Anritsu ShockLine MS46121A Series User manual

User Guide
ShockLine™
MS46121A/B Series
Compact Vector Network Analyzer
MS46121A/B-004 VNA, 40 MHz to 4 GHz, 1–Port
MS46121A/B-006 VNA, 150 kHz to 6 GHz, 1–Port
Цены и срок поставки уточняйте на сайте www.2test.ru, по телефону: + 7 495 215-57-17 или [email protected]

Front-2 PN: 10410-00344 Rev. F MS46121A/B UG

MS46121A UG PN: 10410-00344 Rev: F Contents-1
Chapter Descriptions
Chapter 1 — Overview
This chapter provides an overview of the ShockLine MS46121A/B Series Vector Network Analyzer (VNA)
and a description of its major functions and available documentation. A summary of available precision
component kits including mechanical calibration kits and verification kits is included.
Chapter 2 — Installation
This section provides information for the initial inspection and preparation for use of the ShockLine
MS46121A/B Series VNA and includes information on instrument installation, loading ShockLine
Software, and initial inspection.
Chapter 3 — Calibration
This chapter provides information for the manual and applicable automatic calibration of the MS46121A/
B VNA. The calibrations will include both 1-port OSL calibration as well as scalar transmission
calibration. A 1-port measurement setup and a scalar transmission measurement setup will be provided
for the MS46121A/B series 1 Port VNA.
Chapter 4 — Troubleshooting
This section provides basic troubleshooting methods if the MS46121A/B is not connecting properly. The
software should automatically detect and install drivers when the MS46121A/B is plugged into the
computer.
Appendix A — Maintenance and Security
The MS46121A/B is a secure device and can be moved in and out of the secure facilities as there are no
user accessible locations on the MS46121A/B.

Contents-2 PN: 10410-00344 Rev: F MS46121A UG
Chapter Descriptions (Continued)

MS46121A UG PN: 10410-00344 Rev: F Contents-3
Table of Contents
Chapter 1 — Overview
1-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Recommended External PC Configuration and Operating System . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 ShockLine MS46121A/B Series VNA Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-4 ShockLine MS46121A/B Series VNA Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-5 ShockLine MS46121A/B VNA Instrument Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
The MS46121A/B Series VNA is controlled via . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Graphical User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-6 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-7 Calibration and Verification Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Precision Component and Calibration Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Mechanical Calibration Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-8 User Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Product Information, Compliance, and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
ShockLine Vector Network Analyzers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-9 Documentation Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Instrument Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
User Interface, Menus, and Soft Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
User Interface Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
User Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Chapter 2 — Installation
2-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Preparation for Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Installing ShockLine Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Connecting the External Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Running ShockLine Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-4 Automation Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Communication Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Navigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
SCPI Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
IVI Installation and usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-5 Operating Environment and Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
USB Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-6 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Contents-4 PN: 10410-00344 Rev: F MS46121A UG
Table of Contents (Continued)
Chapter 3 — Calibration
3-1 Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Standards Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1-Port S11 Manual Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Making a 1-Port Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Setting up the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-3 Scalar Thru Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-4 Reflection Scalar Thru Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-5 Multi-Channel Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Definition of Dialog Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
NumOfChans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Multi-Channel Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Chapter 4 — Troubleshooting
4-1 Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Installation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Appendix A — Maintenance and Security
A-1 Security and Memory Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A-2 Preparation for Storage or Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Preparation for Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Preparation for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Index

MS46121A/B UG PN: 10410-00344 Rev. F 1-1
Chapter 1 — Overview
1-1 Introduction
This chapter provides an overview of the ShockLine MS46121A/B Series Vector Network Analyzer (VNA) and a
description of its major functions and available documentation. A summary of available precision component
kits including mechanical calibration kits and verification kits is included.
1-2 Recommended External PC Configuration and Operating System
The MS46121A/B is a 1-Port Compact USB VNA that is controlled from an external PC running ShockLine
software. The recommended external PC configuration and operating system is listed in Table 1-1.
1-3 ShockLine MS46121A/B Series VNA Description
The ShockLine MS46121A/B Series VNA is an instrument system that contains a built-in source, test set for
signal separation, and analyzer. The MS46121A/B is a 1-Port Compact USB VNA that is controlled from an
external pc running ShockLine software. Designed for simple engineering, manufacturing, and educational
applications, the MS46121A/B series VNA supports manual test programming through the same Graphical
User Interface (GUI) available on all the ShockLine family VNAs. Test results can be displayed real time on an
external pc. Screen captures can easily be printed or saved in common graphic file formats.
The ShockLine MS46121A/B Series VNA provides a maximum frequency range from 150 kHz to 6 GHz.
ShockLine software can control up to 16 MS46121A/B VNAs simultaneously with each VNA assigned a
separate software channel. Each channel has up to 20001 total test points available and up to 16 trace display
graphs. Each trace can have up to 12 standard markers and one reference marker.
Table 1-1. Recommended External PC Configuration
Equipment Description
Operating System Windows 7, 8, or 10: 64 bit
CPU 3 GHz
RAM 4 GB
Disk 120 GB
Graphics 3D Hardware Accelerated Graphics Capability
Figure 1-1. 1-Port USB MS46121A/B ShockLine VNA with USB cable attached.

1-4 ShockLine MS46121A/B Series VNA Models Overview
1-2 PN: 10410-00344 Rev. F MS46121A/B UG
1-4 ShockLine MS46121A/B Series VNA Models
The ShockLine VNA is available in two frequency models as shown in Table 1-2.
Options
1-5 ShockLine MS46121A/B VNA Instrument Control
Other than test and I/O connectors, there are no user controls on the VNA. The ShockLine MS46121A/B Series
VNA is controlled and operated by an external PC controller loaded with ShockLine Software.
The MS46121A/B Series VNA is controlled via
•An external computer, with monitor or touchscreen, keyboard and mouse
•ShockLine Software
•USB A to a Micro-B Connector
Graphical User Interface
The graphical user interface (GUI) provides a combination of a menu command bar, icon task bar, and right-
side navigation menu for most system functions. All of the on-screen navigation elements can be accessed on
the user supplied computer.
Table 1-2. ShockLine MS46121A/B Series VNA Models
VNA Model
Number Name Specifications Test Port Connectors
MS46121A/B-004 USB 1-Port Vector Network Analyzer 40 MHz – 4 GHz N(m) Connector Test Port
MS46121A/B-006 USB 1-Port Vector Network Analyzer 150 kHz – 6 GHz N(m) Connector Test Port
Option Descriptions
MS46121A/B-002 Low Pass Time Domain
MS46121A/B-021 Scalar Transmission Measurement

Overview 1-6 Accessories
MS46121A/B UG PN: 10410-00344 Rev. F 1-3
1-6 Accessories
1-7 Calibration and Verification Kits
Precision Component and Calibration Kits
Precision-component calibration kits are available. Calibration kits contain components used to identify and
separate error sources inherent in microwave test setups. Certain kits contain a USB memory device that
provides coefficient, characterization, or measurement data for each component. Refer to the instrument data
sheet for detailed specifications on automatic calibrators and mechanical calibration.
Mechanical Calibration Kits
The mechanical calibration kits provide 50 ohm calibrations for N devices.
1-8 User Documentation
Product Information, Compliance, and Safety
•ShockLine™ Vector Network Analyzers, SmartCal™ and Site Master™ Cable and Antenna Analyzers
– 10100-00067
ShockLine Vector Network Analyzers
•ShockLine MS46121A/B Series VNA ShockLine Technical Data Sheet - 11410-00839
•ShockLine MS46121A/B, MS46122A/B, MS46322A/B Series Vector Network Analyzers
User Interface Reference Manual – 10410-00337
•ShockLine™ MS46121A/B, /MS46122A/B, /MS46322A/B Series Vector Network Analyzers
Programming Manual – 10410-00338
•ShockLine MS46121A Maintenance Manual – 10410-00757
1-9 Documentation Conventions
The following conventions are used throughout the entire MS46121A/B Series VNA documentation set:
•ShockLine VNA refers to any ShockLine VNA module or system.
•VNA refers to any ShockLine VNA module.
•MS46121A/B Series VNA refers to any of the VNAs in the MS46121A/B family.
•When required to identify a specific VNA model, the specific model number is used, such as
MS46121A/B-004 (refers to the 4.0 GHz model).
Accessory Part Number
External PC with Windows 7, Windows 8, or Windows 10 Not Included
USB cable with a USB A to Mini-B Connector 3-2000-1498
Flier with instructions on where to download software and documentation
Note Many of the images in this document are used as typical representations of the product or of the
product features. Your instrument and instrument displays may vary slightly from these images.

1-9 Documentation Conventions Overview
1-4 PN: 10410-00344 Rev. F MS46121A/B UG
Instrument Connectors
Panel connectors are denoted with a bold Sans Serif font such as 10 MHZ IN.
User Interface, Menus, and Soft Buttons
The ShockLine MS46121A/B Series VNA user interface consists of menus, button lists, sub-menus, toolbars,
and dialog boxes. All of these elements are denoted with a special font. Generally, the top level menu items are
denoted with a bold Sans Serif font and the subordinate items are denoted with a regular Sans Serif font, such
as Frequency menu button.
User Interface Navigation
Elements in navigation shortcuts or paths are separated with the pipe symbol (“|”). Menu and dialog box
names are distinctive Sans Serif font in CAPITALS. Button names are in Title Case. For example, the path to
the Manual Cal menu is:
•MAIN | Calibration | CALIBRATION | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL
User Input
User input such as entering values or other information is denoted in a mono-spaced font such as:
This font denotes a string of user input.

MS46121A/B UG PN: 10410-00344 Rev. F 2-1
Chapter 2 — Installation
2-1 Introduction
This section provides information for the initial inspection and preparation for use of the ShockLine
MS46121A/B Series VNA and includes information on instrument installation, loading ShockLine Software,
and initial inspection.
Initial Inspection
Inspect the shipping container for damage. If the container or cushioning material is damaged, retain until the
contents of the shipment have been checked against the packing list and the instrument has been checked for
mechanical and electrical operation. If the ShockLine MS46121A/B Series VNA is physically damaged, notify
your local sales representative or Anritsu Customer Service. If either the shipping container is damaged or the
cushioning material shows signs of stress, notify the carrier as well as Anritsu. Keep the shipping materials for
the carrier’s inspection.
Preparation for Use
The ShockLine MS46121A/B Series software requires installation. To interface with the instrument through
direct manual control, the following is required:
•PC with Windows 7, Windows 8, Windows 8.1, or Windows 10
•Keyboard
•Mouse
•ShockLine Software V 1.1.05 or later
•USB A/micro-B latch cable
2-2 Installing ShockLine Software
After unpacking, the ShockLine MS46121A/B 1-Port VNA is ready for use. The MS46121A/B requires an
external PC to operate.
Connecting the External Computer
The External PC is the controller for the MS46121A/B 1-Port VNA. In order to enable the ShockLine VNA
application to control the MS46121A/B, connect a USB A to Micro-B cable between the VNA and the external
computer pre-loaded with the ShockLine Software.
Note An external computer with Windows 7, Windows 8, Windows 8.1, or Windows 10 Operating
System is required to load the ShockLine software.

2-3 Running ShockLine Software Installation
2-2 PN: 10410-00344 Rev. F MS46121A/B UG
Procedure
•Power up the external PC.
•Run the ShockLine software installer as Administrator and follow the instructions displayed on the
monitor to complete the installation of the software into the PC.
The VNA controller and the MS46121A/B communicates with SCPI or IVI-C. The two communication
interfaces are listed below.
To use SCPI, TCP/IP protocol will be used with SOCKETS. The user will have to download a development
tool to setup the socket and there are many open source development tools for this purpose. Sockets will
run SCPI with or without NI VISA.
2-3 Running ShockLine Software
The MS46121A/B series VNA relies on the External PC to perform SCPI or IVI-C programming and
interfacing. There are two ways that the MS46121A/B can be controlled, locally through the Graphical User
Interface (GUI) or remotely, via USB controlled SCPI or IVI-C.
To interface the VNA, connect the single port MS46121A/B to the External PC. Refer to Figure 2-1.
The ShockLine software communicates with the VNA hardware through an Anritsu USB driver.
•There is no external power supply. The MS46121A/B is powered via USB. Power up the device by
connecting the USB A connector of the cable to the computer and the Micro-USB connector to the
MS46121A/B.
•Double click the ShockLine desktop icon to launch the ShockLine software to use the MS46121A/B.
Note The user must run the installer as Administrator to properly install the ShockLine software
Figure 2-1. MS46121A/B Connected to PC Controller

Installation 2-4 Automation Interface
MS46121A/B UG PN: 10410-00344 Rev. F 2-3
2-4 Automation Interface
This section describes the setup for automation interface to the MS46121A/B.
Communication Setup
The MS46121A/B configuration accepts one to sixteen 1-Port VNAs to be connected at a time to the ShockLine
software application. The ShockLine software will set up the channels depending on the number of
MS46121A/Bs that are plugged in. The software will show an even number of displays. If an odd number of
single port VNAs are connected, one channel will be display as unused. Figure 2-2.
Once the MS46121A/B has been connected and initialized, setup the automation interface to the instrument.
Navigation
To access the IP address and TCP port number, select:
•Utilities | SYSTEM | Network Interface
SCPI Usage
The IP address and TCP port number will be used for SCPI to declare the instruments address for
communication.
Figure 2-2. Display with Multiple 1–Ports
Note Launch ShockLine GUI to enable SCPI communication. GUI menus will turn gray and the GUI
interface will be locked out when remote communications are active.

2-5 Operating Environment and Power Requirements Installation
2-4 PN: 10410-00344 Rev. F MS46121A/B UG
IVI Installation and usage
If the user is working with IVI-C, there are some necessary steps to get started with remote programming. The
IVI-C drivers come standard in the ShockLine software package.
2-5 Operating Environment and Power Requirements
USB Requirements
The ShockLine MS46121A/B Series VNA can be operated within the following environmental limits: The
MS46121A/B requires USB 2.0. When using more than two MS46121A/B VNAs, an externally powered USB
powered Hub is recommended.
2-6 Getting Started
The following simple step by step procedure will setup the MS46121A/B for use with ShockLine software.
1. Plug in the MS46121A/B VNA/s into the computer that will control them via individual USB ports or an
externally powered USB hub. Launching the ShockLine software without plugging in the VNAs first will
result in the software asking the user if they want to run in simulation mode. See Figure 2-3.
Note Remote communication is successful once the IVI-C sends commands and the ShockLine GUI exits.
Unlike SCPI, the ShockLine GUI does not run while IVI-C is in use.
Table 2-1. Operational Environmental and Power Requirements
Parameter Specification
Environmental Requirements (per MIL-PRF-28800F; class 4)
Operating Temperature Range: 0 to +40 degrees Celsius
Relative Humidity: 5 % to 95 % at +45 degrees Celsius, non-condensing
Figure 2-3. No Hardware Prompt

Installation 2-6 Getting Started
MS46121A/B UG PN: 10410-00344 Rev. F 2-5
2. After the MS46121A/B has been plugged into the computer, the status indicator light will be orange. Do
not issue commands remotely or through the GUI while the indicator light is orange. The light turns
green in approximately 10-15 seconds and the VNA is ready for use.
3. Open the ShockLine software.
4. The ShockLine software will come up with the serial number of the MS46121A/B displayed in the
channel label. See Figure 2-5.
5. Each MS46121A/B will have a dedicated channel and the respective serial number will be labeled to
make keeping track of each VNA easier.
6. In the unusual circumstance a new VNA is added and there is no response on the channel, before
unplugging and re-plugging, the following steps are suggested:
•Navigate
•SWEEP | Hold Functions | Hold
•Upon this menu, press the Hold button and wait 5 seconds
•Press Sweep button
7. Check to see if VNA is sweeping. If not, try un-plugging and re-plugging the VNA.
Figure 2-4. 1-Port VNA indicator light
Figure 2-5. 1-Port VNA with serial number labeled on trace

2-6 Getting Started Installation
2-6 PN: 10410-00344 Rev. F MS46121A/B UG
8. If a VNA is removed, the channel of the removed VNA will stay on the ShockLine software and the other
channels will not re-arrange or shift. If all VNAs are removed, the ShockLine software will shut down.
Prior to exiting, the software will ask the user if the setup should be saved. See Figure 2-6 I
Figure 2-6. ShockLine warning when a MS46121A/B is removed from the port

MS46121A/B UG PN: 10410-00344 Rev. F 3-1
Chapter 3 — Calibration
3-1 Chapter Overview
This chapter provides information for the manual and applicable automatic calibration of the MS46121A/B
VNA. The calibrations will include both 1-port OSL calibration as well as scalar transmission calibration. A 1-
port measurement setup and a scalar transmission measurement setup will be provided for the MS46121A/B
series 1 Port VNA.
Standards Calibration
Before starting the calibration of the MS46121A/B for S11, the user must have the Open, Short and Load
(OSL) standards to perform the calibration. The standards must be characterized and their respective
coefficients loaded into the ShockLine software. If the user has an Anritsu calibration tee, loading or creating
cal kit coefficients will not be necessary. Some older Anritsu OSL calibration kits may need to have their
coefficients loaded into the software.
Before starting the scalar transmission between two or more MS46121A/Bs, the user must have a Thru that
connects between each MS46121A/B. Scalar transmission does not require an electrical length for the Thru as
phase information is not shared between MS46121A/Bs.
1-Port S11 Manual Calibration
To calibrate the 1-Port VNA manually, refer to Figure 3-1.
Calibration | Calibrate | Manual Cal | 1 Reflection Only | Port Reflective Devices
Figure 3-1. Reflection Calibration
Note The default calibration standard is TOSLNF50A

3-2 Making a 1-Port Measurement Calibration
3-2 PN: 10410-00344 Rev. F MS46121A/B UG
The user will choose Port 1 Reflective Devices and connect all three standards (Short, Open and Load) in any
order until calibration is complete. The last thing to do is select the “Done” button after the prompt. This will
complete the calibration and accurate S11 measurements can now be done.
3-2 Making a 1-Port Measurement
This section describes how the user can make a simple one port measurement. There are many types of trace
displays to choose from including log mag, linear mag, real and complex impedance, phase and magnitude. The
basic measurement will be outlined and can be changed, with minimal effort, to make all types of S11
measurements.
Setting up the Instrument
The MS46121A/B is a 1-Port Vector Network Analyzer, so the MS46121A/B must be calibrated using the Open,
Short and Load for accurate measurements. The default for the MS46121A/B is a single screen with a log
magnitude display.
Navigation
One channel in the software is assigned to each of the four MS46121A/B VNAs. See Figure 3-2.
Channel | CHANNEL | # of Channels | 4
Note The default setting for the calibration kit is TOSLNF50A
Note Each S11 parameter for the various MS46121A/Bs will have the reflection parameter match the
channel position. For example, S11 for an MS46121A/B on channel 3 will be called S33.
Figure 3-2. 4 Channel View

Calibration 3-3 Scalar Thru Only
MS46121A/B UG PN: 10410-00344 Rev. F 3-3
3-3 Scalar Thru Only
To perform scalar transmission measurements, two or more MS46121A/Bs must have the Option 21 license.
Response | XY, where X is the receiver and Y is the source. Scalar Thru can be used for (1 to 1) or (1 to n)
configuration. See Figure 3-3
This section describes how the user can make both reflection and transmission measurements between
MS46121A/Bs. The calibration sequence is multi-step as there two calibration methods that are used to get
both measurement capabilities.
The user can proceed with the Scalar Thru Only calibration when the desired configuration has been
determined. To perform a scalar transmission thru calibration, the user must follow the below navigation to
appropriately select the assigned source and receiver parameters:
Navigation
Main Menu | Calibration | CALIBRATION [TR] | Calibrate | CALIBRATE | Manual Cal | MANUAL CAL
|Scalar Thru Only | SCALAR THRU ONLY | Modify Cal Setup | CAL SETUP | Edit Cal params.
Note IFBW default is 10 kHz. This value can be lowered with a 10 MHz external reference to 1 kHz.
Figure 3-3. MS46121A/B with option 21 configurations

3-3 Scalar Thru Only Calibration
3-4 PN: 10410-00344 Rev. F MS46121A/B UG
The Edit Cal params must be performed before calibration so that the source and number of receivers can be
declared. The source will automatically be declared depending on the software channel being used. For
example, in Figure 3-4, the source is on Port 1 (channel 1) and the receivers are on ports 2 and 3.
Figure 3-4. Edit Cal Params menu with declared receivers on ports 2 and 3