Siglent SSG3021X User manual

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SSG3000X Signal Generator

User Manual

UM0803X -E01A

SIGLENT

Guaranty and Declaration

Trademark Information

SIGLENT is the registered trademark of SIGLENT TECHNOLOGIES CO., LTD

Declaration

 SIGLENT products are protected by patent law worldwide  SIGLENT reserves the right to modify or change parts of or all the specifications or

pricing policies at company’s sole decision.

 Information in this publication replaces all previously corresponding material.  Any way of copying, extracting or translating the contents of this manual is not allowed

without the permission of SIGLENT.

 SIGLENT will not be responsible for losses caused by either incidental or consequential

in connection with the furnishing, use or performance of this manual as well as any information contained.

Product Certification

SIGLENT guarantees this product conforms to the national and industrial standards in China

as well as the ISO9001: 2008 standard and the ISO14001: 2004 standard. Other international standard conformance certification is in progress.

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General Safety Summary

Carefully read the following safety precautions to avoid any personal injury or damage to the instrument and any products connected to it. To avoid potential hazards, please use the instrument as specified.

Use Proper AC Power Line

Only the power cord designed for the instrument and authorized by local country should be used.

Ground the Instrument

The instrument is grounded through the protective earth conductor of the power line. To avoid electric shock, please make sure the instrument is grounded correctly before connecting its input or output terminals.

Connect the Probe Correctly.

If a probe is used, do not connect the ground lead to high voltage since it has isobaric electric potential as the ground.

Look Over All Terminals’ Ratings

To avoid fire or electric shock, please look over all ratings and sign instruction of the instrument. Before connecting the instrument, please read the manual carefully to gain more information about the ratings.

Use Proper Overvoltage Protection

Make sure that no overvoltage (such as that caused by a thunderstorm) can reach the product, or else the operator might be exposed to danger of electrical shock.

Electrostatic Prevention

Operate the instrument in an electrostatic discharge protective area environment to avoid damages induced by static discharge. Always ground both the internal and external conductors of the cable to release static before connecting.

Maintain Proper Ventilation

Inadequate ventilation may cause increasing of the instrument’s temperature, which will eventually damage the instrument. So keep well ventilated and inspect the intake and fan

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regularly.

Avoid Exposed Circuit or Components

Do not touch exposed contacts or components when the power is on.

Do Not Operate Without Covers

Do not operate the instrument with covers or panels removed.

Use Only the Specified Fuse. Keep Product Surfaces Clean and Dry.

To avoid the influence of dust and/or moisture in the air, please keep the surface of the device clean and dry.

Do Not Operate in Wet Conditions.

In order to avoid short circuiting to the interior of the device or electric shock, please do not operate the instrument in a humid environment.

Do Not Operate in an Explosive Atmosphere.

In order to avoid damage to the device or personal injury, it is important to operate the device away from an explosive atmosphere.

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Safety Terms and Symbols

Terms used in this manual: DANGER: Indicates an injury or hazard that may immediately happen. WARNING: Indicates an injury or hazard that may not immediately happen. CAUTION: Indicates that a potential damage to the instrument or other property might occur.

Symbols used on the instrument. Symbols may appear on the instrument:

Hazardous Protective Warning Chassis

Voltage Earth Ground Ground

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SSG3000X Overview

The SIGLENT SSG3000X series is a bench top RF signal source, with an output frequency range from 9 kHz to 3.2 GHz. It features light weight, small size, and convenient interface make it ideal for R&D, education, production, and maintenance.

Features and Benefits

 Frequency range from 9 kHz up to 3.2 GHz

 0.01Hz frequency resolution

 Level output from -110dBm~+20dBm.

 0.01dBlevel resolution

 Level accuracy ≤ 0.7dB(typ.)

 Phase noise:<-110dBc/Hz @1GHz, offset 20kHz(typ.)

 Standard AM, FM, and PM analog modulation with internal, external and Int+Ext

source

 Pulse modulation, on/off ratio ≥0.7 dB (typ.)

 Pulse train generator(option)

 External IQ modulation with SDG6000X as the Baseband IQ signal

 USB-power meter measurement

 Equipped with a 5-inch (800x480) with display and a capacitive touch screen for

easy and convenient operation.

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Contents

Guaranty and Declaration .......................................................................................................... II

General Safety Summary ......................................................................................................... III

Safety Terms and Symbols ........................................................................................................ V

SSG3000X Overview ................................................................................................................ VI

Chapter 1 Quick Start ........................................................................................................... 1

1.1 Appearance size .................................................................................................. 2

1.2 Preparing for Use ................................................................................................. 3

1.2.1 Adjust the Supporting Legs .......................................................................... 3

1.2.2 Connect to AC Power Supply ....................................................................... 3

1.3 The Front Panel ................................................................................................... 4

1.3.1 Front Panel Function Keys ........................................................................... 4

1.3.2 Front Panel Key Backlight ............................................................................ 5

1.3.3 Digital keyboard ............................................................................................ 6

1.3.4 Front Panel Connectors ................................................................................ 8

1.4 Rear Panel ........................................................................................................... 9

1.5 User interface ..................................................................................................... 13

1.6 Touch operation.................................................................................................. 15

1.7 Parameter setting ............................................................................................... 16

1.8 Help information ................................................................................................. 17

Chapter 2 Front Panel Operation........................................................................................ 18

2.1 Frequency Setting .............................................................................................. 19

2.1.1 RF output Frequency .................................................................................. 19

2.1.2 Freq Offset .................................................................................................. 20

2.1.3 Phase Offset ............................................................................................... 21

2.2 LevelSetting ....................................................................................................... 23

2.2.1 Level setting ................................................................................................ 23

2.2.2 Level Offset ................................................................................................. 24

2.2.3 ALC State .................................................................................................... 25

2.2.4 Flatness ...................................................................................................... 26

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2.3 SweepSetting ..................................................................................................... 29

2.3.1 Sweep State................................................................................................ 29

2.3.2 Step Sweep................................................................................................. 29

2.3.3 List sweep ................................................................................................... 30

2.3.4 Direction ...................................................................................................... 32

2.3.5 Sweep Mode ............................................................................................... 32

2.3.6 Trigger Mode ............................................................................................... 32

2.3.7 Point Trigger................................................................................................ 33

2.3.8 Trigger Slope .............................................................................................. 34

2.4 Modulation Setting ............................................................................................. 36

2.4.1 Amplitude Modulation (AM) ........................................................................ 36

2.4.2 Frequency Modulation (FM) ....................................................................... 39

2.4.3 Phase Modulation (PM) .............................................................................. 41

2.4.4 Pulse Modulation (PULSE) ......................................................................... 44

2.5 LF Setting ........................................................................................................... 54

2.5.1 LF Source ................................................................................................... 54

2.5.2 LF Sweep .................................................................................................... 55

2.6 Utility................................................................................................................... 58

2.6.1 System ........................................................................................................ 58

2.6.2 Store/Recall ................................................................................................ 65

2.7 Power Sensor..................................................................................................... 68

2.7.1 Power meter setting .................................................................................... 68

2.7.2 Level Control ............................................................................................... 72

2.8 I/Q Modulation .................................................................................................... 74

2.8.1 Turning on I/Q modulation .......................................................................... 74

2.8.2 I/Q source ................................................................................................... 74

2.9 Shortcut Keys ..................................................................................................... 75

2.9.1 Preset .......................................................................................................... 75

2.9.2 Home .......................................................................................................... 78

2.9.3 Trigger ......................................................................................................... 78

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2.9.4 Esc/Close .................................................................................................... 78

2.9.5 Mod ON/OFF .............................................................................................. 79

2.9.6 RF ON/OFF................................................................................................. 79

Chapter 3 Application Examples......................................................................................... 80

3.1 Output RF signal ................................................................................................ 80

3.2 Output a modulated signal ................................................................................. 81

3.3 Output a pulse train ............................................................................................ 83

3.4 Output IQ modulated signal ............................................................................... 85

3.5 Test the OIP3 of Active Devices with the SSG3000X ........................................ 88

Chapter 4 Programming Overview ..................................................................................... 91

4.1 Remote Operation .............................................................................................. 91

4.1.1 Connecting via the USB Device port .......................................................... 91

4.1.2 Connecting via the LAN port ....................................................................... 92

4.1.3 GPIB: Connecting via the USB-Host port ................................................... 93

4.2 Build Communications ....................................................................................... 94

4.2.1 Build Communications Using VISA ............................................................ 94

4.2.2 Build Communications Using Sockets/Telnet ............................................. 96

4.3 Remote Control Capabilities .............................................................................. 97

4.3.1 User-defined Programming ........................................................................ 97

4.3.2 Send SCPI Commands via NI MAX ........................................................... 97

4.3.1 Web Control .............................................................................................. 100

Chapter 5 Service and Support ........................................................................................ 101

5.1 General Inspection ........................................................................................... 101

5.2 Troubleshooting ............................................................................................... 101

Chapter 6 Service and Support ........................................................................................ 105

6.1 Service Summary ............................................................................................. 105

6.2 Contact Us ....................................................................................................... 106

SSG3000X User Manual IX

Chapter 1 Quick Start

Subjects in this chapter:

 Appearance Appearance size  Preparing for Use  The Front Panel  Rear Panel  User interface  Touch operation

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 Parameter setting  Help information

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1.1 Appearance size

Figure 1-1 Front View

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Figure 1-2 Top View

Figure 1-3 Side View

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1.2 Preparing for Use

1.2.1 Adjust the Supporting Legs

For benchtop operation, you may want to use the supporting legs.Adjust the supporting feet appropriately to tilt the RF signal source upwards.

Figure 1-4 before adjusting Figure 1-5 after adjusting

1.2.2 Connect to AC Power Supply

The RF signal source accepts 100-240V, 50/60/440Hz AC power supply. Please use the power cord provided to connect the instrument to the power source as shown in the figure below.

Figure 1-6 Power Interface

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NO.

Description

NO.

Description

Function key

Knob

LF output

RF output

Direction key

Digital keyboard

Touch screen display area

Power button

Control Keys

Description

FREQ

Set frequency, frequency offset, phase offset and other related parameters.

LEVEL

Set level, level offset, ALC state, flatness and other parameters, power sensor display and control functions.

SWEEP

Setsweep state, step sweep, list sweep, direction and other related

1.3 The Front Panel

Figure 1-7 the Front Panel

Table 1-1 Front Panel Description

1.3.1 Front Panel Function Keys

Table 1-2 Function keys description

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parameters.

Set LF state, LF level, LF frequency and other related parameters.

MOD

Set various modulation parameters (AM, FM, PM and PULSE).

I/Q

Set IQ related parameters

ESC/Close

During the parameter or editing process, pressing this key will clear the input of the active function area and exit the parameter input state. Press this button to return to local control of previously operating the instrument remotely.

Trigger

When the trigger type is set to Key, press this button to perform one operation.

MOD ON/OFF

The main switch of various modulation modes.

RF ON/OFF

RF signal output switch

PRESET

Press this button to revert to the default parameter. The default parameters refer to the default parameter table.

UTILITY

System and file related operations

HOME

You can get back to the main interface quickly

1.3.2 Front Panel Key Backlight

The on/off state and the color of the backlights of some keys at the front panel indicate the working state of the SSG. The states are as listed below.

1. Power Switch

 Light on and off alternatively, in breathing state: indicate the unit is in stand-by state.  Constant on: indicate the instrument is in normal operating state.

2. Mode ON/OFF

When the Mode ON/OFF is set to turn on the modulation, the light will turn on, turn off the

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modulation, and the lights will turn off.

3. RF ON/OFF

When the RF signal is turned on, the back light is on, and the radio signal is turned off.

1.3.3 Digital keyboard

The front panel of the RF signal source provides a numeric keypad (as shown below). The keyboard supports English uppercase and lowercase characters, numbers, and common symbols (including decimal points, blanks, spaces, and + /), mainly for editing the name of files or folders and setting parameters (refer to the "parameter setting" section).

Figure 1-8 Digital keyboard

1. Digit 0 and space bar switch.

2. In the English state, enter the special symbol!, @, #, $, %, ^, &, *) In the digital state, enter

the decimal point.

3. In the digital state, enter the "-" number, in the English state input for case switching.

4. When setting the amplitude, press this key to set the unitsas dBuV. When setting the

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frequency, press this key to set the units as GHz, if the input is a time-related parameter, press this key to set the unit tons.

5. When setting the amplitude, press this key to set the units as uV.When setting the frequency, press this key to set the units as MHz, if the input is a time-related parameter,

press this key to set the unit to us.

When setting the amplitude, press this key to set the units asmV. When setting thefrequency, press this key to set kHz. If the input is a time-related parameters, press this key to set the unitstoms.

When setting the amplitude, press this key to set the units asdBm unit, whensetting a frequency, the unit is Hz, if the input is a time correlation parameter, press this key to set the units as s.

During the parameter or editing process, pressing this key will clear the input of the active function area and exit the parameter input state.

In the parameter input process, pressing this key will end the parameter input and add the currently set units for the parameter.

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1.3.4 Front Panel Connectors

Figure 1-9 front panel connectors

1. LF (low frequency) output

Output the low frequency signal. This is a BNC connection .The output can also be configured to source the modulation waveform for FM and PM modulation types.

2. RF(Radio frequency) output terminal

RF signal output N-type connector with an impedance of 50 ohms.

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1.4 Rear Panel

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Figure 1-10 Rear Panel

1. AC power input terminal

The RF signal source can operate with AC power from specifications of the AC power supply supported by RF signal source are 100 V - 240 Vat 45 Hz - 440 Hz. Please connect the RF signal source to the AC power supply with the supplied power cord.

2. Ground

System groundterminal.

3. LAN interface

Used to link the RF signal source to the computer or computer network, the SSG3000X is VXI-11 compliant, supports remote commands based on Socket and Telnet, and uses WEB for remote control. It can quickly build test systems with other standard equipment.

4. USB host

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The RF signal source can be used as the "main device" to connect to the external USB device. The interface reads the trace or state file from the U disk, or stores the current instrument state or trace to the U disk, and can also save the content displayed on the current screen in .BMP format to the U disk.

5. USB Device interface

The interface can be connected to a compatible computer and controlled by software on the host computer

6. EXT MOD INPUT

Input BNC connection for an external modulation.

7. 10MHz IN

The [10MHz IN] and [10MHz OUT] connectors are commonly used to establishsynchronization between multiple instruments.The RF source can use an internal reference source or an external reference source.

If the instrument detects that there is a valid 10MHz IN signal at the 10MHz In connector, it will used it as an external reference source. At this point the user interface status bar shows "Ext Ref". When an external reference is lost, exceeded, or disconnected, the instrument automatically switches to the internal reference, and the screen status bar will no longer display "Ext Ref".

8. 10MHz OUT

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If the instrument uses an internal reference source, the [10MHz OUT] connector can output a 10MHz clock signal generated by the instrument and can be used to synchronize other devices.

9. PULSE IN/OUT

The function of the connector is determined by the current mode of pulse modulation.

1) PULSE IN: When the pulse source is "Ext", it is used to input external pulse signals.

2) PULSE OUT: When the Pulse modulation source is "Int" and the pulse output switch is turned on, it is used to output the pulse signal generated by the internal generator. The output signal is related to "Pulse Mode", and can be set to "Single", "Double" or "Train".

10. SIGNAL VALID

When the RF output frequency or amplitude is modified, the RF output connector of the front panel outputs the RF signal at the specified frequency and amplitude after a certain response and processing time in the internal circuit of the instrument. In this process, the [SIGNAL VALID] connector outputs an impulse synchronization signal to indicate the validity of the RF output signal:

 High level (3.3 V): Indicates that the RF signal is being configured;  Low level (0 V): Indicates that the RF signal is stable (effective).

11. TRIG IN/OUT

When PULSE trigger mode is "Int ", the connector can be used to output the trigger signal. When the RF Sweep, LF Sweep, or PULSE trigger mode is "Ext", the connector is used to input the external trigger signal.

12. I INPUT

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Used to input an external modulated I baseband signal when the external IQ modulation mode is on.

13. Q INPUT

Used to input an external modulated Q baseband signal when the external IQ modulation mode is on. Note: [I INPUT] and [Q INPUT] connectors are only available on models equipped with IQ modulation.

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1.5 User interface

Figure 1-11 User Interface

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1. Prompt status bar

 Display Local (local), Remote (remote). When Remote is displayed, the instrument is

being controlled by a remote computer and the front panel input will be locked .To unlock the front panel (enter Local mode).Esc/Close to quit.

 Ext: Ext Ref shows that the SSG is using an external 10 MHz reference.  LF: Low frequency signal generator state.  MOD: The modulation state mode is turned off, the blue is turned on, and the gray is

closed.

 RF: The RF output state.  SWEEP: The status of the sweep state.UNLEVEL: Indicates that the amplitude

accuracy may not be within the scope of the specification index.

 UF: Amplitude flatness function enable.  OFFSET: Amplitude offset enable.

 ：The identification is displayed when a USB disk is inserted

 LAN：LAN state. Indicates that LAN is successfully connected. indicates that

there is no network connection or network connection failed

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2. RF frequency

RF output frequency setting. When the scan type is "frequency" or "frequency & amplitude", the frequency scanning progress bar is displayed.

3. RF level

RF output level setting. When the scan type is "amplitude" or "frequency &litude", the level scanning progress bar is displayed.

4. Touch screen display area: Display the settings under each menu

 I/Q：I/Q output state  LF：LF output state and LF waveform displayed. Sine, Square, Sawtooth, Triangle

and DC can be set up.

 MOD： Modulation state. Amplitude modulation, frequency modulation, phase

modulation, or pulse can be set.

 RF：RF output state.  Power sensor：Display the current reading of the power sensor after accessing the

power sensor.

5. Menu

Switch menu and display menu after entering each function.

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1.6 Touch operation

The RF signal source provides a 5 inch capacitive touch screen to support various gesture operations. Including:

 Click on the screen parameters or menu to edit the parameters.  Left or right slide switches menus.  Up and down slides the display menu

Note: Only when you click on the screen, the scrollbar appears on the right to slide down the menu. If there is no scrollbar, it means that only the current page exists.

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1.7 Parameter setting

Parameter input can be performed through touch screen, keypad and digital keys, knob or

direction keys. This section introduces an example of three parameter setting methods by setting the center frequency to 100 MHz.

1. Using the digital keyboard

1) Press FREQ;

2) Use the numeric key to input the value "100";

3)Then press to select unit MHz;

2. Usingthe touch screen

1) Click the Freq input box on the screen to display the keypad.

2) Enter 100 on the keypad, then select unit MHz on the keypad.

3. Using the knob and the direction key

1) Bring the Focus Cursor on the Freq input box by using the knob.

2) Press the knob and adjust the left and right arrow keys to select the digit you wish toadjust.

3) Then turn the knob or press the up and down arrow keys to change the parameters until the desired value is obtained.

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1.8 Help information

The built-in help system of RF signal source provides help information for each function and menu option on the front panel.

 Press UTILITYbutton and select help. The center of the screen will pop up to help.  Click to enter the corresponding directory.

Figure 1-12 help information

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Chapter 2 Front Panel Operation

This chapter describes in detail the function keys at the front panel and the associated functions.

Subjects in this chapter:

 Frequency Setting

 LevelSetting

 Sweep Setting

 Modulation Setting

 LF Setting

 Utility

 Power Sensor

 IQ modulation

 Shortcut Keys

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2.1 Frequency Setting

The value of the RF frequency is displayed in the header of the display (―Freq‖). This field

provides the direct input of the RF frequency. Alternatively, you can enter the RF frequency in the ―Freq‖ dialog.

Note that the displayed RF frequency in the header and the RF output frequency, entered in the ―FREQ‖ dialog can be different, as explained in the following section.

If you working with a downstream instrument, e.g. a mixer, you can enter related parameter value in the frequency settings dialog (―Offset‖).

The correlation between the RF frequency, the RF output frequency and the frequency offset is as follows:

―FREQ‖ (in header) = ―RF output frequency‖ (frequency in dialog) + ―Freq offset‖ (offset in

dialog)

2.1.1 RF output Frequency

Setting the RF output frequency

1. Keypad operation Press FREQ->Frequency to make the focus fall on this parameter item.  Use the numeric keypad to input the desired value and press the unit button to select

the desired unit. Optional units are GHz, MHz, kHz, and Hz. Press ENTER to select the current unit.

 Press ENTER or press the knob to enter the parameter editing state, and then use

the left and right direction keys to move the cursor to the desired position. Press the up and down direction keys, rotate the knob or press the numeric keypad to modify the value. Press ENTER, knob or ESC to exit the editing mode.

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2. Touch screen operation Click on SHORTCUT->FREQ->Frequency to enter the interface of RF output frequency setting.  Click the frequency parameter, then pop up the keypad interface, then click the

number symbol in the keypad to change the value. Click the unit to modify the unit. Click the tick to confirm the modified value and selected unit.

 Long press edit box to enter the edit mode. Press the up and down direction keys,

rotate the knob or press the numeric keypad to modify the value, and press the

ENTER key, knob or ESC key to exit the edit mode.

Note: The maximum RF output frequency is 3.2 GHz, and 9 kHz is the minimum.

2.1.2 Freq Offset

This setting the displayed frequency offset from the RF output signal. This can be useful if the circuit or device shifts or alters the output frequency .such as an external mixer, by setting an offset; you can read the mixer signal’s frequency directly on the RF generator front panel.

1. Keypad operation Press FREQ->Freq Offset to make the focus fall on this parameter item.  Use the numeric keypad to input the desired value and press the unit button to select

the desired unit. Optional units are GHz, MHz, kHz, and Hz. Press ENTER to select the current unit.

 Press ENTER or press the knob to enter the parameter editing state, and then use

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2. Touch screen operation Click SHORTCUT->FREQ-> Freq Offset to enter the interface of frequency offset setting.  Click the frequency offset parameter, and then pop up the keypad interface, then click

the number symbol in the keypad to change the value. Click the unit to modify the unit. Click the check mark to confirm the modified value and selected unit.

 Long press the edit box to enter the edit mode. Press the up and down direction keys,

rotate the knob or press the numeric keypad to modify the value, and press the

ENTER key, knob or ESC key to exit the edit mode.

Note:  The relationship between the RF output frequency, the display frequency and

frequency offset is: Display frequency = RF output Frequency + Frequency offset

 The difference value between the display frequency and the frequency offset is the

actual RF output frequency, which must not exceed the instrument frequency output range.

2.1.3 Phase Offset

Setting the phase offset from the RF signal

Application:When multiple RF sources are outputting RF signals at the same time, multiple signals can be output to the same phase or a fixed phase offset by adjusting this parameter. Also you should set the devices the same frequency and synchronous them.

1. Keypad operation Press FREQ-> Phase Offset to make the focus fall on this parameter item.  Use the numeric keypad to input the desired value and press the unit button to select

the desired unit. Press ENTER to select the current unit.

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 Press ENTER or press the knob to enter the parameter editing state, and then use

2. Touch screen operation Click on SHORTCUT->FREQ->Phase Offset to enter the interface of phase offset setting.  Click the phase offset parameter, then pop up the keypad interface, then click the

number symbol in the keypad to change the value. Click the unit to modify the unit. Click the check mark to confirm the modified value and selected unit.

 Long press the edit box to enter the edit mode. Press the up and down direction keys,

rotate the knob or press the numeric keypad to modify the value, and press the

ENTER key, knob or ESC key to exit the edit mode.

Click on SHORTCUT->FREQ->Reset phase delta display to reset the display phase offset to 0 deg.

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2.2 LevelSetting

The value of the RF level is displayed in the level text field locatedin the header of the

display (labeled―Level‖).This field provides the direct input of the RF level

value .Alternatively, you can enter the level in the level dialog.

Note that the displayed RF level in the header, and the RF output level, set in the ―Level‖

dialog can be different, as explained in the following section.

If you working with a downstream instrument, e.g. an attenuator or amplifier, you can enter the level offset value in the settings dialog (labeled ―Level Offset‖).

The generator includes these parameters and displays the result in the ―Level‖ field in the status bar, as if the downstream source and the generator were one unit. This displayed level value corresponds to the value at the RF output of the instrument and any downstream sources. . However, the level provided at the RF output of the signal

generator corresponds to the level value set in the ―Level Setting‖ dialog.

When a level offset is enabled, the instrument display changes the color of ―OFFSET

―from grey to blue.

Level (in header) = RF output level (level in the Level menu) + Level offset (Offset in Level menu)

2.2.1 Level setting

Setting the RF signal level

1. Keypad operation: Press the LEVEL->Level to make the focus fall on this parameter item

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 Use the numeric keypad to input the desired value and press the unit button to select

the desired unit. Optional units are dBm, dBuV, uV, mV, V, nW, uW, mW and W. Press ENTER to select the current unit by default.

 Press ENTER or press the knob to enter the parameter editing state, and then use

2. Touch screen operation Click on SHORTCUT ->LEVEL->Level to enter the interface of RF output level setting.  Click the level parameter, then pop up the keypad interface, then click the number

symbol in the keypad to change the value. Click the unit to modify the unit. Click the check mark to confirm the modified value and selected unit.

 Long press edit box to enter the edit mode. Press the up and down direction keys,

rotate the knob or press the numeric keypad to modify the value, and press the

ENTER key, knob or ESC key to exit the edit mode.

2.2.2 Level Offset

Setting the level offset from the RF signal’s level

Application: When connecting a fixed attenuation or gain, the level value after attenuation or amplification can be directly read and set on the RF source by setting a level offset. When level offset is not zero, the status bar will display OFFSET in blue.

1. Keypad operation Press LEVEL-> Level Offset to make the focus fall on this parameter item.  Use the numeric keypad to input the desired value. Press ENTER or click the check

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mark to confirm.

 Press ENTER or press the knob to enter the parameter editing state, and then use

2. Touch operation Click on SHORTCUT->LEVEL->Level Offset to enter the interface of level offset setting.  Click the level parameter, then pop up the keypad interface, then click the number

symbol in the keypad to change the value. Click the check mark to confirm the modified value.

 Long press edit box to enter the edit mode. Press the up and down direction keys,

rotate the knob or press the numeric keypad to modify the value, and press the

ENTER key, knob or ESC key to exit the edit mode. Note:  The difference value between the display level and the level offset is the actual RF

output level, which must not exceed the instrument level output range.

2.2.3 ALC State

Setting the ALC’s working state

ALC is Automatic Level Control .It is an adaptive control system to stabilize the RF output level.

It continuously monitors the current level and adjusts it to keep a steady state over temperature and time.

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1. Keypad operation Press LEVEL-> ALC State to expand the drop-down box, then rotate the knob or press the up and down direction keys to select ALC state.

2. Touch operation Click on SHORTCUT->LEVEL->ALC state to select ALC state. ALC has three functions: "Off", "On" and "Auto‖:

● AUTO Automatically turn on or off the ALC function according to the equipment state.

● On Enable ALC permanently, regardless of the currently selected mode.

● ALC Off (S&H) Deactivate ALC. The instrument switches to Sample & Hold (S&H) state, which still allows

maintaining a constant output level .In ―S&H‖ mode, the signal generator switches for a

short period of time into CW mode and activates ALC. The ALC adjusts the level to the set value and the generator holds the value .Then, the generator switches ALC off again and back to the previous operating mode.

2.2.4 Flatness

The "Flatness" function adjusts the amplitude at specific frequencies by mathematically adjusting the output by applying user-defined level correction lists .Correction is performed by the user-defined table values being added to the output level for the respective RF frequency. With frequencies which are not contained in the list, the level correction is determined by interpolation of the closest correction values. If there is only one point, it will not perform correction.

The flatness correction function can adjust the RF output amplitude corresponding to the

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ROW

Frequency

correction（dB）

frequency point within the frequency range of the instrument to compensate for losses in the cable, or losses caused by other equipment.

1. Flatness Menu  Keypad operation

Press LEVEL->Flatness to make the focus fall on the flatness menu, then press the knob or ENTER key to switch flatness status. When opened, the status bar displays the blue UF letters.

 Touch operation

Click on SHORTCUT->LEVEL ->Flatness to make the focus fall on flatness switch. Then click on the switch button to switch the flatness status.

Note: Flatness correct is enabled when the indicator shows the blue colored ―I‖ and

the status bar will display blue ―UF‖.When disabled,the Flatness indictor will display a grey ―0‖.

2. Flatness settings Press LEVEL->Flatness, and then click the gear icon to enter the flatness list edit page.

Table 2-1Flatness correction list

1) Inset

Press to insert a new row after the last row.

2) Delete

Press to delete the selected row.

3) Empty

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Press to empty any number of rows.

4) Load

Press to enter the file save/call page, select and load existing flatness correction files, see "file management" for details.

5) Save

Press to enter the file save/call page, save the correction data in the list, see "file management" for details.

6) Return

Press return to the previous menu.

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2.3 Sweep Setting

When the RF sweep function is enabled, the RF signal is output from the N-type connector of [RF OUTPUT 50Ω] on the front panel. Note: The RF signal will be on only when the RF switch is on. Press SWEEP to enter RF sweep setting.

2.3.1 Sweep State

The sweep state is off by default. The signal generator SSG3000X offers three different RF sweep types: Freq, Level, and Freq& Level. Clicking the drop-down box of the sweep state to choose a sweep type:

 Off: Default state. The sweep disabledClose RF sweep function.  Freq: Enable frequency sweep. The frequency parameter bar refreshes the current

frequency value in real time and the current sweep progress can be observed on the frequency sweep progress bar.

 Level: Enable level sweep. The frequency parameter bar refreshes the current level

value in real time and the current sweep progress can be observed on the level sweep progress bar.

 Freq& Level: Enable frequency sweep and level sweep function. The frequency and

level parameter bar refreshes the current frequency and level value in real time and the current sweep progress can be observed on the frequency and level sweep progress bar.

2.3.2 Step Sweep

The step sweep state is on by default. Click the slide to switch the on-off state. Click the

to enter the parameter setting menu of step sweep.

Note: The step sweep and list sweep are mutually exclusive. One will shut off

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automatically when the other is on.

1) Start Freq: Initial frequency setpoint of the sweep.

2) Stop Freq: Final frequency setpoint of sweepsetting the stop sweep frequency.

3) Start Level: Initial amplitude level set point of the sweep

4) Stop Level:Final amplitude level set point of the sweep.

5) Dwell time: The interval time between two sweep points.

6) Sweep points:The number of points in a sweep .Every point is interpolated between

the start parameter and stop parameter.

7) Sweep shape: Click the drop-down box, Sawtooth and triangle can be selected  Sawtooth: Sweep period is always from the start frequency or start level to the stop

frequency or stop level. The sweep sequence is similar to a "Sawtooth wave".

 Triangle: Sweep period is always from the start frequency or start level to the stop

frequency or stop level, and then return back to the start frequency or start level. The sweep sequence is similar to a "triangle wave".

8) Sweep Space: Click the drop-down box, linear and log can be selected Note: Level

sweep only support the line sweep mode. List Sweep

2.3.3 List sweep

The list sweep state is off by default. Click the slide to switch the on-off state. Click the "more setting" to enter the table edit page of list sweep. Note: The List sweep and step sweep are mutually exclusive. One will shut off automatically when the other is on.

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As show in the figure, the table edit page consists of the operating button on the left of page, the table on the middle of the page and the menu button on the right side.

1) Inset line: Click the to inset a new line under the current cursor.

2) Delete line: Click the to delete the line under the current cursor.

3) Parameter edit: Click each parameter in the table to set it through the touch screen keyboard or the keypad of the front panel.

3) Return to previous page: Click to return to the previous menu.

4) Cleaning list: Click to clean and preset current list.

5) Default step sweep list: Click to generate a new list according to the step sweep

setting.

6) Loading list: Click button to enter the file system directory. At this time, the

sweep list file previously saved in the device can be selected to read, and the parameter can be modified.

7) Save list: Click the button to enter the file system directory. At this time, enter

the file name, then save the sweep list file.

Note: Please refer to the related introduction in ―File Management‖ for detailed operation of Loading/Saving files.

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Each line parameter represents the setting of each sweep point:

1) Number: Indicates the row number of the sweep point.

2) Frequency: Indicates the frequency of the sweep point.

3) Level: Indicates the level of the sweep point.

4) Time: Indicates the dwell time of the sweep point.

2.3.4 Direction

Sweep direction state is ―up‖ by default. The SSG3000X provides two types: ―up‖ or

―down‖. Click the drop-down box to enable the corresponding sweep direction.

 UP: The signal generator sweeps from the start frequency or start level to the stop

frequency or stop level. The progress bar displayed in the parameter bar is swept from left to right.

 DOWN: The signal generator sweeps from the stop frequency or stop level to the

start frequency or start level. The progress bar displayed in the parameter bar is swept from right to left.

2.3.5 Sweep Mode

Default Sweep mode is ―continuous‖. The SSG3000X offers ―continuous‖ or ―single‖

sweep modes. Click the drop-down box to enable the desired mode.  Continuous: When the trigger condition is met, the signal generator is continuously

swept with the current settings.

 Single: When Execute single sweep is clicked, the signal generator executes a

single sweep with the current settings.

2.3.6 Trigger Mode

The default trigger mode is ―Auto‖. The SSG3000X provides four types of trigger mode:

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―Auto‖, ―Key‖, ―Bus‖ and ―Ext‖. Click the drop-down box of the trigger mode to select the desired type:

 Auto: The default mode. If the sweep mode is ―continuous‖, just select one sweep

type to start a sweep. If the sweep mode is ―single‖, then click the Execute single

sweep button to start a one time sweep.

 Key: If the sweep mode is ―continuous‖, the device will start a one time sweep after

you press the Trigger button on the front panel or click Click to trigger button on the touch screen. If the sweep mode is ―single‖, first click the Execute single sweep button, then a one time sweep will be started after you press the Trigger button on the front panel or click Click to trigger button on the touch screen.

 Bus: If the sweep mode is ―continuous‖, the device will start a one time sweep after

receiving a ―*TRG‖ command over the communications bus (USB or LAN) from a

controlling computer. If the sweep mode is ―single‖, click the Execute single sweep button first, then send a ―*TRG‖ command to start a one time sweep.

 External: The device receives the trigger signal input from the [TRIGGER IN]

connector on the back panel. If the sweep mode is ―continuous‖, the device will start a

one time sweep after receiving a specified polarity TTL pulse. If the sweep mode is ―single‖, click the Execute single sweep button firstly and then the device will start one time sweep after receiving a specified polarity TTL pulse.

2.3.7 Point Trigger

The default point trigger mode is ―Auto ―. The SSG3000X provides four types of point trigger: ―Auto‖, ―Key‖, ―Bus‖ and ―Ext‖.

Click the drop-down box of point trigger mode to select the desired type:  Auto: The default mode. If the sweep mode is ―continuous‖, just select one sweep

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type to start and sweep through each point continuously in one sweep cycle. If the sweep mode is ―single‖, first click Execute single sweep button to sweep through each point in one sweep cycle.

 Key: If the sweep mode is ―continuous‖, the device will sweepone point-at-a-time after

every press of the Trigger button on the front panel or click Click to trigger button on the touch screen. If the sweep mode is ―single‖, you will need to click Execute single sweep button first ,and then press the Trigger button once for every point in the sweep. The sweep will stop when finish one sweep cycle.

 Bus: If the sweep mode is ―continuous‖, the device will start a sweep after you send a

―*TRG‖ command. If the sweep mode is ―single‖, you will need to click Execute

single sweep button first and then send a ―*TRG‖ command to start sweep a point. The sweep will stop when finish one sweep cycle.

 External: The device receives the trigger signal input from the [TRIGGER IN]

connector on the back panel. If the sweep mode is ―continuous‖, the device will

sweep one point when receiving a specified polarity TTL pulse. If the sweep mode is

―single‖, you will need to click the single sweep button first and then the device will

start sweep one point when receiving a specified polarity TTL pulse. The sweep will stop when finish one sweep cycle.

2.3.8 Trigger Slope

When the trigger mode or the point trigger mode is ―Ext‖, you can select ―Positive‖ or

―Negative‖ as the rigger type. The default trigger type is ―Positive‖. Click the drop-down

box to select the desired trigger edge:  Positive: A sweep is triggered when the rising edge of the external trigger signal

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arrives.

 Negative: A sweep is triggered when the falling edge of the external trigger signal

arrives. Note: The trigger edge control is displayed only when the trigger mode or point trigger mode is ―Ext‖, and is hidden in other cases.

When performing a sweep operation, the order of priority that satisfies the required conditions from high to low is: Single sweep -> trigger mode -> point trigger mode.

For example, when the ―trigger mode ― and ―point trigger mode‖ are both selected as ―key‖:

In the ―continuous sweep‖, first press the Trigger key to satisfy the trigger mode, and then

press the Trigger key again to meet the point trigger sweep mode to begin sweep. In the ―single sweep‖, you need to press Execute single sweep first to meet the single sweep conditions, and then press the Trigger key two times to meet the sweep cycle trigger and point trigger conditions to begin sweep.

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Function Menu

Instructions

AM State

Turn on or off the level modulation function

AM Source

Select the modulation source, which can be Int, Ext, Int +

Ext

AM Shape

Select modulation wave type

AM Rate

Frequency range: 0.01Hz~100kHz

AM Depth

Modulation depth range is from 0.01% to 100%

AM Sensitivity

Show the sensitivity of the external modulation source

level to the modulation depth is 50%/V

2.4 Modulation Setting

2.4.1 Amplitude Modulation (AM)

Amplitude Modulation (AM) is a technique for delivering information by linearly varying the amplitude of anRF carrier signal.

AM source can be selected as an internal source, external source or internal source + external source. To source dual tone level modulation, configure the source for internal source + external source.The internal source is shared with the LF. When the LF is turned on, the internal source can’t be used as a modulation source.

Select MOD->AM, to enter the level modulation parameter setting state. The setting instructions are as follows:

2.4.1.1 AM State

Select MOD->AM-> AM State, and then turn on or off the level modulation.

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2.4.1.2 AM Source

An internal and/or external source can be selected for amplitude modulation. MOD->AM->AM Source to set ―Int‖ or ―Ext‖ or ―Int + Ext‖. The default is ―Int‖.

1. Int

wheninternal modulation is selected, the AM Shape, AM frequency, and AM depth are

controlled by the instrument.The internal modulation setting uses the LF generator as

the modulation signal source. When modulation is activated, the LF output will be

disabled, if it was previously activated.

2. Ext Use an externally applied modulation signal. The external signal is input via the【EXT MOD INPUT】connector on the rear panel of the instrument. The modulated signal can be an arbitrary waveform. At this time, the modulation depth is controlled by the level of the externally modulated signal, and the sensitivity of the external modulation source level to the modulation depth is 50%/V.

3. Int + Ext Use both the internal and externally applied modulation signals, this technique can be used to source dual tone AM.

2.4.1.3 AM Shape

The SSG3000X supports modulation waveforms for internal ―sine‖ and ―square‖

modulation sources. Select MOD->AM-> AM Shape, after setting to ―Int‖ or ―Int+Ext‖, you can select AM waveform as ―Sine‖ or ―Square‖.

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2.4.1.4 AM Rate

Select MOD->AM-> AM Rate, and setthe AM rate.

1. Sine wave modulation frequency range is 0.01Hz~100kHz

2. Square wave modulation frequency range is 0.01Hz~20kHz

2.4.1.5 AM Depth

Set the modulation depth in percent. Select MOD->AM->AM Depth, and then set AM depth. When the ―Int‖ modulation source is selected, the AM modulation depth is set from 0.01% to 100%. The relationship between the modulation depth m and the carrier sideband level

difference ΔP is satisfied: ΔP=6.02-20*log (m)

When the ―Ext‖ modulation source is selected, the sensitivity of the external modulation

source level amplitude to the modulation depth is 50%/V. For example, the modulation depth is 100% when the external modulation signal is 2Vpp (offset is 0V), and the modulation depth is 50% when the external modulation signal is 1Vpp (offset is 0V).

When selecting the ―Int+Ext‖ modulation source, the modulation depth set is the internal

source modulation depth + the external source modulation depth, and the internal source modulation depth is assigned = the external source modulation depth. For example, if the modulation depth is set to 100%, the modulation depth assigned to the internal source is 50%, the external source modulation depth is 50%, and the external modulation sensitivity is 25%/V. If the external modulation signal is 2Vpp (the offset is 0V), then the modulation depth is 100%.

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2.4.2 Frequency Modulation (FM)

Enter the FM interface

1. Click the MOD icon in the main interface to enter the MOD interface. The MOD

interface displays the AM page by default. Then switch to the FM modulation page by

clicking or sliding left.

2. Enter the FM modulation page directly through the shortcut menu.

3. Enter the MOD interface via the MOD button and switch to the FM page.

2.4.2.1 FM State

Select MOD ->FM->FM State, to turn FM on or off.

2.4.2.2 FM Source

Select MOD ->FM-> FM Source to set ―Int‖ or ―Ext‖ or ―Int + Ext‖. The default is ―Int‖.

1. Int Use the internal LF generator as the modulation signal source for FM. The FM Shape, FM deviation, and FM rate can be set. When LF and FM mod is simultaneous on, their frequency and shape is changed according to who was changed.

2. Ext Use an externally applied modulation signal. The external signal is input via the MOD EXT connector with an impedance matching of 50 ohms and the amplitude is up to +-3V.

3. Int + Ext Use both, the internal and externally applied modulation signal;this technique can be used to perform two-tone FM.

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2.4.2.3 FM Shape

Select MOD->FM-> FM Shape. After setting to ―Int‖ or ―Int+Ext‖, you can select FM waveform as ―Sine‖ or ―Square‖.

2.4.2.4 FM Rate

Select MOD->FM-> FM Rate, you can set the FM rate.

1. The sine wave modulation frequency range is 0.01Hz~100kHz

2. The square wave modulation frequency range is 0.01Hz~20kHz

2.4.2.5 FM Deviation

Corresponding to different carrier frequencies, the frequency offset range may be different; the setting range is governed by the following equation: 0.01Hz~N×1MHz. For the definition of N, refer to the data sheet.  When the modulation source is set to ―Int ―, the set value is actually the frequency offset of the RF output.

 When the modulation source is set to ―Ext‖, it is related to the amplitude of the external input modulation signal. The offset of RF output = amplitude of input signal × external modulation sensitivity.

 When the modulation source selects ―Int+Ext‖, the set value is the maximum value of the total offset, the internal source accounts for 50%, and the external source accounts for 50%. RF output offset = set value × 0.5 + external input signal amplitude × external

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modulation sensitivity.

External modulation sensitivity

The display shows the unit offset quantized by the amplitude of the externally modulated signal, which is equal to the maximum offset when the external modulation input is full scale. When the ―Int+Ext‖ modulation source is enabled, the internal and external each account for 50% of the maximum offset, so when the external source inputs a full scale signal, it only accounts for 50% of the maximum output offset.

Note: The modulation function must be activated to modulate the output signal. You can turn it on or off by pressing the MOD ON/OFF button or you can open it by checking the MOD module on the home page, as shown in the figure:

2.4.3 Phase Modulation (PM)

Enter the PM interface

1. Click the MOD icon in the main interface to enter the MOD interface. The MOD

interface displays the PM page by default. You can switch to the PM modulation page

by clicking or sliding left.

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2. Enter the PM modulation page directly through the shortcut menu.

3. Enter the MOD interface via the MOD button and switch to the PM modulation page.

2.4.3.1 PM State

Select MOD ->PM->PM State to turn PM on or off.

2.4.3.2 PM Source

Select MOD ->PM->PM Source to set ―Int‖ or ―Ext‖ or ―Int + Ext‖. The default is ―Int‖.

1. Int Use the internal LF generator as the modulation signal source for PM. The PM Shape, PM deviation, and PM rate can be set.

2. Ext Use an externally applied modulation signal. The external signal is input via the EXT MOD INPUT connector with an impedance of 50 ohms

3. Int + Ext Use both, the internal and externally applied modulation signal;this technique can be used to perform two-tone PM.

2.4.3.3 PM Shape

Select MOD ->PM->PMShape. After setting the source to ―Int‖ or ―Int+Ext‖, you can select PM waveform as ―Sine‖ or ―Square‖.

2.4.3.4 PM Rate

Select MOD ->PM->PMRate, then you can set the PMrate.

1. The sine wave modulation frequency range is 0.01Hz~100kHz

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2. The square wave modulation frequency range is 0.01Hz~20kHz

2.4.3.5 PM Deviation

The setting range is0.00001rad~N × 5rad. For the definition of N, refer to the data sheet.  When the modulation source is set to ―Int ―, the set value is actually the frequency offset of the RF output.

 When the modulation source is set to ―Ext‖, it is related to the amplitude of the external input modulation signal. Offset of RF output = amplitude of input signal × external modulation sensitivity.

External modulation sensitivity

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2.4.4 Pulse Modulation (PULSE)

Pulse Modulation represents the process of modulating an RF carrier signal with a pulse signal as a modulated signal.

2.4.4.1 Pulse State

Select MOD->PULSE->Pulse Stateto turn Pulse on or off.

2.4.4.2 Pulse Out

Select MOD->PULSE->Pulse Outto turn Pulse Out on or off. The default is off.

 On: Turn on the pulse output function. At this time, the signal source outputs the pulse signal generated by the internal pulse generator from the [PULSE IN/OUT] connector on the rear panel.

 Off: Turn off the pulse output function. Notes: When the modulation source is ―Ext‖, the pulse output function will be turned off automatically.

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2.4.4.3 Pulse Source

Select MOD->PULSE->Pulse Source to set ―Int‖ or ―Ext‖. The default is ―Int‖.

1. Int Use the internal LF generator as the modulation signal source for PM. You can set Pulse Mode, Pulse Period, and Pulse Width and so on.

2. Ext Use an externally applied modulation signal. The external signal is input via the[PULSE IN/OUT] connector. At this time, setting items such as pulse type, pulse period, pulse width, trigger mode, and pulse output are hidden.

2.4.4.4 Pulse Polarity

The default is ―Normal‖.Click the drop down box to switch the pulse polarity type

 Normal: Perform pulse modulation when the pulse modulation signal is high.  Inverse: Do not perform pulse modulation when the pulse modulation signal is high.

2.4.4.5 Pulse Mode

When the modulation source is ―Int‖, the SSG3000X provides three pulse modes: ―Single‖,

―Double‖ and ―Train‖. The default is ―Single‖. Click the drop down box to select the pulse

mode.  Single: A pulse signal is generated during one pulse period. At this time, the two settings ―Double Pulse Delay‖ and ―#2 Width‖ are hidden.

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 Double: Generate two pulse signals in one pulse period. At this time, the two settings

―Double Pulse Delay‖ and ―#2 Width‖ are shown.

 Train: Multiple pulse signals in one pulse period. At this time, the pulse sequence setting item appears, and the two settings ―Double Pulse Delay‖ and ―#2 Width‖ are hidden.

Note: This setting item will be hidden when the modulation source is ―Ext‖.

2.4.4.6 Pulse Period

The pulse period represents the time interval between two adjacent periodic pulses, and the period of the single pulse or double pulse modulated signal can be set by touching the screen keyboard or pressing the front panel keypad.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse

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mode is ―Single‖ or ―Double‖.

2.4.4.7 Pulse Width

The pulse width indicates the duration when the pulse signal is at a high level. The width of the first pulse of the single pulse modulated signal or the double pulse modulated signal can be set by touching screen keyboard or pressing the front panel keypad.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse mode is ―Train‖.

2.4.4.8 Double Pulse Delay

The double pulse delay indicates the delay from the start of the first pulse to the start of the second pulse in a single cycle of the double pulse modulated signal. This parameter can be set by touching screen keyboard or pressing the front panel keypad.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse

mode is ―Train‖.

2.4.4.9 #2 Pulse Width

#2 Pulse Widthrepresents the width of the second pulse of the double pulse modulated signal. This parameter can be set by touching screen keyboard or pressing the front panel keypad.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse mode is ―Train‖.

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2.4.4.10 Trigger Out

The default is ―off‖, Click the slide switch to switch the trigger output switch status.

 On: Turn on the trigger output function. At this time, the signal source outputs the trigger signal generated by the internal pulse generator from the [TRIG IN/OUT] connector on the rear panel.

 Off: Turn off the trigger output function.

Note: When the trigger mode is ―Ext Trig‖ or ―Ext Gate‖, the trigger output function will be

automatically turned off. And only the trigger signal of the PULSE modulation signal is output, and the trigger signals of the LF SWEEP and the RF SWEEP are not output.

2.4.4.11 Pulse Trigger

The trigger mode defaults to ―Auto‖. The SSG3000X offers four pulse trigger types: ―Auto‖,

―Key‖, ―Ext Trig‖ and ―Ext Gate‖.

Click the drop-down box corresponding to the trigger mode to select the desired type.  Auto: The default trigger method. The signal source satisfies the trigger condition at any time. At this time, the two settings ―TrigSlope‖ and ―Trig Polarity‖ are hidden.

 Key: Each time the ―Trigger‖ key is pressed, the signal source initiates a pulse modulation. At this time, the two settings ―TrigSlope‖ and ―Trig Polarity‖ are hidden.

 Ext Trig: The source receives the trigger signal from the [PULSE IN/OUT] connector on the rear panel. Each time a TTL pulse signal of the specified polarity is received, the

source initiates a pulse modulation. At this point, the ―Trig Slope‖ setting will be displayed

and the ―Trig Polarity‖ setting will be hidden.

 Ext Gate: The source receives the trigger signal from the [PULSE IN/OUT] connector

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on the rear panel. Each time a TTL pulse signal of the specified polarity is received, the

source initiates a pulse modulation within its active level. At this point, the ―Trig Polarity‖

setting will be displayed and the ―Trig Slope‖ setting will be hidden.

2.4.4.12 Trigger Delay

The trigger delay indicates the delay from the receipt of the external trigger signal to the start of the first pulse. This parameter can be set by touching screen keyboard or pressing the front panel keypad.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse

trigger is not ―Ext Trig‖.

2.4.4.13 Trigger Slope

The default is ―Positive‖, click the drop-down box to switch the trigger slope.

 Positive: Trigger a pulse when the positive slope of the external trigger signal arrives.  Negative: Trigger a pulse when the negative slope of the external trigger signal

arrives.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse

trigger is not ―Ext Trig‖.

2.4.4.14 Trigger Polarity

The default is ―Normal‖; click the drop-down box to switch the trigger polarity type.

 Normal: Trigger a pulse modulation during the effective time when the external gate signal is high.

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 Inverse: Trigger a pulse modulation during the effective time when the external gate signal is not high.

Note: This setting item will be hidden when the modulation source is ―Ext‖ or the pulse

trigger is not ―Ext Gate‖.

2.4.4.15 Pulse Train

When the Pulse Mode is set to Train, the Pulse Train option appears. Click Pulse Train to enter the table edit page for the pulse sequence.

As shown, the list edit page consists of the left action button, the middle table area, and the right menu button:

1) Insert line: Click the button to automatically insert a new line on the next line where the current cursor is located.

2) Delete line: Click the button to delete the line where the current cursor is located.

3) Parameter editing: Click each parameter in the table area and set it through the touch screen keyboard or the front panel keypad.

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4) Return to the previous level: Click the button to return to the previous menu.

5) Clear list: Click the button to clear and reset the current list.

6) View the pulse sequence diagram: Click the button to enter the pulse sequence diagram page.

7) Load list: Click the button to enter the file system directory. At this time, you can select and read the scan list file previously saved in the device, and you can edit and modify the next step.

8) Save the list: Click the button to enter the file system directory. At this time, you need to enter the file name to save the scan list file.

Note: For details on loading/saving files, please refer to the related introduction in ―File

Management‖.

The parameters in each row represent the settings for each pulse signal in a single pulse period:

1) Serial number: indicates the serial number of the pulse signal corresponding to this line.

2) Positive pulse time: Indicates the duration of the pulse signal being high.

3) Negative pulse time: Indicates the duration of the pulse signal being low.

4) Quantity: Indicates the number of repetitions of this pulse signal. The pulse sequence schematic page is shown below:

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As shown, the page consists of the upper drawing area and the lower control area:

1) Plot area: A schematic diagram of the waveform generated from the data entered in the current pulse sequence table. The vertical direction represents the high and low level changes of each pulse signal in the pulse sequence, and the position of the high and low levels in the direction is unchanged; The horizontal direction represents the high and low level duration of each pulse signal in the pulse sequence. You can use the zoom feature to observe different details of the waveform.

2) Control area: Click the button to return to the previous pulse sequence table edit

page; Click the button to restore the waveform to the initial state; Click the

button to view the current waveform center position. Zoom in; Click the button to

zoom out the center position of the current waveform; The ―Zoom Position‖ parameter

control displays the center position of the current waveform, and the operations of the ―Zoom In‖ and ―Zoom Out‖ buttons are based on this position. It can be set by touching screen keyboard or pressing the front panel keypad to shift the current waveform to the corresponding position.

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The scaling operation for the drawing area can be achieved in the following ways:

 Zoom in, zoom out, restore and pan through the Control Area's , , , and Zoom Position parameter controls.  From the web interface, you can press the left mouse button, select the area to be enlarged, and then release the left button to complete the zoom operation. You can also use the finger or touch directly to zoom in on the touch screen; click the right mouse button to undo the previous step.  From the web interface, you can use the mouse wheel, roll down to zoom in and roll up to zoom out. The zoom position of the wheel is the same as the zoom position of the control area.

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2.5 2

LFoffset LEVEL

2.5 LF Setting

2.5.1 LF Source

The SSG3000X has an internal low-frequency signal generator that can be used as an internal source for low-frequency signal output or analog modulation. When output as a low-frequency signal, the LF output supports several common waveforms, and the frequency and amplitude of the low-frequency signal can be set. Press LF to enter the LF parameter settings. Setting description is as follows：

2.5.1.1 LF State

Select LF-> LF Source ->LF State to turn LF on or off.

2.5.1.2 LF Frequency

Select the LF-> LF Source ->LF Frequency to set the frequency of the LF output signal, the setting range is 0.01Hz ~ 1MHz.

2.5.1.3 LF Level

Select the LF-> LF Source ->LF Level to set the LF output amplitude, the range is from 1mV ~ 3V, and supports a number of unit types.

Select LF-> LF Source->LF Offset to set the amplitude offset of the LF output. The

setting range is.

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2.5.1.4 LF Offset

SIGLENT

2.5.1.5 LF Shape

Select LF-> LF Source->LF Shape, you can select the LF output signal waveform.

Current waveform types are ―sine wave‖, ―square wave‖, ―Sawtooth wave‖, ―triangle wave‖,

and ―DC‖. The default LF output signal is the ―sine wave‖ waveform.LF phase

2.5.1.6 LF Phase

Select the LF-> LF Source ->LF Phase you can set the LF phase, the setting range is

-360° ~ 360°, and supports degrees or radian units.

2.5.2 LF Sweep

2.5.2.1 Sweep State

Select LF->LF Sweep->Sweep State to activate the LF frequency sweep signal generation.

2.5.2.2 Start Freq

Select LF->LF Sweep ->Start Freq to set the start frequency.

2.5.2.3 Stop Freq

Select LF->LF Sweep ->Stop Freq. to set the stop frequency.

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2.5.2.4 Center Freq

Select LF->LF Sweep->Center Freq to set the center frequency.

2.5.2.5 Freq Span

Select LF->LF Sweep ->Freq Span to set the frequency Span.

2.5.2.6 Direction

Select LF-> LF Sweep ->Sweep Direction. to set the sweep direction.

2.5.2.7 Sweep Times

Select LF->LF Sweep ->Sweep Time to define the duration of the individual sweep steps.

The ―Dwell Time‖ set by the user is used as the step time of the sweep.

2.5.2.8 Trigger Mode

Select LF->LF Sweep->Trigger Mode to select the LF frequency sweep mode. If you change the sweep mode during the execution, the signal generator stops the sweep and starts with the next trigger event at the initial value.

1. Auto Generate a continuously repeating sweep signal immediately after activating the sweep mode.

2. Key Generate a single sweep cycle after a trigger event. The sweep steps within the cycle are performed automatically, controlled by the dwell time. If one cycle is completed, the

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instrument waits for the next trigger event.

3. Ext Generate a single sweep cycle when an external trigger event occurs.

2.5.2.9 Sweep Shape

Select LF->LF Sweep->Sweep Shape to select the waveform shape of the sweep signal.

1. Sawtooth The sweep runs from the start to the stop frequency. Each subsequentsweep starts at the start frequency that means the shape ofthe sweep sequence resembling a Sawtooth.

2. Triangle The sweep runs from start to stop frequency and back, that meansthe shape of the sweep resembles a triangle. Subsequent sweepstarts at the initial start frequency.

2.5.2.10 Sweep Space

Select LF->LF Sweep->Sweep Space to select the mode for the calculation of the frequency sweep intervals.

1. Linear Take the frequency value entered as an absolute value in Hz

2. Logarithmic Takes the value entered as a logarithmic value that means as a constantfraction of current frequency in %.

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2.6 Utility

2.6.1 System

2.6.1.1 Setting

1. Language

Set the display language of SSG3000X. SSG3000X supports Chinese/English menus, help and interface display.

Press UTILITY->Setting->Language to expand drop down list, and then select the desired language.

2. Power On

Set the type of parameter configuration to be loaded when the instrument startup. Press UTILITY->Setting ->PowerOn to expand drop down list, and then select ―Default‖ or ―Last‖. Default: The factory defineddefault settings will be loaded at power on. For more details please refer toTable 2-3. Last: The system setting before the last power-off will be loaded automatically at power-on.

3. Preset Type

Set the parameters for the Preset configuration of the instrument.

Press UTILITY->Setting->Preset Type to expand drop down list, and then select ―Default‖ or ―User‖  Default: The default settings will be loaded when PRESET is pressed. For more

details please refer toTable 2-3.

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Parameter

Default

Setting

Language

Chinese/English(depend on factory config)

Preset

Default

Beeper

Screen Saver

Off

Power On

Off

Interface

DHCP State

Off

IP Address

10.11.13.220

Subnet Mask

255.255.255.0

Gateway

10.11.13.1

GPIB Address

Level

 User: The user specified configuration will be loaded when PRESET is pressed. After

―User‖ is selected, click button to load the configuration file. For detailed operation procedure please refer to ―Store/Recall‖

4. Factory Default

Restore the instrument configuration to factory settings. Press UTILITY->Settings->Set to factory defaults, set the instrument parameters and status to factory defaults. Restore factory settings.In addition to loading the default settings, the following functions and parameters will be configured.

Table 2-2 Factory default

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Flatness

null

Sweep

List sweep

Keep only one default scan point

Mode

Pulse Train

Keep only one default pulse

5. Beeper

Set whether the beeper make a sound when clicking any button, input box or check box. Press UTILITY->Setting ->Beeper to switch the beeper state.

6. Screen Saver

Set the state of screen saver. When screen saver is switched on, screen saver will be enabled if no action is taken within the specified time. Click the touch screen or press any key to resume.

Press UTILITY->Setting->Screen Saverto expand drop down list, and then select ―off‖, ―10 s‖, ―1 min‖, ―5 min‖, ―15 min‖, ―30 min‖, ―1 hour‖ or ―2 hour‖

7. Power On Line

Set the instrument power on sequence. In some situations, you may want the instrument to automatically restart if the line power is restored.  Off: If line power is available, you need to manually press the power key on the front

panel to start the instrument.

 On: If line power is available, the instrument starts automatically. This is an idea

feature for automatic or remote tests that may be difficult to physically reach.

Press UTILITY->Setting ->Power on Line to switch the state

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8. Time Setting

Set the display time of the instrument. Press UTILITY->Setting ->Time Setting, then move the cursor to specified location and change the time by inputting the value.

2.6.1.2 System Info

Press UTILITY->System Info to view the instrument's system information, including:

 Startup Times  Model  Software Version  Hardware Version  Host ID  Serial Number

2.6.1.3 Interface

Press Utility ->Interface to view the instrument's remote control interface information, including:

1. LAN Setting

1) DHCP

Set the state of DHCP. Press UTILITY->Interface ->DHCP State, then press ENTER or knob to change the state. When the DHCP state is on, the network DHCP server will configure the IP address, subnet mask and gateway automatically according to the current network condition. When the DHCP state is off, the IP address, subnet mask and gateway will be configured by the user.

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2) IP Address

Configure the network IP address. Press UTILITY->Interface ->IP Address, then move the cursor to specified location and press numberkeys to input value, finally press ENTER to make the setup effective.

3) Subnet Mask

Configure the network subnet mask. Press UTILITY->Interface ->Subnet Mask, then move the cursor to specified location and press number keys to input value, finally press ENTER to make the setup effective.

4) Gateway

Configure the network subnet mask. Press UTILITY->Interface ->Gateway, then move the cursor to specified location and press number keys to input value, finally press ENTER to make the setup effective.

2. Web Setting

Set the web login password. Press UTILITY->Interface ->Web PasswordSetting, to enter the current password. After correctly entering the password, a new password can be set in New Password. Then make the setup effective by entering the new password again in Confirm Password. If the password needs to be reset to default, just click the Reset to default button. (The default pass word is ―siglent‖.)

3. GPIB Setting

Set the GPIB address from 1 to 30. SSG3000X must use the SIGLENT USB-GPIB interface (optional) connected to the USB Host port located on the rear panel.

Press UTILITY->Interface ->GPIB Address, and then press number keys to input value,

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finally press ENTER to make the setup effective.

2.6.1.4 Self Test

1. Press Utility ->Self test to enter the self test menu, including:LCD Test

SSG3000X cycles through the red, green and blue pixels of the display to verify whether there are dot defects on the screen. Press UTILITY->Self-Test ->LCD Test, then press 7 to change the color and press 8 to exit.

2. Key Test

PressUTILITY->Self-Test ->Key Test, to enter the keyboard test interface. Press the function keys at the front panel one by one and observe whether the corresponding key is checked. If not, an error may have occurred in that key. To exit the test, press 8 three times or click the screen.

3. LED Test

Press UTILITY->Self-Test ->LED Test, to enter the LED test interface. Press 7 to light or extinguish the key light of the button MODON/OFF and RFON/OFF and press 8 to exit the test.

4. Board Test

Press UTILITY->Self-Test ->LEDTest, to enter the board test interface. Test whether writing and reading are normal for CPLD and FPGA.

5. Touch Screen Test

Press UTILITY->Self-Test ->TouchScreenTest, to enter the touch screen test interface. Click the marks on the interface to test the touch screen and press 8 to exit the test.

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2.6.1.5 Shutdown

Press UTILITY->Shutdown to power off the instrument according to operating hints on the interface.

2.6.1.6 Preset

Reset parameter settings according to the type of presetselected. Press UTILITY->Preset, to reset the parameters.

2.6.1.7 Update

Press UTILITY->Update, and select the update file. Then click Recall to update the system software. The progress bar will appear on the screen while updating and the instrument will restart automatically if updates succeed or pop-up prompt box if updates fail.

2.6.1.8 Option

Press Utility ->Option, to enter the option interface. Click the drop-down box under the

―Install‖ to choose the license type that you wish to install. Then, click on the text field

below the install type and use the touchscreen keypad to enter the license information.Click Install to finish the license installing.

If the installations succeed, the prompt message ―license was successfully installed‖ will

be pop-up. If not, the prompt message ―license was entered incorrectly‖ will be displayed. Note: The SSG comes with trial time for available options. The remaining number of trial use is displayed for each option at top of the option interface. When the remaining time of a certain function is zero, the function will be disabled. When a license is successfully

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installed for a certain function, the remaining times will be shown as ―--‖ and the type of the license is permanent, which means users have unrestricted access to the function.

2.6.1.9 Help

Press UTILITY->Help, to enter help interface and select the help items you need to view. You can jump to the related page by clicking underline texts, return to the help list by

clicking the icon , return to the last page by clicking the icon . And after returning to

last page, you can return to the original page by clicking the icon .

2.6.1.10 Contact Us

Press UTILITY->Contact Us to view the contact information for SIGLENT. You can contact us to solve the problems meet in practical use.You can also write

info@siglent.com or call your local SIGLENT sales office for support.

2.6.2 Store/Recall

Press UTILITY->Store/Recall to enter file management page. Then you can select file by knob and fold or expand folders by left and right direction key.

1. View Type

Click ViewType to change the type of files to show, including ―All', ―Data‖, ―State‖ and ―Update‖.

1) Data file:

 .lsw file: Sweep list data file;  .uft file: Flatness correction file;  .pulstrn file: Pulse train file.

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2) State file:

 .xml file: State saving file.

3) Update file:

 .CFG file: Configuration update file;  .ADS file: System update file.

2. New Dir

Click NewDir to create new folders. Press entering the name of a new file.

_____

𝐀 <> 𝑎

to switch the case of letter when

3. Rename

Click Rename to rename a file or folder.

4. Delete

Click Delete to delete the selected file.

5. Copy

Click Copy to copy the selected file or folder.

6. Paste

Click Paste to paste the copied file or folder to specified location.

7. Recall

Click Recall to load the selected file.

8. Save

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Click Save to save the file with corresponding type according to the type of data.

SIGLENT

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Manufacturer

Model

R&S (Rohde and Schwarz)

NRP6A USB Power Sensor

Keysight

U2000A Series USB Power Sensor

2.7 Power Sensor

The SSG3000X can be connected to a USB power sensor via the USB Host interface.For

the first connection, please refer to the ―Option‖ to activate the power meter software.

Then, connect the USB power sensor to the USB Host connector on the rear panel. If the

―Power sensor has been connected!‖ message pops up on the screen, the signal source

has successfully activated the power meter control option, and you can always use the power sensor function.

The power sensors currently supported by the SSG3000X are shown in the following table:

2.7.1 Power meter setting

The power sensor menu can be accessed in one of three ways:

 Click the power meter button on the shortcut menu.  Click on the power meter measurement control on the home page.  Switch menus by clicking the menu button or swiping in the Frequency, Level, or

Sweep menu.

2.7.1.1 Sensor Info

Indicate the type of a connected power sensor.The sensor type is automatically detected.

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2.7.1.2 Sensor State

The default is ―off‖. Activate/deactivate level measurement by the power sensor.

 On:Turn on the power sensor measurement function, and the measurement control

refreshes the power sensor measurement value in real time.

 Off:Turn off the power sensor measurement function.

2.7.1.3 Measurement

Indicate the current reading of the sensor. Select the unit used for result display. You can change the unit for the result display: dBm, dBμV, uV, mV, V, nW, uW, mW, W.

2.7.1.4 Level Control

With the Level Control function, you can achieve very stable and accurate RF power your DUT. With the aid of a downstream control circuit, a CLPC (Closed Loop Power Control), you can detect frequency response characteristics of the components: such as losses due to cables, modules or components and compensate these effects accordingly.

2.7.1.5 Statistics

The default is ―off‖.When activated, statisticsindicate the measured mean, maximum, minimum and the count of each measurement...  On:Turn on the statistics function.Each statistical parameter is displayed on the

parameter bar.Statistical parameters include average, minimum, maximum, and statistics.Click the ―Clear‖ button to clear all current statistics and start new statistics.

 Off:Turn off statistics.Statistical parameters will be hidden

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2.7.1.6 Auto Zero

When the power meter is zeroed, the zero measurement deviation and noise influence can be reduced, and the accuracy of the RF power measurement can be improved.

 Disable: The zero buttons will be hidden.  Internal Zeroing: In this way, the power sensor remains connected to the RF signal

during the zeroing process. Zero buttons is displayed.

 External Zeroing: When this mode is selected, you must remove the RF signal to be

measured before the power sensor can be zeroed. Otherwise it will affect the zeroing result. Zero buttons is displayed.

Press the ―Click to perform zeroing‖ button, and the instrument performs the zero

calibration operation of the power meter according to the ―zero calibration type‖ you

selected. This feature can be used to reduce the effects of noise and zero offset on the

measurement results. And the button name will change from ―Click to perform zeroing‖ to

―Zero In Progress...‖ After the zero adjustment is completed, the button name will be

restored to the word ―Click to perform zeroing‖.

Note: If the power meter does not have an internal or external zeroing option, the ―internal‖

and ―external‖ in the drop-down boxes are replaced by the ―Enable‖ option.

2.7.1.7 Measure Frequency

The default is ―Auto‖. Click the drop down box to switch the mode.

 Auto: In this mode, the instrument configures the frequency value based on the

output frequency of the RF.

 Manual: In this mode, the measurement frequency can be set by the touch screen

keyboard or the front panel keypad.

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2.7.1.8 Level Offset

The default is ―Off‖.Click the slide switch to switch the power offset switch status.

 On: The values can be set by the touch screen keyboard or front panel keypad.The

displayed value will be the actual measurement plus the offset.This feature makes measurements easier when there are amplifiers and attenuators in the middle of the signal chain.

 Off:The display is consistent with the actual reading of the power sensor.

2.7.1.9 Averaging Mode

The default is ―Auto‖.Click the slide switch to switch the averaging mode.

 Auto: Automatically configure the average number of times based on the current

parameters.Fixed noise parameter settings will be automatically hidden.

 Manual: Manually set the average number times, with the parameter are behind.  Fixed Noise:The power sensor will control the internal noise that does not exceed

the set value of the fixed noise parameter.Fixed noise parameter settings will be

displayed.It can be set by the touch screen keyboard or the front panel keypad. Note:If the power sensor does not have a ―fixed noise‖ mode, this option will not be displayed in the drop down box.

2.7.1.10 Logging

The default is ―Off‖. Click the slide switch to switch the logging.

 On:The source will record the measurements and save it in a log file.  Off:The signal source does not record the measurements.

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2.7.2 Level Control

As shown in the example, the sensor measures a proportional power in defined time intervals, derived from a coupler. It considers optionally the given S-parameters and returns the results to the generator. The signal generator compares the measured level with the set value and adjusts its output level accordingly.This allows you to control the external signal level continuously and reliably reach a constant input level at the DUT in real time.

In practice, an RF splitter is needed to split the RF signal.One of them is connected to the DUT and the other is connected to the power meter. The signal source is for acquisition and compensation.Power compensation can be used to minimize cable losses, the attenuation of passive networks, and the amplification of the signal by a power amplifier and the frequency response of each device in the link as the frequency changes.

Note: When the function is turned on, the frequency or level sweep and the power sensor measurement function will be turned off, and vice versa.

2.7.2.1 SensorState

The default is ―off‖. Activate/deactivate level measurement by the power sensor.

 On:Turn on the power sensor level control function, and the measurement control

refreshes the power sensor measurement value in real time.

 Off:Turn off the power sensor measurement function.

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2.7.2.2 Measurement

Indicate the current reading of the sensor. Select the unit used for result display. You can change the unit for the results display: dBm, dBμV, uV, mV, V, nW, uW, mW, W.

2.7.2.3 Target Level

Specify the nominal level expected at the input of the sensor. The signal generator adjusts the output power accordingly, in order to meet the target value at the sensor input, and thus the power required at the DUT. The value can be set by the touch screen keyboard or the front panel keypad.

2.7.2.4 Level Limit

Set an upper limit for the RF output power to protect your DUT from damage due to high input power. If the input RF signal power exceeds the limit, the set value will not take effect and the source will pop up a warning message.

2.7.2.5 Capture Range

The capture range means that if the power sensor reading is within the effective capture range, it is a valid reading and the RF signal is adjusted and compensated. Set the capture range of the control system.If the power sensor reading exceeds this range, the reading will be ignored. Effective Capture Range = Target Level +/- Catch Range

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2.8 I/Q Modulation

I/Q modulation, i.e. two orthogonal signals (carriers with the same frequency, phase difference of 90°, generally expressed by Sin and Cos) and I (In-Phase, in-phase component) and Q (Quadrature Phase) signals are respectively modulated by carrier and transmitted together, thereby improving spectrum utilization.

Note: Only some models are equipped with IQ modulation function. For specific models, please refer to the SSG3000X data sheet.

2.8.1 Turning on I/Q modulation

The I/Q modulation setup menu can be accessed in one of three ways:

 Click the Power Meter button on the shortcut menu page.  Click the I/Q modulation control on the home page.  Press the I/Q button on the front panel.

On the I/Q modulation interface, click on the I/Q status to turn on I/Q modulation.

2.8.2 I/Q source

The I/Q modulation uses an external modulation source that receives the I/Q modulated in-phase baseband signals and quadrature phase modulation signals input from the [I INPUT] and [Q INPUT] connectors on the rear panel.

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Parameter

Default

RF State

Off

Frequency

3.2GHz

Freq Offset

0Hz

Phase Offset

0deg

Level

-110dBm

Level Offset

0dB

ALC State

Auto

Flatness

Off

Sweep

Sweep State

Off

Sweep Mode

Continuous

Direction

Trigger Mode

Auto

Point Trigger

Auto

Trigger Slope

Positive

2.9 Shortcut Keys

2.9.1 Preset

Recall the preset setting and restore the signal generator to a specified status.

 Press UTILITY->Setting ->Preset Type to select ―Default‖ or ―User‖.  Press PRESET to load the factory settings listed in the following table or

User-defined settings.

Table 2-3 Default setting

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Step Sweep

Step Sweep State

Start Freq

3.2 GHz

Stop Freq

3.2 GHz

Start Level

-110dBm

Stop Level

-110dBm

Sweep Points

Dwell Time

30ms

Sweep Space

Linear

Sweep Shape

Sawtooth

List Sweep

List Sweep State

Off

MOD

MOD State

Off

AM State

Off

AM Source

Int

AM Shape

Sine

AM Rate

1kHz

AM Depth

50%

FM State

Off

FM Source

Int

FM Shape

Sine

FM Deviation

100kHz

FM Rate

10kHz

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PM State

Off

PM Source

Int

PM Shape

Sine

PM Rate

10kHz

PM Deviation

1rad

Pulse

Pulse State

Off

Pulse Source

Int

Pulse Mode

Single

Pulse Period

10ms

Pulse Width

2ms

Double Pulse Delay

4ms

#2 Width

2ms

Trigger Out

Pulse Trigger

Auto

Trig Delay

140 ns

Trig Slop

Positive

Pulse Polarity

Normal

Pulse Out

Off

Trig Polarity

Normal

Pulse Train

Off

LF State

Off

LF Shape

Sine

LF Frequency

1kHz

LF Level

500mV

LF Offset

0uV

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LF Phase

0deg

LF Sweep

Sweep State

Off

Start Freq

500Hz

Stop Freq

1.5kHz

Center Freq

1kHz

Freq Span

1kHz

Sweep Time

Trigger Mode

Auto

Sweep Shape

Sawtooth

Trigger Mode

Linear

Direction

2.9.2 Home

Return to the home page.

2.9.3 Trigger

When the trigger mode of the sweep is key trigger, press this key once to trigger a sweep. When the trigger mode of the pulse is key trigger, press this key once to start a pulse modulation.

When the trigger mode of the LF sweep is key trigger, press this key once to trigger a LF sweep.

2.9.4 Esc/Close

Switch off the instrument from remote control to manual control. Quit the edit mode, if the edit mode is active.

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In dialog boxes that contain an ―Esc‖ button it closes the dialog box. Exit the current menu and return to the previous menu.

2.9.5 Mod ON/OFF

Enable/disable modulation on the RF output. When enabled, the backlight will light, the screen status bar MOD will change from gray to blue, and RF output modulation will be activated. Press this button again to disable modulation. When disabled, the backlight is off, all modulation is off, and the user interface status bar MOD changes from blue to gray.

2.9.6 RF ON/OFF

Enabled or Disable the RF output. When enabled, the backlight will light, the screen status bar RF will change from gray to blue, and the RF output will be enabled. Press this button again to disable modulation. When disabled, the backlight is off, RF output is off, and the user interface status bar RF changes from blue to gray.

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Chapter 3 Application Examples

3.1 Output RF signal

Output a RF signal with a frequency of 3GHz and amplitude of 0dBm from the RF OUTPUT 50 connector.

1. Restore factory settings

A) Press UTILITY or the touch screen to set System -> Setting -> Preset Type-> Default.

B) Press PRESET, or reset the system settings to perform reset operations. Make the frequency offset and the phase defaults 0.

2. Frequency setting

Press FREQ, and enter the 3GHz with the numeric keypad, or click the frequency on the touch screen to pop up the keypad to input 3GHz.

3. Level setting

Press LEVEL, and enter the 0dBm with the numeric keypad, or click the amplitude on the touch screen to pop up the keypad to input 0dBm on the keypad.

4. RF output

Press RF ON/OFF or press the HOME key back to the main interface, select the RF block, the white square on the left of ON to enable RF output. When enabled, the RF ON/OFF key backlight turns green and the RF state in the status bar changes to blue.

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3.2 Output a modulated signal

In this section, we will show how to enable modulation by configuring the SSG to output an AM modulated signal with the following characteristics: Carrier frequency is 1GHz, the carrier amplitude is -10dBm, the AM modulation depth is 80%, the modulation frequency is 10 kHz, and the modulation waveform is a sine wave.

1. Restore factory settings

A) Press UTILITY or the touch screen to set System -> Setting -> Preset Type-> Default.

B) Press PRESET or reset the system settings to perform reset operations. Make the frequency offset and the phase defaults 0.

2. Set the carrier frequency and the carrier amplitude A) Press FREQ and enter 1GHz with the numeric keypad, or click the frequency input box on the touch screen to pop up the keypad to input 1GHz on the keypad. B) Press LEVEL, type -10 dBm with the digital keyboard, or click on the amplitude input box on the touch screen, pop up the keyboard, and type – 10dBm on the keyboard;

3. Set the AM modulation parameters Press the MOD or click the MOD function block on the touchscreen to enter the amplitude modulation parameter setting interface. A) Set the modulation waveform to be a sine wave; B) Set the modulation depth to 80%; C) Set the modulation frequency to be 10 kHz; D) Set the AM state open;

4. Enable the RF modulation output

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Press MOD On/OFF and then press RF ON/OFF. The backlights of MOD On/OFF and RF ON/OFF will be illuminated. RF and MOD labels in the status bar will change from

gray to blue. At this time, the signal on the [RF OUTPUT 50Ω ] connector will match the settings configured above.

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Serial

number

Positive pulse

width

Negative pulse

width

Repetitions

10ms

30ms

20ms

3.3 Output a pulse train

A pulse train is a user-defined sequence of high and low RF levels with specific time durations for each part. In this example, we will show how to configure the RF source to output the following pulse train:

1. Restore the factory default settings A) Press UTILITY or the touch Preset Type-> Default.

B) Press PRESET or reset the system settings to perform the reset operation. Make the frequency offset and the phase defaults 0.

2. Install thepulse train option Activate the pulse train generator option.

3. Edit pulse list A) Press MOD or select MOD from the Home page. You can swipe left or right or press MOD repeatedly to reach the Pulse Mode screen. Set Pulse Mode to Train, and the Pulse Train menu will appear.

B) Click in Pulse Train menu to enter settings, set the positive width of first pulse to 10ms, the negative width to 30ms, and the count to 1.

C) Click the ―+‖ on the left to add one line, set the positive pulse width to 20ms, the

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negative pulse width to 20ms, and the count to 2.

D) After clicking, you can click on the left side to see the schematic diagram of the pulse train as follows.

4.Set the Pulse State to on.

5.Enable the RF modulation output Press MOD On/OFF and then press RF ON/OFF. The backlights of MOD On/OFF and RF ON/OFF will be illuminated. RF and MOD labels in the status bar will change from gray to blue. At this time, the signal on the [RF OUTPUT 50Ω ] connector will match the settings configured above

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3.4 Output IQ modulated signal

The external modulation function (optional) of the SSG3000X and the SDG6000X series arbitrary waveform generator can be used as the baseband source to generate an IQ modulated signal. The following steps describe how to generate an IQ modulated signal with a modulation mode of 32QAM. Users can modify and configure IQ modulation related parameters according to actual application requirements.

1. Connect the output interface of the SDG6000X to the external modulation interface of the SSG3000X;

2. Open the EasyIQ software, configure it as shown below, and download the baseband data to the SDG6000X;

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3. As shown in the figure below, configure the SSG3000X and SDG6000X separately, and then enable the output of the SDG6000X, the IQ, MOD and RF output of the SSG3000X;

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4. At this time, the RF interface of the SSG3000X outputs an IQ modulation signal with a modulation mode of 32QAM, and the IQ modulation signal is connected to an IQ demodulation device to observe the demodulation characteristics of the IQ modulation signal;

Note: IQ compensation can be performed through theI/Q adjustment menu of the SDG6000X. For example, when the IQ modulation signal shows a significant local oscillator leakage, it can be solved by alternately adjusting the Offset of I and Q.

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3.5 Test the OIP3 of Active Devices with the

SSG3000X

OIP3 is a key indicator for evaluating the linearity of active devices. This can be tested using the SSG3000X with the SDG6000X series of arbitrary waveform generators. The following steps describe how to generate a two-tone continuous wave signal with a carrier frequency of 1 GHz and an interval frequency of 1 MHz to test the OIP3 of the active device.

1. Connect the output interface of the SDG6000X to the external modulation interface of the SSG3000X;

2. Open the EasyIQ software, configure it as shown below, and download the Multitone data to the SDG6000X;

3. Configure the SSG3000X and SDG6000X as shown below, then open the output of the SDG6000X, the IQ, MOD and RF output of the SSG3000X;

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4. At this time, the RF interface of the SSG3000X outputs a two-tone continuous wave signal with a carrier frequency of 1 GHz and an interval frequency of 1 MHz. The signal is used as the input of the active device, and the output signal is tested to obtain the OIP3 characteristic as shown in the following figure.

Note: IQ compensation can be performed through the I/Q Adjustment menu of the SDG6000X. For example, when the IQ modulation signal shows a significant local

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oscillator leakage, it can be solved by alternately adjusting the Offset of I and Q.

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