RIGOL RSA3000E-EMI Users Guide
RIGOL
User’s Guide
EMI Measureme nt Application
Applicable to RSA5000-EMI/RSA3000-EMI
Feb. 2019
RIGOL (SUZHOU) TECHNOLOGIES INC.
RIGOL
Guaranty and Declaration
Copyright
© 2018 RIGOL (SUZHOU) TECHNOLOGIES INC. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL (SUZHOU) TECHNOLOGIES INC.
Publication Number
UGD23101-1110
Software Version
00.02.00
Software upgrade might change or add product features. Please acquire the latest
version of the manual from RIGOL we bsite or contact RIGOL to upgrade the
software.
Notices
RIGOL produ cts are cov ered by P.R.C. and f oreign pa tents, issue d and pendin g.
RIGOL reserves the right to modify or change parts of or all the specifications
and pricing policies at the company’s sole decision.
Information in this publication replaces all previously released materials.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in
connection with the furnishing, use, or performance of this manual, as well as
any information contained.
Any part of th is d ocu ment is f orbi dden to be c opie d, ph oto copie d, o r rea r ran ged
without prior written approval of RIGOL.
Product Certification
RIGOL guarantees that this product conforms to the national and industrial
standards in China as well as the ISO9001:2015 standard and the ISO14001:2015
standard. Other international standard conformance certifications are in progress.
Contact Us
If you have any problem or requirement when using our products or this manual,
please contact RIGOL.
E-mail: service@rigol.com
Website: www.rigol.com
EMI User's Guide I
RIGOL
Safety Requirement
General Safety Summary
Please review the following safety precautions carefully before putting the
instrument into operation so as to avoid any personal injury or damage to the
instrument and any product connected to it. To prevent potential hazards, please
follow the instructions specified in this manual to use the instrument properly.
Use Proper Power Cord.
Only the exclusive power cord designed for the instrument and authorized for use
within the local country could be used.
Ground the Instrument.
The instrument is grounded th rou gh t he Protective Earth lead of the power cord. To
avoid e lectr ic shock, connect the earth terminal of the power cord to the Protective
Earth terminal before connecting any input or output terminals.
Connect the Probe Correctly.
If a probe is used, the probe ground lead must be connected to earth ground. Do not
connect the ground lead to hi gh volta ge. Imp roper w ay of connection could resul t in
dangerous voltages being present on the connectors, controls or other surfaces of
the oscilloscope and probes, which will cause potential hazards for operators.
Observe All Terminal Ratings.
To avoi d fi re or s hock haza rd, observe all ratings an d ma rkers on the i nstrume nt and
check your manual for more information about ratings before connecting the
instrument.
Use Proper Overvoltage Protection.
Ensure that no over voltage (such as that caused by a bolt of lightning) can rea ch the
product. Otherwise, the operator might be exposed to the danger of an electric
shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Objects Into the Air Outlet.
Do not insert objects into the air outlet, as doing so may cause damage to the
instrument.
Use Proper Fuse.
Please use the specified fuses.
II EMI User's Guide
RIGOL
Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered.
Do Not Operate With Suspected Failures.
If you suspect that any damage may occur to the instrument, have it inspected by
RIGOL authorized personnel before further operations. Any mainte nance,
adjustment or replacement especially to circuits or accessories must be performed
by RIGOL autho rized pers onnel.
Provide Adequate Ventilation.
Inadequate ventilation may cause an increase of temperature in the instrument,
which would cause damage to the instrument. So please keep the instrument well
ventilated and inspect the air outlet and the fan regularly.
Do Not Operate in Wet Conditions.
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the
instrument in an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
T o a void dust or moisture from af fecting the pe rformance of the inst rument, keep th e
surfaces of the instrument clean a nd d ry.
Prevent Ele c tr o static Imp a ct.
Operate the instrume nt i n an el ectr ostatic dischar ge protectiv e e nvi ron ment to a void
damage induced by static discharges. Always ground both the internal and external
conductors of cables to relea s e stati c befo re making connections.
Use the Battery Properly.
Do not expose the battery (if available) to high temperature or fire. Keep it out of the
reach of children. Improper change of a battery (lithium battery) may cause an
explosion. Use the RIGOL specified battery only.
Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.
EMI User's Guide III
RIGOL
WARNING
avoided, will result in serious injury or death.
CAUTION
avoided, could result in damage to the product or loss of important data.
DANGER
It calls attention to an operation, if not correctly performed, could
result in injury or hazard immediately.
WARNING
It calls attention to an operation, if not correctly performed, could
result in potential injury or hazard.
CAUTION
It calls attention to an operation, if not correctly performed, could
product.
Hazardous
Voltage
Safety Warning
Protective Earth
Terminal
Chassis Ground
Test Ground
Safety Notices and Symbols
Safety Notic e s in this Manua l:
Indicates a potentially hazardous situation or practice which, if not
Indicates a potentially hazardous situation or practice which, if not
Safety Terms on the Product:
result in damage to the product or other devices connected to the
Safety Symbols on the Product:
IV EMI User's Guide
RIGOL
CAUTION
WARNING
supply.
Care and Cleaning
Care
Do not store or leave the instrument where it may be exposed to direct sunlight for
long periods of time.
Cleaning
Clean the instrument regularly according to its operating conditions.
1. Disconnect the instrument from all power sources.
2. Clean the external surfaces of the instrument with a soft cloth dampened with
mild detergent or water . Avoid havin g any water or o ther objects into the chassis
via the heat dissipation hole. When cleaning the LCD, take care to avoid
scarifying it.
To avoid damage to the instrument, do not expose it to caustic liquids.
To avoid short-circuit resulting fr om moisture or personal injuries, ensure
that the instrument is completely dry before connecting it to the power
Environmental Consideratio ns
The following symbol indicates that this product complies with the WEEE Directive
2002/96/EC.
Product End-of-Life Handling
The equipment may contain substances that could b e harmf ul to t he envi ronm ent o r
human health. To avoid the release of such substances into the environment and
avoid harm to human health, we recommend you to recycle this product
appropriately to ensure that most materials are reused or recycled properly. Please
contact your local authorities for disposal or recycling information.
You can click on the following link
http://www.rigol.com/Files/RIGOL_RoHS2.0&WEEE.pdf to download the latest
version of the RoHS&WEEE certification file.
EMI User's Guide V
RIGOL
RSA Series Spectrum Analyzer Overview
RSA series is a new generation of cost-ef ficient real-time spectrum analyzer with hi gh
performance. With superb performance specifications, clear user interface, the RSA
series allows you to operate it through various ways, such as pressing keys on the
front panel, using the touch screen, connecting the mouse and the keyboard.
Remote communication interfaces are also available. The instrument can be widely
used in education science, corporate R&D, industrial production, and other fields.
Document Overview
This document mainly introduces the front panel functions of the EMI mode.
Topics in this Manual:
Chapter 1 Quick Start
This chapter introduces the user interfa ce of the spe ctrum analy zer in EMI mode and
its mode settings.
Chapter 2 Front Panel Function Keys
This chapter gives detailed function descriptions of the EMI's front panel keys and
the associated menu keys.
Chapter 3 Appendix
This chapter lists the options and accessories that can be ordered along with your
analyzer as well as the service and support information.
Format Conventions in this Manual:
1. Keys:
The keys on the front panel are usually denoted by the format of "Key Name
(Bold) + Text Box". For example, FREQ denotes the FREQ key.
2. Menu keys:
The menu softkeys are usually denoted by the format of "Menu Word (Bold) +
Character Shading". For example, Midspan Freq denotes the midspan menu
item under the FREQ funct i on key.
3. Connectors:
The connectors on the front or rear panel are usually denoted by the format of
"Connector Name (Bol d) + Squ are Br ackets (Bold)". For example , [Gen Output
50Ω].
4. Operation Procedures:
indicates the next step of operation. For example, FREQ Midspan Freq
VI EMI User's Guide
RIGOL
Model
Frequency Range
TG
RSA5065
9 kHz to 6.5 GHz
None
RSA5032
9 kHz to 3.2 GHz
None
RSA5065-TG
9 kHz to 6.5 GHz
6.5 GHz
RSA5032-TG
9 kHz to 3.2 GHz
3.2 GHz
RSA3045
9 kHz to 4.5 GHz
None
RSA3030
9 kHz to 3 GHz
None
RSA3045-TG
9 kHz to 4.5 GHz
4.5 GHz
RSA3030-TG
9 kHz to 3 GHz
3 GHz
indicates pressing FREQ on the front panel and the n p ressing the menu so ftkey
Midspan Freq.
Content Con v entions in th is Man ual:
The RSA series spectrum analyzer includes the following models. This manual takes
RSA5065-TG as an example.
User Manual s of this Product:
Quick Guide, User’s Guide, Programming Guide, Data sheet, etc. For the desired
manual, please download it from www.rigol.com.
EMI User's Guide VII
RIGOL Contents
Contents
Guaranty and Declaration ......................................................................... I
Safety Requirement ................................................................................. II
General Safety Summary........................................................................... II
Safety Not ices and Symbols ..................................................................... IV
Care and Cleaning .................................................................................... V
Environmental Considerations .................................................................... V
RSA Series Spectrum Analyzer Overview ................................................ VI
Document Overview ............................................................................... VI
Chapter 1 Qui ck Start ........................................................................ 1-1
User Interface ........................................................................................ 1-2
Mode Setting ......................................................................................... 1-5
Mode .............................................................................................. 1-5
Mode Setup .................................................................................... 1-6
Install the Option ................................................................................... 1-8
Chapter 2 Front Panel Function Keys ................................................. 2-1
Basic Settings ........................................................................................ 2-2
FREQ .............................................................................................. 2-2
SPAN .............................................................................................. 2-5
AMPT ............................................................................................. 2-6
Sweep and Function Settings................................................................... 2-9
BW ................................................................................................. 2-9
Sweep .......................................................................................... 2-11
Trigger ......................................................................................... 2-13
Trace ............................................................................................ 2-16
Measuremen t Settings .......................................................................... 2-19
Meas ............................................................................................ 2-19
Meas Setup ................................................................................... 2-19
Marker Measurement ............................................................................ 2-30
Marker .......................................................................................... 2-30
Marker-> ...................................................................................... 2-34
Marker Func .................................................................................. 2-35
Peak ............................................................................................. 2-37
Input/Output ....................................................................................... 2-40
Input Impe da nce ........................................................................... 2-40
Ext Gain ....................................................................................... 2-40
Ext Trigger2 .................................................................................. 2-40
Corrections ................................................................................... 2-41
Shortcut Key ........................................................................................ 2-43
Auto Tune ..................................................................................... 2-43
Preset........................................................................................... 2-43
VIII EMI User's Guide
Contents RIGOL
User ............................................................................................. 2-46
Quick Save .................................................................................... 2-46
Cont ............................................................................................. 2-46
Single ........................................................................................... 2-46
System Fu nction ................................................................................... 2-47
System ......................................................................................... 2-47
File ............................................................................................... 2-56
Recall ........................................................................................... 2-60
Save ............................................................................................. 2-63
Chapter 3 Appendix ............................................................................ 3-1
Appendix A: RSA5000 Accessories and Option List .................................... 3-1
Appendix B: RSA3000 Accessories and Option List .................................... 3-2
Appendix C: Warr anty ............................................................................ 3-3
Index ....................................................................................................... 1
EMI User's Guide IX
Chapter 1 Quick Start RIGOL
Chapter 1 Quick Start
This chapter gives you a quick review about the user interfac e, mode settings, and
option installation in the EMI mode of the RSA series spectrum analyzer. For its
appearance and dimens ions, its front an d rear panel, and precautions during first use
of the analyzer, refer to relevant chapters in
User's Guide
Contents in this chapter:
User Interface
Mode Setting
Install the Option
.
RSA5000 Use r's Guide
and
RSA3000
EMI User's Guide 1-1
RIGOL Chapter 1 Quick Start
No.
Name
Description
1
Marker
Displays the current measurement results f or the
Span).
2
RIGOL
Company logo.
3
System status
Rmt: indicates remote operation.
CISPR: indicates that the EMC standard.
4
Trac e indicat or
[1]
Displays information abo ut the trace and the
detector.
5
Information setting
: indicates messages, such as the prompt
: indicates the speaker. You can tune it up and
2 3 4 5 6 7 8 9 10 11 12
1
17 16 15 14 13
User Interface
The user interface of EMI mode is shown in the following figure.
Figure 1-1 User Interface (EMI Mode)
Table 1-1 User Interface Icons
measurement
result
marker (when n o ma rker exists, the measurement
results display Frequency( Meter), Mids pan Freq, and
Ext: indicates the external reference.
Uncal: indicates that the measurement has not be
calibrated.
PA on: indic ates that the preamp has been enabled.
messages, alarm messages, and error messages.
1-2 EMI User's Guide
Chapter 1 Quick Start RIGOL
down to increase and decrease the speaker volume,
inserted.
6
Measurement bar
Displays measurement settings.
7
Measurement
function
Displays the currently selected measurement
function.
8
Worki ng mode
Displays the currently selected working mode.
9
Function keypad
icon
Clicks/Touches the icon to display the function
keypad interface.
10
Time
Displays the system time.
11
Menu title
Displays the currently selected menu name.
12
Menu item
Displays the menu item of the current function.
13
Menu page
number
Displays the current page and the total number of
pages.
14
Meter
mode
: indicates continue; : indicates single.
15
Meter display area
Displays the histogram of the meter and its
parameter informati o n.
16
Trace display area
Displays the scanned spectral trace and the setting
information after the pre-scan is performed.
17
Signal table display
area
Displays the searched sig nal, which corre sp ond to
the marks in the trace.
Trace Number
Trace Type
Detector Type
or set it to mute .
: indicates the network settings. You can
configure network parameters.
: unlocks the front panel keys; : locks the
front panel keys.
: unlocks the touch screen; : locks th e t ouch
screen.
: indicates that no USB sto ra ge device is inserte d;
: indicates that a USB storage device has been
measurement
[1]:
Note
The display of the trace indicator is shown in the following figure:
The first line displays the trace number. The color of the number is the same as that of
the trace. EMI mode only supports 3 traces.
The second line displays the trace type, including W (Clear/Write), A (Trace Average),
M (Maximum Hold), and m (Minimum Hold). The letters with different co l o r s an d in
different forms show different meanings:
— The letter in blue indicates that the trace is updating.
— The letter in gray indicates that the trace is not updated.
— The letter with strikethrough and in gray color indicates that the trace will neither
be updated nor displayed.
— The letter with strikethrough and in blue color indicates that the trace is updating
but not displayed. It is useful in trace math operation.
EMI User's Guide 1-3
RIGOL Chapter 1 Quick Start
The third line displays the detector type of each trace, including P (Positive Peak), p
(Negative Peak), C (CISPR Av erage), R (RMS A verag e), Q (Quasi Pea k), and V (V oltage
Average). The letter in blue in the third line (detector type) indicates that the detector
is in auto state; the letter in white indicates that it is in manual state.
1-4 EMI User's Guide
Chapter 1 Quick Start RIGOL
Mode Setting
Mode
RSA provides four wor king modes: GPSA, RTSA, VSA (option), and EMI (option).
Press Mode to select the working mode.
Note: In different working modes, the functions of the keys on the front panel may
be different. Press Help t o display the help infor mation of the current working mode.
If you need help information for other modes, please exit the help interface first.
Then select the desired wor king mode and obtain the corresponding help
information.
1. GPSA
GPSA adopts two analysis methods: swept SA and FFT. It can not only carry out
frequency domain analysis, but also time domain (zero span) analysis.
Select GPSA. In this working mode, you can press Meas to select multiple
measurements. For details, refer to relevant chapters in Chapte r 2 of
or
User's Guide
2. RTSA
RTSA provides the analysis function for the real-t im e signal, which can capture
the complex signal seamlessly.
Select RTSA. In this working mode, you can also press Meas to select multiple
measurements. For details, refer to relevant chapters in C hapter 3 of
User's Guide
3. VSA
VSA mode provides the s tandard vector s ignal analysis f unction. If you need this
function, please purchase this option (order No. RSA5000-VSA), and install it
according to instructions in "Install the Option".
4. EMI
EMI mode provides the EMI precom patibility measurement function. If you need
this function, please purchase this option (order No.
RSA5000-EMI/RSA3000-EMI), and install it according to instru ctions in "Install
the Option".
Note: when you purchase the RSA3000-EMI option, there is no need to
repeatedly purchase EMC filter and quasi-peak detector kit RSA3000-EMC. The
RSA3000-EMI option contains all the functions of RSA3000-EMC.
RSA3000 User's Guide
or
RSA3000 User's Guide
.
.
RSA5000
RSA5000
EMI User's Guide 1-5
RIGOL Chapter 1 Quick Start
Mode Setup
The Mode Setup menu is used to set parameters related to the working mode.
Open the global parameter setting menu for the selected working mode under
Mode.
Global CF Mode
Turns on or off the global center fr equency. In any working mode, if you enable the
global center frequency mode, then the global center freque ncy will be set to the
center frequency of the current mode. When a different working mode is selected,
the global center frequency will be set to the center frequency of the previous
working mode, that is, the one that is before switching the working mode. If you
change the center frequency in any working mode, then the global center frequency
will change with it.
Global CF
Sets the global center frequency. It is only available when you turn on the global
center frequency.
Mode Preset
Resets the parameters of the current mode to be the factory default settings.
EMC Standard
Sets the EMC standard to "None" or "CISPR".
When "None" is selected, the filter type is set to Gauss. At this point, the filter
bandwidth is -3 dB. The instrument will switch to "CISPR" standard
automatically when "Quasi Peak", "CISPR Average" or "RMS Average" detector is
selected. The filter type is set to EMI. At this point, the filter bandwidth is -6 dB.
When "CISPR" is selected, for Meter 1, the detector is, by default, positive peak;
for Meter 2, the detector is, by default, quasi peak; for Meter 3, the detector is,
by default, CISPR average.
1-6 EMI User's Guide
Chapter 1 Quick Start RIGOL
Meters Control
Sets the parameters of the meter.
1. Meters
1) Select Meter
Specifies the currently selected meter to "Meter1", "Meter2", or "Meter3".
2) Meter
Enables or disables the selected meter.
When enabled, the histogram of the selected meter is displayed in the
meter display area of the user interface, and the corresponding
detector type is selected to perform the measurement.
When disabled, the selected meter is not displayed and the system will
not perform the measurement.
3) Detector
Sets the detector of the selected meter, including "Pos Peak", "Quasi Peak",
"CISPR Average", "RMS Average", "Average(Vol)", and "Neg Peak".
Note: "Quasi Peak", "CISPR Average", "RMS Average", and "Average(Vol)"
are mutually exclusive. You can at most select two among the thr ee items
("Quasi Peak", "CISPR Average", and "R MS Average" ).
4) Limit
Sets the limits of the selected meter.
5) Limit State
Enables or disables the limit line of the selected meter.
2. Dwell Time
Sets the dwell time of the meter detector.
3. Peak Hold Time
1) Peak Hold Type
Sets the max hold time type of the meter to "Adjust" or "Infinite".
When "Infinite" is sele cted, the peak hold line of the selected meter will
not be reset. The Adjust Time menu is grayed out and disabled.
When "Adjust" is selected, the peak hold line of the selected meter will
be reset to the current signal value after the set peak hold t ime. At this
time, you can use the Adjust Time menu to set the peak hold time.
2) Adjust Time
Sets the peak hold time of the meter.
4. Reset Peak Hold
Resets the peak hold lines of all the currently enabled meters to the current
EMI User's Guide 1-7
RIGOL Chapter 1 Quick Start
signal value.
5. Couple to Signal
Enables or disables the coupling function of the meter and the signal tabl e.
When enabled, the instrument will sear ch f or the s ignal frequency that is closest
to that of the current meter from the signal table automatically and mod ify the
meter frequency to the frequency of the signal.
6. Couple to Marker
Enables or disables the coupling function of the meter and the marker. When
enabled, the instrument w ill set the meter frequency to the current frequency at
the marker.
Install the Option
RSA provid es various options (for option information, refer to "Access or ies and
Option List") to expand the function of the spectrum analyzer. If you need to
purchase the option, please contact RIGOL sales representative. After you have
purchased the option successfully, you will get the c orresponding key. Then perform
the following operations to install the option.
1. Acquire the License of the Option
Log in to the RIGOL official website (www.rigol.com), click License
Activation to enter the "Registered product license code" interface.
Input the correct key, serial number (press System About System
System Info to acquire the serial number of the instrument), and
verification code. Click Generate to acquire the option license. In the
license generation interface, click Download to download and save the
license file to the PC.
2. Install the Option
You can install the option via the following 2 m ethods.
1) Install the option by reading the license file from the USB storage dev ice
Copy the saved option license file to the root directory of the USB
storage device.
Power on the inst rument and insert the USB sto ra ge device. Press File
to enter the file operation menu interface.
Press File Explorer, and then the file manager interface is displayed.
In the interface, find the directory of the USB storage device. Then
select the desired option license file (suffixed wit h ".lic"). Press Import
License to import the activation code and complete the reading of the
option installation file.
2) Install the option by sending SCPI Commands
1-8 EMI User's Guide
Chapter 1 Quick Start RIGOL
Log in to RIGOL official website (www.rigol.com) to download the
software Ultra Sigm a. Then install it according to the installation
wizard.
Use the USB cable to connect the rear-panel USB DEVICE int e rface of
RSA to the USB HOST interface of the PC.
Run Ultra Sigma. Search the resource and right-click the resource
name. In the displayed menu, select "SCPI Panel Control". Input the
following option installation command in the displayed SCPI control
panel: :SYSTem:LKEY <option info>@<lic ense info>
<option info>
indicate s the optio n or der No., and <license info>
. Wherein,
indicates the option license code.
For example, the following command is used to install the option
RSA5000-PA.
:SYSTem:LKEY
RSA5000-PA@8AD12B8EBC5DF492D1D4289B7CBA5B6150BF6F5D752
D645C36D74530B05F39B49C461B23A50D6C94A34E06782AC4380070
B0D1A86BA84E02768391FFD70C2103
EMI User's Guide 1-9
Chapter 2 Front Panel Function Keys RIGOL
Chapter 2 Front Panel Function Keys
This chapter describes in detail the front-panel function keys of RSA and their
associated menu functions in EMI mode.
Contents in this chapter:
Basic Settings
Sweep and Function Settings
Measurement Settings
Marker Measurement
Input/Output
Shortcut Key
System Fu nction
EMI User's Guide 2-1
RIGOL Chapter 2 Front Panel Function Keys
start
f
stop
f
center
f
span
f
2)(
startstopcenter
fff +=
startstopspan
fff −=
Parameter
Remarks
Default
515 MHz
Range
0 Hz to Fmax
[1]
Unit
GHz, MHz, kHz, Hz
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = RBW (mete r)*10
Basic Settings
FREQ
Sets the frequency parameters of the analyzer.
The frequency range of the current channel can be expressed by either of two
/
groups of parameters: Start Frequency/Stop Frequenc y (
); or Span
Center Frequency/Span (
/
). If any of the f our pa ra met ers is chan ged, t he
other three parameters will make adjustment automatically to ensure the coupling
relationship among them:
(2-1)
(2-2)
Frequency(Meter)
It is used to set the frequency of the meter in frequency scan. You ca n u se the
numeric keys, the knob, or ar row keys to modify this parameter; y ou can also u se the
touch screen to modify the parameter.
Note: In the trace display area of the user interface, a purple v ertical line is used to
mark the frequency of the meter. Press System Display Meters Freq Line,
you can turn on or of f a purple vertical line.
Table 2-1 Frequency (Meter)
[1]
Note
RSA5065, Fmax is 6.5 GHz; for RSA5032, Fmax is 3.2 GHz. For RSA3045, Fmax is 4.5 GHz; for
RSA3030, Fmax is 3 GHz.
: The maximum measurement frequency Fmax is determined by the instrument model. For
2-2 EMI User's Guide
step = RBW (meter)/2
Chapter 2 Front Panel Function Keys RIGOL
Parameter
Remarks
Default
515 MHz
Range
5 Hz to (Fmax - 5 Hz)
Unit
GHz, MHz, kHz, Hz
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = RBW (mete r)*10
Parameter
Remarks
Default
midspan frequency - span/2
Range
0 Hz to (Fmax – 10 Hz)
Unit
GHz, MHz, kHz, Hz
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = RBW (mete r)*10
Midspan Freq
Sets the center frequency of the current channel.
Remarks:
When you modify the midspan frequency, the start and stop frequency will be
modified automatically if the span remains to be unchanged.
Modifying the midspan frequency indicates that the frequency is changed along
the current channel horizontally, and the adj ustable range should be within the
frequency range specified in the technical specifications of the analyzer.
You can use the numeric keys, the knob, or arrow keys to modify this parameter;
you can also use the touch screen to modify the parameter.
Table 2-2 Midspan Freq
step = RBW (meter)/2
Start Freq
Sets the start frequency of the current frequency channel.
Remarks:
When you modify the start frequency, the span and midspan fre quen cy will be
changed.
You can use the numeric keys, the knob, or arrow k eys to modif y this par ameter;
you can also use the touch screen to modify the parameter.
Table 2-3 Start Freque ncy
step = RBW (meter)/2
EMI User's Guide 2-3
RIGOL Chapter 2 Front Panel Function Keys
Parameter
Remarks
Default
midspan frequency + span/2
Range
10 Hz to Fmax
Unit
GHz, MHz, kHz, Hz
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = RBW (mete r)*10
Start Freq Mode
Sets the coupling mo de o f the st art frequen cy to "Manual" or "Auto". When "Auto" is
selected, the start frequency will automatically couple to the start frequenc y of the
first range among the currently enabled ranges in the scan table.
Stop Freq
Sets the stop frequency of the current frequency channel.
Remarks:
When you modify the stop frequency, the span and midspan frequency will be
changed.
You can use the numeric keys, the knob, or arrow k eys to modif y this par ameter;
you can also use the touch screen to modify the parameter.
Table 2-4 Stop Frequency
step = RBW (meter)/2
Stop Freq Mode
Sets the coupling mode of the stop frequency to "Manual" or "Auto". When "Au to" is
selected, the stop frequency will automatically coup le to th e stop frequency of the
first range among the currently enabled ranges in the scan table.
Scale Type
Sets the scale type of X-axis to Lin or Log.
Remarks:
The X-axis scale type is only related to data display, and w ill not affect scan and
trace data.
Modifying the X-axis scale type will neither restart the scan nor affect the
number of scan points.
2-4 EMI User's Guide
Chapter 2 Front Panel Function Keys RIGOL
Parameter
Remarks
Default
970 MHz
Range
10 Hz to Fmax
Unit
GHz, MHz, kHz, Hz
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
at 1-2-5 step
SPAN
Sets the span of the analyzer. Changing this parameter will chang e the frequency
parameters.
Span
Sets the frequency range of the current channel.
Remarks:
When you modify the span, the start and stop frequency will b e modified
automatically if the midspan frequency remains to be unchanged.
You can use the numeric keys, the knob, or arrow k eys to modif y this par ameter;
you can also use the touch screen to modify the parameter.
Table 2-5 Span
step = span/200, Min = 2 Hz
EMI User's Guide 2-5
RIGOL Chapter 2 Front Panel Function Keys
Parameter
Remarks
Default
106.99 dBuV
Range
-63.01 dBuV ~ 136.99 dBuV
Unit
dBm, dBmV, dBuV, V, W
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = scale
AMPT
Sets the amplitude parameters of the analyzer. You can modify these parameters to
make the signals under test be displayed with minimal errors in the cur rent window,
easy for you to observe .
Ref Level
Sets the maximum power o r voltage that can be displayed in the current window.
Remarks:
The RF link is limited by the maximum mixer level, so when you reduce the
attenuation, the instrument m ay reduce the reference level to meet the mixer
level limit. When you increase the attenuation, the reference level remains
unchanged.
You can use the numeric keys, the knob, or arrow k eys to modif y this par ameter;
you can also use the touch screen to modify the parameter.
Table 2-6 Ref Level
step = scale/10
Att(Meter)
Sets the meter attenuator.
Remarks:
In the frequency scan m easurement, this value only affects the attenuation of
the meter.
You can use the numeric keys, the knob, or arrow k eys to modif y this par ameter;
you can also use the touch screen to modify the parameter.
2-6 EMI User's Guide
Chapter 2 Front Panel Function Keys RIGOL
Parameter
Remarks
Default
0 dB
Range
0 dB to 50 dB
Unit
dB
Knob Step
Left/Right Arrow Key Step
Up/Down Arrow Key Step
5 dB
×=
0.001W
1
R
2
Volts
10lgdBm
=
V1
Volts
20lgVdB
µ
µ
=
1mV
Volts
20lgdBmV
R
2
Volts
Watts
=
R
Table 2-7 Att(Meter)
preamp off, step = 1 dB
RF Preamp(Meter)
Sets the meter preamplifier to be on or off . Whe n the signal under test is a lo w-level
signal, turning on the preamp lifier can reduce the displayed average noise level, so
that you can distinguish low-lev el signals f rom the n oise. By defa ult, the p reamp gain
is 20 dB.
Y Axis Unit
Sets the unit of the Y-axis to dBm, dBmV , dBμV, Volts, or Watts. Wherein, dBm, dB mV,
and dBμV are for Lo g s cale; Volts and Watts are fo r Linear scale. The default unit is
dBuV.
Remarks:
The conversion relations between units are as follows:
Wherein,
denotes the reference resistance.
EMI User's Guide 2-7
(2-3)
(2-4)
(2-5)
(2-6)
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