Anritsu MS27102A User manual

Maintenance Manual
Remote Spectrum Monitor
MS27102A, 9 kHz to 6 GHz
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
Part Number: 10580-00420
Revision: A
Published: October 2015
Copyright 2015 Anritsu Company

TRADEMARK ACKNOWLEDGMENTS
Windows, Windows XP, Microsoft Paint, Microsoft Word, Microsoft Access, Microsoft Excel, Microsoft PowerPoint,
and Visual Studio are all registered trademarks of Microsoft Corporation.
Acrobat Reader is a registered trademark of Adobe Corporation.
MATLAB is a a registered trademark of The MathWorks Corporation.
NI is a trademark of the National Instruments Corporation.
NOTICE
Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the
proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The
drawings, specifications, and information contained herein are the property of Anritsu Company, and any
unauthorized use or disclosure of these drawings, specifications, and information is prohibited; they shall not be
reproduced, copied, or used in whole or in part as the basis for manufacture or sale of the equipment or software
programs without the prior written consent of Anritsu Company.
UPDATES
Updates, if any, can be downloaded from the Documents area of the Anritsu Website at:
http://www.anritsu.com
For the latest service and sales contact information in your area, please visit:
http://www.anritsu.com/contact-us
Notes On Export Management
This product and its manuals may require an Export License or approval by the government of the product
country of origin for re-export from your country.
Before you export this product or any of its manuals, please contact Anritsu Company to confirm whether or
not these items are export-controlled.
When disposing of export-controlled items, the products and manuals need to be broken or shredded to such a
degree that they cannot be unlawfully used for military purposes.

MS27102A MM PN: 10580-00420 Rev. A Safety-1
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu Company uses the
following symbols to indicate safety-related information. For your own safety, please read the information
carefully before operating the equipment.
Symbols Used in Manuals
Safety Symbols Used on Equipment and in Manuals
The following safety symbols are used inside or on the equipment near operation locations to provide
information about safety items and operation precautions. Ensure that you clearly understand the meanings of
the symbols and take the necessary precautions before operating the equipment. Some or all of the following
five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached
to products that are not shown in the diagrams in this manual.
Danger
This indicates a risk from a very dangerous condition or procedure that could result in
serious injury or death and possible loss related to equipment malfunction. Follow all
precautions and procedures to minimize this risk.
Warning This indicates a risk from a hazardous condition or procedure that could result in
light-to-severe injury or loss related to equipment malfunction. Follow all precautions
and procedures to minimize this risk.
Caution
This indicates a risk from a hazardous procedure that could result in loss related to
equipment malfunction. Follow all precautions and procedures to minimize this risk.
This indicates a prohibited operation. The prohibited operation is indicated symbolically
in or near the barred circle.
This indicates a compulsory safety precaution. The required operation is indicated
symbolically in or near the circle.
This indicates a warning or caution. The contents are indicated symbolically in or near
the triangle.
This indicates a note. The contents are described in the box.
These indicate that the marked part should be recycled.

Safety-2 PN: 10580-00420 Rev. A MS27102A MM
For Safety
Warning Always refer to the operation manual when working near locations at which
the alert mark, shown on the left, is attached. If the operation, etc., is
performed without heeding the advice in the operation manual, there is a
risk of personal injury. In addition, the equipment performance may be
reduced.
Moreover, this alert mark is sometimes used with other marks and
descriptions indicating other dangers.
Warning
When supplying power to this equipment, connect the accessory 3-pin
power cord to a 3-pin grounded power outlet. If power is supplied without
grounding the equipment, there is a risk of receiving a severe or fatal
electric shock.
Warning
This equipment can not be repaired by the operator. Do not attempt to
remove the equipment covers or to disassemble internal components.
Only qualified service technicians with a knowledge of electrical fire and
shock hazards should service this equipment. There are high-voltage parts
in this equipment presenting a risk of severe injury or fatal electric shock to
untrained personnel. In addition, there is a risk of damage to precision
components.
Caution
Electrostatic Discharge (ESD) can damage the highly sensitive circuits in
the instrument. ESD is most likely to occur as test devices are being
connected to, or disconnected from, the instrument’s front and rear panel
ports and connectors. You can protect the instrument and test devices by
wearing a static-discharge wristband. Alternatively, you can ground
yourself to discharge any static charge by touching the outer chassis of the
grounded instrument before touching the instrument’s front and rear panel
ports and connectors. Avoid touching the test port center conductors
unless you are properly grounded and have eliminated the possibility of
static discharge.
Repair of damage that is found to be caused by electrostatic discharge is
not covered under warranty.

MS27102A MM PN: 10580-00420 Rev. A Contents-1
Table of Contents
Chapter 1—General Information
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Anritsu Customer Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-4 Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Chapter 2—MS27102A Verification
2-1 Frequency Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Amplitude Accuracy Verification, 1-Port Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Displayed Average Noise Level (DANL), 1-Port Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Chapter 3—MS27102A Option Verification
3-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Amplitude Accuracy Verification, 2-Port Instruments (Option 402). . . . . . . . . . . . . . . . . . . . . . 3-1
3-3 Displayed Average Noise Level (DANL), 2-Port Instruments (Option 402) . . . . . . . . . . . . . . . 3-3
Chapter 4—Assembly Replacement
4-1 Opening the MS27102A Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Main PCB Assembly Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 MUX PCB Replacement (Instruments with Option 402) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-4 MS27102A N Connector Port Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Chapter 5—Troubleshooting
5-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 Communication Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-3 Level Accuracy Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Appendix A—Test Records
A-1 Test Records for 1-Port MS27102A Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-2 Test Records for 2-Port MS27102A Verification (Option 402) . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Contents-2 PN: 10580-00420 Rev. A MS27102A MM

MS27102A MM PN: 10580-00420 Rev. A 1-1
Chapter 1 — General Information
1-1 Introduction
This manual provides maintenance instructions for the Anritsu Remote Spectrum Monitor, Model MS27102A.
This manual includes:
•General information including:
•List of recommended equipment to perform maintenance and verification testing (Table 1-1)
•Replaceable parts list (Table 1-2)
•Performance verification procedures:
•Chapter 2, “MS27102A Verification”
•Chapter 3, “MS27102A Option Verification”
•Assembly replacement and troubleshooting procedures:
•Chapter 4, “Assembly Replacement”
•Chapter 5, “Troubleshooting”
•Blank test records are included in Appendix A.
•Copy the blank test records from Appendix A and use them to record measured values. Anritsu
recommends making a copy of the blank test records to document measurements each time a
performance verification is performed. Continuing to document this process each time provides a
detailed history of the instrument performance.
Familiarity with the basic operation of the MS27102A is assumed.
1-2 Anritsu Customer Service Centers
For the latest service and sales information in your area, please visit the following URL:
http://www.anritsu.com/contact-us
Choose a country for regional contact information.

1-3 Recommended Test Equipment General Information
1-2 PN: 10580-00420 Rev. A MS27102A MM
1-3 Recommended Test Equipment
Table 1-1 lists recommended test equipment for use in testing and maintaining the spectrum monitor.
Table 1-1. Recommended Test Equipment for MS27102A Maintenance and Verification
Equipment Critical Specification
Recommended
Manufacturer/Model
Synthesized Signal Generator Frequency: 0.1 Hz to 6 GHz,
Power Output: +16 dBm,
Step attenuator installed
Anritsu Model MG3692A/B/C, with
Options 2A, 3, 4, 22, 15xa
a.MG3692A models require Option 15 to achieve power of +16 dBm at 3.5 GHz. MG3692B models do not require Option 15 to
achieve power of +16 dBm at 3.5 GHz.
Power Meter Power Range: –70 dBm to +20 dBm Anritsu Model ML2438A
Power Sensor Frequency: 100 kHz to 6 GHz
Power Range: –30 dB to +20 dB
Anritsu Model SC7400
Frequency Reference Frequency: 10 MHz Symmetricom RubiSource T&M
Fixed Attenuator 10 dB Attenuation Aeroflex/Weinschel Model 44-10
Power Splitter Frequency: DC to 6 GHz Aeroflex/Weinschel Model 1870A
50 Ohm Termination Frequency: DC to 6 GHz Anritsu Model SM/PL-1
RF Coaxial Cable Frequency: DC to 18 GHz
N(m) to N(m), 50 ohm
Anritsu Model 15NN50-1.5C
Coaxial Cable BNC(m) to BNC(m), 50 ohm Anritsu Model 2000-1627-R
Adapter DC to 6 GHz, K(m) to N(f) Anritsu Model 34RKNF50
Adapter DC to 6 GHz, N(m) to N(m) Anritsu Model 34NN50A
M25 Port Tool Port 1 and Port 2 Replacement Tool Anritsu Model T4461
1/4 Inch Torque Wrench 15 in - lbf setting Any
Phillips Screw Driver #1 Phillips Head Any
8 mm Open Ended Wrench 8mm Any

General Information 1-4 Replaceable Parts
MS27102A MM PN: 10580-00420 Rev. A 1-3
1-4 Replaceable Parts
Table 1-2. List of Replaceable Parts
Part Number Description
ND82026 Main PCB Assembly
ND82027 MUX PCB Assembly, for 2-port instruments
ND82030 Main/MUX PCB Assembly, for 2-port instruments
3-2000-1828 IP67 Chassis
(includes top and bottom covers, plugs, internal Ethernet, DC and GPS cables)
3-790-775 IP67 Top Cover
3-790-774 IP67 Bottom Enclosure
3-790-777 RF Port Plug (single plug on back of bottom enclosure)
3-513-140 RF In Port, N(F) to SMA(F) Adapter
3-75261-5 10 MHz Reference Cable (BNC to MCX)
3-806-328 GPS Cable (SMA to MCX)
3-806-326 DC Cable (Connects SPA to DC connector on chassis)
3-81592 Port 1 to SPA Cable, for 1-port instruments
3-81593 Port 1 to SPA Cable, for 2-port instruments
3-81594 Port 2 to SPA Cable, for 2-port instruments
3-81591 SPA to MUX Cable, SMA to SMA, for 2-port instruments
3-67367 SPA to MUX Interface Cable (USB Type A to 1x5)
3-81597 EMI Foam Block, 120 mm x 265 mm x 31 mm, for 2-port instruments
3-806-327 Ethernet Cable Internal, 200 mm
3-553-560 Cap with Chain, N(F) Cap
3-553-561 Cap with Chain, SMA(F) Cap
3-81341 Bracket for BNC Connector of 10 MHz Reference Input
3-81599-1 Conductive Foam, 152 mm x 15 mm x 15 mm
3-81599-2 Conductive Foam, 228 mm x 15 mm x 15 mm
3-790-780 Bracket, External Mount for IP67 Chassis
3-81595 Mounting Bracket Extension Set for IP67 Chassis
3-553-559 CAT6 Cable Seal for cable OD 4.5 mm to 6.5 mm. Includes seal nut, clip, seal, body, and
gasket. Allows sealed connection to IP67 chassis
3-553-558 Seal for cable OD 6.6 mm to 8.6 mm. This is seal only and replaces seal from 3-553-559.
If nut, clip, body, and gasket are needed, order both 3-553-558 and 3-553-559.
3-510-155 Power Connector Housing. Includes seal nut, clip, seal, body, locknut, housing, and
O-ring. This allows the input power cables to be connected to this part, and then
connected to the IP67 chassis.
3-553-557 CAT6 Module, without internal jumper. This is the internal RJ45 connector allowing an
external Ethernet cable to connect to the IP67 chassis.

1-4 Replaceable Parts General Information
1-4 PN: 10580-00420 Rev. A MS27102A MM

MS27102A MM PN: 10580-00420 Rev. A 2-1
Chapter 2 — MS27102A Verification
2-1 Frequency Accuracy Verification
The following test is used to verify the frequency accuracy of the MS27102A. This procedure is the same
whether the MS27102A is a 1- or 2-port instrument (Option 402).
Equipment Required
•Anritsu MG3692x Synthesized Signal Source
•10 MHz Frequency Reference
•Anritsu 34RKNF50 Adapter
•Anritsu 15NN50-1.5C RF Coaxial Cable
•BNC(m) to BNC(m) Coaxial Cable
Procedure
1. Connect the 10 MHz Frequency Reference to the 10 MHz Ref In connector on the MG3692x Synthesized
Signal Source.
2. Connect the MG3692x RF output to RF In, Port 1, on the MS27102A.
3. Turn on the 10 MHz Reference Standard, Anritsu MG3692x, and the MS27102A. Allow the instruments
to warm up for 10 minutes.
4. Set the MG3692x output to 1 GHz CW with an RF Output Level of –30 dBm.
5. On the MS27102A, set the Reference Level to –10 dBm.
6. On the MS27102A, set the Center Frequency to 1 GHz.
7. On the MS27102A, set the Span to 10 kHz.
8. On the MS27102A, set the RBW to 1 kHz and VBW to 300 Hz.
9. On the MS27102A, set the Sweep Type to Single and Initiate a Single Sweep.
10. On the MS27102A, move the cursor to the peak.
•For the 1-port MS27102A, record the frequency value in Table A-1, “MS27102A Frequency
Accuracy” on page A-2.
•For the 2-port MS27102A, record the frequency value in Table A-7, “MS27102A Frequency
Accuracy” on page A-4.
11. Set the MG3692x frequency to 5.9 GHz.
12. Set the MS27102A center freq to 5.9 GHz.
13. On the MS27102A, initiate a Single Sweep.
14. On the MS27102A, move the cursor to the peak.
•For the 1-port MS27102A, record the frequency value in Table A-1 on page A-2.
•For the 2-port MS27102A, record the frequency value in Table A-7 on page A-4.

2-2 Amplitude Accuracy Verification, 1-Port Instruments MS27102A Verification
2-2 PN: 10580-00420 Rev. A MS27102A MM
2-2 Amplitude Accuracy Verification, 1-Port Instruments
The following test is used to verify the Amplitude Accuracy of the 1-port MS27102A (instruments without
Option 402). If the MS27102A has two ports (Option 402), follow the Amplitude Accuracy verification
procedure in Chapter 3.
Equipment Required
•MG3692x, Synthesized Signal Source
•ML2438A, Power Meter
•SC7400, Power Sensor
•1870A, Power Splitter
•44-10, 10 dB Attenuator
•34RKNF50, 50 ohm Adapter
•34NN50A, 50 ohm Adapter
•15NN50-1.5C, RF Coaxial Cable
Procedure (Pre-Amp Off, –30 dBm, 0 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect the MS27102A RF input to the output of the power splitter, including the 10 dB attenuator.
8. Set the MS27102A Sweep Mode to No FFT.
9. Set the MS27102A Span to 10 kHz.
10. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
11. Set the MS27102A Reference Level to –20 dB.
12. Set the MS27102A Input Attenuation to 0 dB.
13. Set the MS27102A Center Frequency to 100.5 kHz.
14. Set the cal factor of the SC7400 to 100.5 kHz.
15. Set the MG3692x to 100.5 kHz and adjust the output level so the ML2438A reads –20.0 dBm.
16. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record it in
Table A-2, “Amplitude Accuracy Verification (Pre Amp Off, -30 dBm, 0 dB Input Attn.)” on page A-2.
17. Repeat Step 13 to Step 16 for the other frequencies in Table A-2 on page A-2.

MS27102A Verification 2-2 Amplitude Accuracy Verification, 1-Port Instruments
MS27102A MM PN: 10580-00420 Rev. A 2-3
Procedure (Pre-Amp Off, –2 dBm, 50 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect the MS27102A RF input to output of the power splitter including the 10 dB attenuator.
8. Set the MS27102A Sweep Mode to No FFT.
9. Set the MS27102A Span to 10 kHz.
10. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
11. Set the MS27102A Reference Level to 10 dB.
12. Set the MS27102A Input Attenuation to 50 dB.
13. Set the MS27102A Center Frequency to 100.5 kHz.
14. Set the cal factor of the SC7400 to 100.5 kHz.
15. Set the MG3692x to 100.5 kHz, and adjust the output level so the ML2438A reads 8.0 dBm.
16. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record it in
Table A-3, “Amplitude Accuracy Verification (Pre Amp Off, -2 dBm, 50 dB Input Attn.)” on page A-2.
17. Repeat Step 13 to Step 16 for the other frequencies in Table A-3 on page A-2.
Procedure (Pre-Amp On, –50 dBm, 0 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect the MS27102A RF input to output of the power splitter including the 10 dB attenuator.
8. Set the MS27102A Sweep Mode to No FFT.
9. Set the MS27102A Span to 10 kHz.
10. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
11. Set the MS27102A Reference Level to –40 dB.
12. Set the MS27102A Input Attenuation to 0 dB.
13. Ensure no power is being inputted to the MS27102A.
14. Set the MS27102A Pre-Amp to On by placing a check mark in the box next to the Pre-Amp setting.
15. Set the MS27102A Center Frequency to 100.5 kHz.
16. Set the cal factor of the SC7400 to 100.5 kHz.
17. Set the MG3692x to 100.5 kHz, and adjust the output level so the ML2438A reads –40.0 dBm.
18. On the MS27102A, use the SCPI command, FETCH:PEAK?, to return the peak value and record it in
Table A-4, “Amplitude Accuracy Verification (Pre Amp On, -50 dBm, 0 dB Input Attn)” on page A-3.
19. Repeat Step 15 to Step 18 for the other frequencies in Table A-4 on page A-3.

2-3 Displayed Average Noise Level (DANL), 1-Port Instruments MS27102A Verification
2-4 PN: 10580-00420 Rev. A MS27102A MM
2-3 Displayed Average Noise Level (DANL), 1-Port Instruments
The following test is used to verify the Displayed Average Noise Level (DANL) of the 1-port MS27102A
(instruments without Option 402). If the MS27102A has two ports (Option 402), follow the DANL verification
procedure in Chapter 3.
Equipment Required
•Anritsu SM/PL-1, 50 ohm Termination
Procedure (With Pre Amp Off)
1. Connect the 50 ohm Termination to the MS27102A RF In connector.
2. Turn on the MS27102A, Preset the instrument and allow it to warm up for 10 minutes.
3. Set the MS27102A Sweep Mode to FFT.
4. Set the MS27102A Sweep Type to Single.
5. Set the RBW to 100 kHz and the VBW to 1 kHz.
6. Set the MS27102A Input Attenuation to 0 dB.
7. Set the MS27102A Detection to RMS.
8. Set the MS27102A Reference Level to –20 dBm.
9. Ensure the Pre-Amp is turned Off.
10. Set the Start/Stop Frequency for the first measurement in Table A-5, “MS27102A DANL with Pre Amp
Off” on page A-3, and Initiate a Single Sweep.
11. Wait until one sweep is completed.
12. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-5 on page A-3.
13. Repeat Step 10 to Step 12 for the remaining frequencies in Table A-5 on page A-3.
14. For each measured 100 kHz RBW value in the test record, convert it to the normalized 1 Hz RBW value
by subtracting 50 dB.
For example, if the marker shows a value of –100 dBm at 100 kHz RBW, the calculated value at 1 Hz
RBW is –150 dBm.
–100 dBm – 50 dB = –150 dBm
15. Enter the calculated values in the test records using the “Calculated for 1 Hz RBW” column of Table A-5
on page A-3. Use the calculated value when comparing against the specification.

MS27102A Verification 2-3 Displayed Average Noise Level (DANL), 1-Port Instruments
MS27102A MM PN: 10580-00420 Rev. A 2-5
Procedure (With Pre Amp On)
1. Connect the 50 ohm Termination to the MS27102A RF In connector.
2. Turn on the MS27102A, Preset the instrument and allow it to warm up for 10 minutes.
3. Set the MS27102A Sweep Mode to FFT.
4. Set the MS27102A Sweep Type to Single.
5. Set the RBW to 100 kHz and the VBW to 1 kHz.
6. Set the MS27102A Input Attenuation to 0 dB.
7. Set the MS27102A Detection to RMS.
8. Set the MS27102A Reference Level to –20 dBm.
9. Set the MS27102A Pre Amp On by checking the box next to the Pre Amp setting.
10. Set the Start/Stop frequency for the first measurement in Table A-6, “MS27102A DANL with Pre Amp
On” on page A-3, and initiate a Single Sweep.
11. Wait until one sweep is completed.
12. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-6 on page A-3.
13. Repeat Step 10 to Step 12 for the remaining frequencies in Table A-6 on page A-3.
14. For each measured 100 kHz RBW value in the test record, convert it to the normalized 1 Hz RBW value
by subtracting 50 dB.
For example, if the marker shows a value of –100 dBm at 100 kHz RBW, the calculated value at 1 Hz
RBW is –150 dBm.
–100 dBm – 50 dB = –150 dBm
15. Enter the calculated values in the test records using the “Calculated for 1 Hz RBW” column of Table A-6
on page A-3. Use the calculated value when comparing against the specification.

2-3 Displayed Average Noise Level (DANL), 1-Port Instruments MS27102A Verification
2-6 PN: 10580-00420 Rev. A MS27102A MM

MS27102A MM PN: 10580-00420 Rev. A 3-1
Chapter 3 — MS27102A Option Verification
3-1 Introduction
This chapter describes the verification process for options available on the MS27102A
3-2 Amplitude Accuracy Verification, 2-Port Instruments (Option 402)
The following test is used to verify the Amplitude Accuracy of the 2-port MS27102A (Option 402).
Equipment Required
•MG3692x, Synthesized Signal Source
•ML2438A, Power Meter
•SC7400, Power Sensor
•1870A, Power Splitter
•44-10, 10 dB Attenuator
•34RKNF50, 50 ohm Adapter
•34NN50A, 50 ohm Adapter
•15NN50-1.5C, RF Coaxial Cable
Procedure (Pre-Amp Off, –30 dBm, 0 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect Port 1 of the MS27102A RF input to output of the power splitter including the 10 dB attenuator.
8. Preset the MS27102A.
9. Set the MS27102A Sweep Mode to No FFT.
10. Set the MS27102A Span to 10 kHz.
11. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
12. Set the MS27102A Reference Level to –20 dB.
13. Set the MS27102A Input Attenuation to 0 dB.
14. Set the MS27102A Center Frequency to 100.5 kHz.
15. Set the cal factor of the SC7400 to 100.5 kHz.
16. Set the MG3692x to 100.5 kHz, and adjust the output level so the ML2438A reads –20.0 dBm.
17. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-8, “Amplitude Accuracy Verification For Units with Option 402 (Pre Amp Off, -30 dBm, 0 dB
Input Attn.)” on page A-4.
18. Repeat Step 14 to Step 17 for the other frequencies in Table A-8 on page A-4.
19. Move the power splitter connection from Port 1 to Port 2 on the MS27102A.

3-2 Amplitude Accuracy Verification, 2-Port Instruments (Option 402) MS27102A Option Verification
3-2 PN: 10580-00420 Rev. A MS27102A MM
20. Enable the Port 2 connection on the MS27102A using the following SCPI Command:
:Route:Input:Close 2
21. Repeat Step 14 to Step 17 for all frequencies in Table A-8 on page A-4.
Procedure (Pre-Amp Off, –2 dBm, 50 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect Port 1 of the MS27102A RF input to output of the power splitter including the 10 dB attenuator.
8. Preset the MS27102A.
9. Set the MS27102A Sweep Mode to No FFT.
10. Set the MS27102A Span to 10 kHz.
11. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
12. Set the MS27102A Reference Level to 10 dB.
13. Set the MS27102A Input Attenuation to 50 dB.
14. Set the MS27102A Center Frequency to 100.5 kHz.
15. Set the cal factor of the SC7400 to 100.5 kHz.
16. Set the MG3692x to 100.5 kHz and adjust the output level so the ML2438A reads 8.0 dBm.
17. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-9, “Amplitude Accuracy Verification For Units with Option 402 (Pre Amp Off, -2 dBm, 50 dB
Input Attn.)” on page A-4.
18. Repeat Step 14 to Step 17 for the other frequencies in Table A-9 on page A-4.
19. Move the power splitter connection from Port 1 to Port 2 on the MS27102A.
20. Enable the Port 2 connection on the MS27102A using the following SCPI Command:
:Route:Input:Close 2
21. Repeat Step 14 to Step 17 for all frequencies in Table A-9 on page A-4.
Procedure (Pre-Amp On, –50 dBm, 0 dB Input Attenuation)
1. Power On the MG3692x, ML2438A, and MS27102A and allow instruments to warm up for 10 minutes.
2. Connect MG3692x to the 15NN50-1.5C cable.
3. Connect the other end of the 15NN50-1.5C cable to the input of the 1870A power splitter.
4. Connect the SC7400 power sensor to the ML2438A power meter and cal/zero the sensor.
5. Connect the SC7400 directly to one of the two outputs on the 1870A power splitter.
6. Connect the other output of the 1870A power splitter to the 34NN50A and 44-10 attenuator.
7. Connect Port 1 of the MS27102A RF input to output of the power splitter including the 10 dB attenuator.
8. Preset the MS27102A.
9. Set the MS27102A Sweep Mode to No FFT.
10. Set the MS27102A Span to 10 kHz.

MS27102A Option Verification 3-3 Displayed Average Noise Level (DANL), 2-Port Instruments (Option 402)
MS27102A MM PN: 10580-00420 Rev. A 3-3
11. Set the MS27102A RBW to 1 kHz and VBW to 10 Hz.
12. Set the MS27102A Reference Level to –40 dB.
13. Set the MS27102A Input Attenuation to 0 dB.
14. Ensure no power is being inputted to the MS27102A.
15. Set the MS27102A Pre-Amp to On by placing a check mark in the box next to the Pre-Amp setting.
16. Set the MS27102A Center Frequency to 100.5 kHz.
17. Set the cal factor of the SC7400 to 100.5 kHz.
18. Set the MG3692x to 100.5 kHz, and adjust the output level so the ML2438A reads –40.0 dBm.
19. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-10, “Amplitude Accuracy Verification For Units with Option 402 (Pre Amp On, -50 dBm, 0 dB
Input Attn)” on page A-5.
20. Repeat Step 16 to Step 19 for the other frequencies in Table A-10 on page A-5.
21. Move the power splitter connection from Port 1 to Port 2 on the MS27102A.
22. Enable the Port 2 connection on the MS27102A using the following SCPI Command:
:Route:Input:Close 2
23. Repeat Step 16 to Step 19 for all frequencies in Table A-10 on page A-5.
3-3 Displayed Average Noise Level (DANL), 2-Port Instruments
(Option 402)
The following test is used to verify the Displayed Average Noise Level (DANL) of the 2-port MS27102A
(Option 402).
Equipment Required
•Anritsu SM/PL-1, 50 ohm Termination
Procedure (With Pre Amp Off)
1. Connect the 50 Ohm Termination to Port 1 on the MS27102A.
2. Turn on the MS27102A, Preset the instrument and allow it to warm up for 10 minutes.
3. Set the MS27102A Sweep Mode to FFT.
4. Set the MS27102A Sweep Type to Single.
5. Set the RBW to 100 kHz and the VBW to 1kHz.
6. Set the MS27102A Input Attenuation to 0 dB.
7. Set the MS27102A Detection to RMS.
8. Set the MS27102A Reference Level to –20 dBm.
9. Ensure the Pre Amp is turned Off.
10. Set the Start/Stop Frequency for the first measurement in Table A-11, “MS27102A DANL For Units with
Option 402 with Pre Amp Off (Two Ports)” on page A-5, and Initiate a Single Sweep.
11. Wait until one sweep is completed.
12. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-11 on page A-5.
13. Repeat Step 10 to Step 12 for the remaining frequencies in Table A-11 on page A-5.
14. Move the 50 ohm Termination from Port 1 to Port 2.

3-3 Displayed Average Noise Level (DANL), 2-Port Instruments (Option 402) MS27102A Option Verification
3-4 PN: 10580-00420 Rev. A MS27102A MM
15. Change the RF In port to port 2 using the following SCPI Command:
:Route:Input:Close 2
16. Repeat Step 10 to Step 12 for the frequencies in Table A-11 on page A-5.
17. For each measured 100 kHz RBW value in the test record, convert it to the normalized 1 Hz RBW value
by subtracting 50 dB.
For example, if the marker shows a value of –100 dBm at 100 kHz RBW, the calculated value at 1 Hz
RBW is –150 dBm.
–100 dBm – 50 dB = –150 dBm
18. Enter the calculated values in the test records using the “Calculated for 1 Hz RBW” column of Table A-11
on page A-5. Use the calculated values when comparing to the specification.
Procedure (With Pre Amp On)
1. Connect the 50 ohm Termination to Port 1 on the MS27102A.
2. Turn on the MS27102A. Preset the instrument and allow it to warm up for 10 minutes.
3. Set the MS27102A Sweep Mode to FFT.
4. Set the MS27102A Sweep Type to Single.
5. Set the RBW to 100 kHz and the VBW to 1kHz.
6. Set the MS27102A Input Attenuation to 0 dB.
7. Set the MS27102A Detection to RMS.
8. Set the MS27102A Reference Level to –20 dBm.
9. Set the MS27102A Pre Amp On by checking the box next to the Pre Amp setting.
10. Set the Start/Stop Frequency for the first measurement in Table A-12, “MS27102A DANL For Units with
Option 402 with Pre Amp On (Two Ports)” on page A-5, and Initiate a Single Sweep.
11. Wait until one sweep is completed.
12. On the MS27102A, use the SCPI command, :FETCH:PEAK?, to return the peak value and record in
Table A-12 on page A-5.
13. Repeat Step 10 to Step 12 for the remaining frequencies in Table A-12 on page A-5.
14. Move the 50 ohm Termination from Port 1 to Port 2.
15. Change the RF In port to port 2 using the following SCPI Command:
:Route:Input:Close 2
16. Repeat Step 10 to Step 12 for the frequencies in Table A-12 on page A-5.
17. For each measured 100 kHz RBW value in the test record, convert it to the normalized 1 Hz RBW value
by subtracting 50 dB.
For example, if the marker shows a value of –100 dBm at 100 kHz RBW, the calculated value at 1 Hz
RBW is –150 dBm.
–100 dBm – 50 dB = –150 dBm
18. Enter the calculated values in the test records using the “Calculated for 1 Hz RBW” column of Table A-12
on page A-5. Use the calculated values when comparing to the specification.