RIGOL DG821 Pro, DG822 Pro, DG852 Pro User guide

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Guaranty and Declaration

Trademark Information

RIGOL®is the trademark of RIGOL TECHNOLOGIES CO., LTD.

Notices

• RIGOL products are covered by P.R.C. and foreign patents, issued and pending.

• RIGOL reserves the right to modify or change parts of or all the specifications and pricing

policies at the company's sole decision.

• Information in this publication replaces all previously released materials.

• Information in this publication is subject to change without notice.

• RIGOL shall not be liable for either incidental or consequential losses in connection with the

furnishing, use, or performance of this manual, as well as any information contained.

• Any part of this document is forbidden to be copied, photocopied, or rearranged without prior

written approval of RIGOL.

Product Certification

RIGOL guarantees that this product conforms to the national and industrial standards in China as well as the ISO9001:2015 standard and the ISO14001:2015 standard. Other international standard conformance certifications are in progress.

If you have any problem or requirement when using our products or this manual, please contact RIGOL.

E-mail: [email protected]

Website:

http://www.rigol.com

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Section Description Page

List of Figures................................................................................................................................IV

List of Tables..................................................................................................................................VI

1 Safety Requirement .........................................................................................................1

1.1 General Safety Summary .................................................................................................................. 1

1.2 Safety Notices and Symbols ............................................................................................................ 3

1.3 Measurement Category .....................................................................................................................3

1.4 Ventilation Requirement ................................................................................................................... 4

1.5 Working Environment ........................................................................................................................4

1.6 Care and Cleaning ............................................................................................................................... 6

1.7 Environmental Considerations ........................................................................................................6

2 Product Features .............................................................................................................. 8

3 Document Overview ....................................................................................................... 9

4 Quick Start ........................................................................................................................11

4.1 General Inspection ............................................................................................................................11

4.2 Appearance and Dimensions ........................................................................................................ 11

4.3 To Prepare for Use .............................................................................................................................12

4.3.1 To Connect to Power ...........................................................................................................12

4.3.2 Turn-on Checkout ................................................................................................................ 13

4.3.3 To Set the System Language ............................................................................................14

4.4 Product Overview ..............................................................................................................................14

4.4.1 Front Panel Overview ..........................................................................................................14

4.4.2 Rear Panel Overview ........................................................................................................... 17

4.4.3 User Interface Overview .................................................................................................... 20

4.5 Touch Screen Gestures .................................................................................................................... 22

4.5.1 Tap ............................................................................................................................................. 22

4.5.2 Drag .......................................................................................................................................... 23

4.6 Parameter Setting Method ............................................................................................................ 23

4.6.1 To Set Parameters with the Front-panel Keys and Knobs ...................................... 23

4.6.2 To Set Parameters with the Touch Screen ....................................................................25

4.7 To Use the Built-in Help System ...................................................................................................29

4.8 To View the Option Information and Install the Option ......................................................29

5 Continuous .......................................................................................................................31

5.1 To Output Sine Wave .......................................................................................................................32

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5.2 To Output Square Wave ..................................................................................................................34

5.3 To Output Ramp Wave ....................................................................................................................36

5.4 To Output Pulse ................................................................................................................................. 38

5.5 To Output Noise ................................................................................................................................ 41

5.6 To Output Arbitrary Waveforms ...................................................................................................42

5.7 To Output Harmonic ........................................................................................................................ 50

6 Modulation ...................................................................................................................... 54

6.1 Amplitude Modulation (AM) .........................................................................................................54

6.2 Frequency Modulation (FM) ..........................................................................................................56

6.3 Phase Modulation (PM) .................................................................................................................. 58

6.4 Amplitude Shift Keying (ASK) ....................................................................................................... 59

6.5 Frequency Shift Keying (FSK) ........................................................................................................ 61

6.6 Phase Shift Keying (PSK) .................................................................................................................62

6.7 Pulse Width Modulation (PWM) ..................................................................................................63

6.8 SUM Modulation ............................................................................................................................... 65

7 Sweep .................................................................................................................................67

7.1 Sweep Type ......................................................................................................................................... 67

7.2 Start Frequency and Stop Frequency ......................................................................................... 69

7.3 Center Frequency and Frequency Span .....................................................................................69

7.4 Sweep Time .........................................................................................................................................70

7.5 Start/Stop Hold Time .......................................................................................................................71

7.6 Return Time .........................................................................................................................................71

7.7 Sweep Trigger Source ......................................................................................................................72

7.8 Mark Frequency .................................................................................................................................72

8 Burst ................................................................................................................................... 74

8.1 Burst Type ............................................................................................................................................75

8.2 Burst Delay .......................................................................................................................................... 76

8.3 Burst Phase ..........................................................................................................................................76

8.4 Burst Period .........................................................................................................................................77

8.5 Burst Trigger Source .........................................................................................................................77

8.6 Gated Polarity .....................................................................................................................................78

8.7 Idle Level .............................................................................................................................................. 78

9 Advanced Mode .............................................................................................................80

9.1 Arb ..........................................................................................................................................................81

9.2 Sequence ..............................................................................................................................................82

9.2.1 To Edit Sequence ..................................................................................................................83

9.2.2 To Save/Load Sequence .....................................................................................................84

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9.2.3 To Set Sequence Parameters ............................................................................................85

10 Frequency Counter ........................................................................................................86

10.1 To Enable the Counter .....................................................................................................................87

10.2 To Set the Counter ............................................................................................................................87

10.3 Statistical Function ............................................................................................................................88

11 Channel Copy ..................................................................................................................90

12 Channel Setup .................................................................................................................93

12.1 Sync Signal Setup ..............................................................................................................................93

12.2 Trigger Output Setup .......................................................................................................................95

12.3 Channel Output Setup .....................................................................................................................96

13 Coupling Setup ...............................................................................................................98

14 Align Phase ....................................................................................................................101

15 Storage Management ................................................................................................102

15.1 To Select the File ............................................................................................................................. 102

15.2 To Transfer Files with FTP ............................................................................................................. 103

15.3 To Create New Folder ....................................................................................................................105

15.4 Cut and Copy ................................................................................................................................... 105

15.5 Rename ...............................................................................................................................................105

15.6 Delete ..................................................................................................................................................105

16 Upgrade ..........................................................................................................................106

17 System Utility Function Setting ..............................................................................107

17.1 I/O Setting .........................................................................................................................................107

17.2 LXI .........................................................................................................................................................109

17.3 Basic Settings ................................................................................................................................... 109

17.4 About this Instrument ...................................................................................................................111

17.5 Print Screen .......................................................................................................................................112

17.6 Option .................................................................................................................................................113

17.7 Open Source Acknowledgment .................................................................................................113

17.8 Self-check .......................................................................................................................................... 113

18 Preset Function ............................................................................................................ 114

19 Remote Control ............................................................................................................119

20 Troubleshooting ...........................................................................................................120

21 Appendix ........................................................................................................................ 122

21.1 Appendix A: Options and Accessories .................................................................................... 122

21.2 Appendix B: Warranty ................................................................................................................... 122

III

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List of Figures

Figure 4.1 Front View ..............................................................................................................11

Figure 4.2 Side View ................................................................................................................12

Figure 4.3 Connect to Power ............................................................................................... 13

Figure 4.4 Front Panel ............................................................................................................ 14

Figure 4.5 Rear Panel ..............................................................................................................17

Figure 4.6 User Interface .......................................................................................................20

Figure 4.7 Tap Gesture ........................................................................................................... 23

Figure 4.8 Drag Gesture .........................................................................................................23

Figure 4.9 English Input Interface ......................................................................................26

Figure 4.10 Chinese Input Interface .................................................................................. 27

Figure 4.11 Numeric Keypad ................................................................................................28

Figure 5.1 Continuous Setting Interface ..........................................................................31

Figure 5.2 Harmonic Setting Interface ............................................................................. 51

Figure 5.3 Table Editing Menu .............................................................................................52

Figure 6.1 Modulation Setting Interface ..........................................................................54

Figure 7.1 Sweep Setting Interface ....................................................................................67

Figure 7.2 Linear Sweep .........................................................................................................68

Figure 7.3 Logarithmic Sweep .............................................................................................68

Figure 7.4 Step Sweep ............................................................................................................69

Figure 8.1 Burst Setting Interface ...................................................................................... 74

Figure 9.1 Advanced Waveform Setting Interface ....................................................... 80

Figure 9.2 Arb Setting Interface ..........................................................................................81

Figure 9.3 Sequence Setting Interface ............................................................................. 83

Figure 9.4 Sequence Editing Table .....................................................................................83

Figure 10.1 Counter Menu ....................................................................................................86

Figure 10.2 Counter Statistical Interface ..........................................................................89

Figure 12.1 Channel Setup Interface .................................................................................93

DG800 Pro User Guide

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Figure 13.1 "Coupling" Menu ..............................................................................................98

Figure 14.1 Before Aligning Phase ..................................................................................101

Figure 14.2 After Aligning Phase ..................................................................................... 101

Figure 15.1 Create Session .................................................................................................104

Figure 18.1 Preset Menu .....................................................................................................114

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List of Tables

Table 4.1 Power Adaptor Specifications ...........................................................................13

Table 5.1 Range of Continuous Waveform Frequency ................................................32

Table 5.2 Built-in Waveforms ............................................................................................... 43

Table 11.1 Dual-channel operation parameters ............................................................90

Table 12.1 Sync Signal of Different Output Modes (Positive Polarity) .................. 94

Table 18.1 Factory Settings ................................................................................................ 115

DG800 Pro User Guide

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Safety Requirement

1.1 General Safety Summary

Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injury or damage to the instrument and any product connected to it. To prevent potential hazards, please follow the instructions specified in this manual to use the instrument properly.

• Use the BNC Output Connectors Properly.

The front-panel BNC output connectors only allow signal output but unable to support signal input.

• Use Proper Power Cord.

Only the exclusive power cord designed for the instrument and authorized for use within the destination country could be used.

• Ground the Product Properly.

The instrument uses the Type-C power interface. The instrument is not grounded via the power cord. To avoid electric shock, use the ground cable provided in accessories to connect the instrument to the earth ground before connecting any input or output terminals.

• Observe All Terminal Ratings.

To avoid fire or shock hazard, observe all ratings and markers on the instrument and check your manual for more information about ratings before connecting the instrument.

• Use Proper Overvoltage Protection.

Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach the product. Otherwise, the operator might be exposed to the danger of an electric shock.

• Do Not Operate Without Covers.

Do not operate the instrument with covers or panels removed.

• Do Not Insert Objects into the Air Outlet.

Do not insert objects into the air outlet, as doing so may cause damage to the instrument.

• Avoid Circuit or Wire Exposure.

Do not touch exposed junctions and components when the instrument is powered on.

• Do Not Operate With Suspected Failures.

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Safety Requirement

• Provide Adequate Ventilation.

• Do Not Operate in Wet Conditions.

• Do Not Operate in an Explosive Atmosphere.

If you suspect that any damage may occur to the instrument, have it inspected by RIGOL authorized personnel before further operations. Any maintenance, adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel.

Inadequate ventilation may cause an increase of temperature in the instrument, which would cause damage to the instrument. So please keep the instrument well ventilated and inspect the air outlet and the fan regularly.

To avoid short circuit inside the instrument or electric shock, never operate the instrument in a humid environment.

To avoid personal injuries or damage to the instrument, never operate the instrument in an explosive atmosphere.

• Keep Instrument Surfaces Clean and Dry.

To avoid dust or moisture from affecting the performance of the instrument, keep the surfaces of the instrument clean and dry.

• Prevent Electrostatic Impact.

Operate the instrument in an electrostatic discharge protective environment to avoid damage induced by static discharges. Always ground both the internal and external conductors of cables to release static before making connections.

• Use the Battery Properly.

Do not expose the battery (if available) to high temperature or fire. Keep it out of the reach of children. Improper change of a battery (lithium battery) may cause an explosion. Use the RIGOL specified battery only.

• Handle with Caution.

Please handle with care during transportation to avoid damage to keys, knobs, interfaces, and other parts on the panels.

WARNING

Equipment meeting Class A requirements may not offer adequate protection to broadcast

services within residential environment.

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1.2 Safety Notices and Symbols

Safety Notices in this Manual:

WARNING

Indicates a potentially hazardous situation or practice which, if not avoided, will result in

serious injury or death.

CAUTION

Indicates a potentially hazardous situation or practice which, if not avoided, could result

in damage to the product or loss of important data.

Safety Notices on the Product:

• DANGER

Safety Requirement

It calls attention to an operation, if not correctly performed, could result in injury or hazard immediately.

• WARNING

It calls attention to an operation, if not correctly performed, could result in potential injury or hazard.

• CAUTION

It calls attention to an operation, if not correctly performed, could result in damage to the product or other devices connected to the product.

Safety Symbols on the Product:

Hazardous

Voltage

Safety Warning Protective Earth

1.3 Measurement Category

Chassis Ground Test Ground

Terminal

Measurement Category

This instrument can make measurements in Measurement Category I.

WARNING

This instrument can only be used for measurements within its specified measurement

categories.

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Safety Requirement

Measurement Category Definitions

• Measurement category I is for measurements performed on circuits not directly

• Measurement category II is for measurements performed on circuits directly

• Measurement category III is for measurements performed in the building

connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits. In the latter case, transient stresses are variable. Thus, you must know the transient withstand capability of the equipment.

connected to low voltage installation. Examples are measurements on household appliances, portable tools and similar equipment.

installation. Examples are measurements on distribution boards, circuit-breakers, wiring (including cables, bus-bars, junction boxes, switches and socket-outlets) in the fixed installation, and equipment for industrial use and some other equipment. For example, stationary motors with permanent connection to a fixed installation.

• Measurement category IV is for measurements performed at the source of a

low-voltage installation. Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units.

1.4 Ventilation Requirement

This instrument uses a fan to force cooling. Please make sure that the air inlet and outlet areas are free from obstructions and have free air. When using the instrument in a bench-top or rack setting, provide at least 10 cm clearance beside, above and behind the instrument for adequate ventilation.

CAUTION

Inadequate ventilation may cause an increase of temperature in the instrument, which

would cause damage to the instrument. So please keep the instrument well ventilated and

inspect the air outlet and the fan regularly.

1.5 Working Environment

Temperature

Operating: 0℃ to +40℃

Non-operating: -20℃ to +60℃

Humidity

• Operating:

DG800 Pro User Guide

0℃ to +40℃: ≤80% RH (without condensation)

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Safety Requirement

• Non-operating:

-20℃ to +40℃: ≤90% RH (without condensation)

Below +60℃: ≤80% RH (without condensation)

WARNING

To avoid short circuit inside the instrument or electric shock, never operate the

instrument in a humid environment.

Altitude

• Operating: below 3 km

• Non-operating: below 12 km

Protection Level Against Electric Shock

ESD ±8kV

Installation (Overvoltage) Category

This product is powered by mains conforming to installation (overvoltage) category II.

WARNING

Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach the

product. Otherwise, the operator might be exposed to the danger of an electric shock.

Installation (Overvoltage) Category Definitions

Installation (overvoltage) category I refers to signal level which is applicable to equipment measurement terminals connected to the source circuit. Among these terminals, precautions are done to limit the transient voltage to a low level.

Installation (overvoltage) category II refers to the local power distribution level which is applicable to equipment connected to the AC line (AC power).

Pollution Degree

Pollution Degree 2

Pollution Degree Definition

• Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs.

The pollution has no effect. For example, a clean room or air-conditioned office environment.

• Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary

conductivity caused by condensation is to be expected. For example, indoor environment.

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Safety Requirement

• Pollution Degree 3: Conductive pollution or dry nonconductive pollution that

becomes conductive due to condensation occurs. For example, sheltered outdoor environment.

• Pollution Degree 4: The pollution generates persistent conductivity caused by

conductive dust, rain, or snow. For example, outdoor areas.

Safety Class

Class 2

1.6 Care and Cleaning

Care

Do not store or leave the instrument where it may be exposed to direct sunlight for long periods of time.

Cleaning

Clean the instrument regularly according to its operating conditions.

1. Disconnect the instrument from all power sources.

2. Clean the external surfaces of the instrument with a soft cloth dampened with mild

detergent or water. Avoid having any water or other objects into the chassis via the heat dissipation hole. When cleaning the LCD, take care to avoid scarifying it.

CAUTION

To avoid damage to the instrument, do not expose it to caustic liquids.

WARNING

To avoid short-circuit resulting from moisture or personal injuries, ensure that the

instrument is completely dry before connecting it to the power supply.

1.7 Environmental Considerations

The following symbol indicates that this product complies with the WEEE Directive 2012/19/EU.

The equipment may contain substances that could be harmful to the environment or human health. To avoid the release of such substances into the environment and avoid harm to human health, we recommend you to recycle this product

DG800 Pro User Guide

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Safety Requirement

appropriately to ensure that most materials are reused or recycled properly. Please contact your local authorities for disposal or recycling information.

You can click on the following link

https://int.rigol.com/services/services/declaration

to download the latest version of the RoHS&WEEE certification file.

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Product Features

• Max. sample rate: 625 MSa/s

• Max. output frequency: 50 MHz

• 16-bit vertical resolution

• Arbitrary waveform editing function with a max. Arb waveform length of 2

Mpts/CH (8 Mpts/CH optional)

• Built-in high-order harmonic generator (max. 20th order)

• Independent signal frequency measurement channel with a max. frequency of

500 MHz

• USB and LAN interfaces for remote connection

• Type-C power interface for powering the instrument with mobile power source,

satisfying testing requirements in the field

• Standard Web Control function for easier remote cooperation

DG800 Pro series Function/Arbitrary Waveform Generator provides up to 625 MSa/s sample rate and 2 Mpts/CH memory depth (standard). It is a cost-effective function/ arbitrary waveform generator that combines multiple functions including Function Generator, Arbitrary Waveform Generator, Noise Generator, Pulse Generator, Harmonic Generator, Analog/Digital Modulator and Counter.

DG800 Pro User Guide

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Document Overview

This manual gives you a quick overview of the front and rear panels, user interface as well as basic operation methods of DG800 Pro series function/arbitrary waveform generator.

TIP

For the latest version of this manual, download it from RIGOL official website (

Publication Number

UGB14102-1110

Software Version

00.02.01

Software upgrade might change or add product features. Please acquire the latest version of the manual from RIGOL website or contact RIGOL to upgrade the software.

Format Conventions in this Manual

www.rigol.com

1. Key

The front panel key is denoted by the menu key icon. For example, indicates the "Default" key.

2. Menu

The menu item is denoted by the format of "Menu Name (Bold) + Character Shading" in the manual, for example,

3. Operation Procedures

The next step of the operation is denoted by ">" in the manual. For example,

> Utility indicates first clicking or tapping and then clicking or tapping Utility.

Content Conventions in this Manual

DG800 Pro series function/arbitrary waveform generator includes the following models. Unless otherwise specified, this manual takes the two-channel model DG852 Pro as an example to illustrate the functions and operation methods of DG800 Pro series.

Setup.

Model No. of Channels Sample Rate

DG821 Pro 1 625 MSa/s 25 MHz

Max. Output Frequency

Page 18

Document Overview

Model No. of Channels Sample Rate

Max. Output Frequency

DG822 Pro 2 625 MSa/s 25 MHz

DG852 Pro 2 625 MSa/s 50 MHz

DG800 Pro User Guide

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Quick Start

4.1 General Inspection

1. Inspect the packaging

If the packaging has been damaged, do not dispose the damaged packaging or cushioning materials until the shipment has been checked for completeness and has passed both electrical and mechanical tests.

The consigner or carrier shall be liable for the damage to the instrument resulting from shipment. RIGOL would not be responsible for free maintenance/rework or replacement of the instrument.

2. Inspect the instrument

In case of any mechanical damage, missing parts, or failure in passing the electrical and mechanical tests, contact your RIGOL sales representative.

3. Check the accessories

Please check the accessories according to the packing lists. If the accessories are damaged or incomplete, please contact your RIGOL sales representative.

Recommended Calibration Interval

RIGOL suggests that the instrument should be calibrated every 12 months.

4.2 Appearance and Dimensions

266 mm

165 mm

Figure 4.1 Front View

Page 20

Quick Start

80 mm

Figure 4.2 Side View

4.3 To Prepare for Use

4.3.1 To Connect to Power

The power requirements of this signal source are USB PD 15 V, 3 A. Please use the power adaptor provided in the accessories to connect the instrument to the AC power source (100 V to 240 V, 50 Hz to 60 Hz), as shown in the figure below. Apart from the instrument's standard power adaptor, this instrument also supports the power adaptor that conforms to the PD (Power Delivery) protocol. However, the adaptor should support 15 V 3 A 45 W output.

After the power is connected, the backlight of the front-panel power key can have the following three states:

• Breathing Red: indicates that the instrument is connected to a compliant power

adaptor and is in standby state. At this time, you can press the power key to power on the instrument.

• Solid Yellow: indicates that the instrument does not detect a compliant power

adaptor and cannot be powered on.

• Solid Green: indicates that the instrument is running normally.

DG800 Pro User Guide

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Power Connector

Figure 4.3 Connect to Power

Quick Start

Table 4.1 Power Adaptor Specifications

Item Description

Input 100 V to 240 V, 50 Hz to 60 Hz, 1.6 A Max

Output USB PD 15 V, 3 A, 45 W

CAUTION

The power adaptor provided in accessories can only be used to power RIGOL instruments.

Do not use it for mobile phone and other devices.

WARNING

To avoid electric shock, please ensure that the instrument is correctly grounded.

4.3.2 Turn-on Checkout

After the instrument is connected to the power source, press at the lower-left corner of the front panel to power on the instrument. During the start-up process, the instrument performs a series of self-tests. After the self-test, the splash screen is

displayed. You can also click or tap

> Utility > Setup to set the "Power Set" to

"Auto". The instrument powers on once connected to power.

TIP

You can shut down the instrument in the following ways.

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Quick Start

• Click or tap > Shut Down or press the front-panel and a dialog box "Do you

need to shut down the instrument?" is displayed. Click or tap Shut Down to shut down

the instrument.

• Press twice to shut down the instrument.

• Press for three seconds to shut down the instrument.

4.3.3 To Set the System Language

The instrument supports system languages including Chinese and English. You can

click or tap > Utility > Setup to enter the basic settings menu. Then click or tap the drop-down button of Language to set the system language to Simplified Chinese, Traditional Chinese, or English.

4.4 Product Overview

This chapter introduces the appearance and dimensions, front and rear panels as well as the user interface (display) of the DG800 Pro series by taking DG852 Pro as an example.

4.4.1 Front Panel Overview

5 6

DG800 Pro User Guide

Figure 4.4 Front Panel

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Quick Start

1. 7-inch Touch Screen

Displays the menu labels, parameter settings, system state, prompt messages, and other information.

2. Output Mode Selection Area

- : Modulation key. Press the key to set the output mode to Modulation for

the current channel. Available modulated signals include AM, FM, PM, SUM, ASK, FSK, PSK, and PWM signals. For details about the Modulation mode, please refer to

- : Sweep key. Press the key to set the output mode to Sweep for the

current channel. For details about the Sweep mode, please refer to

- : Burst key. Press the key to set the output mode to Burst for the current

channel. For details about the Burst mode, please refer to

Modulation

Sweep

Burst

3. Basic Waveform Selection Area

- : Sine key. Press the key to set the basic waveform to Sine for the current

channel. For details about the Sine waveform, please refer to

Wave

current channel. For details about the Square waveform, please refer to

Output Square Wave

current channel. For details about the Pulse waveform, please refer to

Pulse

- : Ramp key. Press the key to set the basic waveform to Ramp for the

current channel. For details about the Ramp waveform, please refer to

Output Ramp Wave

- : Arb key. Press the key to set the basic waveform to Arb for the current

channel. For details about Arb, please refer to

: Square key. Press the key to set the basic waveform to Square for the

: Pulse key. Press the key to set the basic waveform to Pulse for the

To Output Arbitrary Waveforms

To Output Sine

To Output

- : Noise key. Press the key to set the basic waveform to Noise for the

current channel. For details about the Noise, please refer to

4. Parameter Input Area

The parameter input area comprises a knob, a numeric keypad, unit keys, and arrow keys. For details about the parameter input method, please refer to

Parameter Setting Method

5. Quick Operation Keys

To Output Noise

Page 24

Quick Start

: Utility/Local key. Press the key to enter the system utility function setting menu to set the remote interface parameters and system functions. You can also check the instrument information. When the instrument is in remote control mode, you can press this key to restore the instrument to local operation from remote control.

: Touch Off key. Press the key to disable or enable the touch screen function.

: Save/Recall key. Press the key to open or close the Store menu.

: Default key. Press the key and a dialog box is displayed. Click or tap OK to restore the instrument to its factory defaults.

6. Manual Trigger Key

When the instrument is set to manual trigger for Sweep/Burst mode, a sweep/

burst output will be triggered manually each time you press

7. Counter Control Area

: Counter menu key. Press the key to open the counter menu.

: Counter On/Off Key. Press the key to enable or disable the Counter function. When the Counter function is enabled, the backlight of the key is illuminated; when the Counter function is disabled, the backlight is off.

8. Input Connector for the Signal Measured by Counter

BNC type connector. It is used to accept the signal measured by the counter.

9. Channel Output Control Area

: CH1 selection key. Press the key to select CH1 as the current channel. You can set the waveforms, parameters and others for CH1 with the front-panel keys and knob. When CH1 is selected, the backlight of the key is illuminated.

: CH2 selection key. Press the key to select CH2 as the current channel. You can set the waveforms, parameters and others for CH2 with the front-panel keys and knob. When CH2 is selected, the backlight of the key is illuminated.

10. Align Key

DG800 Pro User Guide

: Channel on/off key. Press the key to enable or disable the corresponding channel output. When the channel output is enabled, the backlight of the corresponding key is illuminated.

Press

to align phase. For details, refer to

Align Phase

Page 25

Quick Start

11. CH2 Output Connector

BNC type connector with 50 Ω nominal output impedance. When the CH2 output is enabled, the CH2 output connector outputs the waveform in the current configuration.

12. CH1 Output Connector

BNC type connector with 50 Ω nominal output impedance. When the CH1 output is enabled, the CH1 output connector outputs the waveform in the current configuration.

13. USB HOST Interface

Reads the waveform or state files stored in the USB storage device; saves the current instrument states or edited waveform data into the USB, or saves the content displayed on the screen to the USB in the format of a captured image. FAT32, NTFS, and exFAT formats are supported.

14. Power Key

Powers the signal generator on or off.

4.4.2 Rear Panel Overview

Figure 4.5 Rear Panel

1. [CH2 AUX IN/OUT]

BNC female connector. Its function is determined by the current work mode of CH2.

- Sync output: When the Sync output of CH2 is enabled, this connector outputs

the corresponding sync signal that matches the current configuration of CH2.

Page 26

Quick Start

For details about the characteristics of the sync signals corresponding to various output signals, please refer to

Sync Signal Setup

- Modulation input: when an external modulation source is selected for CH2,

this connector accepts an external modulation signal. For details about external modulation, please refer to

Modulation

- Trigger input: when the Sweep or Burst mode is selected for CH2 and an

external trigger source is selected, this connector accepts an external signal as the trigger signal of CH2. The polarity of the signal can be set.

- Trigger output: when the Sweep or Burst mode is selected for CH2 and the

trigger output is enabled, this connector outputs a trigger signal with a specified edge type.

2. [CH1 AUX IN/OUT]

BNC female connector. Its function is determined by the current work mode of CH1.

- Sync output: When the Sync output of CH1 is enabled, this connector outputs

the corresponding sync signal that matches the current configuration of CH1. For details about the characteristics of the sync signals corresponding to various output signals, please refer to

Sync Signal Setup

- Modulation input: when an external modulation source is selected for CH1,

this connector accepts an external modulation signal. For details about external modulation, please refer to

Modulation

- Trigger input: when the Sweep or Burst mode is selected for CH1 and an

external trigger source is selected, this connector accepts an external signal as the trigger signal of CH1. The polarity of the signal can be set.

- Trigger output: When the Sweep or Burst mode is selected for CH1 and the

trigger output is enabled, this connector outputs a trigger signal with a specified edge type.

3. [10 MHz In/Out]

BNC female connector. Its function is determined by the clock type used by the instrument.

- When internal clock source is selected, this connector (as 10 MHz Out) outputs

the 10 MHz clock signal generated by the internal crystal oscillator inside the generator.

4. LAN

DG800 Pro User Guide

- When external clock source is selected, this connector (as 10 MHz In) accepts an

external clock signal.

This connector is usually used to synchronize multiple instruments. For clock source settings, refer to

Basic Settings

Page 27

Quick Start

Connect the instrument to network via this interface. The instrument conforms to LXI CORE 2011 DEVICE instrument standard. Its test system can be built quickly. Then you can control the instrument by using the Web Control, sending SCPI commands via PC software, or use the user-defined programming.

5. USB DEVICE

Connect the instrument to the PC via this interface. Then you can use the PC software to send SCPI commands or use the user-defined programming to control the instrument.

6. USB Type-C Power Socket

The power requirements of the instrument are USB PD, 15 V, 3 A. Please use the power adaptor provided in the accessories to connect the instrument to the AC power source (100 V to 240 V, 50 Hz to 60 Hz).

7. Security Lock Hole

Use a standard PC/laptop lock cable to secure the instrument to a work bench or other location.

8. Ground Terminal

Connect the instrument chassis to the ground using the lead.

9. Mounting Screw Holes

Interval of screw holes: 100 mm x 100 mm. Use screws (M4*6-10) to secure the instrument to the bracket with the same screw hole interval.

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Quick Start

4.4.3 User Interface Overview

Figure 4.6 User Interface

1. Wave Type Drop-down Button

Click or tap the drop-down button to select the waveform type for the specified channel. Available waveform types are related to the current output mode. Note that the basic waveforms are not available when the output mode is set to "Advanced".

2. Output Mode Drop-down Button

Click or tap the drop-down button to set the output mode to Continuous, Modulation, Sweep, Burst, or Advanced for the specified channel.

3. Parameter Configuration Area

You can set the waveform parameters and channel parameters for the corresponding channel in this area. When the counter is on, the CH2 configuration area is used to set the counter parameters.

4. Notification Area

Displays the USB icon, LAN icon, sound icon, and remote control icon. You can click or tap this area to open the "Utility" menu.

DG800 Pro User Guide

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Quick Start

- USB storage device icon: When a USB storage device is detected, will be

displayed.

- LAN icon: When the LAN interface is successfully connected, is displayed.

- Sound icon: In the "Utility" menu, click or tap Setup > Beeper to enable or

disable the sound. When on,

will be displayed; when off, will be

displayed.

- Remote control icon: When the instrument is in remote control mode, will

be displayed.

- Date and Time: When the "Show Time" is set to On, the system date and time

will be displayed.

5. Print Screen Key

Click or tap this key to capture the current screen and save the picture to internal memory.

6. Store/Recall Key

Click or tap the key to open the storage setting menu.

7. Align Phase Key

Click or tap the key to perform the phase alignment operation. For details, please refer to

Align Phase

8. Channel Copy Key

Click or tap this key to open the channel copy menu. You can copy all states and waveforms of one channel to the other one. For details, please refer to

Copy

Channel

9. Counter Label

Displays the frequency value and period value measured by the counter. When the counter is turned on, this label is illuminated and displays the frequency and period measured by the counter.

10. Channel Tab

Displays the sync on/off status and polarity for the corresponding channel. You can click or tap this tab to switch to the channel setup interface.

11. Channel Labels

Display the channel on/off state (the "CH1"/"CH2" is illuminated or not), the selected channel (the label is highlighted or not), the impedance, and invert on/off setting. You can click or tap the label to select the specified channel.

12. Function Navigation Icon

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Quick Start

Click or tap the icon to open the function navigation menu in which you can access the specified function menu by clicking or tapping the corresponding function key (Utility, Preset, Help, Coupling, Shut Down).

13. Waveform Tab

Displays the selected continuous waveform type, frequency, and amplitude. You can click or tap this tab to switch to the waveform parameter setting interface.

14. Channel Identifier

Identifies the area as CH1 ("1") or CH2 ("2") and indicates the on/off state of the channel. You can simply click or tap the area to enable or disable the corresponding channel output.

4.5 Touch Screen Gestures

The instrument provides a capacitive touch screen, which is convenient for you to operate and make configurations. It features great convenience, high flexibility, and great sensitivity. The actions supported by the touch screen controls include tapping and dragging.

4.5.1 Tap

Use one finger to tap the symbol or characters on the screen slightly, as shown in

Figure 4.7

• Tap the menu displayed on the screen to operate on the menu.

• Tap the function navigation icon at the lower-left corner of the touch screen to

• Tap the displayed numeric keypad to set the parameters.

• Tap the virtual keypad to set the filename.

• Tap the close button at the upper-right corner of the message box to close the

• Tap other windows on the touch screen and operate on the windows.

. With the Tap gesture, you can perform the following operations:

enable the function navigation.

prompt window.

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4.5.2 Drag

Use one finger to select the object, and then drag the object to a destination place, as shown in window (e.g. numeric keypad).

Figure 4.8

Quick Start

Figure 4.7 Tap Gesture

. You can drag the window controls to change the position of the

Figure 4.8 Drag Gesture

4.6 Parameter Setting Method

This instrument allows you to use the front-panel parameter input area and the touch screen to set parameters for the instrument.

NOTE

This manual mainly introduces how to set the parameters using the touch screen.

4.6.1 To Set Parameters with the Front-panel Keys and Knobs

You can use the front-panel parameter input area to set some parameters of the instrument. The parameter input area consists of a knob, a numeric keypad, unit selection keys, and arrow keys, as shown in the figure below.

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Quick Start

Knob

You can rotate the knob to move the cursor and navigate through the menu items. Then perform the following operations:

• If the cursor selects a parameter input field, you can press the knob to enter

the parameter editing mode. Then you can use the front-panel arrow keys to move the cursor to select the digit place to be modified. Rotate the knob clockwise to increment the value at the selected digit place or counter-clockwise to decrement the value. Press the knob again to confirm the parameter setting and disable the parameter editing mode.

• If the cursor selects a drop-down button, you can press the knob to expand

the drop-down menu and then rotate the knob to select a parameter in the menu. After that, press the knob again to confirm your selection and collapse the drop-down menu.

• If the cursor selects a key, on/off switch, or tab control, pressing the knob is

equivalent to tapping the corresponding key, on/off switch, or tab control using the touch screen.

Numeric Keypad

Ring-type numeric keypad composed of numeric keys (from 0 to 9) and the decimal point/symbol key. If the current cursor selects the input field, you can press the

numeric key to input a number and press

to input ".", "-", or "+". When using the

ring-type numeric keypad, you can also perform the following operations:

• Press the knob to confirm the input.

• Press to delete characters.

• Press

DG800 Pro User Guide

to cancel the input.

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Quick Start

Unit Selection Keys

When setting a parameter with the ring-type numeric keypad on the front panel, you can use the keys to select the unit of the parameter.

• : sets the parameter unit to the default one. For example, when setting the

phase, press > to set the phase to 1°; when setting the frequency,

press

> to set the frequency to 1 Hz.

• / / : when setting the frequency, use the unit (M/k/G) before "/";

when setting time/amplitude/offset, use the unit (μ/m/n) after "/". For example,

when setting the frequency, press > to set the frequency to 1 kHz; when

setting the period, press

> to set the period to 1 ms.

TIP

When the set value exceeds the limit value, the instrument automatically adjusts the parameter

to meet the requirements.

Arrow keys

• In normal mode, you can use the keys to move the cursor to select the desired

menu item. It is equivalent to rotating the knob.

• In parameter editing mode, you can use the keys to select the digit place to be

modified.

• When inputting parameters using the ring-type numeric keypad,

is used to

delete the character while is used to cancel the input and close the input field.

4.6.2 To Set Parameters with the Touch Screen

For this instrument, you can use the touch screen function to set all of its parameters. Click or tap the parameter input field and a virtual keypad will be displayed. You can use the pop-up keypad to complete your parameter setting. The method of using the virtual keypad is as follows.

Input Chinese and English Characters

For naming a file, this instrument supports both Chinese and English input methods. The following part introduces how to input Chinese and English characters with the Chinese/English input method.

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Quick Start

• Input English Characters

Uppercase/Lowercase

Switchover

Input Method

Switchover

Switch to Numbers and

Figure 4.9 English Input Interface

Input Area Virtual Keypad Backspace Key

Space Key

Symbols

Confirm Input

1. Select the English input method

First check the input method type. If it shows "En/中", then go to Step 2; if it shows "中/En", click or tap the input method switchover key to switch to "En/ 中" (English input method).

2. Clear the name input area

If there is no character in the "Input Area", please go to the next step. If there are characters in the "Input Area", click or tap the "Back" key to delete all the characters from the "Input Area" in order.

3. Input the upper-case letter

If you want to input an upper-case letter, first use the Caps key to switch between the upper-case and lower-case modes. If the Caps key is selected, input the upper-case letter with the virtual keypad. If not, first click or tap the Caps key to ensure it is selected, then input the upper-case letter. All the input letters will be displayed in the "Input Area".

4. Input the lower-case letter

Refer to the operation specified in the previous step. If the Caps key is not selected, directly input the lower-case letter.

DG800 Pro User Guide

5. Input numbers or symbols

If the letter keypad is displayed, you need to click or tap the numeric switchover key to switch to the numeric keypad, and input numbers or

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Quick Start

symbols with the numeric keypad. All the input letters will be displayed in the "Input Area".

6. Modify or delete the unwanted characters that have been input

During the name input process, you can modify or delete the unwanted character if necessary. To delete the characters that have been input, click or tap the "Back" key in the virtual keypad. To modify the characters that have been input, delete the unwanted characters first and then input the new characters.

You can directly move the cursor to the character to be modified or deleted, delete the desired character or input the new characters after deleting the unwanted character.

7. Confirm the input

After completing the input operation, click or tap "Enter".

• Input Chinese Characters

Input Area Chinese Character Selection Area

Figure 4.10 Chinese Input Interface

1. Select the Chinese input method

First check the input method type. If it shows "中/En", then go to Step 2; if it shows "En/中", click or tap the input method switchover key to switch to "中/En" (Chinese input method).

2. Clear the name input area

3. Input Chinese characters

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Quick Start

Click or tap the virtual keypad to input Pinyin into the input area, then the characters to be selected will be displayed in the "Chinese Character Selection Area". Slide to view more Chinese characters for you to choose. Select the desired Chinese character, and then the selected character will be displayed in the input area.

4. Modify or delete the unwanted characters that have been input

5. Confirm the input

After completing the input operation, click or tap "Enter".

Input a Value

When setting or modifying a function parameter, you can input an appropriate value with the numeric keypad.

Input Field

Unit Drop-down Button

Back Key

Clear Key

Enter Key

Unit Key

Use the numeric keys in the numeric keypad to input a value. Then select the desired unit, and the numeric keypad is turned off automatically. This indicates that you have completed the parameter setting. The unit drop-down menu includes all available units. You can also click or tap the unit drop-down button to select the desired unit when multiple units are available. Then click or tap "Enter" to confirm input and close the numeric keypad.

DG800 Pro User Guide

Figure 4.11 Numeric Keypad

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Quick Start

4.7 To Use the Built-in Help System

The built-in help file provides information about the functions and menu

introductions of the instrument. Click or tap > Help to enter the help system.

In the help system, you can get its help information by clicking on or tapping the link for the specified chapter.

4.8 To View the Option Information and Install the Option

DG800 Pro provides performance upgrade options to fulfill your measurement requirements. If you need any of these options, please order them according to the Order No. available in options by referring to this section. Besides, you can also view all the options of the instrument or activate the newly purchased option.

Appendix A: Options and Accessories

, and then install the

View Options

Click or tap the navigation icon > Utility to enter the Utility menu. Click or tap Options to view the option installation information.

Install the option

The option license is a string of fixed characters. The license file should be in a specific format, with the filename extension ".lic". After you purchase an option, you will obtain a key (used for obtaining desired the option license code). Then, you can install the option according to the following steps.

1. Obtain an option license

a. Log in to the RIGOL official website (

CENTRE > License Activation to enter the software license registration;

b. In the software license registration interface, input the correct key, serial

number (click or tap instrument), and verification code. Then click Generate to obtain the option license. If you need to use the file, please download it to the USB storage device.

> Utility > About to obtain the serial number of the

http://www.rigol.com

), click SERVICE

2. Install the option

You can install the option in the following ways:

- Open the file (*.lic) to obtain the license. Use the :SYSTem:LICense:INSTall

"<License>" command to install the option.

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Quick Start

- Save the license file to the USB storage device and connect the USB correctly to

the instrument (you can also save the file to the C disk). Then use the :SYSTem:LICense:INSTall:UDISk "<path>" command to install the option.

- Save the license file to the USB storage device, connect the USB correctly to the

instrument (you can also save the file to the C disk). Then click or tap

Store/ Recall to open the "Store" menu. Select the license file and then click or tap Option to install the option.

After installation, a prompt message "Option activated successfully" is displayed.

TIP

• For SCPI commands, refer to

• During the installation process, you are not allowed to power off the instrument.

• You are not allowed to modify the license filename.

DG800 Pro/DG900 Pro Programming Guide

DG800 Pro User Guide

Page 39

Continuous

Click or tap the "Output Mode" drop-down button to select "Cont" and configure the channel to output continuous waveform. The Continuous setting interface is as shown in the figure below.

Tabs Waveform Preview/Selection

Figure 5.1 Continuous Setting Interface

After setting the output mode to "Cont", you can configure the selected channel to output the following waveforms and then view the created waveform in the waveform preview area.

• Sine Wave

• Square Wave

• Ramp Wave

• Pulse

• Noise

• Arbitrary Waveforms

• Harmonic

The following table shows the range of the frequency for different waveforms.

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Continuous

Table 5.1 Range of Continuous Waveform Frequency

Waveform DG821 Pro DG822 Pro DG852 Pro

Sine 1 μHz to 25 MHz 1 μHz to 25 MHz 1 μHz to 50 MHz

Square 1 μHz to 20 MHz 1 μHz to 20 MHz 1 μHz to 40 MHz

Ramp 1 μHz to 1 MHz 1 μHz to 1 MHz 1 μHz to 1 MHz

Pulse 1 μHz to 10 MHz 1 μHz to 10 MHz 1 μHz to 25 MHz

Standard Arb 1 μHz to 10 MHz 1 μHz to 10 MHz 1 μHz to 15 MHz

Harmonic 1 mHz to 10 MHz 1 mHz to 10 MHz 1 mHz to 25 MHz

5.1 To Output Sine Wave

You can configure the instrument to output sine wave in the following ways.

• In the Continuous Setting Interface (

drop-down button to select "Sine".

• In the Continuous Setting Interface (

Preview/Selection" area and then click or tap

• Press the front-panel key.

In the setting interface for Sine wave, you can set the following parameters to create different sine waves as desired.

Frequency/Period

Click or tap the highlighted. Click or tap its input field and use the pop-up numeric keypad to set the frequency for sine wave. By default, the frequency for sine wave is 1 kHz, and the resolution is 1 μHz. For available ranges of the sine frequency of different models, please refer to tap the button again to toggle the parameter to "Period". Period = 1/Frequency.

Freq/Period button to set the parameter to "Freq". "Freq" is now

Table 5.1 Range of Continuous Waveform Frequency

Figure 5.1

Built In Wforms > Sine.

), click or tap the "Wave Type"

), click or tap the "Waveform

. You can click or

Amplitude/High Level

Click or tap the highlighted. Click or tap its input field and use the pop-up numeric keypad to set the amplitude for sine wave. Available units for amplitude include Vpp, Vrms, and dBm (not available in HighZ). The amplitude for sine wave is 5 Vpp by default. Available range of amplitude is related to the "Impedance" setting.

DG800 Pro User Guide

Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now

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Continuous

• HighZ: 2 mVpp to 20 Vpp.

• Load (50 Ω): 1 mVpp to 10 Vpp.

Click or tap the Ampl/HighL button again to toggle the parameter to "HighL". High Level = Offset + Amplitude/2. The high level range is related to the low level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

NOTE

1. How to convert the amplitude in Vpp to the corresponding value in Vrms?

Vpp is the unit for signal peak-peak value and Vrms is the unit for signal effective value. The

default unit is Vpp. When setting the amplitude with the pop-up numeric keypad, you can

click or tap the unit drop-down button to select the desired unit and then click or tap

"Enter" to confirm the current amplitude unit setting. You cannot set the amplitude in dBm

or Vrms for Arb and Harmonic.

The relationship between Vpp and Vrms varies for different waveforms. Take sine wave as

an example. The relationship between the two units is as shown in the figure below.

According to the figure above, the conversion relationship between Sine Vpp and Vrms

fulfills the following equation:

2. How to set the waveform amplitude in the unit of dBm?

a. Set the impedance to "Load" (refer to

b. When setting the amplitude, click or tap the unit drop-down button to select "dBm" in

the pop-up numeric keypad.

c. Input the desired value and then click or tap "Enter" to set the waveform amplitude in

dBm.

Vrms

2pp =

Impedance

dBm is the unit for signal power absolute value. The relationship between dBm and Vrms

fulfills the following equation:

dBm

=10 lg (

W is the unit of the signal power. R represents the channel output impedance value which

must be a certain value. Therefore, dBm is not available when the output impedance is set

to "HighZ".

Vrms

0. 001W

)

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Continuous

Offset/Low Level

Click or tap the Offset/LowL button to set the parameter to "Offset". "Offset" is now highlighted. Click or tap its input field and use the pop-up numeric keypad to set the offset for sine wave. The range of offset is limited by the "Impedance" and "Amplitude/High Level" setting. The default value is 0 Vdc.

Click or tap the Level = Offset - Amplitude/2. The low level range is related to the high level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

TIP

The "Ampl" and "Offset" buttons appear at the same time, so are "HighL" and "LowL" buttons.

For example, selecting "Offset" automatically toggles the "Ampl/HighL" parameter to "Ampl".

Starting Phase

Click or tap the Phase input field to set the starting phase, which ranges from -360° to 360°. The default phase is 0°, and the resolution is 0.01°.

Channel Setup

You can also click or tap the "Channel" tab in channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Offset/LowL button again to toggle the parameter to "LowL". Low

Continuous

interface to access the

After setting the waveform parameters, you need to enable the channel to output waveforms. You can enable the channel output in the following ways.

• Click or tap the channel label at the bottom of the screen.

• Press the front-panel

• Click or tap the channel identifier at the left side of the parameter configuration

area.

key of the corresponding channel.

5.2 To Output Square Wave

You can configure the instrument to output square wave in the following ways.

• In the Continuous Setting Interface (

drop-down button to select "Square".

• In the Continuous Setting Interface (

Preview/Selection" area and then click or tap

• Press the front-panel key.

Figure 5.1

Built In Wforms > Square.

), click or tap the "Wave Type"

), click or tap the "Waveform

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Continuous

In the setting interface for Square wave, you can set the following parameters to create different square waves as desired.

Frequency/Period

Click or tap the Freq/Period button to set the parameter to "Freq". "Freq" is now highlighted. Click or tap its input field and use the pop-up numeric keypad to set the frequency for square waveform. By default, the frequency for square is 1 kHz and the resolution is 1 μHz. For available ranges of the square frequency of different models, please refer to

Table 5.1 Range of Continuous Waveform Frequency

. You can click or

tap the button again to toggle the parameter to "Period". Period = 1/Frequency.

Amplitude/High Level

Click or tap the

Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now

highlighted. Click or tap its input field and use the pop-up numeric keypad to set the amplitude for square waveform. Available units for amplitude include Vpp, Vrms, and dBm (not available in HighZ). For how to set the amplitude in Vrms or dBm, please refer to

To Output Sine Wave

. The amplitude for square wave is 5 Vpp by default.

Available range of amplitude is related to the "Impedance" setting.

• HighZ: 2 mVpp to 20 Vpp.

• Load (50 Ω): 1 mVpp to 10 Vpp.

Click or tap the

Ampl/HighL button again to toggle the parameter to "HighL". High

Level = Offset + Amplitude/2. The high level range is related to the low level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

Offset/Low Level

Click or tap the

Offset/LowL button to set the parameter to "Offset". "Offset" is now

highlighted. Click or tap its input field and use the pop-up numeric keypad to set the offset for square waveform. The range of offset is limited by the "Impedance" and "Amplitude/High Level" setting. The default value is 0 Vdc.

Click or tap the

Offset/LowL button again to toggle the parameter to "LowL". Low

Level = Offset - Amplitude/2. The low level range is related to the high level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

TIP

The "Ampl" and "Offset" buttons appear at the same time, so are "HighL" and "LowL" buttons.

For example, selecting "Offset" automatically toggles the "Ampl/HighL" parameter to "Ampl".

Starting Phase

Click or tap the

Phase input field to set the starting phase, which ranges from -360°

to 360°. The default phase is 0°, and the resolution is 0.01°.

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Continuous

Duty Cycle

Duty cycle represents the amount of time per period that the square wave is at a high level, as shown in the figure below. The "Duty Cycle" parameter setting only appears when "Square" or "Pulse" is selected.

Duty Cycle=t/T*100%

Click or tap the Duty Cycle input field to set the duty cycle. The available range is from 0.01% to 99.99% (depending on the Frequency/Period setting). By default, it is 50%, and the resolution is 0.01%.

Channel Setup

You can also click or tap the "Channel" tab in

Figure 5.1

interface to access the

channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Refer to

Enable the Channel Output

of the "To Output Sine Wave" section.

5.3 To Output Ramp Wave

You can configure the instrument to output ramp wave in the following ways.

• In the Continuous Setting Interface (

drop-down button to select "Ramp".

• In the Continuous Setting Interface (

Preview/Selection" area and then click or tap

• Press the front-panel key.

In the setting interface for Ramp wave, you can set the following parameters to create different ramp waves as desired.

Frequency/Period

Click or tap the highlighted. Click or tap its input field and use the pop-up numeric keypad to set the frequency for ramp waveform. By default, the frequency for ramp wave is 1 kHz and the resolution is 1 μHz. For available ranges of the ramp frequency of different models, please refer to

Freq/Period button to set the parameter to "Freq". "Freq" is now

Table 5.1 Range of Continuous Waveform Frequency

Figure 5.1

Built In Wforms > Ramp.

), click or tap the "Wave Type"

), click or tap the "Waveform

. You can

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Continuous

click or tap the button again to toggle the parameter to "Period". Period = 1/ Frequency.

Amplitude/High Level

Click or tap the Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now highlighted. Click or tap its input field and use the pop-up numeric keypad to set the amplitude for ramp wave. Available units for amplitude include Vpp, Vrms, and dBm (not available in HighZ). For how to set the amplitude in Vrms or dBm, please refer to

To Output Sine Wave

. The amplitude for Ramp wave is 5 Vpp by default. The range of

amplitude is related to the "Impedance" setting.

• HighZ: 2 mVpp to 20 Vpp.

• Load (50 Ω): 1 mVpp to 10 Vpp.

Click or tap the

Ampl/HighL button again to toggle the parameter to "HighL". High

Level = Offset + Amplitude/2. The high level range is related to the low level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

Offset/Low Level

Click or tap the

Offset/LowL button to set the parameter to "Offset". "Offset" is now

highlighted. Click or tap its input field and use the pop-up numeric keypad to set the offset for ramp waveform. The range of offset is limited by the "Impedance" and "Amplitude/High Level" setting. The default value is 0 Vdc.

Click or tap the

Offset/LowL button again to toggle the parameter to "LowL". Low

Level = Offset - Amplitude/2. The low level range is related to the high level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

TIP

The "Ampl" and "Offset" buttons appear at the same time, so are "HighL" and "LowL" buttons.

For example, selecting "Offset" automatically toggles the "Ampl/HighL" parameter to "Ampl".

Starting Phase

Click or tap the Phase input field to set the starting phase, which ranges from -360° to 360°. The default phase is 0°, and the resolution is 0.01°.

Symmetry

Symmetry is defined as the percentage of the amount of time Ramp wave is rising in the period, as shown in the figure below. It only appears when "Ramp" is selected.

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Continuous

Symmetry=t/T*100%

Click or tap the Symmetry input field to set the symmetry, which ranges from 0.1% to

99.9%. The default value is 50%, and the resolution is 0.1%. In actual use, the symmetry is limited by the period: 20 ns ≤ Symmetry*Period ≤ Period - 20 ns.

Channel Setup

You can also click or tap the "Channel" tab in

Continuous

interface to access the

channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Refer to

Enable the Channel Output

of the "To Output Sine Wave" section.

5.4 To Output Pulse

You can configure the instrument to output Pulse in the following ways.

• In the Continuous Setting Interface (

drop-down button to select "Pulse".

• In the Continuous Setting Interface (

Preview/Selection" area and then click or tap

• Press the front-panel key.

In addition to basic parameters (e.g. Frequency, Amplitude, Offset, Starting Phase, High Level, Low Level) mentioned before, you also need to set the "Pulse Width/Duty Cycle", "Rising Edge", and "Falling Edge".

90%

Pulse Width

10%

90%

10%

Figure 5.1

Built In Wforms > Pulse.

), click or tap the "Wave Type"

), click or tap the "Waveform

DG800 Pro User Guide

Rising Edge

Falling Edge

One Cycle or Period

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Continuous

Frequency/Period

Click or tap the Freq/Period button to set the parameter to "Freq". "Freq" is now highlighted. Click or tap its input field and use the pop-up numeric keypad to set the frequency for pulse waveform. By default, the frequency for Pulse is 1 kHz and the resolution is 1 μHz. For available ranges of the pulse frequency of different models, please refer to

Table 5.1 Range of Continuous Waveform Frequency

. You can click or

tap the button again to toggle the parameter to "Period". Period = 1/Frequency.

Amplitude/High Level

Click or tap the Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now highlighted. Click or tap its input field and use the pop-up numeric keypad to set the amplitude for pulse waveform. Available units for amplitude include Vpp, Vrms, and dBm (not available in HighZ). For how to set the amplitude in Vrms or dBm, please refer to

To Output Sine Wave

. The amplitude for pulse wave is 5 Vpp by default. The

range of amplitude is related to the "Impedance" setting.

• HighZ: 2 mVpp to 20 Vpp.

• Load (50 Ω): 1 mVpp to 10 Vpp.

Click or tap the

Ampl/HighL button again to toggle the parameter to "HighL". High

Level = Offset + Amplitude/2. The high level range is related to the low level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

Offset/Low Level

Click or tap the

Offset/LowL button to set the parameter to "Offset". "Offset" is now

highlighted. Click or tap its input field and use the pop-up numeric keypad to set the offset for pulse waveform. The range of offset is limited by the "Impedance" and "Amplitude/High Level" setting. The default value is 0 Vdc.

Click or tap the

Offset/LowL button again to toggle the parameter to "LowL". Low

Level = Offset - Amplitude/2. The low level range is related to the high level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

TIP

The "Ampl" and "Offset" buttons appear at the same time, so are "HighL" and "LowL" buttons.

For example, selecting "Offset" automatically toggles the "Ampl/HighL" parameter to "Ampl".

Starting Phase

Click or tap the Phase input field to set the starting phase, which ranges from -360° to 360°. The default phase is 0°, and the resolution is 0.01°.

Page 48

Continuous

Pulse Width/Duty Cycle

Pulse width is the time from the 50% threshold of a pulse's rising edge to the 50% threshold of the next falling edge, as shown in the figure above. The pulse duty cycle is defined as the percentage of the pulse width to the pulse period. Changing one of them automatically modifies the other.

Click or tap the

Width/Duty button to set the parameter to "Width". "Width" is now

highlighted. Click or tap its input field and use the pop-up numeric keypad to set the pulse width. The available range is from 9 ns to 999.9 ks. The default value is 500 μs and the resolution is 0.1 ns.

Click or tap the

Width/Duty button to toggle the parameter to "Duty". Duty Cycle =

Pulse Width/Period. The available range is from 0.01% to 99.99%. The default value is 50% and the resolution is 0.01%.

TIP

• The pulse width must conform to the following restrictions determined by the period and

the minimum pulse width (Wmin: 9 ns): Minimum Pulse Width ≤ Pulse Width ≤ (Period -

Minimum Pulse Width), and Period*0.01% ≤ Pulse Width ≤ Period*99.99%.

• The pulse duty cycle must conform to the following restrictions determined by the

minimum pulse width and pulse period: (Minimum Pulse Width/Period)*100% ≤ Pulse

Duty Cycle ≤ (1 - Minimum Pulse Width/Period)*100%.

Leading/Trailing Edge

The leading (rising) edge time is the time it takes for the pulse level to go from 10% to 90%; trailing (falling) edge time is the time it takes for the pulse level to go from 90% to 10%.

Click or tap the

Leading/Trailing input field and use the pop-up numeric keypad to

set the leading edge time/trailing edge time. The leading/trailing edge time ranges from 3 ns to 1 s. The default value is 3 ns and the resolution is 0.1 ns.

TIP

The range of the trailing edge time is limited by the current waveform frequency, pulse width,

and leading edge time. The range of the leading edge time is limited by the current waveform

frequency and pulse width. When the set value exceeds the limits, the instrument will adjust

the edge time automatically.

Channel Setup

You can also click or tap the "Channel" tab in

Continuous

interface to access the

channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Refer to

Enable the Channel Output

of the "To Output Sine Wave" section.

DG800 Pro User Guide

Page 49

5.5 To Output Noise

You can configure the instrument to output noise in the following ways.

Continuous

• In the Continuous Setting Interface (

drop-down button to select "Noise".

• In the Continuous Setting Interface (

Preview/Selection" area and then click or tap

• Press the front-panel key.

In the setting interface for Noise, you can set the following parameters to create different noises as desired.

Amplitude/High Level

Click or tap the highlighted. Click or tap its input field and use the pop-up numeric keypad to set the amplitude for noise. Available units for amplitude include Vpp, Vrms, and dBm (not available in HighZ). The amplitude for noise is 4 Vpp by default. The available range is related to the "Impedance" setting.

• HighZ: 2 mVpp to 4 Vpp.

• Load (50 Ω): 1 mVpp to 2 Vpp.

Ampl/HighL button to set the parameter to "Ampl". "Ampl" is now

Figure 5.1

Built In Wforms > Noise.

), click or tap the "Wave Type"

), click or tap the "Waveform

Click or tap the Level = Offset + Amplitude/2. The high level range is related to the low level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

Offset/Low Level

Click or tap the highlighted. Click or tap its input field and use the pop-up numeric keypad to set the offset for noise. The range of offset is limited by the "Impedance" and "Amplitude/ High Level" setting. The default offset is 0 Vdc.

Click or tap the Level = Offset - Amplitude/2. The low level range is related to the high level setting value. That is, high level minus low level cannot exceed the current range of amplitude.

TIP

The "Ampl" and "Offset" buttons appear at the same time, and so are "HighL" and "LowL"

buttons. For example, selecting "Offset" automatically toggles the "Ampl/HighL" parameter to

"Ampl".

Ampl/HighL button again to toggle the parameter to "HighL". High

Offset/LowL button to set the parameter to "Offset". "Offset" is now

Offset/LowL button again to toggle the parameter to "LowL". Low

Page 50

Continuous

Channel Setup

You can also click or tap the "Channel" tab in

Continuous

channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Refer to

Enable the Channel Output

of the "To Output Sine Wave" section.

5.6 To Output Arbitrary Waveforms

DG800 Pro supports Arb output in both Continuous mode and Advanced mode. In the Continuous mode, DG800 Pro outputs waveforms by the traditional DDS method. The sample rate is fixed to 625 MSa/s and the output frequency is related to the instrument model (

TIP

If you want to change the sample rate and output the arbitrary waveforms point by point,

switch to the Advanced mode (

Select the Data Source

Table 5.1 Range of Continuous Waveform Frequency

Advanced Mode

interface to access the

•

Stored Waveforms

In the Continuous Setting Interface ( Preview/Selection" area and then click or tap

Figure 5.1

Stored Wforms in the displayed

), click or tap the "Waveform

menu to open the storage menu. Select the Arb file (*.arb/*.csv/*.txt) that you want to load from the internal memory (C:) or the external storage device (D:) and then click or tap

Load. After loading, the data in the current volatile memory

space will change. You can edit the Arb waveform through the PC software and download it into the instrument. It is recommended to use the PC software Ultra Station provided by RIGOL. The installation package and help manual of the software can be obtained from RIGOL official website.

TIP

- The non-advanced output mode only supports arbitrary waveforms with the length

of 16,384 pts.

- DG800 Pro does not support loading Arb files with file headers. It is recommended

to use Ultra Station 00.02.01.00.01 or later to generate Arb waveforms and untick

the "Save File With Header" box when saving the file.

NOTE

DG800 Pro User Guide

DG800 Pro supports arb files in *.arb, *.csv, and *.txt formats.

- *.arb files are data files that store binary values.

- *.csv files are voltage data stored in plain text, floating type.

Page 51

- *.txt files are plaintext voltage data (floating) or normalized wave point data

(-32768 to +32767) files separated by separators. Only one data format and

separator can be used in the same file. When loading the *.txt file, select the correct

file data format and data separator in the pop-up sub-menu.

• Built-in Waveforms

Continuous

In the Continuous Setting Interface ( Preview/Selection" area and then click or tap

Figure 5.1

Built In Wforms in the displayed

), click or tap the "Waveform

menu to open the built-in waveform selection menu. You can click or tap

Common, Engine, Seg Mod, Bioelect, Medical, Standard, Maths, Trigonome, Anti Trigonome, and Window Function to select your desired Arb waveform, as

shown in the table below. The selected waveform type is indicated in Shape in the Arb setting interface.

Table 5.2 Built-in Waveforms

Name Descriptions

Common

DC DC

Abssine Sine absolute value

Abssinehalf Half-sine absolute value

Ampalt Gain oscillation curve

Attalt Attenuation oscillation curve

Gausspulse Gaussian pulse

Negramp Negative ramp

Npulse Negative pulse

Ppulse Positive pulse

Posramp Positive ramp

Sinetra Sine-Tra waveform

Sinever Sine-Ver waveform

Stair Dn Stair down

Stair Ud Stair up/down

Stair Up Stair up

Trapezia Trapezia

Engineering

2ndosr01 2nd order step response (attenuation

constant: 0.1)

2ndosr02 2nd order step response (attenuation

constant: 0.2)

2ndosr07 2nd order step response (attenuation

constant: 0.7)

2ndoir01 2nd order impulse response (attenuation

constant: 0.1)

2ndoir02 2nd order impulse response (attenuation

constant: 0.2)

Page 52

Continuous

Name Descriptions

2ndoir07 2nd order impulse response (attenuation

constant: 0.7)

Prbs9 Pseudo-Random Binary Sequence of

order 9

Prbs11 Pseudo-Random Binary Sequence of

order 11

Prbs15 Pseudo-Random Binary Sequence of

order 15

Prbs16 Pseudo-Random Binary Sequence of

order 16

Prbs20 Pseudo-Random Binary Sequence of

order 20

Prbs21 Pseudo-Random Binary Sequence of

order 21

Prbs23 Pseudo-Random Binary Sequence of

order 23

Three Tone Three-tone signal

Four Tone Four-tone signal

Five Tone Five-tone signal

Six Tone Six-tone signal

Seven Tone Seven-tone signal

Eight Tone Eight-tone signal

Bandlimited Band-limited signal

Blaseiwave Time-velocity curve

Butterworth Butterworth filter

Chebyshev1 Type I Chebyshev filter

Chebyshev2 Type II Chebyshev filter

Combin Combination function

Cpulse C-Pulse signal

Cw Pulse CW pulse signal

Damped Osc Damped oscillation time-offset curve

Distortion Distorted waveform

Dampedsine1 Damped sine wave (1 Hz frequency)

Dampedsine3 Damped sine wave (3 Hz frequency)

Dampedsine5 Damped sine wave (5 Hz frequency)

Dualtone Dual-tone signal

Gamma Gamma signal

Gatevibr Gate self-excited oscillating signal

Lfm Pulse Linear frequency modulation pulse signal

LowerSemicircle Lower semicircle

Mcnoise Mechanical noise

Nimh Discharge Discharge curve of NiMH batteries

Neg halfsine Negative half cycle of sine wave

Pos Hwrsine Half wave rectifier of sine (positive)

DG800 Pro User Guide

Page 53

Continuous

Name Descriptions

Neg Hwrsine Half wave rectifier of sine (negative)

Pos Fwrsine Full wave rectifier of sine (positive)

Neg Fwrsine Full wave rectifier of sine (negative)

Pahcur DC brushless motor current waveform

Quake Earthquake wave

Radar Radar signal

Ripple Power ripple

Roundhalf Roundhalf waveform

Stepresp Step response signal

Swing Osc

Swing oscillation kinetic energy-time curve

TV TV signal

Voice Voice signal

Segment Modulation

Three Am Sine piecewise AM waveform

Three Fm Sine piecewise FM waveform

Three Pfm Pulse piecewise FM waveform

Three Pm Sine piecewise PM waveform

Three Pwm Pulse width piecewise FM waveform

Bioelectricity

Cardiac Cardiac signal

Ecg1 Electrocardiogram 1

Ecg2 Electrocardiogram 2

Ecg3 Electrocardiogram 3

Ecg4 Electrocardiogram 4

Ecg5 Electrocardiogram 5

Ecg6 Electrocardiogram 6

Ecg7 Electrocardiogram 7

Ecg8 Electrocardiogram 8

Ecg9 Electrocardiogram 9

Ecg10 Electrocardiogram 10

Ecg11 Electrocardiogram 11

Ecg12 Electrocardiogram 12

Ecg13 Electrocardiogram 13

Ecg14 Electrocardiogram 14

Ecg15 Electrocardiogram 15

Eog Electro-oculogram (EOG)

Eeg Electroencephalo-graph (EEG)

Emg Electromyography (EMG)

Pulsilogram Pulsilogram

Resspeed Speed curve of the respiration

Medical

Page 54

Continuous

Name Descriptions

Lf Pulse

Tens1

Tens2

Tens3

Low frequency pulse electrotherapy waveform

Transcutaneous Electric Nerve Stimulation (TENS) waveform 1

Transcutaneous Electric Nerve Stimulation (TENS) waveform 2

Transcutaneous Electric Nerve Stimulation (TENS) waveform 3

Standard

Ignition

Ignition waveform of the automotive motor

Iso16750 2 Sp Automotive starting profile with ringing

Iso16750 2 Vr

Automotive supply voltage profile for resetting

Iso16750 2 Vit Voltage discontinuous, variable interrupt

time

Iso16750 2 VRT Voltage discontinuous, variable recovery

time

Iso16750 2 LD1 Transients due to battery disconnect from

the generator

Iso16750 2 LD2 Transients due to battery disconnect from

the generator

Iso7637 2 Tp1 Automotive transients due to disconnects

Iso7637 2 Tp2a

Iso7637 2 Tp2b

Automotive transients due to inductance in wiring

Automotive transients due ignition switching off

Iso7637 2 Tp3a Automotive transients due to switching

Iso7637 2 Tp3b Automotive transients due to switching

Iso7637 2 Tp4 Automotive supply profile during starting

Iso7637 2 Tp5a

Iso7637 2 Tp5b

Automotive transients due to battery disconnect

Scr SCR firing profile

Surge Surge signal

Maths

Airy Airy function

Airyai AiryAi

Airybi AiryBi

Besselj BesselI function

Bessely BesselII function

Cauchy Cauchy distribution function

Chebyshev3 3rd order Chebyshev polynomial

Chebyshev4 4th order Chebyshev polynomial

Chebyshev5 5th order Chebyshev polynomial

Chebyshev6 6th order Chebyshev polynomial

DG800 Pro User Guide

Page 55

Continuous

Name Descriptions

Chebyshev7 7th order Chebyshev polynomial

Chebyshev8 8th order Chebyshev polynomial

Chebyshev9 9th order Chebyshev polynomial

Chebyshev10 10th order Chebyshev polynomial

Clausen Clausen function

Cubic Cubic function

Dirichlet Dirichlet function

Erf Error function

Erfc Complementary error function

Erfcinv Inverted complementary error function

Erfinv Inverted error function

Expfall Exponential fall function

Exprise Exponential rise function

Gabor1 Garbor function 1

Gabor3 Garbor function 3

GammaInv Inverse Gamma function

Gauss

Gaussian distribution (also known as normal distribution)

Gaussderiv Gaussian derivative

Gausshermite1 Gauss-Helmert function 1

Gausshermite2 Gauss-Helmert function 2

Gausshermite3 Gauss-Helmert function 3

Gausshermite4 Gauss-Helmert function 4

Haversine HaverSine function

Laguerre Laguerre polynomial

Laguerre2 2nd order Laguerre polynomial

Laguerre3 3rd order Laguerre polynomial

Laguerre4 4th order Laguerre polynomial

Laguerre5 5th order Laguerre polynomial

Laguerre6 6th order Laguerre polynomial

Laguerre7 7th order Laguerre polynomial

Laguerre8 8th order Laguerre polynomial

Laguerre9 9th order Laguerre polynomial

Laplace Laplace distribution

Legend Quintic Legendre polynomial

Legendre3 3rd order Legendre polynomial

Legendre4 4th order Legendre polynomial

Legendre5 5th order Legendre polynomial

Legendre6 6th order Legendre polynomial

Legendre7 7th order Legendre polynomial

Legendre8 8th order Legendre polynomial

Legendre9 9th order Legendre polynomial

Page 56

Continuous

Name Descriptions

Legendre10 10th order Legendre polynomial

Log Logarithmic function with the base of 10

Lognormal Logarithmic normal distribution

Lorentz Lorentz function

Mathieu1 1st order Mathieu function

Mathieu3 3rd order Mathieu function

Mathieu5 5th order Mathieu function

Maxwell Maxwell distribution

Modbesseli0 Modified Bessel function

Rayleigh Rayleigh distribution

Sphbesselj1 Spherical Bessel function of the first kind

Sphbesselj2 Spherical Bessel function of the second

kind

Tick Check-shaped function

Versiera Versiera

Weibull Weibull distribution

Weierstrass Weierstrass function

X2 Square function

X3 Cubic function

Trigonome

Cosh Hyperbolic cosine

Coshc Normalized Hyperbolic cosine

Cosint Cosine integral

Cot Cotangent function

Coth Con Concave hyperbolic cotangent

Coth Pro Protuberant hyperbolic cotangent

Csc Con Concave cosecant

Csc Pro Protuberant cosecant

Csch Con Concave hyperbolic cosecant

Csch Pro Protuberant hyperbolic cosecant

Recip Con Concave reciprocal

Recip Pro Protuberant reciprocal

Sec Con Concave secant

Sec Pro Protuberant secant

Sech Hyperbolic secant

Sinc Sinc function

Sinh Hyperbolic sine

Sinhc Normalized Hyperbolic sine

Sinint Integral sine

Sqrt Square root

Tan Tangent

Tanh Hyperbolic tangent

DG800 Pro User Guide

Page 57

Continuous

Name Descriptions

Tanhc Normalized Hyperbolic tangent

Anti Trigonome

Acos Arc cosine

Acosh Arc hyperbolic cosine

Acot Inverse cotangent function

Acot Con Concave arc cotangent

Acot Pro Protuberant arc cotangent

Acoth Con Concave arc hyperbolic cotangent

Acoth Pro Protuberant arc hyperbolic cotangent

Acsc Con Concave arc cosecant

Acsc Pro Protuberant arc cosecant

Acsch Con Concave arc hyperbolic cosecant

Acsch Pro Protuberant arc hyperbolic cosecant

Archav Inverse haversine function

Archcv Inverse hacoversed sine function

Asec Con Concave arc secant

Asec Pro Protuberant arc secant

Asech Arc hyperbolic secant

Asin Arc Sinc

Asinh Arc hyperbolic sine

Atan Arc tangent

Atanh Arc hyperbolic tangent

Window Function

Barlett Bartlett window

Barthannwin Modified Bartlett window

Blackman Blackman window

Blackman H BlackmanH window

Bohmanwin Bohman window

Boxcar Rectangle window

Chebwin Chebyshev window

Flattopwin Flat-top window

Hamming Hamming window

Hanning Hanning window

Kaiser Kaiser window

Nuttallwin

Nuttall-defined minimum 4-term Blackman-Harris window

Parzenwin Parzen window

Taylorwin Taylor window

Triang Triangle window (also Fejer window)

Tukeywin Tukey window

Page 58

Continuous

Set Arb Parameters

After selecting the waveform (except DC), you can set the frequency/period, amplitude/high level, offset/low level, and phase. To set the waveform parameters and output, please refer to

When the Arb type is set to DC, only offset setting is available. The range of DC offset is related to the "Impedance" setting.

• HighZ: -10 Vdc to +10 Vdc.

• Load (50 Ω): -5 Vdc to +5 Vdc.

To Output Sine Wave

5.7 To Output Harmonic

DG800 Pro can be used as a harmonic generator to output harmonics with the specified order, amplitude, and phase. It is usually used in the test of harmonic detector device or harmonic filter device. According to Fourier transform, time domain waveform is the superposition of a series of sine waveforms as shown in the equation below:



)(

Generally, the component with

as the fundamental frequency,

fundamental phase. The frequencies of the other components (called harmonics) are all integral multiples of the fundamental frequency.

In the Continuous Setting Interface ( down button to select "Harmonic". You can also click or tap the "Waveform Preview/ Selection" area and then click or tap menu to enter the Harmonic Setting Interface, as shown in the figure below.

sin(









fAtf



sin(

frequency is called the fundamental waveform, with

as the fundamental amplitude, and

Figure 5.1

Built In Wforms > Harmonic in the displayed



)



), click or tap the "Wave Type" drop-

sin(









as the

...

DG800 Pro User Guide

Page 59

Harmonic Type

Continuous

Figure 5.2 Harmonic Setting Interface

Fundamental Waveform Parameters

DG800 Pro allows you to set the frequency/period, amplitude/high level, offset/low level for fundamental waveforms. You can refer to

To Output Sine Wave

to set the above parameters. Note that Vrms and dBm are not available for the unit of the fundamental amplitude.

TIP

The max. fundamental frequency (

harmonic frequency (

the fundamental frequency. For the max. harmonic frequency (

Table 5.1 Range of Continuous Waveform Frequency

max

fund

) is limited by the harmonic order (N) and max.

fund

= (2 x

÷ N). Changing the harmonic order may modify

max

) of different models, refer

max

Harmonic Type

Click or tap the "Harmonic Type" drop-down button to select the desired type.

• Order: only outputs the basic waveform and the specified harmonic component.

For example, if the Order is set to 5, the instrument will output the basic waveform and the 5th harmonic component.

• Combine: outputs harmonics with multiple harmonic components.

In this mode, 20 bits binary data are used to represent the output status of the 20 orders of harmonics respectively; wherein, 1 represents enabling the output

Page 60

Continuous

of the corresponding harmonic and 0 represents disabling the output of the corresponding harmonic. Click or tap the User input field and use the pop-up virtual keypad to set the value of each data bit. Note that the leftmost bit representing fundamental waveform is always X and can not be modified. For example, set the 20 bits data to X001 0000 0000 0000 0001 and then fundamental waveform as well as 4th and 20th orders of harmonics will be output.

Order Harmonic

Click or tap the "Harmonic Type" drop-down button to select "Order" to enter the setting menu. Click or tap the

Order input field to set the order. It ranges from 2

(default) to 20. After that, you can set the harmonic amplitude and phase.

• Harmonic Amplitude: click or tap the Harm Ampl input field to set the

amplitude with the pop-up virtual keypad.

• Harmonic Phase: click or tap the Harm Phase input field to set the phase with

the pop-up virtual keypad.

Combine Harmonic

Click or tap the "Harmonic Type" drop-down button to select "Combine" to enter the setting menu. Click or tap the

User input field to set the user-defined orders of

harmonics. After that, you can click or tap the harmonic editing table to set the amplitude and phase in the pop-up menu.

• Harmonic Amplitude: click or tap any cell in the Amplitude column and use the

DG800 Pro User Guide

Figure 5.3 Table Editing Menu

pop-up virtual keypad to set the amplitude for the harmonic with the specified order.

Page 61

Continuous

• Harmonic Phase: click or tap any cell in the Phase column and use the pop-up

virtual keypad to set the phase for the harmonic with the specified order.

TIP

You can click or tap the SN input field to set the order to locate the specified harmonic quickly.

Channel Setup

You can also click or tap the "Channel" tab in

Continuous

interface to access the

channel setup interface to configure channel output. For details, please refer to

Channel Setup

Enable the Channel Output

Refer to

Enable the Channel Output

of the "To Output Sine Wave" section.

Page 62

Modulation

DG800 Pro allows you to output various modulated waveforms. Available modulation types include AM, FM, PM, ASK, FSK, PSK, PWM, and SUM. Both internal and external modulation sources are available for modulating waveforms.

Click or tap the "Output Mode" drop-down button to select "Mod" and access the interface as shown in the figure below. You can click or tap one of the tabs at the bottom to access the Continuous (Carrier) Setting Interface, Modulation Setting Interface, or Channel Setup Interface. For Continuous (Carrier) Setting Interface and Channel Setup Interface, please refer to This chapter only describes the modulation settings.

Continuous

Modulation Type

and

Channel Setup

respectively.

Tabs

Figure 6.1 Modulation Setting Interface

6.1 Amplitude Modulation (AM)

In Amplitude Modulation (AM), a modulated waveform consists of a carrier waveform and a modulating waveform. The amplitude of the carrier waveform is varied by the instantaneous voltage of the modulating waveform. In the "Modulation Setting

DG800 Pro User Guide

Page 63

Modulation

Interface" (

Figure 6.1

), click or tap the "Modulation Type" drop-down button to select

"AM" and set its parameters.

Carrier Waveform

Available AM carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape. Enter the carrier setting interface and refer to

Continuous

to set the carrier parameters.

Modulating Waveform

The instrument accepts an internal or external signal as the modulation source. Click or tap the Source drop-down button to select "Internal" or "External".

• Internal Source

After "Internal" is selected, you can click or tap the Shape drop-down button to select the modulating waveform shape. Available shapes include:

- Sine

- Square with 50% duty cycle

- Triangle with 50% symmetry

- UpRamp with 100% symmetry

- DnRamp with 0% symmetry

- Noise - white gaussian noise

- Arb: When the "Shape" is set to Arb, you can click or tap the Shape input

field to set the Arb type.

• External Source

After "External" is selected,

Shape and AM Freq are grayed out and disabled.

The instrument accepts an external modulation source applied to the rear-panel [AUX IN/OUT] connector. At this time, the amplitude of the modulated waveform is controlled by the ±5 V signal level present on the connector.

NOTE

How to realize the intermodulation between dual channels? The following example takes the

output signal of CH2 as the modulating waveform.

1. Connect the CH2 output terminal to the rear-panel [AUX IN/OUT] connector of CH1 using

the dual BNC cable.

2. Select CH1 and set the output mode to "Mod". Select the desired modulation type and set

the corresponding parameters. Set the

3. Select CH2 and set the desired shape as well as the corresponding parameters.

4. Turn on the CH1 and CH2 outputs.

Source to "External".

Page 64

Modulation

Modulation Frequency

After the internal modulation source is selected, click or tap the AM Freq input field and set the modulation frequency with the pop-up numeric keypad. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz. The resolution is 1 μHz.

TIP

When an external modulation source is selected, this setting is grayed out and disabled.

Modulation Depth

Modulation depth is a percentage that represents the amplitude variation. Click or tap the Depth input field to set the modulation depth. AM depth ranges from 0% to 120%. The default is 100%, and the resolution is 0.01%.

• At 0% depth, the amplitude is one-half of the carrier's amplitude setting.

• At 100% depth, the amplitude is identical to the carrier's amplitude setting.

• At greater than 100% depth, the output amplitude will not exceed the maximum

output amplitude .

When an external modulation source is selected, the AM modulation amplitude is also controlled by the ±5 V signal level on the rear-panel [AUX IN/OUT] connector. For example, if the modulation depth is set to 100%, then the output will be at the maximum amplitude when the modulating signal is at +5 V. The output will be at the minimum amplitude when the modulating signal is at -5 V.

DSSC

DG800 Pro supports two forms of amplitude modulation, Normal and Double Sideband Suppressed Carrier (DSSC). In "normal" AM, the modulated wave consists of the carrier wave and two sidebands. Such a modulation is inefficient because the carrier wave carries no information. If this carrier is suppressed and the saved power is distributed to the two sidebands, then such a process is called Double Sideband Suppressed Carrier (DSSC).

By default, the "DSSC" is off. Click or tap the

DSSC on/off switch to turn on or off the

DSSC function.

6.2 Frequency Modulation (FM)

In Frequency Modulation (FM), a modulated waveform consists of a carrier waveform and a modulating waveform. The frequency of the carrier waveform is varied by the instantaneous voltage of the modulating waveform. In the "Modulation Setting Interface" ( "FM" and set its parameters.

DG800 Pro User Guide

Figure 6.1

), click or tap the "Modulation Type" drop-down button to select

Page 65

Modulation

Carrier Waveform

Available FM carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape. Enter the carrier setting interface and refer to

Continuous

to set the carrier parameters.

Modulating Waveform

The instrument accepts an internal or external signal as the modulation source. Click or tap the

Source drop-down button to select "Internal" or "External".

• Internal Source

After "Internal" is selected, you can click or tap the Shape drop-down button to select the modulating waveform shape. Available shapes include:

- Sine

- Square with 50% duty cycle

- Triangle with 50% symmetry

- UpRamp with 100% symmetry

- DnRamp with 0% symmetry

- Noise - white gaussian noise

- Arb: When the "Shape" is set to Arb, you can click or tap the Shape input

field to set the Arb type.

• External Source

After "External" is selected,

Shape and FM Freq are grayed out and disabled. The

instrument accepts an external modulation source applied to the rear-panel [AUX IN/OUT] connector. At this time, the amplitude of the modulated waveform is controlled by the ±5 V signal level present on the connector.

Modulation Frequency

After the internal modulation source is selected, click or tap the

FM Freq input field

and set the modulation frequency with the pop-up numeric keypad. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz. The resolution is 1 μHz.

TIP

When an external modulation source is selected, this setting is grayed out and disabled.

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Modulation

Frequency Deviation

It represents the peak variation in frequency of the modulated waveform from the carrier frequency. Click or tap the Freq Dev input field to set the frequency deviation. The minimum frequency deviation is 0 Hz.

• For FM, the frequency deviation must always be less than or equal to the carrier

frequency minus 1 μHz.

• The frequency deviation plus the carrier frequency must be less than or equal to

the selected carrier's maximum frequency.

When an external modulation source is selected, the frequency deviation is controlled by the ±5 V signal level on the rear-panel [AUX IN/OUT] connector. For example, if the frequency deviation is set to 1 kHz, the +5 V signal level corresponds to a 1 kHz increase in frequency. Lower external signal levels produce less deviation and negative signal levels reduce the frequency below the carrier frequency.

6.3 Phase Modulation (PM)

In Phase Modulation (PM), a modulated waveform consists of a carrier waveform and a modulating waveform. The phase of the carrier waveform is varied by the instantaneous voltage of the modulating waveform. In the "Modulation Setting Interface" ( "PM" and set its parameters.

Carrier Waveform

Available PM carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape and access the setup interface. To configure different carrier waveforms, please refer to

Continuous

Modulating Waveform

The instrument accepts an internal or external signal as the modulation source. Click or tap the Source drop-down button to select "Internal" or "External".

• Internal Source

Figure 6.1

), click or tap the "Modulation Type" drop-down button to select

DG800 Pro User Guide

After "Internal" is selected, you can click or tap the Shape drop-down button to select the modulating waveform shape. Available shapes include:

- Sine

- Square with 50% duty cycle

- Triangle with 50% symmetry

- UpRamp with 100% symmetry

Page 67

- DnRamp with 0% symmetry

- Noise - white gaussian noise

- Arb: When the "Shape" is set to Arb, you can click or tap the Shape input

field to set the Arb type.

• External Source

Modulation

After "External" is selected, The instrument accepts an external modulation source applied to the rear-panel [AUX IN/OUT] connector. At this time, the amplitude of the modulated waveform is controlled by the ±5 V signal level present on the connector.

Modulation Frequency

After the internal modulation source is selected, click or tap the PM Freq input field and set the modulation frequency with the pop-up numeric keypad. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz. The resolution is 1 μHz.

TIP

When an external modulation source is selected, this setting is grayed out and disabled.

Phase Deviation

The phase deviation represents the peak variation in phase of the modulated waveform from the carrier waveform. Click or tap the phase deviation. It ranges from 0° to 360°, and the default is 90°. The resolution is

0.01°.

Shape and PM Freq are grayed out and disabled.

PM Dev input field to set the

When an external modulation source is selected, the phase deviation is controlled by the ±5 V signal level on the rear-panel [AUX IN/OUT] connector. For example, if the phase deviation is set to 180º, the +5 V signal level corresponds to a 180º phase shift. Lower external signal levels produce less deviation.

6.4 Amplitude Shift Keying (ASK)

With Amplitude Shift Keying (ASK), you can configure the instrument to "shift" its output amplitude between two preset values (called the "carrier amplitude" and the"modulation amplitude"). In the "Modulation Setting Interface" ( or tap the "Modulation Type" drop-down button to select "ASK" and set its parameters.

Carrier Waveform

Available ASK carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape.

Figure 6.1

), click

Page 68

Modulation

In the Carrier (Continuous) interface, click or tap the Ampl/HighL button to set the parameter to "Ampl". Click or tap its input field and use the pop-up numeric keypad to set the carrier amplitude. For carrier amplitude setting methods and available range, please refer to

Continuous

Modulation Source

The instrument accepts an internal or external signal as the modulation source. Click or tap the

Source drop-down button to select "Internal" or "External".

• Internal Source

When "Internal" is selected, the instrument uses a square wave with 50% duty cycle as the ASK modulation source. At this time, the output amplitude "shifts" between "carrier amplitude" and "modulation amplitude". The shift rate is determined by "ASK Rate".

• External Source

When "External" is selected, the generator receives the external modulating signal from the rear-panel [AUX IN/OUT] connector.

ASK Rate

ASK rate is the rate at which the output amplitude "shifts" between the carrier amplitude and modulation amplitude when an internal modulation source is used. Click or tap the

ASK Rate input field and use the pop-up numeric keypad to set the

rate. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz. The resolution is 1 μHz.

TIP

When the external modulation source is selected, this setting is grayed out and disabled.

Modulation Amplitude

Click or tap the ASK Ampl input field and use the pop-up numeric keypad to set the modulation amplitude. The available range of modulation amplitude is consistent with the range of basic waveform amplitude and the default is 2 Vpp.

Polarity

Click or tap the control the amplitude output. The default is "Positive".

• Positive: when the internal/external modulation signal is a logic low level, the

• Negative: when the internal/external modulation signal is a logic low level, the

DG800 Pro User Guide

Polarity drop-down button to select "Positive" or "Negative" to

carrier amplitude is output; when the signal is a logic high level, the modulation amplitude is output.

modulation amplitude is output; when the signal is a logic high level, the carrier amplitude is output.

Page 69

6.5 Frequency Shift Keying (FSK)

With Frequency Shift Keying (FSK), you can configure the instrument to "shift" its output frequency between two preset values (called the "carrier frequency" and the"hop frequency”). In the "Modulation Setting Interface" ( the "Modulation Type" drop-down button to select "FSK" and set its parameters.

Carrier Waveform

Available FSK carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape.

Figure 6.1

Modulation

), click or tap

In the Carrier (Continuous) interface, click or tap the parameter to "Freq". Click or tap its input field and use the pop-up numeric keypad to set the carrier frequency. The frequency range varies for different carrier waveforms. For details, refer to

Modulation Source

The instrument accepts an internal or external signal as the modulation source. Click or tap the

• Internal Source

• External Source

FSK Rate

Source drop-down button to select "Internal" or "External".

When "Internal" is selected, the instrument uses a square wave with 50% duty cycle as the FSK modulation source. At this time, the output frequency "shifts" between "carrier frequency" and "hop frequency". The shift rate is determined by “FSK Rate”.

When "External" is selected, the generator receives the external modulating signal from the rear-panel [AUX IN/OUT] connector.

Continuous

Freq/Period button to set the

FSK rate is the rate at which the output frequency "shifts" between the carrier frequency and the hop frequency when an internal modulation source is used. Click or tap the The available range is from 2 mHz to 1 MHz, and the default is 100 Hz.

TIP

When the external modulation source is selected, this setting is grayed out and disabled.

Hop Frequency

Click or tap the Hop Freq input field and use the pop-up numeric keypad to set the hop frequency. The range of hop frequency is related to the instrument model and wave type. For details, refer to

FSK Rate input field and use the pop-up numeric keypad to set the rate.

Table 5.1 Range of Continuous Waveform Frequency

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Modulation

Polarity

Click or tap the Polarity drop-down button to select "Positive" or "Negative" to control the frequency output. The default is "Positive".

• Positive: when the internal/external modulation signal is a logic low level, the

carrier frequency is output; when the signal is a logic high level, the hop frequency is output.

• Negative: when the internal/external modulation signal is a logic low level, the

hop frequency is output; when the signal is a logic high level, the carrier frequency is output.

6.6 Phase Shift Keying (PSK)

In Phase Shift Keying (PSK), you can configure the instrument to "shift" its output phase between two preset phase settings ("carrier phase" and "modulation phase"). In the "Modulation Setting Interface" ( drop-down button to select "PSK" and set its parameters.

Figure 6.1

), click or tap the "Modulation Type"

Carrier Waveform

Available PSK carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding frontpanel waveform selection key to select the desired carrier waveform shape.

In the Carrier (Continuous) interface, click or tap the "Phase" input field and use the pop-up numeric keypad to set the starting phase. It ranges from -360° to 360°, and the default is 0°. The resolution is 0.01°.

Modulation Source

The instrument accepts an internal or external signal as the modulation source. Click or tap the

• Internal Source

• External Source

Source drop-down button to select "Internal" or "External".

When "Internal" is selected, the instrument uses a square wave with 50% duty cycle as the PSK modulation source. At this time, the output phase "shifts" between "carrier phase" and "modulation phase". The shift rate is determined by "PSK Rate".

PSK Rate

PSK rate is the rate at which the output phase "shifts" between the carrier phase and modulation phase when an internal modulation source is used. Click or tap the

DG800 Pro User Guide

When "External" is selected, the generator receives the external modulating signal from the rear-panel [AUX IN/OUT] connector.

PSK

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Modulation

Rate input field and use the pop-up numeric keypad to set the rate. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz. The resolution is 1 μHz.

TIP

When the external modulation source is selected, this setting is grayed out and disabled.

Modulation Phase

Click or tap the Phase input field and use the pop-up numeric keypad to set the modulation phase. It ranges from 0° to 360°, and the default is 180°. The resolution is

0.01°.

Polarity

Click or tap the Polarity drop-down button to select "Positive" or "Negative" to control the phase output. The default is "Positive".

• Positive: when the internal/external modulation signal is a logic low level, the

carrier phase is output; when the signal is a logic high level, the modulation phase is output.

• Negative: when the internal/external modulation signal is a logic low level, the

modulation phase is output; when the signal is a logic high level, the carrier phase is output.

6.7 Pulse Width Modulation (PWM)

For Pulse Width Modulation (PWM), the pulse width of the output signal is varied by the instantaneous voltage of the modulating waveform. The amount by which the pulse width varies is called the width deviation.

TIP

To select the PWM function, first click or tap the "Wave Type" drop-down button to select

"Pulse" and then set the "Output Mode" to "Mod". The modulation type will be set to "PWM"

automatically. Refer to the following section to set the other modulation parameters.

Carrier Waveform

PWM is only available for the Pulse waveform. Click or tap the "Wave Type" drop-

down button to select "Pulse" or press the front-panel key to set the carrier waveform to Pulse.

For pulse width/duty cycle setting, refer to

To Output Pulse

Modulation Source

The instrument accepts an internal or external signal as the modulation source. Click or tap the Source drop-down button to select "Internal" or "External".

Page 72

Modulation

• Internal Source

After "Internal" is selected, you can click or tap the Shape drop-down button to select the modulating waveform shape. Available shapes include:

- Sine

- Square with 50% duty cycle

- Triangle with 50% symmetry

- UpRamp with 100% symmetry

- DnRamp with 0% symmetry

- Noise - white gaussian noise

- Arb: When the "Shape" is set to Arb, you can click or tap the Shape input

field to set the Arb type.

External Source

•

After "External" is selected,

Shape and PWM Freq are grayed out and disabled.

Modulation Frequency

After the internal modulation source is selected, click or tap the

PWM Freq input field

and set the modulation frequency with the pop-up numeric keypad. The available range is from 2 mHz to 1 MHz, and the default is 100 Hz.

TIP

When an external modulation source is selected, this setting is disabled.

Width Deviation/Duty Cycle Deviation

PWM deviation represents the variation of the modulated waveform pulse width relative to the original pulse width. You can use time (width deviation) or duty cycle (duty cycle deviation) to set the PWM deviation. This setting is subject to the

Width/Duty Cycle

for

Pulse Width/Duty Cycle

setting in Carrier (Pulse) setting. For example, if "Width" is selected

of the Pulse setting, then the PWM deviation setting is

Pulse

automatically set to "Width Dev".

• Width Deviation

DG800 Pro User Guide

Width deviation represents the amount by which the pulse width of the modulated waveform varies from the original pulse width. The unit is s. For example, if you specify a pulse width as 10 s and width deviation as 5 s, the

Page 73

Modulation

pulse width of the modulated waveform varies from 5 s to 15 s under the control of the modulating signal.

Click or tap the Duty Dev/Width Dev button to set the parameter to "Width Dev". "Width Dev" is now highlighted. Click or tap its input field to set the width deviation. The range of the width deviation is limited by the pulse width, pulse period, and leading/trailing edge of the pulse waveform:

- Width Deviation ≤ Pulse Width - 5.25 ns -(Leading Edge Time + Trailing

Edge Time)/1.6.

- Width Deviation ≤ Pulse Period - Pulse Width - 5.25 ns-(Leading Edge Time

+ Trailing Edge Time)/1.6.

• Duty Cycle Deviation

Duty cycle deviation represents the amount by which the pulse width of the modulated waveform varies from the original pulse width. The unit is the percentage of the waveform period. For example, if you specify a pulse duty cycle as 10% and duty cycle deviation as 5%, the duty cycle of the modulated waveform varies from 5% to 15% under the control of the modulating signal.

Click or tap the Dev". "Duty Dev" is now highlighted. Click or tap its input field to set the duty cycle deviation. The duty cycle deviation ranges from 0% to 49.99%, and is limited by the period, duty cycle, and edge time of the pulse waveform.

When an external modulation source is selected, the width deviation (or duty cycle deviation) is controlled by the ±5 V signal level on the rear-panel [AUX IN/OUT] connector. For example, if the width deviation is set to 10 s, the +5 V signal level corresponds to a 10 s deviation.

Duty Dev/Width Dev button to set the parameter to "Duty

6.8 SUM Modulation

When the waveform summing function is enabled, you can add a specified waveform to the current basic/Arb waveform. In the "Modulation Setting Interface" ( click or tap the "Modulation Type" drop-down button to select "SUM" and set its parameters.

Carrier Waveform

Available carrier waves include sine (default), square, ramp, and Arb (except DC). Click or tap the "Wave Type" drop-down button or press the corresponding front-panel waveform selection key to select the desired carrier waveform shape. Enter the carrier setting interface and refer to

Continuous

to set the carrier parameters.

Figure 6.1

Sum Source

Click or tap the the current waveform. Available waveform shapes include:

Waveform drop-down button to select the waveform to be added to

Page 74

Modulation

• Sine

• Square with 50% duty cycle

• Triangle with 50% symmetry

• UpRamp with 100% symmetry

• DnRamp with 0% symmetry

• Noise - white gaussian noise

• Arb: When the "Shape" is set to Arb, you can click or tap the Waveform input

field to set the Arb type.

Sum Frequency

It sets the frequency of the waveform to be added to the current continuous waveform. Click or tap the SUM Freq input field and use the pop-up virtual keypad to set the frequency. The range of the Sum frequency is from 2 mHz to 1 MHz.

Sum Ratio

It sets the ratio of the amplitude of the waveform to be added relative to the amplitude of the current waveform. Click or tap the

SUM Ratio input field and use

the pop-up virtual keypad to set the ratio. The default value is 50%. The available range is limited by the current carrier amplitude and max. amplitude.

DG800 Pro User Guide

Page 75

Sweep

In frequency sweep mode, the instrument moves from the start frequency to the stop frequency within a specified sweep time. You can sweep up or down in frequency, with linear, logarithmic, or step sweep types. It allows you to set the "Mark" frequency, start/stop hold time, and return time. It provides trigger sources including internal, external, and manual sources. You can sweep sine, square, ramp, and Arb (except DC).

Click or tap the "Output Mode" drop-down button to select "Sweep" and access the interface as shown in the figure below. You can click or tap one of the tabs at the bottom to access the Continuous Setting Interface, Sweep Setting Interface, or Channel Setup Interface. For Continuous Setting Interface and Channel Setup Interface, please refer to only describes the sweep settings.

Continuous

and

Channel Setup

Sweep Type

respectively. This chapter

Manual Trigger Key

Tabs

Figure 7.1 Sweep Setting Interface

7.1 Sweep Type

This instrument provides three sweep types: Linear, Log, and Step. The default is Linear. Click or tap the "Sweep Type" drop-down button to select "Linear", "Log", or "Step".

Page 76

Sweep

Linear Sweep

The instrument varies the output frequency linearly during the sweep, changing the output frequency by a constant number of Hz per second. It is characterized by "Start Frequency", "Stop Frequency", and "Sweep Time".

Figure 7.2 Linear Sweep

Logarithmic Sweep

The instrument varies the output frequency logarithmically during the sweep, changing the frequency by a constant number of octaves. It is characterized by "Start Frequency", "Stop Frequency", and "Sweep Time".

, and

Define the start frequency, stop frequency, sweep time as

function of logarithmic sweep is F =

; wherein, P and T can be expressed in the

start

stop

sweep

. The

following equations:

P = 10

= t + lg(F

lg(F

stop/Fstart

start

)/T

sweep

)/lg(P)

In the equations above, t is the duration time after the sweep starts, ranging from 0 to

; F is the current instantaneous frequency.

sweep

DG800 Pro User Guide

Figure 7.3 Logarithmic Sweep

Page 77

Sweep

Step Sweep

The instrument "steps" through a list of frequencies during the sweep. The period that the output signal dwells on each frequency is determined by "Sweep Time" and "Step Number".

When the sweep type is set to "Step", click or tap the number of steps. It ranges from 2 (default) to 1024.

Figure 7.4 Step Sweep

Step Num input field to set the

7.2 Start Frequency and Stop Frequency

The start frequency and stop frequency set the sweep's upper and lower frequency bounds. The sweep begins at the start frequency, sweeps to the stop frequency, and then resets back to the start frequency.

• To sweep up in frequency, set the start frequency less than the stop frequency.

• To sweep down in frequency, set the opposite relationship.

• To sweep in a fixed frequency, set the same start frequency and stop frequency.

After enabling the sweep mode, click or tap the Start/Center button to set the parameter to "Start". "Start" is now highlighted. This operation also toggles the parameter of the Stop/Span button to "Stop". Click or tap the corresponding input field and use the pop-up numeric keypad to set the start frequency and stop frequency. By default, the start frequency is 100 Hz and the stop frequency is 1 kHz. The range of start/stop frequency is related to the instrument model and wave type. For details, refer to

After the start/stop frequency is modified, the instrument will sweep from the specified start frequency again.

Table 5.1 Range of Continuous Waveform Frequency

7.3 Center Frequency and Frequency Span

You can also set the sweep frequency boundaries of the sweep using a center frequency and frequency span.

Page 78

Sweep

• Center Frequency = (Start Frequency + Stop Frequency)/2

• Frequency Span = Stop Frequency - Start Frequency

After enabling the sweep mode, click or tap the Start/Center button to set the parameter to "Center". "Center" is now highlighted. This operation also toggles the parameter of the

Stop/Span button to "Span". Click or tap the corresponding input

field and use the pop-up numeric keypad to set the center frequency or frequency span. By default, the center frequency is 550 Hz and the frequency span is 900 Hz. The ranges of center frequency and frequency span vary for different waveforms. Also, they are limited to each other.

The range of frequency span is affected by the center frequency. Define the upper

limit of the start/stop frequency as

frequency as

)/2.

min

(

Table 5.1 Range of Continuous Waveform Frequency

min

and the lower limit of the start/stop

max

= (

max

• When Center Frequency ≤

min

• When Center Frequency >

Frequency).

Take sine wave as an example.

center frequency is 5 MHz, the frequency span range is ±2 x (5 MHz - 1 μHz) = ±10 MHz; if the center frequency is 30 MHz, the frequency span range is ±2 x (50 MHz 30 MHz) = ±40 MHz.

TIP

To sweep up in frequency, set a positive frequency span; to sweep down, set a negative

frequency span.

7.4 Sweep Time

Sweep time specifies the time required to sweep from the start frequency to the stop frequency.

, the Frequency Span is ±2 x (Center Frequency -

, the Frequency Span is ±2 x (

is 1 μHz,

min

is 50 MHz, and

max

- Center

max

is 25 MHz. If the

Click or tap the Sweep input field and use the pop-up numeric keypad to set the sweep time. The default sweep time is 1 s and the resolution is 1 ms. The sweep time ranges from 1 ms to 250,000 s. The sweep time is related to the sweep type, trigger source, start hold time, return time, and stop hold time.

Time + Return Time + Stop Hold Time:

• Linear Sweep:

DG800 Pro User Guide

- Internal trigger:

+ 1 ms ≤ 8,000 s

- Manual trigger/external trigger:

≤ 250,000 s

= Sweep Time + Start Hold

Page 79

Sweep

• Log Sweep/Step Sweep:

≤ 500 s

After the sweep time is modified, the instrument will sweep from the specified "Start Frequency" again.

7.5 Start/Stop Hold Time

Start hold time specifies the time for the sweep to remain at the "Start Frequency". After the start hold time expires, the generator continues to sweep at varied frequencies according to the current sweep type.

Stop hold time specifies the time for the sweep to remain at the "Stop Frequency" after the generator sweeps from the "Start Frequency" to the "Stop Frequency".

You can click or tap the set the start/stop hold time. The default start/stop hold time is 0 s and the resolution is 1 ms. The time ranges from 0 s to 3600 s and is related to the sweep type, trigger source, return time, and sweep time.

Time + Stop Hold Time:

• Linear Sweep:

Start/Stop input field and use the pop-up numeric keypad to

= Sweep Time + Start Hold Time + Return

- Internal trigger:

- Manual trigger/external trigger:

• Log Sweep/Step Sweep:

After the start/stop hold time is modified, the instrument will sweep from the specified start frequency again.

7.6 Return Time

Return time specifies the time to return from the "Stop Frequency" to the "Start Frequency".

Click or tap the Return input field and use the pop-up numeric keypad to set the return time. The default return time is 0 s and the resolution is 1 ms. The time ranges from 0 s to 3600 s and is related to the sweep type, trigger source, start hold time, stop hold time, and sweep time.

Stop Hold Time:

• Linear Sweep:

+ 1 ms ≤ 8,000 s

≤ 500 s

= Sweep Time + Start Hold Time + Return Time +

≤ 250,000 s

- Internal trigger:

- Manual trigger/external trigger:

• Log Sweep/Step Sweep:

+ 1 ms ≤ 8,000 s

≤ 500 s

≤ 250,000 s

Page 80

Sweep

After the return time is modified, the instrument will sweep from the specified "Start Frequency" again.

7.7 Sweep Trigger Source

The sweep trigger source can be internal trigger, external leading edge, external trailing edge, or manual trigger. The instrument outputs a single sweep when a trigger signal is received and waits for the next trigger. Click or tap the Source dropdown button and select the trigger source. The default is "Internal".

• Internal: The instrument outputs a continuous sweep. The trigger period is

determined by the specified sweep time, return time, start hold time, and stop hold time.

• Ext Leading: The instrument receives the trigger signal from the rear-panel [AUX

IN/OUT] connector. A sweep is generated each time a TTL pulse with leading

edge is received.

• Ext Trailing: The instrument receives the trigger signal from the rear-panel [AUX

IN/OUT] connector. A sweep is generated each time a TTL pulse with trailing

edge is received.

• Manual: When "Manual" is selected, click or tap the manual trigger key

press the front-panel key to initiate a sweep output immediately.

TIP

When "Internal" or "Manual" is selected, the generator outputs a TTL-compatible signal with

the specified edge via the rear-panel [AUX IN/OUT] connector. Please refer to

Setup

7.8 Mark Frequency

For frequency sweeps, the sync signal outputs a high level at the beginning of the sweep. If you disable the "Mark" function, the sync signal goes low at the end of the sweep. If you enable the "Mark" function, the sync signal goes low at the specified marker frequency.

Trigger Output

After enabling the Sweep function, click or tap the Channel tab at the bottom to enter the Channel Setup Interface. Click or tap the the function. When it is enabled, you can click or tap the Mark Freq input field to set the mark frequency. Mark frequency is limited by the sweep "Start Frequency" and "Stop Frequency".

NOTE

For step sweep (the sweep points determined by the start frequency, stop frequency, and step

number respectively are f1, f2,……, fn, fn+1……), if the mark frequency setting is one of the

DG800 Pro User Guide

Mark on/off switch to enable or disable

Page 81

Sweep

sweep point values, the sync signal is a TTL high level at the beginning of the sweep and a low

level at the mark frequency. If the mark frequency is not equal to any of the sweep points

values, the sync signal becomes a low level at the sweep point which is closest to this mark

frequency (sweep up/down). Take sweeping down as an example. If the mark frequency is set

to 1 MHz and the sweep points are 0.99 MHz and 1.01 MHz, then 0.99 MHz will be selected as

the mark frequency to be applied to the digital system.

Page 82

Burst

DG800 Pro can output a waveform for a specified number of cycles, called a burst. You can use Sine, Square, Ramp, Pulse, Arb (except DC), and Noise (only available for "Gated" Burst) to generate burst waveforms.

Click or tap the "Output Mode" drop-down button to select "Burst" to enter the Burst Setting Interface, as shown in the figure below. You can click or tap one of the tabs at the bottom to enter the Continuous Setting Interface, Burst Setting Interface, or Channel Setup Interface. For Continuous Setting Interface and Channel Setup Interface, please refer to only describes the burst settings.

TIP

The Burst mode cannot be enabled when the fundamental frequency is less than or equal to

125 μHz.

Continuous

and

Channel Setup

respectively. This chapter

Burst Type

DG800 Pro User Guide

Tabs

Figure 8.1 Burst Setting Interface

Page 83

8.1 Burst Type

DG800 Pro can output two types of bursts: N-Cycle Burst (default) and Gated Burst. In the Burst Setting Interface ( button to select "NCycle" or "Gated". The table below illustrates the trigger sources and waveform parameters available for the two burst types.

Burst Type Trigger Source Burst Parameters

Figure 8.1

Burst

), click or tap the "Burst Type" drop-down

Userdefined

N-Cycle Burst

Infinite

Gated Burst External Trigger Starting Phase, Polarity, Idle Level

N-Cycle Burst

In N-Cycle Burst mode, the instrument outputs a waveform for a specified number of cycles (burst count) each time trigger is received. You can also set the burst count to "Infinite". Available waveform functions for N-Cycle burst include Sine, Square, Ramp, Pulse, and Arb (except DC). Click or tap the count.

• Infinite: Infinite Burst sets the burst count to "infinite". The instrument outputs a

continuous waveform when a trigger signal is received.

Internal/External/ Manual Trigger

External/Manual Trigger

Delay, Burst Period, Source, Trigger Output (only available for manual trigger and internal trigger), Phase, Cycles, Idle Level

Delay, Source, Trigger Output (only available for manual trigger), Phase, Cycles, Idle Level

Cycles drop-down button to set the burst

• User: Click or tap the

set the burst count. It ranges from 1 (default) to 1 M. If you change the burst count, the instrument automatically increases the burst period to accommodate the burst count (but the waveform frequency will not be changed).

Gated Burst

In Gated Burst mode, the generator controls the waveform output based on the external signal level from the rear-panel [AUX IN/OUT] connector. Available waveform functions for Gated burst include Sine, Square, Ramp, Pulse, Noise, and Arb (except DC). When the gate signal is "true", the instrument outputs a continuous waveform. When the gate signal is "false", the instrument first stops the current waveform output and remains at the voltage level corresponding to the "Idle Level" setting.

Cycles input field and use the pop-up numeric keypad to

Page 84

Burst

8.2 Burst Delay

Burst delay, which is only available for N-Cycle Burst mode, is the duration from the time when the instrument receives the trigger signal to the time when it starts to output the burst signal.

Click or tap the Delay input field and use the pop-up numeric keypad to set the delay. The default delay is 0 s and the resolution is 0.1 ns. The range of burst delay is related to the trigger source:

• Manual/external trigger: 0 s to 20 s.

• Internal trigger: 0 s to (

than or equal to 20 s.

: burst period

burst

: period of basic waveform (e.g. Sine and Square)

wave

: burst count

cycle

NOTE

[1]: ⌈x⌉ indicates that x is rounded up.

8.3 Burst Phase

In Burst mode, the phase of the basic waveform is no longer in effect. The phase characteristics are determined by the burst phase. When the burst type is set to "NCycle", click or tap the Phase input field to set the burst phase. When the burst type is set to "Gated", click or tap the Start Phase input field to set the phase. It ranges from -360° to 360°, and the default is 0°. The resolution is 0.01°.

burst

- ⌈

wave

x N

÷ 6.4 ns⌉ x 6.4 ns - 4 μs)

cycle

[1]

, and less

• For Sine, Square, Pulse, and Ramp, 0° is the point at which the waveform crosses

• Burst phase setting is not available for noise.

• For arbitrary waveforms, 0° is the first waveform point.

TIP

In Burst mode, the phase of the basic waveform is fixed to 0° and cannot be modified.

DG800 Pro User Guide

0 V (or DC offset) in a positive-going direction.

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8.4 Burst Period

Burst period is only available for internally triggered N-Cycle burst mode (userdefined burst count). Burst period is defined as the time from the start of a burst to the time when the next burst starts.

Click or tap the Burst Period input field and use the pop-up numeric keypad to set the period. It ranges from 4 μs to 8 ks and the default is 10 ms. The resolution is 0.1 ns.

Burst

• Burst Period ≥ ⌈(Burst Count x Waveform Period) ÷ 6.4 ns⌉ x 6.4 ns + 4 μs

• If the burst period is too short, the generator will increase it automatically to

allow the output of the specified number of cycles.

NOTE

[1]: ⌈x⌉ indicates that x is rounded up.

8.5 Burst Trigger Source

Available trigger sources for bursts include internal trigger, external leading edge, external trailing edge, and manual trigger. Click or tap the Source drop-down button and select the trigger source. The default is "Internal".

• Internal: Internal trigger is only available for N-Cycle Burst with user-defined

burst count. When internal trigger is selected, the instrument outputs a burst of the specified cycles. The rate at which the burst is generated is determined by

Burst Period

outputs the idle level and waits for the next trigger event.

. After completing the specified number of cycles, the instrument

[1]

• Ext Leading: When external leading edge is selected, the instrument receives the

trigger signal from the rear-panel [AUX IN/OUT] connector. A burst is generated each time a TTL pulse with leading edge is received.

• Ext Trailing: When external trailing edge is selected, the instrument receives the

trigger signal from the rear-panel [AUX IN/OUT] connector. A burst is generated each time a TTL pulse with trailing edge is received.

• Manual: Manual trigger is only available for N-Cycle Burst mode. When manual

trigger is selected, click or tap the manual trigger key

or press the front-panel output of the corresponding channel is not enabled, the trigger will be ignored.

key to initiate a burst output immediately. If the

Figure 8.1

interface

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Burst

TIP

When "Internal" or "Manual" is selected, the generator outputs a TTL-compatible signal with

the specified edge via the rear-panel [AUX IN/OUT] connector. Please refer to

Setup

8.6 Gated Polarity

Gated polarity is only available for Gated Burst mode. It enables the instrument to output burst signals at a high level or low level. The gate signal is applied to the rearpanel [AUX IN/OUT] connector.

In the Burst Setting Interface, click or tap the "Burst Type" drop-down button to select "Gated" and enter the Gated Burst Setting Interface. Click or tap the down button to select "Positive" or "Negative". The default is "Positive".

• Positive: When the gate signal is a high level, the instrument outputs a

continuous waveform. When the gate signal is a low level, the instrument first stops the waveform output of the current period and remains at the voltage level set in the "Idle Level".

Trigger Output

Polarity drop-

• Negative: When the gate signal is a low level, the instrument outputs a

continuous waveform. When the gate signal is a high level, the instrument stops the current output and remains at the voltage level set in the "Idle Level".

8.7 Idle Level

In Burst mode, the output will not be turned off when there is no burst output but will remain at a specified voltage level, which is called the idle level. In N-Cycle Burst mode, the generator outputs a carrier waveform with a specified number of cycles and then continues to output the idle level until a burst period is complete, as shown in the figure below. In Gated Burst mode, the instrument will output the idle level when the gate signal is "false".

Burst Period

Idle Level

After enabling the Burst function, in Burst Setting Interface, click or tap the Idle Level drop-down button to select the idle level.

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Carrier Period*Burst Count

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Burst

• 1st Pt: Select the level at the first point of the carrier waveform as the idle level.

It is not available for Square and Pulse.

• Top: Select the level at the top point of the carrier waveform as the idle level.

• Center: Select the level at the center point of the carrier waveform as the idle

level.

• Bottom: Select the level at the bottom point of the carrier waveform as the idle

level.

• User: Select the specified position as the idle level. When "User" is selected, click

or tap the

Idle Level input field and use the pop-up numeric keypad to set the

idle level. It ranges from 0 to 65,535, and the default is 0.

TIP

When the noise is the carrier waveform, the idle level is fixed to 32768 and cannot be

modified.

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Advanced Mode

DG800 Pro supports two Advanced output modes: Arb and Sequence.

In the interface as shown in button to select "Advanced" and access the Advanced Waveform Setting Interface, as shown in the figure below. You can click or tap one of the tabs at the bottom to access the Advanced Waveform Setting Interface or Channel Setup Interface. For Channel Setup Interface, please refer to the advanced waveform settings.

Figure 4.6

, click or tap the "Output Mode" drop-down

Channel Setup

. This chapter only describes

Sub Mode

TIP

The Advanced mode on/off status of CH1 and CH2 is always synchronized for two-channel

models.

DG800 Pro User Guide

Tabs

Figure 9.1 Advanced Waveform Setting Interface

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9.1 Arb

DG800 Pro supports Arb output in both Continuous mode and Advanced mode. Based on the SiFi technology, DG800 Pro can output the arbitrary waveforms point by point according to the specified sample rate without losing any important points in the Advanced mode. For the Arb output in the Continuous mode, refer to

Arbitrary Waveforms

In the Advanced Waveform Setting Interface, click or tap the "Sub Mode" drop-down button to select "Arb" to enter the Arb Setting Interface in the Advanced mode, as shown in the figure below.

Advanced Mode

To Output

Waveform Preview/Selection

Figure 9.2 Arb Setting Interface

Select the Data Source

In the Arb Setting Interface, click or tap the "Waveform Preview/Selection" area and select

• Built-in waveforms: stored in the instrument's internal non-volatile memory,

• Stored waveforms: Arb files (*.arb/*.csv/*.txt) stored in the instrument's internal

Built In Wforms or Stored Wforms in the displayed menu.

containing 11 types of waveforms: Basic, Common, Engine, Seg Mod, Bioelect, Medical, Standard, Maths, Trigonome, Anti Trigonome, and Window Function. Basic waveforms include Sine, Square, Ramp, and Noise. For details

about other built-in waveforms, refer to

memory (C disk) or in the external memory (D disk). After "Stored Wforms" is selected, select the Arb file that you want to load and then click or tap After loading, the data in the current volatile memory space will change. For descriptions of the three Arb file formats, refer to

Waveforms

Table 5.2 Built-in Waveforms

To Output Arbitrary

Load.

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Advanced Mode

TIP

• When built-in waveforms are selected, the waveform length is fixed to 16,384 pts. When

• DG800 Pro does not support loading Arb files with file headers. It is recommended to use

Set the Filter Mode

"Stored Wforms" is selected, the available Arb length ranges from 32 pts to 2 Mpts (8

Mpts optional).

Ultra Station 00.02.01.00.01 or later to generate Arb waveforms and untick the "Save File

With Header" box when saving the file.

Click or tap the

• Normal: It has wide and flat frequency response as well as short edge time, but

the step response produces a large overshoot.

• Step: It has more ideal step response, narrow bandwidth, longer rise/fall time,

and longer edge time.

• Interpolation: It guarantees the output of signals with no distortion at all.

Set the Waveform Parameters

Click or tap the Sample Rate input field to set the sample rate for the Arb waveform. The available range is from 1 μSa/s to 312.5 MSa/s. The output frequency is automatically calculated according to the number of waveform points: Output Frequency = Sample Rate/Waveform Points.

For other waveform parameters, refer to

9.2 Sequence

A sequence is a combination of multiple individual waveforms in order. In Sequence mode, you can self-define the sequence and save the edited sequence to internal memory or external storage device (*.seq format).

Filter drop-down button to select the filter mode.

Continuous

In the Advanced Waveform Setting Interface, click or tap the "Sub Mode" drop-down button to select "Sequence" to enter the Sequence Setting Interface, as shown in the figure below.

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Sequence Preview/Editing

Figure 9.3 Sequence Setting Interface

Advanced Mode

9.2.1 To Edit Sequence

In the Sequence Setting interface as shown in Preview/Editing" area to open the sequence editing table, as shown in the figure below.

• SN: displays the step number from 1 to 64. Slide the table left and right to view

all the steps.

Figure 9.3

, click or tap the "Sequence

Figure 9.4 Sequence Editing Table

• WaveForm: displays the wave type for step n. Click or tap the cell in this row to

set the waveform for the specified step.

• Loop: displays the repeat count for step n. Click or tap the cell in this row to set

the repeat count for the specified step.

• Length: displays the waveform length for step n. Click or tap the cell in this row

to set the length of the specified step (built-in waveform).

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Advanced Mode

After the sequence function is enabled, by default, the table has a Sine step whose loop is 1. The loops of other steps are 0. You can follow the steps below to edit the sequence.

Click or tap the cell in the WaveForm row to select the waveform type for the specified step in the pop-up menu. Built-in waveforms and stored waveforms (*.arb/*.csv/*.txt) are supported. The available data length of the stored waveform that can be loaded: 32 pts to 2 Mpts (8 Mpts/CH optional).

TIP

For descriptions of the three Arb file formats, refer to

To Output Arbitrary Waveforms

2. Click or tap the cell in the Loop row to set the loop with the pop-up numeric

keypad for the specified step. The maximum value is 256. When the entry loop is set to 0, the entry has no output.

When selecting the built-in waveform, click or tap the cell in the Length row to set the data length of the specified step with the pop-up numeric keypad. The data length ranges from 32 pts to 2 Mpts (8 Mpts/CH optional). The total points of all valid steps (the loop is not 0) in the current sequence cannot exceed 2 Mpts (8 Mpts/CH optional).

TIP

When selecting the stored waveforms, you cannot set the data length.

4. After editing, click or tap Apply to confirm modifications and set the sequence as

the waveform of the current channel.

If you want to clear the current step configurations, click or tap

Clear and the table

will be restored to its default state.

9.2.2 To Save/Load Sequence

Save Sequence

After editing a sequence, you can save the sequence to the internal memory or external storage device.

1. In the interface as shown in

displayed.

2. Enter the target path in the internal/external memory. Click or tap

virtual keypad is displayed.

3. Set the sequence name with the pop-up virtual keypad and then click or tap Enter

to save the sequence. Then you can see the sequence that you saved under the target path.

DG800 Pro User Guide

Figure 9.4

, click or tap Save and the "Store" menu is

Save and the

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Advanced Mode

Load Sequence

You can load the sequence files stored in the internal memory or external storage device.

1. In the interface as shown in

Figure 9.4

displayed.

2. Enter the target path in the internal/external memory and tick the sequence file

(*.seq) that you want to load.

3. Click or tap

Load and the instrument will open the file in the sequence editing

table and apply to the current channel.

TIP

For general operations of the "Store" menu, please refer to

9.2.3 To Set Sequence Parameters

In the interface as shown in

Sample Rate

Click or tap the Sample Rate input field to set the sample rate for the sequence. The sample rate ranges from 1 μSa/s to 312.5 MSa/s, and the default is 1 MSa/s.

Figure 9.3

, you can also set the following parameters.

, click or tap Load and the "Store" menu is

Storage Management

Amplitude/High Level

Refer to

To Output Sine Wave

to set the amplitude/high level. Note that Vrms and

dBm are not available for the unit of the sequence amplitude.

Offset/Low Level

Refer to

To Output Sine Wave

to set the offset/low level.

Filter Mode

Click or tap the

Normal: It has wide and flat frequency response as well as short edge time, but

•

Filter drop-down button to select the filter mode.

the step response produces a large overshoot.

• Step: It has more ideal step response, narrow bandwidth, longer rise/fall time,

and longer edge time.

• Interpolation: It guarantees the output of signals with no distortion at all.

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Frequency Counter

DG800 Pro series provides the frequency counter function. It allows you to measure the frequency, period, duty cycle, positive pulse width and negative pulse width for the external input signal. The counter measuring signal is applied to the front-panel [Counter] connector. You can enter the counter setting menu in the following ways (for two-channel models):

• Click or tap the Counter label at the bottom of the interface to access the

"Counter" menu.

• Press the front-panel

counter function.

When the counter menu is enabled (for two-channel models), the original CH2 configuration area is replaced by the counter menu, as shown in the figure below.

Click or tap the CH2 channel label or press the front-panel counter menu.

key to access the "Counter" menu.

key to access the "Counter" menu and enable the

to disable the

DG800 Pro User Guide

Figure 10.1 Counter Menu

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1. Counter On/Off Identifier

2. Measurement Item Drop-down button

3. Gate Time Drop-down button

4. Operating Status Drop-down button

5. Single Measurement Key

10.1 To Enable the Counter

Press the front-panel key to enable the counter function. You can also click or tap the counter on/off identifier in the counter menu to enable the counter function. After the counter is enabled, "ON" will be displayed in the counter on/off identifier and the counter label is highlighted.

Frequency Counter

TIP

When the counter is enabled, the output of CH2 will be disabled for two-channel models. You

are not allowed to configure CH2.

10.2 To Set the Counter

In the "Counter" menu, you can set the following parameters for the counter.

Measurement Parameter

Available parameters include frequency (default), period, duty cycle, positive pulse width, and negative pulse. In the "Counter" menu, click or tap the "Measurement Item" drop-down button to select the measurement item. The selected measurement item is displayed. When the statistical function is enabled, the statistical information of this item will be displayed (

Operating Status

In the "Counter" menu, click or tap the "Operating Status" drop-down button to set the counter operating status to "Run", "Stop", or "Single".

Statistical Function

• Run: measures the input signal continuously based on the current configuration.

• Single: performs a single measurement and then enters the "Stop" state. You can

also click or tap the key to perform a single measurement (in any operating status).

• Stop: completes the current measurement and then stops.

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Frequency Counter

Gate Time

In the "Counter" menu, click or tap the "Gate Time" drop-down button to set the gate time to Auto, 1 ms, 10 ms, 100 ms, 1 s, 10 s, 100 s, 1000 s, or 10,000 s. The default is Auto.

Input Impedance

In the "Counter" menu, click or tap the Ω" or "1 MΩ" (default).

High Frequency Suppression

When the input impedance is set to 1 MΩ, the HF Suppression function is available. In low-frequency signal measurements, this function can be used to filter the highfrequency components (>60 kHz) in a way to improve the measurement accuracy.

In the "Counter" menu, click or tap the HFSuppre on/off switch to enable or disable the HF Suppression function.

Coupling Type

In the "Counter" menu, click or tap the "AC". Note that the coupling type is fixed to "DC" when the input impedance is set to 50 Ω.

• DC: DC coupling, both the DC and AC components of the signal under test can

pass the channel.

• AC: AC coupling, the DC components of the signal under test are eliminated.

Input Impe drop-down button to select "50

Coupling drop-down button to select "DC" or

Frequency Range

In the "Counter" menu, click or tap the frequency range.

• When the input impedance is set to 50 Ω, you can set the frequency range to 0

Hz~250 MHz, 250 MHz~500 MHz.

• When the input impedance is set to 1 MΩ, the frequency range is fixed to 0 Hz~

250 MHz.

Statistical Function

Please refer to

Statistical Function

10.3 Statistical Function

The statistical function can calculates the maximum, minimum, average, and standard deviation of the current measurement parameter automatically and displays the variation of the measurement values in "Digital" or "Curve" display mode. In the counter setting interface (

Figure 10.1

Freq Range drop-down button to select the

), click or tap the Statis on/off switch to enable

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Frequency Counter

or disable the statistical function. After the statistical function is enabled, you can click or tap the "Statis" tab to enter the statistical interface, as shown in the interface below.

Figure 10.2 Counter Statistical Interface

Click or tap the

Clear key to clear the current results. The count will restart from 1.

TIP

The maximum count is 256 for the counter measurements. If the measurement count exceeds

256, the instrument will clear measurement data and restart the count.

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Channel Copy

DG800 Pro supports the Channel Copy function between two channels, allowing you to copy the states of one channel to the other one. DG821 Pro should have the twochannel upgrade option installed. The copy information is as shown in the table below.

Click or tap menu. You can perform the copy operation between two channels:

• Click or tap CH1 > CH2 to copy the states and waveforms of CH1 to CH2.

• Click or tap CH2 > CH1 to copy the states and waveforms of CH2 to CH1.

• Click or tap Swap to exchange the states of CH1 and CH2.

TIP

The Channel Copy function is disabled when channel track is enabled.

Channel Copy at the bottom of the screen to open the channel copy

Table 11.1 Dual-channel operation parameters

(√ indicates available; × indicates not available; * indicates available in certain conditions)

Parameter Track Copy

Basic Functions

Channel Output State × ×

Output Mode √ √

Basic Waveform √ √

Frequency √ √

Frequency Coupling Disabled Disabled

Period √ √

Amplitude √ √

Amplitude Coupling Disabled Disabled

Offset √ √

Phase √ √

Phase Coupling Disabled Disabled

Square Duty Cycle √ √

Ramp Symmetry √ √

Pulse Width √ √

Rising Edge √ √

Trailing Edge √ √

Arb Type √ √

Harmonic Type √ √

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Parameter Track Copy

Harmonic Order √ √

Harmonic Combination √ √

Order Harmonic Amplitude √ √

Order Harmonic Phase √ √

Combine Harmonic Amplitude List

√ √

Combine Harmonic Phase List √ √

Burst

State √ √

Mode √ √

(Trigger) Source √ √

Delay √ √

Cycles √ √

Period √ √

Phase √ √

Gate Polarity √ √

Idle Level √ √

Sweep

State √ √

Mode √ √

Trigger Source √ √

Start Frequency √ √

Stop Frequency √ √

Center Frequency √ √

Frequency Span √ √

Start Hold Time √ √

Stop Hold Time √ √

Sweep Time √ √

Return Time √ √

Mark On/Off √ √

Mark Frequency √ √

Modulation

Modulation Type √ √

Modulation Source √ √

Modulating Waveform √ √

Modulation Frequency √ √

Modulation Depth √ √

DSSC √ √

Frequency Deviation √ √

Phase Deviation √ √

Duty Cycle Deviation √ √

Width Deviation √ √

Channel Copy

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Channel Copy

Parameter Track Copy

Modulation Polarity √ √

Modulation Rate √ √

Modulation Amplitude √ √

Hop Frequency √ √

Phase √ √

SUM Waveform √ √

SUM Frequency √ √

SUM Ratio √ √

Channel

Sync On/Off √ √

Sync Port √ √

Sync Polarity √ √

Invert √ √

Impedance √ √

Trigger output √ √

DG800 Pro User Guide