YIC Technologies EMScanner User manual

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EMScanner
User Manual
V01/0912

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Disclaimer
Warranty
The material contained in this user manual is provided “as is” and is subject to being changed,
without notice, in future editions. Further to the maximum extent permitted by applicable law,
YIC Technologies disclaims all warranties, either expressed or implied, regarding this user
manual and any information contained herein, including but not limited to the implied
warranties of merchantability and fitness for a particular purpose. YIC Technologies shall not
be liable for errors or for incidental or consequential damages in connection with the furnishing,
use, or performance of this document or any information contained herein. Should YIC
Technologies and the user have a separate written agreement with warranty terms covering
the material in this document that conflict with these terms, the warranty terms in the separate
agreement shall control.
Safety Notices
Caution
A CAUTION notice denotes a hazard. It calls attention to operating procedure, practice, or
the like that, if not correctly performed or adhered to, could result in damage to the product
or loss of important data. Do not proceed beyond a CAUTION notice until the indicated
conditions are fully understood and met.
Warning
A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice,
or the like that, if not correctly performed or adhered to, could result in personal injury or
death. Do not proceed beyond a WARNING notice until the indicated conditions are fully
understood and met.
Table of Contents
Support

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About the EMScanner Products
EMScanners product family provides board-level design teams with world-leading fast
nearfield magnetic data to help diagnose EMC design issues.
EMScanner product line consists of EMScanner, EMScannerR+ and EMProbe, these
instruments
capture and display visual images of spectral and spatial scan results in seconds. This
allows the design team to immediately analyze and compare design iterations.
PCB designers can scan any board to identify both constant and time-based emission
sources in the range of 150 kHz to 8 GHz.
EMScanner consists of a patented scanner and a compact adaptor, a customer-supplied
spectrum analyzer and a PC running EMViewer software. Free Keysight IO software
application must also be installed on the customer-supplied PC. The patented scanner
consists of an array of 1,218 H-field (magnetic) probes spaced every 7.5 mm which provides
an effective 3.75 mm resolution. The system operates from 150 kHz to 4 GHz and from 150
kHz to 8 GHz with upgradable and optional software license key.
EMScannerR+ is a self-contained high resolution near-field scanning device. Simply
connect the EMScannerR+ to the PC and to a spectrum analyzer, install the EMViewer
software on the PC and begin measurements. The system operates from 150 kHz to 8 GHz.
The EMScannerR+ provide 0.06 mm incremental measurement steps.
EMProbe is a repeatable high resolution EMC and EMI diagnostic with hand held hear field
probes. Different types of Robotic Arms can be used, based on the desired size and
resolution.
Minimum System Requirements
 CPU 333 MHz or faster
 256 MB RAM recommended
 8 MB Video or more
 Windows 10 OS
 10/100/1000 LAN port
 1 or 2 USB1.0 or USB 2.0 ports

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Technical Support
To help us provide fast and seamless technical support, kindly gather the
following information and contact Technical Support as instructed further
below:
1. Serial number of your unit.
2. Software and firmware versions:
3. Windows OS information
4. Keysight IO version
5. Spectrum analyser model and firmware level
6. Information View data saved as a text file
7. Description of the problem including screen shots and videos
Y.I.C Technologies
[phone]
[email protected]

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Cables & Component Checklist
Components Supplied with the EMScanner System
1 Scanner board
EMScanner
2 Adapter
The adapter controls the EMScanner
3 RF SMA to type
N coaxial cable
It is referred as the RF cable in this
manual. It connects the scanner to the
spectrum analyser and has a SMA
connector for the scanner and a N
connector for the spectrum analyzer 50
ohm input port. It transmits RF output of
the scanner to the spectrum analyser.
4 Micro-D control
cable
It connects the adapter to the scanner to
enable control of the scanner’s switched
probes and to power the scanner.
5 USB Cable It connects the PC (laptop or desktop) to
the adaptor. The USB Cable provided with
the system has ferrites on both ends of the
cable
6 SMB-BNC
Trigger Cable
It connects the adaptor to the spectrum
analyser

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Customer Provided Components
1. Spectrum Analyzer: It must include the necessary options to work with the
EMScanner (see Supported Spectrum Analyzers). It measures the radio frequency
(RF) signal received from the EMScanner, generated by the very-near-field
emissions of an adjacent activated PCB and it outputs the data to the PC.
Most Keysight`s and R&D`s models are supported.
2. PC (Laptop / Desktop): It must support a LAN 10/100 connection to the spectrum
analyzer and a USB connection (version 2.0 or higher) to the adaptor or two USB
connections, one for the spectrum analyzer and one for the adaptor. It runs the
EMViewer software and receives data, which it can display and manipulate
immediately or store for future data presentation.
Options & Accessories
1
BW Upgrade
- From 150KHz - 4GHs to 150KHz - 8GHs
2 Calibration
- Calibration and testing
- Software and Firmware updates
3 Customer Care
Package
- Calibration and testing
- Software and Firmware updates
- Standard parts & labour warranty
Installation & Hardware Setup
1. Install latest version of Keysight IO
Click here to open the website to download the latest version. On the website click on
the Download button and follow the steps.
2. Install the software application
a. Install the EMViewer software by clicking on the Setup application icon. The
application must always be installed on the C: drive.
b. EMViewer software can be found at www.yictechnologies.com
Note:
Spectrum Analyzer, Personal
Computer (PC) connected with
Ethernet cable must comply
CE emission requirements

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3. Connect PC, scanner, adapter and spectrum analyzer as per the diagram below. If
you are using Ethernet between the PC and the spectrum analyzer, use a crossover
Ethernet cable.
If the spectrum analyzer has multiple trigger ports, always connect to Trigger 1 IN.
Hardware Setup
1. Connect the SMB connector to the Adapter and the BNC connector to the external
trigger port on the rear panel of the spectrum analyser
2. Connect the B-end of the USB cable to the USB port on the Adaptor and A-end to
any USB port on the computer.
Connection Diagram

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EMScanner and Adapter ports
1. SMB external trigger cable port
2. LED light shows three stages:
Red: Boot mode (this stage is fast; you may not even notice it)
Orange: Initiation mode (checking adaptor’s firmware)
Green: User mode (adaptor is connected and ready)
3. USB connection port
4. Micro-D control cable connector - Adapter
5. Micro-D control cable connector – Scanner
6. RF output port
If your EMScanner still does not work, then please contact
[e-mail]

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Software Installation
1. Plug-in the EMScanner USB drive. Select the software folder and double click on
Setup.exe file
2. When you are prompted “Do you want to allow the following program from an
unknown publisher to make changes to this computer” click Yes
3. Click Next
4. Click Next
5. Select I Agree and click Next
6. Below screen will be displayed
7. Click Close
8. If Keysight IO Library is already installed on your PC, you can start using
EMScanner
software. Otherwise please follow the next steps to install it. You need an internet
connection to download Keysight IO Library.
9. Once you are directed to the Keysight website click on the Download button and
follow the steps. When the download is complete, open the Downloads folder and
double click IOLibSuite_xxx.
10. The folder will be unzipped.
11. Click Next
12. Select Agree and click Next
13. Select Typical and click Next
14. Click Install
15. If Microsoft Visual C++ is not installed on your PC below screen will be displayed.
Click Yes
16. While the software is installing, the following screen will be displayed.
17. Click Finish
18. Connect the USB Cable to the EMScanner adaptor and PC
a. The driver will be automatically installed
b. If the installation doesn’t start automatically, follow below steps. Open the
Device Manager and expand “USB Custom Driver” and right click on
EMScanner USB Driver (C) 2014 and select Update Driver Software
c. Select Browse my computer for driver software
d. Select Include subfolders and click Browse and select the EMScanner USB
drive and click OK
e. Click Next
f. Click Close to complete installation
19. Start the EMScanner Software by clicking the icon on the Desktop
External Spectrum Analyzer Setup
Attention: An ethernet cross-over cable (static IP must be set for PC and the analyzer) or
USB cable can be used for the PC and spectrum analyzer connection.
USB Connection
If the PC and spectrum analyzer are connected via USB cable skip to Step 2

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LAN Connection
Step 1 - Spectrum Analyzer Setup
• In order to make Technical Support easier, the IP address of the analyzer must be set to
the default IP 172.16.1.148 and the PC’s at 172.16.1.99.
• Please check Technical Bulletin #9 if you have a Keysight spectrum analyzer.
Step 2 - PC Setup
• Several visa libraries may already be installed on the PC. Ensure that Keysight
Connection Expert is set as primary VISA
• Go to Control Panel and double click Add or Remove Programs
• Select Keysight IO Libraries Suite and click Change
• Select Modify and click Next
• Select Keysight Visa as primary VISA and click Next

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• Click Finish
• When you first connect to the spectrum analyzer open Keysight Connection Expert
• Keysight IO will automatically detect the spectrum analyzer and display the analyzer
model. If it doesn’t click Rescan. If it still doesn’t detect the analyzer, click Manual
Configuration.

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• Select LAN instrument and enter the IP address: 172.16.1.148 and click Accept.
• Click Instruments tab to see that spectrum analyzer is successfully detected. It has to be a
“favourite” to operate and must have a yellow star.

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Step 3 – EMScanner Software
The software automatically detects the spectrum analyzer.
Turn on the spectrum analyzer, connect it to the PC and start the EMViewer software. As
soon as the EMViewer software is launched, two messages are displayed at the bottom of
the screen.
The EMViewer software automatically detects first the adaptor/scanner and then the
analyzer. If the adaptor is not connected properly, EMViewer software gives an error
message about the adaptor connection and it doesn’t check the spectrum analyzer
connection until the adaptor is connected to the PC properly.
After the adaptor is connected to the PC properly, restart the EMViewer software.

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If there is a connection problem between the spectrum analyzer and the PC, an error
message will be displayed as shown below.
Setup and Modes of Operation
Setup
EMScanner is a very-near-field scanning system. It is composed of 1,218 H-field probes that
operate between 150 kHz and 8 GHz. Probes are wideband but not very sensitive across
this band thus they are very good at rejecting background noise.
EMScanner does not require a special setup like a shielded room; the Device Under Test
(DUT) may sometimes however pick up strong ambient signals like those present in the cell
band (850 MHz -2100 MHz) or radio FM band.
It is strongly suggested to measure the ambient noise in the test environment before running
any scans with EMScanner. First power off the DUT, start the EMScanner software and then
setup a Spectral Scan for the bandwidth of interest. Run the Spectral Scan and analyze the
test results. If there is any ambient noise being displayed the EMScanner comparison
features will allow you to filter it from the actual DUT test results.
Modes of Operation
1. PCB testing (smaller than the scan area)
Place the PCB directly anywhere on the grid of the scanner. If there are tall components that
prevent the PCB from touching the surface of the scanner, use of an LNA is strongly
suggested. If the other side of the PCB does not have any high components, you should
scan this side.
2. PCB testing (larger than the scan area)
You can take snapshots of the DUT by using the scanner like a hand-held probe. You can
either move the scanner over the DUT or vice versa. Scan one area on the PCB and then
move the scanner to the next position.

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3. Cable testing
Cables from and to the PCB can be tested for emissions. Place the DUT on the scanner and
tape the cables on the scanner or simply tape only the cables on the scanner.
4. System testing
EMScanner will help detect any leakages from a system under test for both frequency and
location.
5. In situ testing
EMScanner is light and compact. The bottom part of EMScanner is made of anodized
aluminium making it non-conductive. Care must be taken to not pierce the anodized surface
since the underlying aluminium is conductive.
The Scanner can easily be placed in a rack-mount system to test the PCBs in their working
environment. A mechanical arm may be required to fix the scanner for ease of testing.

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Menu Bar
Menu Bar is shown below. It allows the user to start a project node, to select a scan type, to
start a single scan, to scan continuously, and to stop a scan, as well as to specify scan
settings.
.
Quick Facts about Menu Bar
Multiple project files can be opened at the same time. Each file will have a dedicated tab
showing the project name. Click on the tab to view the project file.

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If there are any changes compared to the saved version of the project file this will be
indicated by an asterisk (*) behind the file name. If you want to keep your changes, be sure
to save the file before you close. In the example below, a new project file is created and then
a Spectral node is added to the project file.
By default, Project View is pinned and displayed
in the EMScanner software. In order to maximize the
space to view the scan results, Project View can
be hidden. Click the pin icon to auto hide Project
View. Project View will be hidden and now you can
Maximize the scan window (Spectral/Spatial Scan windows automatically resizes to fit the
screen). To display Project View, mouse over on Project View tab. It will be displayed if the
cursor stays on Project View.
Click on Project View tab to keep the Project View visible even if you don’t mouse over it.
However, once you click on other part of the EMViewer software, Project View will auto hide.
To pin Project View, click on the pin icon.

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Viewing Scan Results
Depending on the scan type, you can view the scan results in either spectral or spatial or
both views.
Spectral View
The name of the scan is on the top of the graph. Below the name is the scan type, scan
frequencies, minimum and maximum amplitudes of this span, LNA or Attenuator values
used, patented scanner model and date and time of the scan.
Mouse over the graph to display row / column coordinates, frequency and amplitude values.
To select a peak, mouse over the peak and either left click the mouse or click the space bar
on the keyboard.
Spectral view can be adjusted by the checkmark boxes at the bottom of the graph. Grid and
Peaks can be hidden / displayed. Unit can be switched between dBuV and dBm. Linear
scale is the default settings of the graph. Log Scale can be selected. Peak, Scale and Scan
Options are listed under View Options.
Left click and drag to zoom in. Right click and select Reset Zoom to return to the original
view or Previous Zoom to return to the previous zoom level.
A Delta Marker can be set by left clicking anywhere on the spectral graph. It displays the
amplitude and frequency difference between the current mouse position and the delta
marker position.
Right click on the graph to display menu. You can change some settings of the Spectral
Scan via Settings or Open Scan Data Description which will give information about the scan
and access to Overlay Editor.

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Spatial View
The name of the scan is on the top of the graph. Below name is the scan type, scan
frequency, minimum and maximum amplitudes of this frequency, LNA or Attenuator values
used, patented scanner model and date and time of the scan.
Mouse over the graph to display row / column coordinates, frequency and amplitude values.
Spatial view can be adjusted by the checkmark boxes at the bottom of the graph. Grid and
Overlay can be hidden / displayed. Interpolation (degree of data smoothing in the image) can
be turned on / off. By sliding the Set Colour Threshold on the right side of the graph, you can
increase or decrease the contrast to more clearly identify current loops and peak locations.
Scale and Scan Options are listed under View Options.

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View can be changed to 3D by clicking on the check box. You can rotate the 3D view by left
clicking on the graph and moving the mouse.
When Overlay is checked in 3D view, the wheel of the mouse will adjust the transparency.
But if you press Ctrl key and then use the wheel you can move up and down the overlay to
have the tip of the peaks right at the DUT level.