Anritsu 37 C Series User manual

MODEL
37XXXC
VECTOR NETWORK ANALYZER
OPERATION MANUAL
490 JARVIS DRIVE ·MORGAN HILL, CA 95037-2809 P/N: 10410-00226
REVISION: B
PRINTED: DECEMBER 2001
COPYRIGHT 2000 ANRITSU CO.
NOTICE
This manual and the 37XXXC Programming Manual,
along with other product literature, are provided on a
CD ROM (PN: 10920-00031) that is located in the in-
side-front cover pocket.

WARRANTY
The ANRITSU product(s) listed on the title page is (are) warranted against defects in materials and
workmanship for three years from the date of shipment.
ANRITSU’s obligation covers repairing or replacing products which prove to be defective during the
warranty period. Buyers shall prepay transportation charges for equipment returned to ANRITSU for
warranty repairs. Obligation is limited to the original purchaser. ANRITSU is not liable for consequential
damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to ANRITSU connectors that have failed due to normal wear. Also,
the warranty does not apply to defects resulting from improper or inadequate maintenance by the Buyer,
unauthorized modification or misuse, or operation outside of the environmental specifications of the
product. No other warranty is expressed or implied, and the remedies provided herein are the Buyer’s sole
and exclusive remedies.
TRADEMARK ACKNOWLEDGEMENTS
V Connector and K Connector are registered trademarks of ANRITSU Company.
GPC-7 is a registered trademark of Amphenol Corporation.
ANACAT is a registered trademark of EEsof, Inc.
Ink Jet and Think Jet are registered trademarks of Hewlett-Packard Co.
MS-DOS is a registered trademark of Microsoft 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.

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
DANGER This indicates a very dangerous procedure that could result in serious
injury or death if not performed properly.
WARNING This indicates a hazardous procedure that could result in serious in-
jury or death if not performed properly.
CAUTION This indicates a hazardous procedure or danger that could result in
light-to-severe injury, or loss related to equipment malfunction, if
proper precautions are not taken.
Safety Symbols Used on Equipment and in Manuals
(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.)
The following safety symbols are used inside or on the equipment near operation locations to provide infor-
mation 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.
This indicates a prohibited operation. The prohibited operation is indi-
cated symbolically in or near the barred circle.
his indicates a compulsory safety precaution. The required operation is
indicated symbolically in or near the circle.
This indicates warning or caution. The contents are indicated symboli-
cally 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.
37XXXC OM Safety-1

Safety-2 37XXXC OM
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 perfor-
mance may be reduced.
Moreover, this alert mark is sometimes used with other marks and de-
scriptions 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 a grounded 3-pin outlet
is not available, use a conversion adapter and ground the green wire, or
connect the frame ground on the rear panel of the equipment to ground.
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.
WARNING
Repair
For Safety
Use two or more people to lift and move this equipment, or use an
equipment cart. There is a risk of back injury, if this equipment is lifted
by one person.
WARNING

Table Of Contents
Chapter 1 — General Information
This chapter provides a general description of the ANRITSU Model 37XXXC Vector Network Ana-
lyzer System and its major units: network analyzer, test set, and frequency source. It also provides
descriptions for the precision component kits, and equipment options. Additionally, it contains the
listing of recommended test equipment.
Chapter 2 — Installation
This chapter provides instructions for performing an initial inspection, preparing the equipment for
use; setting up for operation over the IEEE-488.2 (GPIB) Bus, using a printer; and preparing the
units for storage and/or shipment. It also provides a listing of ANRITSU Customer Service Centers.
Chapter 3 — Network Analyzers, A Primer
This chapter provides an introduction to network analysis and the types of measurements that can
be made using them. It provides general and introductory description.
Chapter 4 — Front Panel Operation
This chapter describes the front panel controls and provides flow diagrams for the menus called up
using the front panel controls. It contains the following subchapters:
·Front Panel Control-Group Descriptions
·Calibration Keys and Indicators, Detailed Description
·Save/Recall Menu Key and Menus, Key Description and Menu Flow
·Measurement Keys and Menus, Key Descriptions and Menu Flow
·Channel Keys and Menu, Key Descriptions and Menu Flow
·Display Keys and Menus, Key Descriptions and Menu Flow
·Enhancement Keys and Menus, Key Descriptions and Menu Flow
·Hard Copy Keys and Menus, Key Descriptions and Menu Flow
·System State Keys and Menus, Key Descriptions and Menu Flow
·Markers/limits Keys and Menus, Key Descriptions and Menu Flow
·Disk Storage Interface, Detailed Description
Chapter 5 — Error And Status Messages
This chapter describes the type of error messages you may encounter during operation and provides a
tabular listing. This listing describes and defines the error types.
Chapter 6 — Data Displays
This chapter provides a detailed description of the various data displays. It describes the graph
types, frequency markers, measurement limit lines, status displays, and data display controls.
37XXXC OM i

Chapter 7 — Measurement Calibration
This chapter provides a discussion and tutorial on measurement calibration. It contains step-by-step
calibration procedures for the Standard (OSL), Offset-Short, TRM, and LRL/LRM methods. It also
has a procedure for calibrating using a sliding termination.
Chapter 8 — Measurements
This chapter discusses measurements with the 37XXXC VNA. It contains subchapters that provide a
detailed descriptions for Transmission and Reflection, Low Level and Gain, Group Delay, Active De-
vice, Multiple Source Control, Adapter Removal, Gain Compression, and Receiver Mode
measurements
Chapter 9 — Time Domain
This chapter describes the Option 2, Time Domain feature. It provides an operational procedure and
a flowchart of the time domain menus.
Chapter 10 — AutoCal
This chapter describes the Automatic Calibrator (AutoCal) feature and provides operational informa-
tion and procedures.
Chapter 11 — Operational Checkout Procedures, 371XXC
This chapter provides a procedure for operational checkout.
Chapter 12 — Operational Checkout Procedures; 372XXC, 373XXC
This chapter provides a procedure for operational checkout
Chapter 13 — Calibration Kits
This chapter provides a description and listing of components for the calibration kits.
Chapter 14 — Millimeter Wave System
This chapter contains description, operation, and checkout procedures for the millimeter wave mea-
surement capability that can be added to the 371XXC Vector Network Analyzer.
Chapter 15 — ME7808A Broadband Measurement System
This chapter contains description, operation, and checkout procedures for the optional broadband
measurement capability that can be added to the 37XXXC Vector Network Analyzer.
Appendix A — Front Panel Menus, Alphabetical Listing
This appendix shows all of the menus that are called up using the front panel controls. It provides a
replica of the menu and descriptive text for all of the various menu choices. The listing is alphabeti-
cal by the menu call letters mentioned and/or illustrated in Chapter 4.
Appendix B — Model 37XXXC VNA Rear Panel Connectors
This appendix describes the rear panel connectors. It also provides pinout listing.
Appendix C — Performance Specifications
This appendix contains the Technical Data Sheet, part number 11410-00247, which provides perfor-
mance specifications.
Index
ii 37XXXC OM

Table of Contents
Chapter 1 General Information ·····················1-1
1-1 SCOPE OF MANUAL ...........................1-3
1-2 INTRODUCTION .............................1-3
1-3 IDENTIFICATION NUMBER .......................1-3
1-4 ONLINE MANUALS............................1-3
1-5 SYSTEM DESCRIPTION .........................1-3
371XXC ...................................1-3
372XXC ...................................1-4
373XXC ...................................1-4
1-6 MILLIMETER WAVE MEASUREMENTS ................1-5
1-7 PRECISION COMPONENT KITS.....................1-5
Model 3650 SMA/3.5 mm Calibration Kit .................1-5
Model 3651 GPC–7 Calibration Kit ....................1-6
Model 3652 K Connector Calibration Kit.................1-7
Model 3653 Type N Calibration Kit ....................1-8
Model 3654B V Connector® Calibration Kit...............1-10
Model 3666 3.5 m Verification Kit ....................1-10
Model 3667 GPC–7 Verification Kit ...................1-11
Model 3668 K Connector®Verification Kit ...............1-12
Model 3669/3669B V Connector®Verification Kits ...........1-13
1-8 OPTIONS .................................1-14
1-9 PERFORMANCE SPECIFICATIONS ..................1-14
1-10 PREVENTIVE MAINTENANCE.....................1-14
Chapter 2 Installation ··························2-1
2-1 INTRODUCTION .............................2-3
2-2 INITIAL INSPECTION ..........................2-3
2-3 PREPARATION FOR USE.........................2-3
2-4 GPIB SETUP ................................2-4
Interface Connector ............................2-4
37XXXC OM iii

Cable Length Restrictions .........................2-4
2-5 SYSTEM GPIB INTERCONNECTION ..................2-5
GPIB Interface to an External Plotter...................2-5
GPIB Addresses ..............................2-5
2-6 EXTERNAL MONITOR CONNECTOR ..................2-5
2-7 RACK MOUNT ...............................2-5
2-8 STORAGE AND/OR SHIPMENT .....................2-8
Preparation for Storage ..........................2-8
Preparation for Shipment .........................2-8
2-9 SERVICE CENTERS............................2-8
Chapter 3 Network Analyzers, A Primer ················3-1
3-1 INTRODUCTION .............................3-3
3-2 GENERAL DESCRIPTION ........................3-3
Source Module ...............................3-4
Test Set Module...............................3-4
Analyzer Module ..............................3-4
3-3 NETWORK ANALYZERS .........................3-5
Chapter 4 Front Panel Operation ····················4-1
4-1 INTRODUCTION .............................4-3
4-2 KEY-GROUPS ...............................4-3
4-3 CALIBRATION KEY-GROUP ......................4-10
4-4 SAVE/RECALL MENU KEY .......................4-21
4-5 MEASUREMENT KEY-GROUP .....................4-22
4-6 CHANNELS KEY-GROUP ........................4-25
4-7 DISPLAY KEY-GROUP..........................4-26
4-8 ENHANCEMENT KEY-GROUP .....................4-30
4-9 HARD COPY KEY-GROUP........................4-32
4-10 SYSTEM STATE KEY-GROUP......................4-34
4-11 MARKERS/LIMITS KEY-GROUP ....................4-37
4-12 DISK STORAGE INTERFACE .....................4-41
Disk Format ...............................4-41
Disk Files .................................4-41
Disk File Output Device .........................4-42
iv 37XXXC OM

Formatting a Data File Disk .......................4-42
Copying Data Files From Disk to Disk..................4-42
Recovering From Disk Write/Read Errors ................4-42
4-13 COMMAND LINE.............................4-43
Create Directory .............................4-43
List Directory ...............................4-43
Change Directory ............................4-43
Delete Files ................................4-43
Remove Directory .............................4-44
Copy Files .................................4-44
Conventions ................................4-44
Chapter 5 Error and Status Messages ·················5-1
5-1 INTRODUCTION .............................5-3
5-2 ERROR MESSAGES ............................5-3
Chapter 6 Data Displays ·························6-1
6-1 INTRODUCTION .............................6-3
6-2 DISPLAY MODES AND TYPES......................6-3
Single Channel Display—Ch 1, 2, 3, 4...................6-3
Dual Channel Display —Ch 1 and 3 or Ch 2 and 4 ............6-4
Four Channel Display—Ch 1, 2, 3, 4 ...................6-5
Dual Trace Overlay.............................6-6
Graph Data Types .............................6-7
6-3 FREQUENCY MARKERS ........................6-11
Marker Designation............................6-11
6-4 LIMITS ..................................6-11
6-5 STATUS DISPLAY ............................6-12
Reference Position Marker ........................6-12
Scale Resolution..............................6-12
Frequency Range .............................6-12
Measurement Status ...........................6-13
Sweep Indicator Marker .........................6-13
6-6 DATA DISPLAY CONTROL .......................6-13
S-Parameter Selection ..........................6-14
37XXXC OM v

Data Display Update ...........................6-14
Display of Markers ............................6-14
6-7 HARD COPY AND DISK OUTPUT ...................6-15
Tabular Printout .............................6-15
Screen-Image Printout ..........................6-15
Plotter Output...............................6-15
Disk Output ................................6-15
Chapter 7 Measurement Calibration ··················7-1
7-1 INTRODUCTION .............................7-3
7-2 DISCUSSION ...............................7-3
Establishing the Test Ports ........................7-3
Understanding the Calibration System ..................7-5
Calibrating for a Measurement ......................7-9
Evaluating the Calibration ........................7-11
Verification Kits ..............................7-11
7-3 SLIDING TERMINATION ........................7-13
7-4 STANDARD (OSL) CALIBRATION ...................7-19
Calibration Procedure...........................7-19
7-5 OFFSET-SHORT CALIBRATION ....................7-28
Calibration Procedure...........................7-28
7-7 LRL/LRM CALIBRATION ........................7-32
7-6 TRM CALIBRATION ...........................7-43
Chapter 8 Measurements ·························8-1
8-1 INTRODUCTION .............................8-3
8-2 TRANSMISSION AND REFLECTION ..................8-3
8-3 LOW LEVEL AND GAIN ........................8-12
8-4 GROUP DELAY .............................8-20
8-5 ACTIVE DEVICE .............................8-24
8-6 MULTIPLE SOURCE CONTROL ....................8-29
Control Formula..............................8-29
8-7 ADAPTER REMOVAL ..........................8-34
8-8 GAIN COMPRESSION ..........................8-39
Power and VNA'S .............................8-39
vi 37XXXC OM

Swept Power Gain Compression.....................8-41
Swept Frequency Gain Compression ..................8-41
8-9 RECEIVER MODE ............................8-58
Source Lock Mode.............................8-58
Tracking Mode...............................8-58
Set-on Mode ................................8-58
Receiver Mode Block Diagram ......................8-59
Receiver Mode Menus...........................8-59
Procedure, Receiver Mode Operation...................8-59
Chapter 9 Time Domain ·························9-1
9-1 INTRODUCTION .............................9-3
9-2 TIME DOMAIN MEASUREMENTS ...................9-3
9-3 OPERATING TIME DOMAIN.......................9-8
9-4 WINDOWING ...............................9-11
9-5 GATING ..................................9-12
9-6 ANTI-GATING ..............................9-14
9-7 EXAMPLES, GATING AND ANTI-GATING ..............9-14
9-8 TIME DOMAIN MENUS .........................9-14
Chapter 10 AutoCal ···························10-1
10-1 INTRODUCTION .............................10-3
10-2 DESCRIPTION ..............................10-3
10-3 CALIBRATIONS .............................10-4
10-4 DEFINITION ...............................10-4
10-5 PHYSICAL SETUP ............................10-6
10-6 CHARACTERIZATION FILES......................10-7
10-7 USING AUTOCAL ............................10-9
10-8 PIN DEPTH SPECIFICATIONS ....................10-13
10-9 AUTOCAL MENUS FLOW DIAGRAM.................10-14
Chapter 11 Operational Checkout Procedures, 371XXC·······11-1
11-1 INTRODUCTION .............................11-3
11-2 REQUIRED EQUIPMENT........................11-3
11-3 INITIAL SETUP .............................11-3
37XXXC OM vii

11-4 SELF TEST ................................11-3
11-5 SAMPLER EFFICIENCY TEST .....................11-4
Test Setup .................................11-5
Test Procedure...............................11-5
11-6 HIGH LEVEL NOISE TEST .......................11-8
Test Procedure...............................11-8
Chapter 12 Operational Checkout Procedures; 372XXC, 373XXC · 12-1
12-1 INTRODUCTION .............................12-3
12-2 REQUIRED EQUIPMENT........................12-3
12-3 INITIAL SETUP .............................12-3
12-4 SELF TEST ................................12-3
12-5 NON-RATIO POWER...........................12-4
Test Procedure...............................12-5
12-6 HIGH LEVEL NOISE TEST .......................12-6
Chapter 13 Calibration Kits ······················13-1
13-1 INTRODUCTION .............................13-3
13-2 PURPOSE .................................13-3
13-3 KIT CONTENTS .............................13-3
Model 3650 Calibration Kit .......................13-4
Model 3651 Calibration Kit .......................13-6
Model 3652 Calibration Kit .......................13-8
Model 3653 Calibration Kit.......................13-10
Model 3654/ 3654B Calibration Kit ..................13-12
13-4 PRECAUTIONS ............................13-14
Pin Depth ................................13-14
Pin Depth Tolerance ...........................13-14
Over Torquing Connectors .......................13-15
Teflon Tuning Washers .........................13-15
Mechanical Shock ............................13-15
13-5 CLEANING INSTRUCTIONS .....................13-16
viii 37XXXC OM

Chapter 14 Millimeter Wave System ·················14-19
14-1 INTRODUCTION .............................14-3
14-2 DESCRIPTION ..............................14-3
14-3 PERFORMANCE SPECIFICATIONS ..................14-3
System Performance ...........................14-3
Test Port Characteristics .........................14-5
Measurement Capabilities ........................14-5
14-4 INSTALLATION .............................14-6
14-5 CONTROLS AND CONNECTORS ...................14-11
14-6 CALIBRATION .............................14-11
14-7 OPERATION ..............................14-13
Entering/ LeavingMillimeter Wave Operation .............14-13
Changing Bands/Modules While in Millimeter Wave .........14-17
Allowable Millimeter Wave Module Configurations,
Measurements and Calibrations ....................14-17
Effect of Default Program ........................14-17
Redefinition of Band Frequency Ranges ................14-19
Use of Normal Multiple Source Mode..................14-20
Stored Setups and Calibrations.....................14-20
External Source and Power Levels ...................14-21
14-8 MEASUREMENT PROCEDURE ....................14-22
14-9 REMOTE OPERATION .........................14-23
14-10 OPERATIONAL CHECKOUT-GENERAL ..............14-24
14-11 OPERATION CHECKOUT–IF POWER LEVEL TEST ........14-25
14-12 OPERATIONAL CHECKOUT–
TRANSMISSION HIGH LEVEL NOISE TEST ............14-27
14-13 OPERATIONAL CHECKOUT–
REFLECTION HIGH LEVEL NOISE TEST..............14-29
Chapter 15 ME7808A Broadband Measurement System·······15-1
15-1 INTRODUCTION ............................15-3
15-2 SYSTEM DESCRIPTION ..........................15-3
Measurement Instruments ..........................15-3
Console and Associated Hardware .........................15-3
Cables....................................15-3
37XXXC OM ix

15-3 INSTALLATION .............................15-4
Console and Table Setup .........................15-4
Instrument Installation into Console ..................15-5
System Cabling ..............................15-8
15-4 INITIAL ELECTRICAL TESTS .....................15-8
Millimeter Module Checkout .......................15-8
40 MHz to 65 GHz Checkout .........................15-11
15-5 WAFER PROBE STATION .......................15-12
15-6 BROADBAND MENUS, FLOW.....................15-14
Appendix A Front Panel Menus ·····················A-1
Appendix B Rear Panel Connectors ··················B-1
Appendix C Performance Specifications················C-1
Index ·························Index-1
x 37XXXC OM

Table of Contents
1-1 SCOPE OF MANUAL ...........................1-3
1-2 INTRODUCTION .............................1-3
1-3 IDENTIFICATION NUMBER .......................1-3
1-4 ONLINE MANUALS............................1-3
1-5 SYSTEM DESCRIPTION .........................1-3
371XXC ...................................1-3
372XXC ...................................1-4
373XXC ...................................1-4
1-6 MILLIMETER WAVE MEASUREMENTS ................1-5
1-7 PRECISION COMPONENT KITS.....................1-5
Model 3650 SMA/3.5 mm Calibration Kit .................1-5
Model 3651 GPC–7 Calibration Kit ....................1-6
Model 3652 K Connector Calibration Kit.................1-7
Model 3653 Type N Calibration Kit ....................1-8
Model 3654B V Connector® Calibration Kit...............1-10
Model 3666 3.5 m Verification Kit ....................1-10
Model 3667 GPC–7 Verification Kit ...................1-11
Model 3668 K Connector®Verification Kit ...............1-12
Model 3669/3669B V Connector®Verification Kits ...........1-13
1-8 OPTIONS .................................1-14
1-9 PERFORMANCE SPECIFICATIONS ..................1-14
1-10 PREVENTIVE MAINTENANCE.....................1-14
Chapter 1
General Information

Figure 1-1. Model 37XXXC Vector Network Analyzer System

Chapter 1
General Information
1-1 SCOPE OF MANUAL This manual provides general information, installation, and operating
information for the Model 37XXXC Vector Network Analyzer (VNA)
system. (Throughout this manual, the terms VNA, 37XXXC VNA, and
37XXXC will be used interchangeably to refer to the system.) It also
provides description and instructions for the Millimeter Wave System
that can be added to the 371XXC. Manual organization is shown in the
table of contents.
1-2 INTRODUCTION This section provides general information about the 37XXXC VNA sys-
tem and one or more precision-component calibration or performance
verification kits. The section also provides a listing of recommended
test equipment.
1-3 IDENTIFICATION
NUMBER All ANRITSU instruments are assigned a unique six-digit ID number, such as “940101.” This number is affixed to a decal on the rear panel
of each unit. In any correspondence with ANRITSU Customer Service,
please use this number.
1-4 ONLINE MANUALS This manual is available on CD ROM as an Adobe Acrobat™ (*.pdf)
file. The file can be viewed using Acrobat Reader™, a free program
that is also available on the CD ROM. This file is “linked” such that
the viewer can choose a topic to view from the displayed “bookmark”
list and “jump” to the manual page on which the topic resides. The
text can also be word-searched. CD ROM part numbers are available
on ANRITSU's Internet home page (http://www.anritsu.com). You can
also contact ANRITSU Customer Service for price and availability.
1-5 SYSTEM DESCRIPTION The 37XXXC Network Analyzer (Figure 1-1) is a single-instrument
system that contains a built-in source, test set, and analyzer. It is pro-
duced in three series ¾371XXC, 372XXC, and 373XXC¾described
below. All models provide up to 1601 measurement data points, a
built-in hard-disk drive for storing and recalling front panel setups
and measurement and calibration data. They also provide an
on-screen display of total operational time and dates of system calibra-
tions. They support operation over the IEEE 488.2 General Purpose
Interface Bus (GPIB).
371XXC The 371XXC is a direct-receiver access (DRA) VNA consisting of two
models that cover a range from 22.5 MHz to 40 GHz. It cannot make
37XXXC OM 1-3

S-parameter measurements without the use of an external
reflectometer. See “Important Note” below.
Model Frequency Range
37147C 22.5 MHz to 20.0 GHz
37169C 22.5 MHz to 40.0 GHz
IMPORTANT NOTE
The 37100C Direct Access Receiver cannot make
S-parameter measurements without an external
reflectometer setup. This manual describes calibration and
S-parameter measurements for 372XXC and 373XXC.
Most of these measurements can also be used with
371XXC assuming the user understands the need for an
external reflectometer. ANRITSU offers an optional
reflectometer test set that can be used. This reflectometer
is described and a drawing shown in the Technical Data
Sheet provided as Appendix C in this manual.
372XXC The 372XXC is a fully functioning VNA for making passive-device
measurements. The series offers six models that cover a range from
22.5 MHz to 65 GHz. The models are shown below:
Model Frequency Range
37217C 22.5 MHz to 8.6 GHz
37225C 40.0 MHz to 13.5 GHz
37247C 40.0 MHz to 20.0 GHz
37269C 40.0 MHz to 40.0 GHz
37277C 40.0 MHz to 50.0 GHz
37297C 40.0 MHz to 65.0 GHz
373XXC The 373XXC is a fully functioning VNA for making passive- and ac-
tive-device measurements. The series offers six models that cover a
range from 22.5 MHz to 65 GHz. The models are shown below.
Model Frequency Range
37317C 22.5 MHz to 8.6 GHz
37325C 40.0 MHz to 13.5 GHz
37347C 40.0 MHz to 20.0 GHz
37369C 40.0 MHz to 40.0 GHz
37377C 40.0 MHz to 50.0 GHz
37397C 40.0 MHz to 65.0 GHz
SYSTEM DESCRIPTION GENERAL INFORMATION
1-4 37XXXC OM