNA Test Set and the Mi...

Page 116: ...t Front 3 Front Panel Assembly RF LO1 and LO2 connectors at top connect to MS464xA VNA RF Deck 4 Port 1 Connectors RF LO Power Test and Ref Power Switch and LED to left 5 Port 2 Connectors Power LO RF Ref and Test Ground plug to right 6 Left Side 7 Right Side 8 Test Set Rear 9 Rear Panel Assembly Figure 7 1 3739A Broadband Millimeter Wave Test Set Caution To provide protection for the rear panel c...

Page 117: ...e 4 Test Set Rear Panel 5 Front Right Side Handle Feet and Hardware 6 Front Left Side Handle Feet and Hardware 7 Right Side Dress Plate 8 Rear Left Feet and Hardware Removed here 9 Rear Right Feet and Hardware Removed here 10 Top Cover Screws 11 Top Cover Lift from rear Figure 7 2 3739A Test Set Initial Disassembly and Removing Top Cover 3739A Test Set 1 Front 2 Front Panel Port 1 Left Side Port 2...

Page 118: ...Set Ext ALC Out upper 10 Connect the rear panel I O cable VNA External I O to Test Set External I O 11 If used connect a GPIB cable to either the IEEE 488 2 GPIB Connector and or the Dedicated GPIB Connector 12 Connect the VNA Power Cable to the VNA Do not yet connect to AC Mains 13 Connect the Test Set Power Cable to Test Set Do not yet connect to AC Mains Front Panel VNA to Test Set Connections ...

Page 119: ...dules were removed from their brackets either the factory original or a user defined install them in the bracket observing which side of the module is up The factory as shipped orientation is with the RF SRC and LO connectors and the W1 connector closest to the bracket The procedure steps below assume the factory as shipped orientation If the module orientation has been changed the general recomme...

Page 120: ...Power up the Test Set by pressing the front panel Power Switch The Power LED should illuminate 30 Power up the VNA as follows a On the VNA Rear Panel set the AC Power Rocker Switch to ON or The VNA is in standby mode and the Front Panel orange Standby LED is illuminated b On the VNA Front Panel press the Standby Operate key for at least one second The green Operate LED illuminates The splash scree...

Page 121: ...placeable Part Chassis Locations The general location of all chassis internal components is shown in Figure 7 3 below Figure 7 3 3739A Test Set Chassis Top Side Major Component Locations 1 of 2 P N Left Right 1 Front 2 Front Panel Port 1 Port 2 5 3 Rear 4 11 6 5 9 10 12 7 8 15 18 16 13 17 14 A1 A103 A100 A101 A102 A106 A105 A107 A104 P6 J2 J3 ...

Page 122: ...ssembly 10 A102 Isolator Module Port 1 5 GHz to 10 GHz 3 1000 58 11 A101 Modulator Module Port 1 ND73161 72231 With soldered on cable harness 12 A100 LO Amplifier Module 0 01 GHz to 20 GHz Port 1 ND73159 3 1070 13 With soldered on cable harness 13 A103 RF Amplifier Module 20 GHz to 40 GHz ND73158 72234 With soldered on cable harness 14 A104 SPDT Switch Module 0 04 to 40 GHz 70242 15 SPDT Switch Co...

Page 123: ...ffer slightly in appearance and color The mounting hold and connector locations will be the same Replacement Procedure Common Disassembly Procedures 1 Power down the VNA and Test Set and disconnect the cables between the VNA Test Set and Modules Move the Test Set to the repair area See Disassembly Procedure Power Disconnect and Covers on page 7 1 above 2 Remove the top cover as described in the pr...

Page 124: ...step If the harness is to be replaced a Disconnect the other end of the cable harness from the A1 PCB connector P4 b Remove the harness c Connect the replacement harness to the A1 PCB connector P4 Install Replacement Power Supply 7 Place the replacement power supply into the chassis and loosely insert the four screws 8 Make sure the power supply is correctly positioned and then tighten all four sc...

Page 125: ...73163 R Use this procedure to replace A1 Bias Control PCB Assembly The A1 PCB location is shown above in Figure 7 3 on page 7 7 Replacement Parts A1 Bias Control PCB Assembly ND73163 R Reference Figures The A1 Bias Control PCB is located near the rear center of the chassis as shown in Figure 7 3 on page 7 7 above The A1 PCB Connector and Test Point locations are shown in below ...

Page 126: ... Removal and Replacement Procedures For 3739A 7 12 PN 10410 00306 Rev F VectorStar ME7838 Series MM Figure 7 5 A1 Bias Control PCB Assembly ND73163 3 72143 3 1 of 2 J4 J5 J2 J3 P6 P4 P5 P2 P3 P7 P10 P9 P8 P11 P13 P12 P14 P1 TP1 E17 E18 E19 E20 ...

Page 127: ...lacement A1 PCB into the chassis two large J2 and J3 connectors towards the Front Panel 9 Loosely insert the ten pan head screws and make sure the PCB is correctly positioned and then tighten the screws 10 Reconnect the cable harnesses to the A1 PCB as listed in Table 7 1 on page 7 14 E17 Test Point E18 Test Point E19 Test Point E20 Test Point J2 To Front Panel Port 1 Power Signal J3 To Front Pane...

Page 128: ... J3 To Front Panel Port 2 Power Signal J4 To Rear Panel External Analog Out BNC Connector J5 To Rear Panel External ALC Out BNC Connector P1 To A100 LO Amplifier Module Port 1 P2 To A105 LO Amplifier Module Port 2 P3 To A103 RF Amplifier Module P4 To Power Supply Cable Harness P5 To A104 SPDT Switch Module P6 To Rear Panel External I O Connector P7 To Front Panel Power Switch Cable Harness P8 To P...

Page 129: ...d to the module 5 Note the orientation of the module connectors for input and output 6 Remove the module and bracket assembly from the chassis Basic Module Re Installation Procedure Use this procedure to re install a module or module bracket assembly into the chassis 1 If equipped place the module bracket assembly into the chassis observing the correct input output orientation of the module connec...

Page 130: ...removal and replacement of the A105 module is described in the next section below 1 A100 LO Amplifier Module ND73159 3 1070 13 with 3 71916 1 soldered on cable harness Connects to Port 1 2 A105 LO Amplifier Module ND73160 3 1070 13 with 3 71916 2 soldered on cable harness Connects to Port 2 3 Pedestal Mounting Bracket 4 Hex Socket Head Screws 0 80 0 375 2 each 5 Pan Head Phillips Screws for bracke...

Page 131: ...dulator Module connects between the A107 Isolator Module and the A105 LO Amplifier Module Each side of the A106 Module uses an RF Elbow connector which is transferred to the replacement A106 Module The replacement module comes with a soldered on cable harness that connects to A1 PCB Connector P11 1 A101 Modulator Module Port 1 With 3 73601 1 soldered on cable harness A Right Angle Elbow M M Adapte...

Page 132: ...t section below 1 A102 Isolator Module Port 1 5 GHz to 10 GHz 3 1000 58 Note that the A102 A107 modules does not have an attached cable harness 2 A107 Isolator Module Port 2 5 GHz to 10 GHz 3 1000 58 3 Pedestal Mounting Bracket 4 Bracket to Module Mounting Screws 2 each Note that these screws thread into the bottom of the module The module and bracket assembly must be removed from the chassis to s...

Page 133: ...fier Module ND73158 R and Bracket Assembly 1 A103 RF Amplifier Module 20 GHz to 40 GHz With 3 71907 soldered on cable harness Connects to A1 PCB Connector P3 2 Pedestal Mounting Bracket 3 Module to Bracket Mounting Screws 2 each 4 Bracket to Chassis Mounting Screws 4 each Figure 7 9 A103 Module and Bracket Mounting Detail A103 Port 1 1 2 3 4 ...

Page 134: ... R and Bracket Assembly 1 A104 SPDT Switch Module 0 04 GHz to 40 GHz 70242 2 Module to Bracket Mounting Screws 4 each 3 Mounting Bracket 4 Bracket to Chassis Mounting Screws 4 each 5 Hex Threaded PCB Standoffs 3 each 6 SPDT Switch Control PCB Assembly 64951 3 7 PCB Mounting Screws 3 each Figure 7 10 A104 Module and Bracket Mounting Detail A104 1 2 4 5 6 7 3 ...

Page 135: ...wer Disconnect and Covers on page 7 4 Table 7 2 3739A Module Replacement Sequence 1 of 3 Module To Be Replaced Figure Reference Removal and Replacement Sequence A100 LO Amplifier Module Port 1 ND73159 R Figure 7 6 A100 and A105 Modules Bracket Mounting Detail on page 7 16 Remove A102 from chassis Remove A101 from chassis Two screws hold module to bracket Separate A100 Module from bracket Four scre...

Page 136: ...screws hold module to bracket Assemble replacement A103 Module and bracket Replace A103 in chassis Cable harness connects to A1 PCB Connector P3 A104 SPDT Switch 0 04 to 40 GHz 70242 R Figure 7 10 A104 Module and Bracket Mounting Detail on page 7 20 Remove A103 from chassis Remove A104 from chassis Four screws hold A104 Module Assembly to chassis Remove SPDT Switch Control PCB Assembly 64951 3 whi...

Page 137: ...A101 and A106 Modulator Modules on page 7 17 Remove A107 from chassis Remove A106 from chassis No bracket Separate A106 Module from two RF right angle elbow connectors Attach elbow connectors to replacement A106 Module Note elbow orientation Replace A106 in chassis Replace A106 in chassis Cable harness connects to A1 PCB Connector P11 A107 Isolator Module Port 2 5 GHz to 10 GHz 3 1000 58 Figure 7 ...

Page 138: ...head M4 machine screws Open end wrench for M4 Kep Nuts Reference Figures See Figure 7 3 on page 7 7 above for the location of the Rear Panel Fan Assembly See Figure 7 11 below for assembly details 1 Rear Panel 2 Finger Guard and Fan Mounting Screws 4 each 3 Finger Guard and Fan Mounting Nuts 4 each 4 External Finger Guard 5 Rear Panel Fan 6 Air Flow into Chassis Note fan flow direction arrow 7 Rea...

Page 139: ...g hardware as shown below in 6 Using a Phillips head screwdriver and an M4 open end wrench loosen and remove the four 4 screws and Kep nuts that hold the fan assembly and the outside finger guard to the Rear Panel 7 Remove the to be replaced fan assembly and insert the replacement assembly Note the airflow arrow orientation on the fan to move air into the chassis 8 Insert each mounting screw throu...

Page 140: ...omponents from the to be replaced Front Panel Installing those components on the replacement Front Panel Installing the replacement Front Panel in the chassis Reconnecting the RF and signal cables The Front Panel general orientation is shown above in Figure 7 3 on page 7 7 See Figure 7 12 below for an illustration of the Front Panel viewed from inside the chassis where Port 1 is on the right with ...

Page 141: ...nnector c LO2 connector 1 Front Panel Assembly ND73169 Viewed from Inside Chassis Power Switch and Port 1 on right Port 2 and Ground on left Cable Harnesses Provided with ND73169 2 Power LED Cable Harness 3 Port 1 LED Cable Harness 4 Port 1 Power Cable Harness 5 Port 2 Power Cable Harness 6 Port 1 LED Cable Harness 7 Ground Plug Cable Harness Disconnect These Cables Top Row 8 RF Connector Semi Rig...

Page 142: ...e panels 9 Carefully gather up the cable harnesses attached to the Front Panel and remove the Front Panel assembly from the chassis Carefully feed the Power Switch through the opening so it and its cable harness remain with the chassis Remove the F F Adapters from the To Be Replaced Front Panel 10 Using a 4 mm 5 16 torque end wrench loosen and remove the hex nut and washer holding each female fema...

Page 143: ...wrench to torque the cable nut Connect Cable Top Row 19 Connect the top row of semi rigid coaxial cables to these locations RF LO1 LO2 20 As above torque each connector to 0 9 N m 8 lbf in using two end wrenches Tighten All Screws 21 Torque each connector to 0 9 N m 8 lbf in 22 Tighten the side panel screws 23 Tighten the screws holding the power switch in place Connect Replacement Front Panel Cab...

Page 144: ...7 10 Front Panel Assembly ND73169 71894 Removal and Replacement Procedures For 3739A 7 30 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 145: ...the VNA 4 Power down the Test Set 5 Disconnect the rear panel cables between VNA and the Test Set Disconnect the Power Cable from the AC Mains 6 When the millimeter wave modules were originally shipped each module was calibrated and labeled with the appropriate VNA Port Number Make a note as to which port each module is connected 7 Disconnect the front panel cables between the VNA Test Set and the...

Page 146: ...r Feet attached to unit 2 Test Set Front 3 Front Panel Assembly RF LO1 and LO2 connectors at top connect to MS464xx VNA RF Deck 4 Port 1 Connectors RF LO Power Test and Ref Power Switch and LED to left 5 Port 2 Connectors Power LO RF Ref and Test Ground plug to right 6 Left Side 7 Right Side 8 Test Set Rear 9 Rear Panel Assembly Figure 8 1 3739B C Broadband Millimeter Wave Test Set Caution To prov...

Page 147: ...est Set Rear Panel 5 Front Right Side Handle Feet and Hardware 6 Front Left Side Handle Feet and Hardware 7 Right Side Dress Plate 8 Rear Left Feet and Hardware Removed here 9 Rear Right Feet and Hardware Removed here 10 Top Cover Screws 11 Top Cover Lift from rear Figure 8 2 3739B C Test Set Initial Disassembly and Removing Top Cover 3739B C Test Set 1 Front 2 Front Panel Port 1 Left Side Port 2 ...

Page 148: ...b2 IF to Test Set IF Output b2 10 Connect the rear panel BNC cables a VNA Ext Analog Out left to Test Set Ext Analog In lower b VNA Ext ALC right to Test Set Ext ALC Out upper 11 Connect the rear panel I O cable VNA External I O to Test Set External I O 12 If used connect a GPIB cable to either the IEEE 488 2 GPIB Connector and or the Dedicated GPIB Connector 13 Connect the VNA Power Cable to the ...

Page 149: ...t 2 Thread tighten and torque as above Route the other end of the cable assembly to the Port 2 Module location 20 Place the modules into position observing the correct module to port configuration 21 If the modules were removed from their brackets either the factory original or a user defined install them in the bracket observing which side of the module is up The factory as shipped orientation is...

Page 150: ...nd Test Set Power Connections 29 Connect the VNA and Test Set to AC Mains power 30 Power up the Test Set by pressing the front panel Power Switch The Power LED should illuminate 31 Power up the VNA as follows a On the VNA Rear Panel set the AC Power Rocker Switch to ON or The VNA is in standby mode and the Front Panel orange Standby LED is illuminated b On the VNA Front Panel press the Standby Ope...

Page 151: ...able Part Chassis Locations The general location of chassis internal components is shown in Figure 8 3 below Figure 8 3 3739B C Test Set Chassis Top Side Major Component Locations 1 of 2 A1 PCB J2 J3 Power Supply A100 A101 A105 A106 1010 47 6 dB Attenuator A104 A103 P5 P15 P16 P1 P2 P3 P12 P20 P19 P13 P11 P4 P7 P10 P6 P14 P9 P8 J4 J5 J10 J11 J12 J6 J7 J9 J8 ...

Page 152: ...R or 3 ND75883 R A103 RF Amplifier Module 8 GHz to 40 GHz ND75884 R or 3 ND75884 R With soldered on cable harness A104 SPDT Switch Module 0 04 to 40 GHz 70242 R or 3 70242 R SPDT Switch Control PCB Assembly ND70926 R or 3 ND70926 R Mounts on top of the A104 A detachable cable connects to A1 PCB Connector P15 A105 RF Amplifier Module 8 GHz to 40 GHz ND75885 R or 3 ND75885 R With soldered on cable h...

Page 153: ... Power Supply Cable Harness The Power Supply location is shown above in Figure 8 3 on page 8 7 Replacement Parts Power Supply Module 3 40 183 Power Supply Cable Harness 3 ND73168 Reference Figure A representative Power Supply module is shown below in Figure 8 4 The installed version may differ slightly in appearance and color The mounting hold and connector locations will be the same Figure 8 4 Po...

Page 154: ...tribution Module and the front panel Power Switch Remove Power Supply 5 Remove the four Phillips pan head screws holding the Power Supply in place and remove the unit Remove Power Supply Cable Harness 6 Only perform this step is the harness is to be replaced Otherwise skip ahead to the next step If the harness is to be replaced a Disconnect the other end of the cable harness from the A1 PCB connec...

Page 155: ...Power Disconnect and Covers on page 8 1 above 2 Remove the top cover as described in the procedure above Disconnect Attached Cable Harnesses 3 Disconnect all cables attached to the A1 PCB 4 Leave the other ends of the cables attached to their destination connectors 5 See Table 8 1 on page 8 12 below for a list of all A1 PCB Cable Connections Remove and Replace the A1 PCB 6 Undo and remove the ten ...

Page 156: ...anel External a1 IF Connector J7 To Front Panel Port 1 Ref a1 IF Connector J8 To Rear Panel External a2 IF Connector J9 To Front Panel Port 2 Ref a2 Connector J10 To Front Panel AUX I O Connector P1 To A103 RF Amplifier Module P2 To A105 RF Amplifier Module P3 To A106 RF Amplifier Module P4 To Power Supply Cable Harness P5 To A104 SPDT Switch Module P6 To Rear Panel External I O Connector P7 To Fr...

Page 157: ...nector J5 To Rear Panel External ALC Out BNC Connector J6 To Rear Panel External a1 IF Connector J7 To Front Panel Port 1 Ref a1 IF Connector J8 To Rear Panel External a2 IF Connector J9 To Front Panel Port 2 Ref a2 Connector J10 To Front Panel AUX I O Connector P1 To A103 RF Amplifier Module P2 To A105 RF Amplifier Module P3 To A106 RF Amplifier Module P4 To Power Supply Cable Harness P5 To A104 ...

Page 158: ...he A1 PCB assembly Leave the cable attached to the module 5 Note the orientation of the module connectors for input and output 6 Remove the module assembly from the chassis General Module Installation Procedure Use this procedure to re install a module or module bracket assembly into the chassis 1 If equipped place the module assembly into the chassis observing the correct input output orientation...

Page 159: ...all the assembly and connect the coupling nuts but do not tighten 8 Install and tighten the four 4 mounting screws 9 Torque each coupling nut to 0 9 N m 8 lbf in using two 8 mm 5 16 wrenches using one to hold the connector body and the other to torque the cable hex nut A100 Doubler Module Connects to Port LO 1 1 Disconnect the ribbon cable from the module 2 Remove the four 4 M3 x 0 5 x 20 mm pan h...

Page 160: ... J1 4 Disconnect the semi rigid cable coupling nut from the front panel VNA RF input connector 5 Remove the module with semi rigid cables attached 6 Transfer the semi rigid cables to J1 and J2 of the new A103 module but do not tighten the coupling nuts 7 Install the assembly then align and connect the coupling nuts to A104 and front panel RF but do not tighten 8 Install the two 2 module mounting s...

Page 161: ...rom A1 PCB connector P2 If replacing A106 disconnect the module power cable from connector P3 2 Loosen the semi rigid cable coupling nut at amplifier input J1 3 Disconnect the semi rigid cable coupling nut from the amplifier J2 output and bend the cable enough to provide enough clearance to disconnect the J1 input 4 Remove the two 2 M3 x 0 5 x 8 mm module mounting screws 5 Remove the module 6 Inse...

Page 162: ... MM A104 SPDT Switch Module 70242 R or 3 70742 R and Bracket Assembly The A104 Switch Module Assembly connects between the A103 RF Amplifier output and A105 and A106 amplifier inputs For replacement detail see Figure 8 8 and Figure 8 9 Figure 8 8 A104 Module and Bracket Replacement Detail 1 of 2 A104 6 A105 A106 A104 3 4 4 5 1 2 ...

Page 163: ...ment switch module See Figure 8 9 for A104 assembly detail 7 Insert the new A104 assembly into the chassis then align and attach the switch J1 input semi rigid coupling nut but do not tighten 8 Install the four 4 A104 bracket to chassis mounting screws finger tight do not yet tighten them 9 Slide both the A105 and A106 amplifier modules back into position and align and finger tighten the semi rigi...

Page 164: ... MM 1 A104 SPDT Switch Module 0 04 GHz to 40 GHz 70242 2 Module to Bracket Mounting Screws 4 each 3 Mounting Bracket 4 Bracket to Chassis Mounting Screws 4 each 5 Hex Threaded PCB Standoffs 3 each 6 SPDT Switch Control PCB Assembly 64951 3 7 PCB Mounting Screws 3 each Figure 8 9 A104 Module PCB and Bracket Mounting Detail 2 of 2 ...

Page 165: ...rocedure to replace the rear panel fan assembly The top cover must be removed to replace the fan Required Tools Phillips head screwdriver for Phillips head M4 machine screws Open end wrench for M4 Kep Nuts Reference Figures See Figure 8 3 on page 8 7 above for the location of the Rear Panel Fan Assembly See Figure 8 10 below for assembly details Figure 8 10 Rear Panel Fan Assembly 1 of 2 1 2 3 4 6...

Page 166: ...ger guard to the Rear Panel 7 Remove the to be replaced fan assembly and insert the replacement assembly Note the airflow arrow orientation on the fan to move air into the chassis 8 Insert each mounting screw through the finger guard rear panel fan and secure in place with a Kep nut and loosely tighten 9 When all four screws are in place make sure the fan assembly is centered in the rear panel ope...

Page 167: ...ssembly from the Test Set Chassis Removing components from the to be replaced Front Panel Installing those components on the replacement Front Panel Installing the replacement Front Panel in the chassis Reconnecting the RF and signal cables The Front Panel general orientation is shown above in Figure 8 3 on page 8 7 See Figure 8 11 below for an illustration of the Front Panel viewed from inside th...

Page 168: ...ss 3 Port 1 LED Cable Harness 4 Port 1 Power Cable Harness 5 Port 2 Power Cable Harness 6 Port 1 LED Cable Harness 7 Ground Plug Cable Harness Disconnect These Cables Top Row 8 RF Connector Semi Rigid Coaxial Cable 9 LO1 Connector Semi Rigid Coaxial Cable and 6 dB attenuator 10 LO2 Connector Semi Rigid Coaxial Cable and 6 dB attenuator Disconnect Switch 11 Power Switch and Cable Harness Assembly R...

Page 169: ...ect the Front Panel Ground plug cable harness by removing the Kep nut holding the ring lug to the chassis 7 Undo the two screws holding the switch bracket to the Front Panel Switch Standoffs Leave the switch harness cables connected at their destinations Remove Front Panel 8 Remove the hardware holding the Front Panel to the side panels 9 Carefully gather up the cable harnesses attached to the Fro...

Page 170: ...onnector body and the other to torque the cable hex nut Connect Cable Middle Row 17 Connect the middle row of semi rigid coaxial cables to these locations Port 1 RF Port 1 LO Port 2 LO Port 2 RF 18 As above torque each connector to 0 9 N m 8 lbf in using a plain 8 mm 5 16 end wrench to hold the connector body and the 4 mm torque wrench to torque the cable nut Connect Cable Top Row 19 Connect the t...

Page 171: ...D Connect to A1 PCB Connector P12 d Port 1 Power Control Connect to A1 PCB Connector J2 e Port 2 Power Control Connect to A1 PCB Connector J3 Common Reassembly Procedures 25 If no other interior replacement procedures are required follow the common reassembly procedures described above Reassembly Procedure Power Disconnect and Covers on page 8 4 ...

Page 172: ...8 9 Front Panel Assembly Removal and Replacement Procedures For 3739B and 3739C 8 28 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

Page 173: ...e of the ME7838A E Millimeter Wave configuration VNA system and the WR05 test results of the ME7838G VNA system Make a copy of the following Test Record pages and document the measured values each time performance verification is performed Continuing to document this process each performance verification session provides a detailed history of the instrument s performance ...

Page 174: ...Model Module Serial Number Table A 1 Directivity Results Frequency Port 1 Module Port 2 Module Port 1 Measured Port 2 Measured Specification 56 to 94 GHz SM6499 SM6499 dB dB 44 dB 56 to 94 GHz 3744A EE 3744A EE dB dB 44 dB 56 to 94 GHz 3744E EE 3744E EE dB dB 44 dB 65 to 110 GHz SM6527 SM6527 dB dB 40 dB 65 to 110 GHz 3744A EW 3744A EW dB dB 40 dB 65 to 110 GHz 3744E EW 3744E EW dB dB 40 dB Table ...

Page 175: ...asurements ME7838G Operator Date VectorStar VNA Model MS4647B VectorStar VNA Serial Number VectorStar VNA Options 51 61 62 70 80 81 84 85 Port 1 Millimeter Wave Module Model MA25400A Module Serial Number Port 2 Millimeter Wave Module Model MA25400A Module Serial Number Table A 3 S Parameter Measurements Results S Parameters Measured Test Limits S11 dB 10 dB max S21 dB 2 dB max S12 dB 2 dB max S22 ...

Page 176: ...A 3 ME7838G WR05 S Parameter Measurements Test Record Test Records A 4 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...

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Page 178: ...Anritsu utilizes recycled paper and environmentally conscious inks and toner Anritsu Company 490 Jarvis Drive Morgan Hill CA 95037 2809 USA ...

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