Hantek HDG3042B, HDG3102B, HDG3012B User guide

HDG3000B series

Arbitrary waveform signal generator

User Manual

2022.05

Warranties and Declarations

Copyright

The copyright of this document belongs to Qingdao Hantek Electronics Co., LTD.

Statement

Qingdao Hantek Electronics Co., Ltd. reserves the right to amend this document without prior notice. Qingdao Hantek Electronics Co., Ltd. promises that the information provided is correct and reliable but does not guarantee that this document is free from errors. Before using this product, please make sure that the specifications of relevant technical documents are the latest effective version. If you use documents or products of Qingdao Hantek Electronics Co., LTD and need products, patents or works of third parties to cooperate with them, you shall be responsible for obtaining the consent and authorization of the third parties. The above consent and authorization shall not be the liability of Hantek.

Product certification

Hantek certified HDG3000B series arbitrary waveform signal generators to meet China's national industry standards and has passed the CE certification.

Contact us

If you have any questions when using the products of Qingdao Hantek Electronics Co., LTD., you can obtain service and support through the following ways: Email: service@hantek.com, support@hantek.com Website: http://www.hantek.com

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Figures

Figure 4.1 Front view ............................................................................................ 9

Figure 4.2 Top view............................................................................................. 10

Figure 4.3 Front Panel ........................................................................................ 12

Figure 4.4 Rear Panel ........................................................................................ 14

Figure 4.5 User Interface .................................................................................... 15

Figure 5.1 Before ................................................................................................ 21

Figure 5.2 After ................................................................................................... 21

Figure 5.3 Setting Interface ................................................................................ 25

Figure 5.4 Output Waveform .............................................................................. 25

Figure 6.1 Arbitrary Interface ................................................................ .............. 26

Figure 8.1 OSK Modulation ................................................................................ 54

Figure 10.1 N Cycle Burst................................................................................... 63

Figure 10.2 Infinite Cycle Burst ........................................................................... 63

Figure 10.3 Gate Burst ....................................................................................... 64

Figure 11.1 Counter ............................................................................................ 67

Figure 12.1 Store Interface ................................................................................. 68

Figure 12.2 New File Interface ............................................................................ 69

Figure 12.3 Rename Interface ............................................................................ 70

Figure 13.1 Impedance ....................................................................................... 72

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Tables

Table 3.1 Knob ...................................................................................................... 7

Table 3.2 Mode ..................................................................................................... 8

Table 6.1 Build-In waveform ............................................................................... 30

Table 10.1 Table Burst type ................................................................................ 62

Safety requirements

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1 Safety requirements

1.1 Summary of general safety matters

Read the following safety precautions carefully to avoid injury and to prevent damage to this product or any product connected. To avoid possible dangers, please use this product in accordance with the regulations.

⚫ Only professionally authorized personnel can perform repairs.

⚫ Use the right power cable.

Use the power cable approved by the country in which the product is used only.

⚫ Connect and disconnect correctly.

Before connecting the probe to the circuit being measured, please connect the probe to the oscilloscope first. Before disconnecting the probe from the oscilloscope, please disconnect the probe and the circuit under test first.

⚫ Ground the product.

To avoid electric shocks, the product is grounded through a grounding conductor of the power cable. The grounding conductor must be connected to the ground before connecting the input or output terminals of the product. Ensure that the product is properly grounded.

⚫ Connect the probe properly.

The ground wire of the probe is the same as the ground potential. Do not connect the ground wire to high voltage.

⚫ View all terminal rating values.

To avoid fire or excessive current, please check all rating values and signs on the product. Please consult the product manual for details of the rating values before connecting the product.

⚫ Do not operate with the cover open.

Do not run the product with the cover or panel open.

⚫ Avoid circuit exposure.

Do not touch exposed connectors and components after power is switched on.

⚫ Do not operate if the product is suspected to be faulty.

If you suspect that the product has been damaged, please ask qualified maintenance personnel to check it.

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⚫ Maintain proper ventilation.

⚫ Do not operate in a humid environment.

⚫ Do not operate in inflammable or explosive environment.

⚫ Please keep the product surface clean and dry.

Warning:

Equipment that meets Class A requirements may not provide adequate protection

for broadcast services in residential environments.

1.2 Safety terms and symbols

Safety terms in this manual:

Dangerous

Indicates that immediate damage may be caused to you if you perform this operation.

Warning:

Indicates that it may not cause immediate damage to you if you perform this operation.

Note

Indicates that you may cause damage to this product or other properties if you do so.

Safety terms on the product:

Warning:

Indicates a potential hazard to you if you do not perform this operation.

Safety symbols on the product:

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1.3 Measurement category

Measurement category

This instrument can be used for measurement under class I.

Warning:

This instrument is only allowed to be used in the specified measurement class. Measurement class definition

⚫ Class I refers to measurements taken on a circuit not directly connected to

the main power supply. For example, measurements made on circuits that are not

exported from a main power supply, especially from a protected (internal) main power supply. In the latter case, the instantaneous stress will change. Therefore, the user should understand the instantaneous capacity of the instrument.

⚫ Class II refers to measurements taken on a circuit directly connected to

low-voltage instruments. For example, measurements made on household

appliances, portable tools, and similar equipment.

⚫ Class III refers to measurements taken on construction equipment. For

example, measurements made on switchboards, circuit breakers, circuits (including cables, busbars, junction boxes, switches, sockets) in fixed equipment, as well as equipment for industrial use and certain other equipment (for example, fixed motors permanently connected to fixed instruments).

⚫ Class IV refers to measurements taken at the source of low-voltage

equipment. For example, measurements made on electricity meters, primary

overcurrent protection equipment, and pulse control units.

1.4 Working conditions

Temperature

Operating temperature: 0℃ - 45℃ Storage temperature: 20℃ - 60℃

Humidity

≤+104℉(≤+40°C): relative humidity≤90% 106℉~122℉ (+41°C ~50°C): relative humidity≤60%

Warning:

To avoid the danger of short circuit or electric shock, do not operate the instrument in a humid environment.

Altitude

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When operating: below 3,000 meters. When not operating: below 15,000 meters.

Installation (over voltage) Class This product is powered by a main power source that

complies with Installation (over voltage) Class II.

Warning:

Make sure that no overvoltage (such as that caused by lightning) reaches the product. Otherwise the operator may be in danger of receiving an electric shock.

Installation (overvoltage) Class definition

Class I refers to the signal level, which is applicable to the measuring terminal of the instrument connected to the source circuit. Measures have been taken to limit the instantaneous voltage to the corresponding low level. Class II refers to the local distribution level, which is applicable to instruments connected to the mains (AC) supply.

Degree of pollution

Class 2

Pollution level definition

⚫ Level 1: No pollution, or only dry non-conductive pollution. This pollution level has

no impact. For example: clean room or air-conditioned office environment.

⚫ Level 2: Generally, only dry non-conductive pollution. Temporary conduction due to

condensation may sometimes occur. For example: general indoor environment.

⚫ Level 3: Conductive pollution, or dry non-conductive pollution becoming conductive

due to condensation. For example, an outdoor environment with a canopy.

⚫ Level 4: Permanent conductive pollution through conductive dust, rain, or snow.

For example: outdoor places.

Security level

Level 1 - Grounded products

1.5 Maintenance and cleaning

Maintenance:

Do not make the LCD exposed to direct sunlight for a long time when placing the oscilloscope.

Cleaning:

Regularly check the oscilloscope and probe according to the requirements of the operating conditions, please follow the following steps to clean the outer surface of the

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instrument:

1) Using a lint-free cloth to remove the dust from the outside of the oscilloscope and probe. Please be careful to avoid scratching the smooth display filter material.

2) Using a soft cloth soaked with water to clean the oscilloscope. For more thoroughly clean, use 75% isopropyl alcohol aqueous solvent

Note:

To avoid damage to the oscilloscope or the surface of the probe, please do not use any corrosive reagent or chemical cleaning reagent.

Warning:

Before repowering, please make sure the instrument is completely dry, to avoid

electrical short circuit or even personal injury caused by moisture.

1.6 Environmental Precautions

The following sign indicates that this product conforms to the requirements set out by the WEEE Directive 2002/96/EC.

Equipment recycling:

Producing the instrument requires the extraction and use of natural resources. Some substances contained in the instrument may be harmful to the environment or human health if the product is not disposed of properly. To avoid the release of harmful substances into the environment and reduce the use of natural resources, it is recommended that appropriate methods be used to recycle this product to ensure that most of the materials can be correctly reused.

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2 Product features

Product features

⚫ Frequency range(CH1/CH2)：1μHz ~ 100MHz/80MHz/60MHz/40MHz/25MHz; ⚫ Sampling rate up to 300MSa/s, 16 bits vertical resolution to ensure the accuracy of

waveform amplitude;

⚫ Double channels with equal performance, equivalent to two independent signal

sources;

⚫ Storage depth up to 2M to create more waveform cycles as well as the better

waveform details;

⚫ Rich modulation functions, supporting for AM, DSB - AM, FM, PM, ASK, FSK and

PSK, BPSK, QPSK, 3 FSK, 4 FSK, OSK and PWM, etc.;

⚫ There are more than 160 arbitrary signals such as exponential rise, exponential fall,

ECG signal, Gaussian, half orthogonality, Lorentz, dual tone multi-frequency, DC voltage, etc.

⚫ 4.3-inch color TFT LCD screen, clear and intuitive user interface; ⚫ Built-in high resolution 80MHz frequency meter; ⚫ Standard communication interface: front USB Host and rear USB Device; ⚫ Built-in harmonic generator function with 16 harmonic frequency, output harmonic

with a specified number of times, amplitude and phase, usually used in harmonic detection equipment or the testing of harmonic filtering equipment.

HDG3000B has 5 functions, that are arbitrary waveform generator, pulse generator, function generator, harmonic generator, frequency meter all in one; Using DDS (direct digital frequency synthesis) technology, which can generate stable, pure and low distortion output signal; User-friendly interface design and keyboard layout bring users extraordinary experience; Rich configuration interfaces can easily realize computer control, providing more solutions to user measurement.

Document overview

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3 Document overview

This document is used to guide the user to quickly understand the front and back panels, user interfaces, and basic operation methods of the HDG3000B series signal generators.

Tip:

The latest version of this manual can be downloaded at (http://www.hantek.com).

Document number:

202205

Software version:

Software upgrade may change or increase product functionalities, please pay attention to Hantek website for the latest version.

Document format conventions:

1 Keys

Use "square brackets + text (bold)" to represent front panel keys, such as [Utility] for the "Utility" key.

2 Menu

Use blue menu text (bold) to represent a menu option, for instance, Basic Settings indicates clicking the "Basic Settings" option on the current operation interface to enter the configuration menu of "Basic Settings".

3 Operation flow Use ">" to indicate the next operation, for instance, [Utility] > Store indicates clicking

[Utility] and then click the Store function key. 4 Knob

Symbol

Knob

Multi-function knob

Table 3.1 Knob

Document content conventions:

The HDG3000B signal generator contains the following models.

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Model

Number of channels

Maximum frequency

CH1/CH2 sampling rate

HDG3102B

2

15MHz

300MS/s

HDG3022B

2

25MHz

300MS/s

HDG3042B

2

40MHz

300MS/s

HDG3062B

2

60MHz

300MS/s

HDG3082B

2

80MHz

300MS/s

HDG3102B

2

100MHz

300MS/s

Table 3.2 Mode

Quick start

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4 Quick start

4.1 General checking

Check the shipping package

After receiving the oscilloscope, please follow the following steps to check the instrument: Check whether there is any damage caused by transportation: If the packaging cartons or protective foam pads are seriously damaged, please keep them until the whole machine and accessories pass the electrical and mechanical testing.

Check the accessories

The details of the accessories are provided in Appendix A: Accessories at the end of the user manual. If you find any accessory missing or damaged, please contact the dealer responsible for this business.

Check the machine

If you find the instrument is damaged, not working properly, or unable to pass the performance test, please contact the dealer responsible for this business.

4.2 Appearance and dimension

Figure 4.1 Front view

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Figure 4.2 Top view

4.3 Preparation before use

4.3.1 Connect the power supply

Connect the power cord as needed. The input AC power specifications of this series of signal generators are: 100-120 VAC

(±10%), 45-440 Hz or 120-240 VAC (±10%), 45-66Hz. Please use the supplied power cord to connect the machine to AC power.

Press the power switch in the lower left corner of the front panel to turn on the instrument. If the instrument does not turn on, verify that the power cord is securely connected and that the instrument is connected to a live power source.

Switch：

To turn off the instrument, press the power switch.

Warning：

To avoid electric shock, make sure the instrument is properly grounded.

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4.3.2 Adjust the Handle

To adjust the handle of the instrument, hold both sides of the handle and pull them outward, then rotate the handle.

4.3.3 Set system language

The signal generator supports Chinese and English menus, and provides corresponding help information, prompt information and interface display.

Press [Utility] > Language to select the desired language. When "Chinese" or "English" is selected, the menu, help information, prompt message and interface are displayed in Chinese or English respectively.

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4.4 Product Introduction

This chapter describes the front and rear panels and user interface of the machine.

4.4.1 Front Panel

Figure 4.3 Front Panel

1. On/Off Switch

2. Menu Softkey

Correspond to the left menus respectively. Press any softkey to activate the corresponding menu.

3. Function Keys

⚫ [Wave]: Select the waveform that the current channel will output. ⚫ [Setting]: Set the parameters of the waveform that the current channel will

output.

⚫ [Utility]: Auxiliary functions and system Settings. Used to set auxiliary function

and system parameters.

⚫ [Mod]: Enable generate modulated waveforms. A variety of analog and digital

modulation methods are provided to generate AM, DSB-AM, FM, PM, ASK, FSK, PSK, BPSK, QPSK, 3FSK, 4FSK, OSK and PWM modulation signals.

⚫ [Sweep]: Enable generate sweep signals of "sine", "square", "ramp", "pulse",

"harmonic" and "arbitrary (except DC)".

⚫ [Burst]: Enable generate burst signals of "sine", "square", "ramp", "pulse",

"harmonic" and "arbitrary (except DC)".

⚫ [Trigger]: Manually triggered button. In sweep or burst mode, used to manually

trigger CH1 or CH2 to produce a sweep or burst signal (only when 1Output or 2Output is turned on).

⚫ [CH1/2]: Channel switching. Press this button to switch menu setting channel.

After selecting CH1, users can set the waveforms, parameters, and configuration of CH1.

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After selecting CH2, users can set the waveforms, parameters, and configuration of CH2.

4. CH1/CH2 Output Connector

BNC connector with 50Ω nominal output impedance. When 1Output or 2Output is enabled (the backlight turns on), this connector output waveform according to the current configuration of the channel.

5. Channel ON/OFF:

Enable or disable the output of CH1 or CH2.

6. Direction Keys

When using the knob and direction keys to set parameters, the direction keys are used to switch the digits of the parameter. During file name input, they are used to move the cursor.

7. Knob

During parameter setting, it is used to increase (clockwise) or decrease (counterclockwise) the current highlighted number. It is used to select file storage location or select the file to be recalled when storing or recalling file. It is used to switch the character in the soft keyboard when entering filename.

8. Numetric Keypad

It is used to input parameters and consists of numbers (0 to 9), decimal point (.), operators (+/-). Note that if a negative is required, please input an operator "-" before the numbers. (For the use method of the numeric keypad, refer to the introduction in "Parameter Setting Method").

9. LCD

4.3-inch color TFT LCD screen, display the current function menu and parameter settings, system state as well as prompt messages.

10. Default

It is used to restore the instrument state to the factory default settings.

11. Help

To get the context help information about any front-panel key or menu softkey, press this key and then press the button you need to get the help information for.

12. USB HOST Interface

External storage device (USB disk) can be accessed for saving or loading settings files. The file system format of the external storage device is FAT32 and the memory is no more than 32G.

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4.4.2 Rear Panel

Figure 4.4 Rear Panel

1. CH1/CH2 Sync/ExtMod/Trig Connector

BNC connector with 50Ω nominal output impedance and 1KΩ nominal input

impedance. Its function is determined by the current working mode. ⚫ Sync:When 1Output is enabled, this connector outputs the sync signal

corresponding to the current settings of CH1 (refer to the introduction in

Sync).

⚫ ExtMod:If modulation mode is enabled for CH1, and external modulation

source is used, this connector accepts an external modulation signal.

⚫ Trig:If CH1 is in sweep or burst mode and external trigger source is used, this

connector accepts an external trigger signal (the polarity of the signal can be set).

2. 10 MHz Reference In/Out (10MHz In/Out)

BNC connector with 50Ω nominal output impedance and 5KΩ nominal input

impedance. The function of this connector is determined by the type of clock used by the generator. HDG3000B can use internal or external clock (refer to the introduction in "Clock Source"). ⚫ When internal clock source is used, the connector (used as 10MHz Out) can

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

⚫ When external clock source is used, the connector (used as 10MHz In)

accepts a 10MHz external clock signal.

⚫ This connector is usually used to synchronize multiple instruments (refer to

the introduction in "Clock Source").

3. Counter (0~3.3V, external signal input)

BNC connector with 500Ω nominal input impedance. It is used to accept an

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external signal to be measured by the counter.

4. USB DEVICE Interface

5. Safety Lock Hole

6. AC Power Socket

4.4.3 Main interface

The user interface is shown in the following figure.

Figure 4.5 User Interface

1. Displays the selected channel.

CH1、CH2

2. Channel Parameters

Display the waveform parameters of the current channel. Press the parameter softkey and use the numeric keypad or direction keys and knob to modify the value. The parameters that can be modified will be highlighted, and the red background of the number indicates the current cursor position.

3. Waveform

Display the selected waveform type of the current channel.

4. Channel Configuration

Displays the output configuration of the current channel, including waveform type, output impedance, operating mode and output state. Output Impedance: HighZ (High Impedance) or 50Ω. Mode: Modulation, Sweep, Burst or Continuous output.

5. Menu

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Displays the operation menu corresponding to the currently selected function. For example, the function menu of the [Wave] button is displayed in the figure.

4.5 Parameter Setting Method

Users can use the numeric keypad or knob and direction keys to set parameters.

4.5.1 Numeric Keypad

The numeric keypad consists of the following parts:

1. Number keys

The 0 to 9 number keys are used to directly input the desired parameter value.

2. Decimal point

Press this key to insert a decimal point "." at the current position of the cursor.

3. Operator Key

The operator key "+/-" is used to modify the operator of the parameter. Press this key to set the parameter operator to "-"

4.5.2 Direction Keys and Knob

Arrow key functions include:

During parameter input, the direction keys are used to move the cursor to select the currently edited bit.

When editing the file name, the arrow keys are used to move the cursor position.

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Knob functions include:

⚫ In the parameter editable state, rotating the knob will increase (clockwise) or

decrease (counterclockwise) the parameter in specified steps.

⚫ When editing the file name, the knob is used to select different characters in the

soft keyboard.

⚫ In [Wave] > Arb > Type > Custom, the knob is used to select different arbitrary

waveform files.

⚫ In the store and recall function, the knob is used to select the location where the file

is saved or the file to be read.

4.6 Using the built-in help system

To get help on any front-panel key or menu softkey, first press the front-panel [?] key, then the key for which you want help. If there are indexes for other topics in the content view, the user can rotate the knob to select a different index, press the button to enter the corresponding topic content. Press the [?] key again to exit.

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5 Basic Waveform Output

HDG3000B can output basic waveforms (including Sine, Square, Ramp, Pulse and Noise) from one of the channels separately or from the two channels at the same time. At start-up, the channel is configured as a sine waveform with 1KHz frequency and 200mVpp amplitude by default. This chapter introduces how to configure the instrument to output various basic waveforms.

5.1 Select the Channel

Users can configure HDG3000B to output basic waveform from a single channel or from dual channels at the same time. Please select the desired channel before configuring waveform parameters. At start-up, CH1 is selected by default.

Press [CH1/2] button on the front panel and the corresponding area in the user interface is illuminated. At this point, users can configure the waveform and parameters of the channel selected.

Note: CH1 and CH2 cannot be selected at the same time. Users can first select CH1 and then select CH2 after configuring the waveform and parameters of CH1.

5.2 Set the Parameter

5.2.1 Select the Basic Waveform

HDG3000B can output 5 kinds of basic waveforms, including Sine, Square, Ramp, Pulse and Noise. At start-up, Sine is selected by default.

Press [Wave] button on the front panel, and then press the corresponding softkey in the menu to select the waveform and enter the parameter setting menu. Now the user interface displays the selected waveform shape. Press [Wave] > CH1=CH2 softkey to change the settings of another channel to be the same as the settings of the current channel.

5.2.2 Set the Frequency

Frequency is one of the most important parameters of the basic waveforms. For different models and different waveforms, the setting ranges of the frequency are different. For detailed information, please refer to "Frequency Characteristics" in "Specifications". The default frequency is 1 KHz. The frequency displayed on the screen is the default value or the frequency previously set. When the instrument function is changed, if this frequency is valid under the new function, the instrument will still use this frequency; otherwise, the instrument would

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display prompt message and set the frequency to the frequency upper limit of the new function automatically.

Press [Setting] > Frequency softkey. At this point, use the numeric keypad to input the value of the frequency and select the desired unit from the pop-up unit menu, or use the direction keys and knob to modify the current value.

1. For the input method of frequency value, please refer to the introduction of

"Parameter Setting Method".

2. The frequency units available are MHz, KHz, Hz and mHz.

3. Press [Utility] > Units softkey and press Frequency/Period softkey to switch Frequency in the parameter to Period. Press [Setting] > Period softkey to modify the period parameter.

4. The period units available are sec, msec, μsec and nsec.

5.2.3 Set the Amplitude

The amplitude range is limited by Frequency or Period and Impedance settings. Please refer to "Output Characteristics" in Specifications. The default value is 200mVpp.

The amplitude displayed on the screen is the default value or the amplitude previously set. When the instrument configuration (e.g. frequency) is changed, if this amplitude is valid, the instrument will still use this amplitude; otherwise, the instrument would display a prompt message and set the amplitude to the amplitude upper limit of the new configuration automatically. Press [Setting] > Amplitude softkey. At this point, use the numeric keypad to input the value of the amplitude and select the desired unit from the pop-up unit menu, or use the direction keys and knob to modify the current value.

1. For the input method of amplitude value, refer to the introduction in "Parameter

Setting Method".

2. The amplitude units available are Vpp, mVpp, and Vrms, dBm (50Ω impedance).

3. Press [Utility] > Units softkey and press Amplitude/High Level softkey to switch the Amplitude and Offset in the parameter to High Level and Low level. Press [Setting] > High Level or Low Level softkey to modify high level or low level parameters.

4. The high level units available are V and mV.

Tips:

Switch between Vpp and Vrms

Vpp is the unit for the signal peak-peak value and Vrms is the unit for the signal effective value. The default unit of the instrument is Vpp. Users can quickly switch the current amplitude unit from the front panel. For different waveforms, the relations between Vpp and Vrms are different. Take sine waveform as an example; the relation of the two units is as shown in the figure below.

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According to the figure above, the conversion relation between Vpp and Vrms fulfills the following equation.

For example, convert 2Vpp to the corresponding value in Vrms. For sine waveform, press in the numeric keypad to enter 0.707 and select the Vrms menu.

5.2.4 Set the DC Offset Voltage

The settable range of the DC offset voltage is limited by the Amplitude and Impedance settings. Please refer to the "Output Characteristics" in Specifications. The default value is 0VDC.

Press [Setting] > Offset softkey. At this point, use the numeric keypad to enter the offset value and select the desired unit from the pop-up unit menu, or use the direction keys and knob to modify the current value.

1. For the input method of offset value, refer to the introduction in "Parameter

Setting Method".

2. The DC offset voltage units available are V and mV.

3. Press [Utility] > Units softkey and press Offset/Low Level softkey to switch

Amplitude and Offset in the parameter to High and Low level. Press [Setting] > High level or Low level softkey to modify high-level or low-level parameters.

4. The low level units available are V and mV.

5.2.5 Set the Start Phase

Press [Setting] > Phase softkey to enter the phase submenu. At this point, use the numeric keypad to input the value of the phase and select the unit " Degree" from the unit menu that pops up, or use the direction keys and the knob to modify the current value.

1. For the input method of phase value, refer to the introduction in "Parameter Setting

Method".

2. The starting phase can be set from 0° to 360°. The default value is 0°.

3. Press 0 Phase softkey to quickly set the phase to 0°.

4. Press Sync softkey to synchronize the phase of the two channels (CH1 and CH2) with each other.

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For two signals whose frequencies are the same or in multiple, this operation will align their phases. For example, assume a sine waveform (1KHz, 8Vpp, 0 °) is output from CH1, while another (1KHz, 8Vpp, 180°) from CH2. Use an oscilloscope to sample and display the waveforms of the two channels. You will see that the phase deviation of the two waveforms displayed on the oscilloscope is not 180°. At this point, press Sync softkey on the generator and the waveforms shown on the oscilloscope will have a phase deviation of 180° without any adjustment of the start phase of the generator.

Before synchronizing phase:

Figure 5.1 Before

After synchronizing phase:

Figure 5.2 After

5.2.6 Set the Duty Cycle

Duty cycle is defined as the percentage that the high level takes up in the whole period as shown in the figure below.

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The duty cycle range is limited by the "Frequency/Period" setting. Please refer to "Signal Characteristics" in Specifications. The default value is 50%.

Press [Wave] > Square softkey to select the square waveform function and press Duty softkey to highlight it. At this point, use the numeric keypad to input the value and select the unit "%" from the unit menu that pops up, or use the direction keys and the knob to modify the current value. For the input method of duty cycle value, refer to the introduction in "Parameter Setting Method".

5.2.7 Set the Symmetry

Symmetry is defined as the percentage that the rising period takes up in the whole period as shown in the figure below. This parameter is only available when ramp is selected.

Symmetry can be set in the range of 0% to 100%. The default value is 50%. Press [Wave] > Ramp softkey to select the ramp wave function and press Symmetry

softkey to highlight it. At this point, use the numeric keypad to input the value and select the unit "%" from the unit menu that pops up, or use the direction keys and the knob to modify the current value. For the input method of symmetry value, refer to the introduction in "Parameter Setting Method".

5.2.8 Set the Pulse Parameters

To output a pulse, users need to set the "Width/Duty", "Leading" and "Trailing", in addition to the basic parameters (such as the frequency, amplitude, DC offset voltage, high level, low level and align phase) introduced above.

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Pulse width/duty cycle

Pulse width is defined as the time from the 50% threshold of a rising edge amplitude to the 50% threshold of the next falling edge amplitude as shown in the figure above.

The settable range of the pulse width is limited by the "Minimum Pulse Width" and the "Pulse Period" (for the ranges of the "Minimum Pulse Width" and "Pulse Period", please refer to "Signal Characteristics" in Specifications). The default value is 100μs.

1. Pulse Width ≥ Minimum Pulse Width

2. Pulse Width ≤ Pulse Period - Minimum Pulse Width

Pulse duty cycle is defined as the percentage that the pulse width takes up in the whole pulse period. The pulse width and pulse duty cycle are correlative. Once a parameter is changed, the other will be automatically changed. The pulse duty cycle is limited by the "Minimum Pulse Width" and "Pulse Period".

1. Pulse Duty Cycle ≥ Minimum Pulse Width ÷ Pulse Period × 100%

2. Pulse Duty Cycle ≤ (1 - Minimum Pulse Width ÷ Pulse Period) × 100%

Press [Wave] > Pulse softkey to select the pulse wave function and press Width softkey to highlight it. At this point, use the numeric keypad to input the value and select the desired unit from the unit menu that pops up, or use the direction keys and knob to modify the current value.

1. For the input method of the value, refer to the introduction in "Parameter Setting

Method".

2. The width units available are sec, msec, μsec and nsec.

3. Press [Utility] > Units softkey and press Width/Duty softkey to change Width in the parameter to Duty. Press [Setting] > Duty softkey to modify the duty cycle parameters.

Leading/Trailing Edge Time

The leading (rising) edge time is defined as the time required for the pulse amplitude to

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rise from 10% threshold to 90% threshold; while the trailing (falling) edge time is defined as the time required for the pulse amplitude to fall from 90% threshold to 10% threshold as shown in the figure above.

The range of the leading/trailing edge time is limited by the pulse width currently specified as shown in the formula below. The edge time will be automatically adjusted to match the specified pulse width if the value currently set exceeds the limit value.

Press [Wave] > Pulse softkey to select pulse wave function and press Edge Time softkey to enter the Edge Time sub-menu. Press Leading or Trailing softkey to highlight it. At this point, use the numeric keypad to input the value and select the desired unit from the unit menu that pops up, or use the direction keys and knob to modify the current value.

1. For the input method of the value, refer to the introduction in "Parameter Setting

Method".

2. The edge time units available are sec, msec, μsec and nsec.

3. The leading time and trailing time are independent from each other and users can set them separately.

5.2.9 Enable the Channel Output

After configuring the parameters of the waveform selected, waveform output could be enabled. Press [Output1] or/and [Output2] button on the front panel and the backlight of the button turns on. The instrument outputs the configured waveform from the [Output1] or [Output2] connector on the front panel.

5.3 Basic Waveform Output Example

Configure the generator to output a pulse waveform with 1.5MHz frequency, 500mVpp amplitude, 5mV DC offset, 200ns pulse width, 75ns leading edge time and 100ns trailing edge time.

1. Press [CH1/2] button on the front panel and select CH1. The corresponding area of CH1 in the user interface is illuminated.

2. Press [Wave] > Pulse softkey to select the pulse wave function.

3. Press Frequency softkey to highlight it. Use the numeric keypad to input the frequency value "1.5", and then select the desired unit "MHz" from the pop-up menu.

4. Press Amplitude softkey to highlight it. Use the numeric keypad to input the amplitude value "500", and then select the desired unit "mVpp" in the pop-up menu.

5. Press Offset softkey to highlight it. Use the numeric keypad to input the offset value "5", and then select the desired unit "mV" in the pop-up menu.

6. Press Width softkey to highlight it. Use the numeric keypad to input the width value "200", then select the unit "nsec" from the menu that pops up.

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7. Press Edge Time softkey to enter the edge time submenu. Press Leading softkey to highlight it. Use the numeric keypad to enter the value "75", then select the unit "nsec" from the menu that pops up.

8. Press Edge Time softkey to enter the edge time submenu. Press Trailing softkey to highlight it. Use the numeric keypad to enter the value "100", then select the unit "nsec" from the menu that pops up.

9. Press [Output1] button on the front panel to turn CH1 Output on.

Figure 5.3 Setting Interface

At this point, the specified waveform is output from CH1 based on the current configuration. Connect the CH1 output terminal to the oscilloscope and the waveform is as shown in the figure below.

Figure 5.4 Output Waveform

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6 Arbitrary Waveform Output

HDG3000B can output the built-in waveforms and user-defined arbitrary waveforms from a single channel or from two channels at the same time. The 160 kinds of built-in waveforms are stored in the internal non-volatile memory. The user-defined arbitrary waveforms can contain 64 to 2M data points. Users can edit the arbitrary waveforms via the PC software and then download them to the instrument. This chapter introduces how to configure the generator to output arbitrary waveforms.

6.1 Enable Arbitrary Waveform

Press [Wave] > Arb softkey to enable the arbitrary waveform function and open the operation menu of the arbitrary waveform.

Figure 6.1 Arbitrary Interface

To set the basic parameters of arbitrary waveforms, refer to “Set the Parameters”.

Type:

Select the built-in waveforms or user-defined arbitrary waveform stored in external storage.

6.2 Select Arbitrary Waveform

The HDG3000B allows the user to select arbitrary waveform in the internal or external memory of the instrument for output. Press [Wave] > Arb > Type softkey to select the built-in waveform. Select more than 160 kinds of arbitrary waveform built in HDG3000B, as shown in the following table. Press the softkey and select a type ("Math", "Project", "Distribution function" and "Trigonometric function", "Window function" and "biology"), and press the corresponding softkey type to select the desired waveform.

Build-In Waveform

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Name

Description

Common

DC

DC signal

AbsSine

Absolute value of a Sine

AbsSineHalf

Absolute value of half a Sine

AmpALT

Gain oscillation curve

AttALT

Attenuation oscillation curve

GaussPulse

Gauss pulse

NegRamp

Negative ramp

NPulse

Negative pulse

PPulse

Positive pulse

SineTra

Sine-Tra waveform

SineVer

Sine-Ver waveform

StairDn

Stair-down waveform

StairUD

Stair-up and stair-down waveform

StairUp

Stair-up waveform

Trapezia

Trapezoid waveform

Project

BandLimited

Bandwidth-limited signal

BlaseiWave

Time-velocity curve of explosive vibration

Butterworth

Butterworth filter

Chebyshev1

Chebyshev1 filter

Chebyshev2

Chebyshev2 filter

Combin

Combination function

CPulse

C pulse

CWPulse

CW pulse

DampedOsc

Time-displacement curve of damped oscillation

DualTone

Dual-tone signal

Gamma

Gamma signal

GateVibar

Gate self-oscillation signal

LFMPulse

Linear FM pulse

MCNoise

Mechanical construction noise

Discharge

Discharge curve of Ni-MH battery

Pahcur

Current waveform of DC brushless motor

Quake

Analog quake waveform

Radar

Analog radar waveform

Ripple

Ripple wave of battery

RoundHalf

RoundHalf wave

RoundsPM

RoundsPM waveform

StepResp

Step-response signal

SwingOsc

Kinetic energy- time curve of swing oscillation

TV

TV signal

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Name

Description

Voice

Voice signal

Sec-Mod

AM

Sectioned sine AM signal

FM

Sectioned sine FM signal

PFM

Sectioned pulse FM signal

PM

Sectioned sine PM signal

PWM

Sectioned PWM signal

Bioelect

Cardiac

Cardiac signal

EOG

Electro-Oculogram

EEG

Electroencephalogram

EMG

Electromyogram

Pulseilogram

Pulsilogram

ResSpeed

Speed curve of the respiration

Medical

LFPulse

Waveform of the low frequency pulse electrotherapy

Tens1

Waveform 1 of the nerve stimulation electrotherapy

Tens2

Waveform 2 of the nerve stimulation electrotherapy

Tens3

Waveform 3 of the nerve stimulation electrotherapy

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

ISO7637-2 TP1

Automotive transients due to disconnects

ISO7637-2 TP2A

Automotive transients due to inductance in wiring

ISO7637-2 TP2B

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

Automotive transients due to battery disconnect

ISO7637-2 TP5B

Automotive transients due to battery disconnect

SCR

SCR firing profile

Surge

Surge signal

Math

Airy

Airy function

Besselj

BesselI function

Bessely

BesselII function

Cauchy

Cauchy distribution function

Cubic

Cubic function

Dirichlet

Dirichlet function

Erf

Error function

Erfc

Complementary error function

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Name

Description

ErfcInv

Inverted complementary error function

ErfInv

Inverted error function

ExpFall

Exponential fall function

ExpRise

Exponential rise function

Gauss

Gauss distribution

HaverSine

HaverSine function

Laguerre

4-times Laguerre polynomial

Laplace

Laplace distribution

Legend

5-times Legend polynomial

Log

Logarithm function with the base 10

LogNormal

Logarithmic Gaussian distribution

Lorentz

Lorentz function

Maxwell

Maxwell distribution

Rayleigh

Rayleigh distribution

Versiera

Weibull

Weibull distribution

ARB_X2

Square function

Trigonome

CosH

Hyperbolic cosine

CosInt

Integral cosine

Cot

Cotangent

CotHCon

Concave hyperbolic cotangent

CotHPro

Protuberant hyperbolic cotangent

CscCon

Concave cosecant

CscPro

Protuberant cosecant

CscHCon

Concave hyperbolic cosecant

CscHPro

Protuberant hyperbolic cosecant

RecipCon

Concave reciprocal

RecipPro

Protuberant reciprocal

SecCon

Concave secant

SecPro

Protuberant secant

SecH

Hyperbolic secant

Sinc

Sinc function

SinH

Hyperbolic sine

SinInt

Integral sine

Sqrt

Square root

Tan

Tangent

TanH

Hyperbolic tangent

Anti Trigonome

ACos

Arc cosine

ACosH

Arc hyperbolic cosine

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Name

Description

ACotCon

Concave arc cotangent

ACotPro

Protuberant arc cotangen

ACotHCon

Concave arc hyperbolic cotangent

ACotHPro

Protuberant arc hyperbolic cotangent

ACscCon

Concave arc cosecant

ACscPro

Protuberant arc cosecant

ACscHCon

Concave arc hyperbolic cosecant

ACscHPro

Protuberant arc hyperbolic cosecant

ASecCon

Concave arc secant

ASecPro

Protuberant arc secant

ASecH

Arc hyperbolic secant

ASin

Arc Sinc

ASinH

Arc hyperbolic sine

ATan

Arc tangent

ATanH

Arc hyperbolic tangent

Window

Bartlett

Bartlett window

BarthannWin

Modified Bartlett-Hann window

Blackman

Blackman window

BlackmanH

BlackmanH window

BohmanWin

Bohman window

Boxcar

Rectangle window

ChebWin

Chebyshev window

FlattopWin

Flat Top weighted 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 (Fejer window)

TukeyWin

Tukey (tapered cosine) window

Table 6.1 Build-In waveform

User-defined Waveforms

Select the user-defined arbitrary waveform stored in external storage (USB drive).

Loading arbitrary waveform

Edit the ARB waveform by PC software and export the waveform data to the external storage device as .hwf file.

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Press [Wave] > Arb softkey to enter the arbitrary menu, and press Type > User softkey to select the arbitrary waveform file to load.

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7 Harmonic Output

The HDG3000B can be used as a harmonic generator to output harmonic with specified order, amplitude and phase. It is usually used in the test of harmonic detector device or harmonic filter device. This chapter introduces how to configure the generator to output harmonics. Subjects in this chapter:

7.1 Overview

According to Fourier transform, time domain waveform is the superposition of a series of sine waveforms as shown in the equation below:

Generally, component with f1 frequency is called basic waveform, f1 is basic waveform frequency, A

1

is basic waveform amplitude and φ1 is basic waveform phase. The frequencies of other components (called harmonics) are all integral multiples of the basic waveform frequency. Components whose frequencies are odd multiples of the basic waveform frequency are odd harmonics and components whose frequencies are even multiples of the basic waveform frequency are even harmonics.

HDG3000B can output up to 16th order of harmonic. After selecting CH1 or CH2, press [Wave] > Harmonic softkey on the front panel to enter the harmonic setting menu. Users can set the parameters of basic waveform, set the type of harmonic, specify the highest order of harmonic and set the amplitude and phase of each order of harmonic.

After finishing harmonic parameter setting, press [Output1] button or (and) [Output2] button on the front panel and the backlight of the button turns on, the instrument outputs the specified harmonic from the corresponding output terminal.

7.2 Set the Basic Waveform Parameters

Users can set various basic waveform parameters such as frequency, period, amplitude, DC offset voltage, high level, low level and start phase. It also supports synchronizing phase operation. Please refer to introductions in "Basic Waveform Output" to set basic waveform parameters.

7.3 Set the Harmonic Order

The highest order of harmonic output cannot be greater than this setting value. Press [Wave] > Harmonic softkey on the front panel to enter the harmonic setting menu, and press Order softkey, at this time, the "Order” on the screen is highlighted, use the numeric keypad or the direction keys and the knob to input the corresponding

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value. The range is limited by the maximum output frequency of the instrument as well as the basic waveform frequency. ⚫ Range: integers within 2 to maximum output frequency of the instrument ÷ basic

waveform frequency.

⚫ The maximum value is 16.

7.4 Set the Harmonic Type

HDG3000B can output even harmonics, odd harmonics or all orders of harmonics. Press [Wave] > Harmonic softkey on the front panel to enter the harmonic setting menu, and press Type softkey to select the desired harmonic type.

1. Even

Select this type and the instrument would output basic waveform and even harmonics.

2. Odd

Select this type and the instrument would output basic waveform and odd harmonics.

3. All

Select this type and the instrument would output basic waveform and all the harmonics in order.

Note: The harmonics actually output is determined by the "Order" currently

specified.

7.5 Set the Harmonic Amplitude

Press [Wave] > Harmonic softkey to enter the harmonic setting menu and press

Amplitude softkey to set the amplitude of each harmonic.

1. Index:

Press this softkey to select the index number of the harmonic to be selected.

2. Amplitude:

Press this softkey to set the amplitude of the selected subharmonic. Use the numeric keypad to input the amplitude value and then select the desired unit from the pop-up menu, or use the direction keys and knob to modify the current value.

⚫ For the input method of amplitude value, please refer to the introduction in

"Parameter Setting Method".

⚫ The amplitude units available are Vpp and mVpp.

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7.6 Set the Harmonic Phase

Press [Wave] > Harmonic softkey to enter the harmonic setting menu and press Phase softkey to set the phase of each harmonic.

1. Index:

Press this softkey to select the index number of the harmonic to be selected.

2. Phase:

Press this softkey to set the phase of the selected subharmonic. Use the numeric keypad to input the phase value and then select the unit "°" from the pop-up menu, or use the direction keys and knob to modify the current value. For the input method of phase value, refer to the introduction in "Parameter Setting Method".

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8 Modulation

HDG3000B supports AM, DSB-AM, FM, PM, 2ASK, 2FSK, 2PSK, BPSK, QPSK, 3FSK, 4FSK, OSK and PWM modulations. It can output modulated waveform from a single channel or from two channels at the same time. The modulated waveform consists of carrier waveform and modulating waveform. The carrier waveform can be Sine, Square, Ramp, Pulse, Arbitrary waveform (except DC) or Harmonic. The modulating waveform can be from internal (default), other channel, or external modulation source.

8.1 AM Modulation

A modulated waveform consists of a carrier waveform and a modulating waveform. In AM, the carrier amplitude is varied by the voltage level of the modulating waveform.

8.1.1 Select AM Modulation

Press [Mod] > Type > AM softkey to enable AM function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After AM is enabled, the instrument will generate AM waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes, enable modulation after configuring the other modulation parameters.

8.1.2 Carrier Waveform Shape

AM carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform. ⚫ Press [Wave] button on the front panel to select the desired carrier waveform

shape.

⚫ Noise and DC could not be used as carrier waveform.

8.1.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. Please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.1.4 Modulation Source

Press [Mod] > SignalSrc softkey to select internal, external or another ch as the

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modulation source.

Internal Source

When internal modulation source is selected, press Shape softkey to select Sine, Square, Ramp, Noise or Arb as the modulation source. The default is Sine.

⚫ Sine ⚫ Square: 50% duty cycle ⚫ Ramp: 50% symmetry. ⚫ Noise ⚫ Arb: Sinc, Exp Fall, Haver Sine, Lorentz, Gause, Dual Tone, ECG.

Note: Noise can be used as modulating waveform but cannot be used as carrier

waveform.

External Source

When external modulation source is selected, the Frequency and Shape menu in the modulation menu is grayed out and disabled. The instrument receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. At this point, the AM modulation amplitude is controlled by the ±4V signal level on this connector. For example, when the modulation depth is 100%, the output amplitude is maximum when the external modulation signal is +4V, and the output amplitude is the minimum when the external modulation signal is -4V.

Other Channels

CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used as the modulated wave, CH2 can be used as the modulation source. And vice versa. When selecting another channel as the modulation source, please turn on the output of that channel.

8.1.5 Modulation Frequency

When internal modulation source is selected, press [Mod] > Frequency softkey to set the frequency of the modulating waveform. Use the numeric keypad or direction keys and knob to enter the desired frequency values. The modulating waveform frequency range is 2mHz to 1MHz, and the default value is 100Hz.

Note: This menu will be grayed out and disabled when other modulation sources

except the internal modulation source are selected.

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8.1.6 Modulation Depth

The modulation depth is a percentage that represents the amplitude variation. Press [Mod] > Depth softkey to set AM modulation depth. Modulation depth range: 0% to 120%. The default is 100%. At 0% depth, the amplitude is one-half of the carrier’s amplitude setting. At 100% depth, the output amplitude is equal to the specified value. In >100% modulation, the output amplitude of the instrument would not exceed 10Vpp (50Ω load). When external modulation source is select, the output amplitude of the instrument is also controlled by the ±4V signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel. For example, set the modulation depth to 100%, the output amplitude is the maximum when the modulating signal is +4V and the minimum when the modulating signal is -4V.

8.2 DSB-AM Modulation

In the Double-sideband AM signal, there are only two side frequencies, and there is no carrier component. Its frequency bandwidth is still twice the frequency of the modulated signal.

8.2.1 Select DSB-AM Modulation

Press [Mod] > Type > DSB-AM softkey to enable DSB-AM function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After DSB-AM is enabled, the instrument will generate DSB-AM waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform changes, enable modulation after configuring the other modulation parameters.

8.2.2 Carrier Waveform Shape

DSB-AM carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.2.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz.

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Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.2.4 Modulation Source

Press [Mod] > SignalSrc softkey to select Internal, External or Another Channel as the modulation source.

internal Source

When internal modulation source is selected, press Shape softkey to select Sine, Square, Ramp, Noise or Arb as the modulation source. The default is Sine.

⚫ Sine ⚫ Square: 50% duty cycle ⚫ Ramp: 50% symmetry. ⚫ Noise ⚫ Arb: Sinc, Exp Fall, Haver Sine, Lorentz, Gause, Dual Tone, ECG.

Note: Noise can be used as modulating waveform but cannot be used as carrier

waveform.

external Source

When external modulation source is selected, the Frequency and Shape menu in the modulation menu is grayed out and disabled. The instrument receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. At this point, the AM modulation amplitude is controlled by the ±4V signal level on this connector. For example, when the modulation depth is 100%, the output amplitude is maximum when the external modulation signal is +4V, and the output amplitude is the minimum when the external modulation signal is -4V.

another ch

CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used as the modulated wave, CH2 can be used as the modulation source. And vice versa. When selecting another channel as the modulation source, please turn on the output of that channel.

8.2.5 Modulation Frequency

When internal modulation source is selected, press [Mod] > Frequency softkey to set the frequency of the modulating waveform. ⚫ Use the numeric keypad or direction keys and knob to enter the desired frequency

values.

⚫ The modulating waveform frequency range is 2mHz to 1MHz, and the default value

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is 100Hz.

Note: This menu will be grayed out and disabled when other modulation sources

except the internal modulation source are selected.

8.2.6 Modulation Depth

The modulation depth represents the degree of amplitude variation, expressed as a percentage. The modulation depth of DSB-AM can be set from 0% to 120%.

⚫ Press [Mod] > Depth softkey to set DSB-AM modulation depth. ⚫ Modulation depth range: 0% to 120%. The default is 100%. ⚫ At 0% modulation, no signal is output. ⚫ At 50% depth, the DSB-AM amplitude is 1/4 of the carrier waveform amplitude. ⚫ At 100% depth, the DSB-AM amplitude is half of the carrier waveform amplitude.

⚫ In >100% modulation, the DSB-AM amplitude of the instrument would not

exceed 10Vpp (50Ω load).

When external modulation source is select, the output amplitude of the instrument is also controlled by the ±4V signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel. For example, set the modulation depth to 100%, the output amplitude is the maximum when the modulating signal is +4V or -4V, and the output amplitude is the minimum when the modulating signal is 0V.

8.3 FM Modulation

A modulated waveform consists of a carrier waveform and a modulating waveform. In FM, the carrier frequency is varied by the voltage level of the modulating waveform.

8.3.1 Select FM Modulation

Press [Mod] > Type > FM softkey to enable FM function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After FM is enabled, the instrument will generate FM waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes, enable modulation after configuring the other modulation parameters.

8.3.2 Carrier Waveform Shape

FM carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform.

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⚫ Noise and DC could not be used as carrier waveform.

8.3.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.3.4 Modulation Source

Press [Mod] > SignalSrc softkey to select Internal, External or Another Channel as the modulation source.

internal Source

When internal modulation source is selected, press Shape softkey to select Sine, Square, Ramp, Noise or Arb as the modulation source. The default is Sine.

⚫ Sine ⚫ Square: 50% duty cycle ⚫ Ramp: 50% symmetry. ⚫ Noise ⚫ Arb: Sinc, Exp Fall, Haver Sine, Lorentz, Gause, Dual Tone, ECG.

Note: Noise can be used as modulating waveform but cannot be used as carrier

waveform.

external source

When external modulation source is selected, the Frequency and Shape menu in the modulation menu is grayed out and disabled. The instrument receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. At this point, the FM modulation frequency deviation is controlled by the ±4V signal level on the connector.

another ch

CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used as the modulated wave, CH2 can be used as the modulation source. And vice versa. When selecting another channel as the modulation source, please turn on the output of that channel.

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8.3.5 Modulation Frequency

When internal modulation source is selected, press [Mod] > Frequency softkey to set the frequency of the modulating waveform. ⚫ Use the numeric keypad or direction keys and knob to enter the desired frequency

values.

⚫ The modulating waveform frequency range is 2mHz to 1MHz, and the default value

is 100Hz.

Note: This menu will be grayed out and disabled when other modulation sources

except the internal modulation source are selected.

8.3.6 Frequency Deviation

Frequency deviation is the deviation of the modulating waveform frequency relative to the carrier frequency. Press [Mod] > Deviation softkey to set the FM frequency deviation.

⚫ Frequency deviation must be lower than or equal to the carrier frequency. ⚫ Attempting to set a deviation greater than the carrier frequency will cause the

instrument to set the deviation equal to the carrier frequency.

⚫ The sum of frequency deviation and carrier frequency must be lower than or equal

to the sum of the current carrier frequency upper limit and 1kHz. When external modulation source is selected, the frequency deviation is controlled by the ±4V signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel. Positive signal level corresponds to frequency increase and negative signal level corresponds to frequency decrease. The lower the level, the less offset is generated. For example, if the frequency deviation is set to 1KHz, +4V signal level corresponds to a 1kHz increase of frequency and -4V signal level corresponds to a 1kHz decrease of frequency.

8.4 PM Modulation

A modulated waveform consists of a carrier waveform and a modulating waveform. In PM, the carrier phase is varied by the voltage level of the modulating waveform.

8.4.1 Select PM Modulation

Press [Mod] > Type > PM softkey to enable PM function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically.

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⚫ After PM is enabled, the instrument will generate PM waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes,

enable modulation after configuring the other modulation parameters.

8.4.2 Carrier Waveform Shape

PM carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.4.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.4.4 Modulation Source

Press [Mod] > SignalSrc softkey to select Internal, External or Another Channel as the modulation source.

internal Source

When internal modulation source is selected, press Shape softkey to select Sine, Square, Ramp, Noise or Arb as the modulation source. The default is Sine.

⚫ Sine ⚫ Square: 50% duty cycle ⚫ Ramp: 50% symmetry. ⚫ Noise ⚫ Arb: Sinc, Exp Fall, Haver Sine, Lorentz, Gause, Dual Tone, ECG.

Note: Noise can be used as modulating waveform but cannot be used as carrier

waveform.

external Source

When external modulation source is selected, the Frequency and Shape menu in the modulation menu is grayed out and disabled. The instrument receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. At this point, the PM modulation phase deviation is controlled by the ±4V signal level on the connector.

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another ch

CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used as the modulated wave, CH2 can be used as the modulation source. And vice versa. When selecting another channel as the modulation source, please turn on the output of that channel.

8.4.5 Modulation Frequency

When internal modulation source is selected, press [Mod] > Frequency softkey to set the frequency of the modulating waveform. ⚫ Use the numeric keypad or direction keys and knob to enter the desired frequency

values. ⚫ The modulating waveform frequency range is 2mHz to 1MHz, and the default value

is 100Hz.

Note: This menu will be grayed out and disabled when other modulation sources

except the internal modulation source are selected.

8.4.6 Phase Deviation

Phase deviation is the deviation of the modulating waveform phase relative to the carrier waveform phase. Press [Mod] > Deviation softkey to set the PM phase deviation. ⚫ Use the numeric keypad or direction keys and knob to input the desired phase

values. ⚫ The phase deviation is set to 0 ° to 360 °. When external modulation source is selected, the phase deviation is controlled by the ±4V signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel. For example, if the phase deviation is set to 180 °, +4V signal level corresponds to a 180º phase variation. The lower the external signal level, the less deviation would be generated.

8.5 ASK Modulation

Users can configure the instrument to "shift" its output amplitude between two preset values using ASK modulation. The rate at which the output shifts between the two amplitudes (called the "carrier amplitude" and the "modulation amplitude") is determined by the internal signal level of the instrument or the external signal level on the

[FSK/Trig/Sync/Extmod] connector on the rear panel.

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8.5.1 Select ASK modulation

Press [Mod] > Type > ASK softkey to enable this function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After ASK is enabled, the instrument will generate ASK waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes,

enable modulation after configuring the other modulation parameters.

8.5.2 Carrier Waveform Shape

ASK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.5.3 Carrier Waveform Amplitude

After selecting the carrier waveform, press [Setting] > Amplitude softkey on the front panel, use the numeric keypad or direction keys and knob to input the desired amplitude. The amplitude range is limited by frequency. Please refer to the "Output Characteristics" described in Specifications.

8.5.4 Modulation Source

Press [Mod] > SignalSrc to select Internal or External Modulation Source. internal Source

When internal modulation source is selected, the modulating waveform is set as a Square with 50% duty cycle, and the rate at which the output amplitude "shifts" between "carrier amplitude" and "modulating amplitude" is determined by "ASK Rate".

external Source

When external modulation source is selected, the generator receives the external modulating signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel.

Note: The [FSK/Trig/Sync/Extmod] connector is different when controlling ASK

and AM/FM/PM modulations externally.

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8.5.5 ASK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output amplitude shifts between "carrier amplitude" and "modulation amplitude".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

Note: This menu will be grayed out and disabled when the external modulation

source is selected.

8.5.6 Modulation Amplitude

After enabling ASK modulation function, press [Mod] > Amplitude softkey to set the modulation amplitude. ⚫ Use the numeric keypad or direction keys and knob to input the desired amplitude

value. ⚫ The range of amplitude (HighZ) is from 2mV to 20V and the default is 100mV.

8.6 FSK Modulation

Users can configure the instrument to "shift" its output frequency between two preset values using FSK modulation. The rate at which the output shifts between the two frequencies (called the "carrier frequency" and the "hop frequency") is determined by the internal signal level of the instrument or the signal level on the

[FSK/Trig/Sync/Extmod] connector on the rear panel.

8.6.1 Select FSK Modulation

Press [Mod] > Type > FSK softkey to enable FSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After FSK is enabled, the instrument will generate FSK waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes,

enable modulation after configuring the other modulation parameters.

8.6.2 Carrier Waveform Shape

FSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

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⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.6.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.6.4 Modulation Source

Press [Mod] > SignalSrc softkey to select Internal (default) or External as the modulation source.

internal Source

When internal modulation source is selected, the modulating waveform is set as a Square with 50% duty cycle, and the rate at which the output frequency "shifts" between "carrier frequency" and "modulating frequency" is determined by "FSK Rate".

external Source

When external modulation source is selected, the generator receives the external modulating signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel.

Note: The [FSK/Trig/Sync/Extmod] connector is different when controlling FSK and

AM/FM/PM modulations externally.

8.6.5 FSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output frequency shifts between "carrier frequency" and "hopping frequency".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

Note: This menu will be grayed out and disabled when the external modulation

source is selected.

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8.6.6 Hopping Frequency

The range of hopping frequency depends on the carrier waveform currently selected. Refer to "Frequency Characteristics" in Specifications. Press [Mod] > HopFreq softkey. Use the numeric keypad or direction keys and knob to input the desired frequency value.

8.7 PSK Modulation

Users can configure the instrument to "shift" its output phase between two preset values using PSK modulation. The rate at which the output shifts between the two phases (called the "carrier phase" and the "modulation phase") is determined by the internal signal level of the instrument or the signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel.

8.7.1 Select PSK Modulation

Press [Mod] > Type > PSK softkey to enable PSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After PSK is enabled, the instrument will generate PSK waveform with the currently

specified carrier and modulating waveforms. To avoid multiple waveform changes,

enable modulation after configuring the other modulation parameters.

8.7.2 Carrier Waveform Shape

PSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.7.3 Carrier Waveform Phase

Press [Setting] > Phase softkey on the front panel and use the numeric keypad or direction keys and knob to input the desired phase.

The available phase ranges from 0º to 360º and the default value is 0º.

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8.7.4 Modulation Source

Press [Mod] > SignalSrc to select Internal or External modulation source. internal Source

When internal modulation source is selected, the modulating waveform is set as a Square with 50% duty cycle, and the rate at which the output phase "shifts" between "carrier phase" and "modulation phase" is determined by "PSK Rate".

external source

When external modulation source is selected, the generator receives the external modulating signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel.

Note: The [FSK/Trig/Sync/Extmod] connector is different when controlling PSK and

AM/FM/PM modulations externally.

8.7.5 PSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output phase shifts between "carrier phase" and "modulation phase".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

Note: This menu will be grayed out and disabled when the external modulation

source is selected.

8.7.6 Modulation Phase

Press [Mod] > Phase softkey to set the modulation phase.

⚫ Use the numeric keypad or direction keys and knob to input the desired phase

value. ⚫ The phase range is from 0º to 360º and the default is 180º.

8.8 BPSK Modulation

Users can configure the instrument to "shift" its output phase between two preset values using BPSK modulation. The rate at which the output shifts between the two phases (called the "carrier phase" and the "modulation phase") is determined by the internal signal level of the instrument.

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8.8.1 Select BPSK Modulation

Press [Mod] > Type > BPSK softkey to enable the BPSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After BPSK is enabled, the instrument will generate BPSK waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform

changes, enable modulation after configuring the other modulation parameters.

8.8.2 Carrier Waveform Shape

BPSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.8.3 Carrier Waveform Phase

Press [Setting] > Phase softkey on the front panel and use the numeric keypad or direction keys and knob to input the desired phase. The available phase ranges from 0º to 360º and the default value is 0º.

8.8.4 Modulation Source

BPSK uses internal modulation source. After enabling BPSK modulation function, press [Mod] > Data Source softkey, and select 01 code, 10 code, PN15 code or PN21 code as the modulation source. The default data source is 01 code.

8.8.5 BPSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output phase shifts between "carrier phase" and "modulation phase".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

8.8.6 Modulation Phase

Pressing [Mod] > Phase softkey to set the modulation phase.

⚫ Use the numeric keypad or direction keys and knob to input the desired phase

values.

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⚫ The phase range is from 0º to 360º and the default is 180º.

8.9 QPSK Modulation

Users can configure the instrument to "shift" its output phase between four preset values using QPSK modulation. The rate at which the output shifts between the four phases (called the "carrier phase" and three "modulation phases") is determined by the internal signal level of the instrument.

8.9.1 Select QPSK Modulation

Press [Mod] > Type > QPSK softkey to enable QPSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After QPSK is enabled, the instrument will generate QPSK waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform

changes, enable modulation after configuring the other modulation parameters.

8.9.2 Carrier Waveform Shape

QPSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.9.3 Carrier Waveform Phase

Press [Setting] > Phase softkey on the front panel and use the numeric keypad or direction keys and knob to input the desired phase. The available phase ranges from 0º to 360º and the default value is 0º.

8.9.4 Modulation Source

QPSK uses the internal modulation source. After enabling QPSK modulation function, press [Mod] > Data Source softkey, and select PN15 and PN21 codes as the modulation source. The default is PN15 code.

8.9.5 QPSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output phase shifts between "carrier phase" and three "modulation

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phases".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

8.9.6 Modulation Phase

Press [Mod] > Phase1 or Phase2/Phase3 softkeys to set the parameter.

⚫ Use the numeric keypad or direction keys and knob to input the desired amplitude

value. ⚫ The phase range is from 0º to 360º. The default is 180°. The default values for

phases 1, 2, and 3 are 45°, 135°, and 225°, respectively.

8.10 3FSK Modulation

Users can configure the instrument to "shift" its output frequency between three preset values using 3FSK modulation. The rate at which the output shifts between the three frequencies (called the "carrier frequency" and two "hop frequencies") is determined by the internal signal level of the instrument.

8.10.1 Select 3FSK Modulation

Press [Mod] > Type > 3FSK softkey to enable 3FSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After 3FSK is enabled, the instrument will generate 3FSK waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform

changes, enable modulation after configuring the other modulation parameters.

8.10.2 Carrier Waveform Shape

3FSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

8.10.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

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8.10.4 Modulation Source

3FSK uses internal modulation source. The modulating waveform is square.

8.10.5 3FSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output frequency shifts between "carrier frequency" and two "hopping frequencies".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

8.10.6 Hopping Frequency

The range of hopping frequency depends on the carrier waveform currently selected. Refer to "Frequency Characteristics" in Specifications. Press [Mod] > HopFreq softkey. Use the numeric keypad or direction keys and knob to input the desired frequency value.

8.11 4FSK Modulation

Users can configure the instrument to "shift" its output frequency between four preset values using 4FSK modulation. The rate at which the output shifts between the four frequencies (called the "carrier frequency" and three "hop frequencies") is determined by the internal signal level of the instrument.

8.11.1 Select 4FSK Modulation

Press [Mod] > Type > 4FSK softkey to enable 4FSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After 4FSK is enabled, the instrument will generate 4FSK waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform

changes, enable modulation after configuring the other modulation parameters.

8.11.2 Carrier Waveform Shape

4FSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic waveform.

⚫ Press [Wave] button on the front panel to select the desired carrier waveform. ⚫ Noise and DC could not be used as carrier waveform.

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8.11.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.11.4 Modulation Source

4FSK uses internal modulation source. The modulating waveform is square.

8.11.5 4FSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set the rate at which the output frequency shifts between "carrier frequency" and three "hopping frequencies".

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

8.11.6 Hopping Frequency

The range of hopping frequency depends on the carrier waveform currently selected. Refer to "Frequency Characteristics" in Specifications. Press [Mod] > HopFreq softkey. Use the numeric keypad or direction keys and knob to input the desired frequency value.

8.12 OSK Modulation

When OSK (Oscillation Shift Keying) modulation is selected, users can configure the generator to output a sine signal with intermittent oscillation as shown in the figure below (the carrier waveform is 100Hz and the OSK rate is 1kHz). The start-oscillation and stop-oscillation of the internal crystal oscillator are controlled by the internal signal level or signal level from the [FSK/Trig/Sync/Extmod] connector on the rear panel. When the internal crystal oscillator starts to oscillate, the instrument starts to output the carrier waveform and when the internal crystal stops oscillating, the output stops.

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Figure 8.1 OSK Modulation

8.12.1 Select OSK Modulation

Press [Mod] > Type > OSK softkey to enable OSK function.

⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After OSK is enabled, the instrument will generate OSK waveform with the

currently specified carrier and modulating waveforms. To avoid multiple waveform

changes, enable modulation after configuring the other modulation parameters.

8.12.2 Carrier Waveform Shape

OSK carrier waveform can only be sine waveform. Press [Wave] > Sine softkey on the front panel to select.

8.12.3 Carrier Waveform Frequency

For different carrier waveforms, the settable range of carrier frequency is different. Please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value.

8.12.4 Modulation Source

Press [Mod] > Source softkey to select Internal (default) or External as the modulation source.

internal Source

When internal modulation source is selected, the modulating waveform is set as a Square with 50% duty cycle, and the intermittence time and oscillate time of the output

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signal is determined by the OSK "Rate".

external Source

When external modulation source is selected, the signal generator receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel.

8.12.5 OSK Rate

When internal modulation source is selected, press [Mod] > Rate softkey to set.

⚫ Use the numeric keypad or direction keys and knob to input the desired rate value. ⚫ The rate range is from 2mHz to 1MHz and the default is 100Hz.

Note: This menu will be grayed out and disabled when the external modulation

source is selected.

8.12.6 Oscillate Time

Oscillate time is the oscillation period of internal crystal oscillator. The settable range of the oscillate time is related to the OSK rate currently selected. Press [Mod] > OscTime softkey and use the numeric keypad or direction keys and knob to input the desired time. The default range is from 8ns to 4.99975ms.

8.13 PWM Modulation

A modulated waveform consists of a carrier waveform and a modulating waveform. In PWM, the pulse width of the carrier waveform varies with the voltage level of the modulating waveform.

8.13.1 Select PWM Modulation

PWM is only available for the Square waveform. Press [Wave] > Square softkey, and then press [Mod] > Type >PWM softkey to enable the PWM function. ⚫ If the Square function has not been selected as carrier waveform, PWM in

[Mod] >Type menu is unavailable. ⚫ When Mod is enabled, Sweep or Burst will be automatically disabled (if enabled

currently). ⚫ After PWM is enabled, the instrument will generate PWM waveform with the

currently specified carrier and modulating waveforms.

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8.13.2 Carrier Waveform Shape

PWM is only available for the Square waveform. Press [Wave] > Square.

8.13.3 Carrier Waveform Duty

Press [Wave] > Square softkey to select square as carrier waveform. Press [Setting] >

Duty softkey, then input the required value through the numeric keypad or knob.

8.13.4 Modulation Source

Press [Mod] > SignalSrc softkey to select Internal, External or Another Channel as the modulation source.

internal Source

When internal modulation source is selected, press Shape softkey to select Sine, Square, Ramp, Noise or Arb as the modulation source. The default is Sine.

⚫ Sine ⚫ Square: 50% duty cycle ⚫ Ramp: 50% symmetry. ⚫ Noise ⚫ Arb: Sinc, Exp Fall, Haver Sine, Lorentz, Gause, Dual Tone, ECG.

Note: Noise can be used as modulating waveform but cannot be used as carrier

waveform.

external Source

When external modulation source is selected, the Frequency and Shape menu in the modulation menu is grayed out and disabled. The instrument receives the external modulation signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. The Duty Deviation is controlled by ±4V signal level on this connector.

another ch

CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used as the modulated wave, CH2 can be used as the modulation source. And vice versa. When selecting another channel as the modulation source, please turn on the output of that channel.

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8.13.5 Modulation Frequency

When internal modulation source is selected, press [Mod] > Frequency softkey to set the frequency of the modulating waveform. ⚫ Use the numeric keypad or direction keys and knob to enter the desired frequency

value. ⚫ The modulating waveform frequency range is 2mHz to 1MHz, and the default value

is 100Hz.

Note: This menu will be grayed out and disabled when other modulation sources

except the internal modulation source is selected.

8.13.6 Duty Deviation

Press [Mod] > Deviation softkey and input the desired value using the numeric keypad or direction keys and knob. Duty deviation represents the variation (in %) of the modulated waveform Duty relative to the original pulse Duty.

⚫ Duty deviation range: 0.1% to 49.9%. ⚫ The Duty deviation cannot exceed the current pulse Duty. ⚫ Duty deviation is limited by the minimum Duty and current edge time setting.

When external modulation source is select, the Duty deviation is controlled by the ±4V signal level on the [FSK/Trig/Sync/Extmod] connector on the rear panel

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9 Sweep

In sweep mode, the instrument outputs the waveform that changes from the start frequency to the stop frequency at a specified sweep rate. HDG3000B supports linear sweep mode. Users can configure the instrument to output one sweep from start frequency to stop frequency by applying an external or manual trigger. The instrument can sweep sine, square, pulse, ramp, Harmonic or arbitrary waveforms (expect DC).

9.1 Select Sweep

Press [Sweep] button on the front panel to enable the Sweep function (the backlight of the key goes on), and Mod or Burst function will be automatically disabled (if currently enabled). To avoid multiple waveform changes, enable the sweep mode after configuring the other parameters (as waveforms and amplitudes of basic waves). Press [Sweep] button again to close sweep mode.

9.2 Start Frequency and Stop Frequency

The generator sweeps from the start frequency to the stop frequency and then returns back to the start frequency. ⚫ Start Frequency < Stop Frequency: the generator sweeps from low frequency to

high frequency. ⚫ Start Frequency > Stop Frequency: the generator sweeps from high frequency to

low frequency. ⚫ Start Frequency = Stop Frequency: the generator outputs with a fixed frequency. When [Sweep] is enabled, press Start Freq/Center Freq softkey to highlight the "Start Freq". The "Stop Freq" in the Stop Freq/Freq Span softkey is also highlighted. Use the numeric keyboard or direction keys and knob to input the desired frequencies. By default, the start frequency is 100Hz and the stop frequency is 1KHz. Different sweep waveform corresponds to different start frequency and stop frequency range. For frequency parameters of different waveforms, please refer to "Frequency Characteristics" in Specifications. After modifying the frequency, the generator will restart to output the frequency sweep signal with the specified frequency.

9.3 Center Frequency and Frequency Span

Users can also set the sweep frequency boundaries of the sweep using a center frequency and frequency span. ⚫ Center Frequency = (|Start Frequency + Stop Frequency|) / 2

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⚫ Frequency Span = Stop Frequency – Start Frequency When [Sweep] is enabled, press Start Freq/Center Freq softkey to highlight "Center

Freq". The "Freq Span" in the Stop Freq/Freq Span softkey is also highlighted. Use the numeric keyboard or direction keys and knob to enter the desired frequency values. By default, the center frequency is 550Hz and the frequency span is 900Hz. Different sweep waveform corresponds to different center frequency and frequency span range and center frequency and frequency span are inter-related.

Define the minimum frequency of the waveform currently selected as Fmin, the maximum frequency as Fmax and Fm = (Fmin+Fmax)/2. The range of center frequency is from Fmin to Fmax. For frequency parameters of different waveforms, please refer to "Frequency Characteristics" in Specifications.

The range of the frequency span is influenced by the center frequency: Center frequency <Fm: frequency span range is ±2 × (center frequency - Fmin); Center frequency ≥Fm: frequency span range is ±2 × (Fmax- center frequency).

Take sine as an example. Fmin is 1μHz, Fmax is 160MHz and Fm is about 80MHz. If the center frequency is 550Hz, the range of the frequency span is: ±2 × (550Hz – 1μHz) = ±1.099999998kHz; if the center frequency is 155MHz, the range of the frequency span range is: ±2 × (160MHz – 155MHz) = ±10MHz.

After modifying the frequency, the generator will restart to output the frequency sweep signal with the specified frequency.

Note: In large-scale sweep, the amplitude characteristic of the output signal might

change.

9.4 Linear Sweep

HDG3000B provides linear sweep type. The output frequency of the instrument varies linearly in the way of "several Hertz per second". The variation is controlled by "Start Freq", "Stop Freq" and "Swep Time".

9.5 Sweep Time

Sweep time specifies the time required to sweep from the start frequency to the stop frequency. When [Sweep] is enabled, press Swep Time softkey and use the numeric keyboard or knob to change the sweep time. The default value is 1s and the settable range is from 1ms to 50Ks.

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9.6 Return Time

Return time specifies the number of seconds to return from the stop frequency to the start frequency. When [Sweep] is enabled, press the Ret Time softkey and use the numeric keyboard or knob to change the return time. The default value is 1s and the settable range is from 1ms to 50Ks.

9.7 Hold Time

The hold time specifies how long time the waveform stays at the stop frequency. When [Sweep] is enabled, press the Hold Time softkey and use the numeric keyboard or knob to change the hold time. The default value is 1s and the settable range is from 1ms to 50Ks.

9.8 Mark Frequency

When the output signal frequency is less than the specified mark frequency, there will output the low level signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. When the output signal frequency is at or greater than the specified mark frequency, the signal outputs on the [FSK/Trig/Sync/Extmod] connector will change from low level to high level. When [Sweep] is enabled, press Tag Frequency softkey and use the numeric keyboard or the direction keys and knob to modify the mark frequency. The default value is 500Hz and the settable range is limited by the "Start Frequency" and "Stop Frequency".

9.9 Sweep Trigger Source

The sweep trigger source could be internal, external or manual. The generator will generate a sweep output when a trigger signal is received and then wait for the next trigger signal. When [Sweep] is enabled, press Trig Src softkey to select internal, external or

manual. The default is internal.

⚫ internal: The generator outputs continuous sweep waveform at a rate determined

by the total of the specified sweep time, return time and hold time.

⚫ external: The signal generator receives the trigger signal from the

[FSK/Trig/Sync/Extmod] connector on the rear panel. A sweep will be generated

once the connector gets a TTL pulse with specified polarity. To set the TTL pulse

polarity, press Polarity to select "Positive" or "Negative". The default is "Positive". ⚫ manual: A sweep will be generated from the corresponding channel once you

press [Trigger] at the front panel.

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9.10 Trigger Output Edge

In sweep mode, when "Internal" or "Manual" trigger source is selected, the generator will output a TTL compatible signal with specified edge from the

[FSK/Trig/Sync/Extmod] connector on the rear panel. Internal and Manual Trigger:

The generator outputs a Pulse waveform from the [FSK/Trig/Sync/Extmod] connector on the rear panel at the beginning of the Sweep. The trigger period depends on the specified frequency sweep time, return time, and hold time. When the output signal frequency is less than the specified mark frequency, there will output the low level signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. When the output signal frequency is at or greater than the specified mark frequency, the signal outputs on the [FSK/Trig/Sync/Extmod] connector will change from low level to high level.

External Trigger:

The [FSK/Trig/Sync/Extmod] connector is used as the input terminal of external trigger signal and has no trigger output

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10 Burst

The HDG3000B can output a waveform for a specified number of cycles, called a burst. It supports control of burst output by internal, external or manual trigger source; supports three kinds of burst types including N cycle, Infinite cycle and Gated. Burst is allowed with sine, square, ramp, pulse, Harmonic, noise (allowed only in gated burst mode) or arbitrary waveforms (except DC).

10.1 Select Burst

Press [Burst] button on the front panel to enable Burst function (the backlight of the key goes on), and Mod or Sweep function will be automatically disabled (if currently enabled). To avoid multiple waveform changes, enable burst mode after configuring other parameters.

10.2 Burst Type

This instrument could output three types of bursts, including N Cycle, Infinite Cycle and Gate. The default is N Cycle.

Burst Type

Trigger Source

Carrier Waveform

N Cycle

Internal/External/Manual

Sine/Square/Ramp/Pulse/Harmonic/Arbitr ary waveform (except DC)

Infinite

External/Manual

Sine/Square/Ramp/Pulse/Harmonic/Arbitr ary waveform (except DC)

Gated

Ext

Sine/Square/Ramp/Pulse/Noise/Harmoni c/Arbitrary waveform (except DC)

Table 10.1 Table Burst type

N Cycle Burst

In N Cycle mode, the generator will output waveform with specified number of cycles after receiving trigger signal. Press [Burst] > Type softkey to select “N Cycle”.

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Figure 10.1 N Cycle Burst

For N Cycle mode, the trigger source includes "Internal", "External" or "Manual". Besides, users can set the "Phase", "Count", "Burst Period" (internal trigger), "Trigger Slope" (external trigger) and "Trigger" (manual trigger).

Infinite Cycle Burst

In Infinite Cycle mode, the cycle number of the waveform is set as an infinite value. The generator outputs a continuous waveform after receiving trigger signal. Press [Burst] > Type softkey to select “Inf Cycle”. A schematic diagram of infinite cycle pulse will be displayed on the screen.

Figure 10.2 Infinite Cycle Burst

For Infinite Cycle mode, the trigger source includes "Internal", "External" or "Manual". Besides, users can set the "Phase", "Count" and "Trigger Slope" (external trigger) and "Trigger" (manual trigger).

Gated Burst

In Gated Mode, the generator controls the waveform output according to the external signal level from the [FSK/Trig/Sync/Extmod] connector on the rear panel. Press [Burst] > Type softkey to select “Gate” and then press Polarity to set the gated

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polarity as "Positive" (or "Negative"). The generator outputs burst waveform only when the gated signal is "Positive" (or "Negative").

Figure 10.3 Gate Burst

When the gated signal is "True", the generator outputs a continuous waveform; when the gated signal is "False", the generator completes the current period, and then stops and holds on the voltage level corresponding to the initial burst phase of the selected waveform. For Noise waveform, the output will stop immediately once the gated signal becomes "False". Gated Burst could only be triggered by External trigger source. In addition, users can set the "Phase".

10.3 Burst Count

Burst count is the number of carrier waveforms in one burst period. It is only available for N Cycle Burst mode (internal, external, or manually trigger sources). For internal trigger source, Burst period ≥ 1μs + Carrier Waveform Period × Burst Count. Press [Burst] > Type softkey to select “N Cycle”. The “Count” parameter is highlighted and is editable. And use the numeric keypad or direction keys and the knob to input the desired count. The default is 1 and the settable range is 1 to 2000 000 000. This menu will be grayed out and disabled when the burst type is set to Infinite cycle or Gated.

10.4 Burst Period

Burst period is the time from the start of one burst to the start of next burst. It is only available for N Cycle burst in internal trigger. The default is 10 ms.

⚫ Burst period ≥ 1μs + Carrier Waveform Period × Burst Count. ⚫ If the burst period is set to too small, the generator will increase this period

automatically to allow the output of the specified number of cycles. Press [Burst] > Type softkey to select N Cycle. Press Trig Src softkey and select Internal, then press Period softkey, and use the numeric keypad or direction keys and

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the knob to input the desired period. The default value is 10ms and the settable range is 2μs to 500s. This menu will be grayed out and disabled when the burst type is set to Infinite cycle or Gated.

10.5 Burst Phase

Burst phase is defined as the phase of the start point of the burst. When Burst is enabled, press Phase softkey and use the numeric keypad or direction keys and the knob to input the desired phase. The default value is 0° and the settable range is 0° to 360°. ⚫ For Sine, Square, Ramp and Pulse, 0° is the point where the waveform passes

through 0V (or DC offset value) positively.

⚫ For arbitrary waveform, 0° is the first point of the waveform. ⚫ For Noise, Start Phase is unavailable.

10.6 Trigger Source

Burst trigger source could be internal, external or manual. The generator will generate a burst output when a trigger signal is received and then wait for the next trigger When Burst is enabled, press Trig Src softkey to select "internal", "external" or "manual". The default setting is "Internal".

Internal Trigger

When internal trigger is selected, the generator can only output N cycle burst and the burst frequency is determined by the "Burst Period".

External Trigger

When external trigger is selected, the generator can output N cycle, infinite or gated burst. The generator receives the trigger signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel. A burst will be generated once the connector receives a TTL pulse with specified slope or polarity. To set the extrenal trigger slope, press Slope softkey to select "Rising" or "Falling" and the default is "Rising".

Manual trigger

When manual trigger is selected, the generator can output N cycle or infinite burst. A burst will be generated from the corresponding channel (if currently turned on) Once the Trigger button at the front panel is pressed. If the corresponding channel is not turned on, the trigger will be ignored.

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10.7 Gate Polarity

Gate polarity is only available in gated burst mode. The generator will output burst when the gated signal from the [FSK/Trig/Sync/Extmod] connector on the rear panel is "High Level" or "Low Level". When Burst is enabled, press Type softkey to select "Gate" and press Polarity softkey to select "Positive" or "Negative". The default is "Positive".

10.8 Trigger Output Edge

In burst mode, when the trigger source is "Internal" or "Manual", the generator would output a TTL-compatible signal with specified edge from the [FSK/Trig/Sync/Extmod] connector on the rear panel. ⚫ Internal trigger: The generator outputs a square waveform with variable duty cycle

(related to the carrier period and number of cycles) from the

[FSK/Trig/Sync/Extmod] connector at the start of the burst. ⚫ Manual trigger: The generator outputs a pulse from the [FSK/Trig/Sync/Extmod]

connector at the start of the burst. ⚫ External Trigger: The [FSK/Trig/Sync/Extmod] connector is used as the input

terminal of external trigger signal and has no trigger output.

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11 Counter

The generator provides a counter which can measure various parameters (such as frequency, period, duty cycle, positive pulse width and negative pulse width) of external input signal. Press [Utility] > Counter softkey on the front panel to enable counter function. Input the singal to the Counter connector on the rear panel measure. Press Exit softkey or any other key to exit the counter. Press Gate Time softkey and use the direction keys and the knob to modify the current value. The default value is 1s and the settable range is 10ms to 16s.

Figure 11.1 Counter

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12 Store

The instrument allows the user to store the current settings state of the instrument in internal or external storage and recall it when needed.

12.1 Store System

The instrument provides an internal memory (home disk) and an external memory (USB disk). Home disk: Users can save the instrument settings state to this disk in.pho format. And the file also can be recalled. USB disk: Available when the instrument detects external storage (front USB port). Users can save the instrument settings state to external storage in.pho format. The state files .pho and arbitrary waveform files .hwf in the external memory can be recalled. The instrument settings state file includes waveform basic parameters, Mod/Sweep/Burst parameters and counter parameters. Press [Utility] > Store softkey to open the store interface, as shown in the figure below.

Figure 12.1 Store Interface

Note: The instrument can only identify filenames consist of English letters, number

and underscore. If other characters are used to name the file or folder, the name

might be displayed in the store and recall interface abnormally.

12.2 File Operation

Press [Utility] > Store softkey to enter File System, users can perform a series of operations on files or directories including New, Save, Recall, Rename, Delete, and

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Refresh.

New File

In Store interface, rotate the knob to select home disk or usb disk, and then press New softkey to enter the filename editing interface, as shown in the figure below.

Figure 12.2 New File Interface

1. Press Type softkey to select "File".

File: Create a new state file.

Directory: Create a new directory.

2. Press Swi Focus softkey and select Name or Keypad.

Name: Put the cursor in the Filename Input Area. Use direction keys to move the

cursor position and specify the location of the modified character.

Keypad: Put the cursor in the Virtual Keyboard. Rotate the knob to move the cursor

position and press down the knob to input the character. In the virtual keyboard,

rotate the knob to select Caps and press down to switch between uppercase and

lowercase; rotate the knob to select Shift and press down to switch some symbols.

3. Press Back softkey to remove the characters in front of the cursor one by one.

4. Press Delete softkey to delete all the characters in the Filename Input Area.

5. After entering the file name in the Filename Input Area, press Save softkey to save

the state file.

6. Press Return softkey to exit the New menu and return to the previous menu.

Save

Press Save softkey to automatically create a new state file and save it.

Recall

Press Recall softkey to recall the state file or arbitrary waveform file.

Rename

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Use the knob to select the specified file or directory and press Rename softkey to rename. Refer to the operation method of creating a new file. After the completion of the denominate, press Confirm softkey to confirm the change.

Figure 12.3 Rename Interface

Delete

Use the knob to select the specified file or directory and press Delete softkey to delete the selected file or directory.

Refresh

Press Refresh softkey to refresh the file list.

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13 Utility

The signal generator allows the user to configure channel parameters, configure remote interfaces, and set system parameters.

13.1 Sync

The synchronous signal is output from the [FSK/Trig/Sync/Extmod] connector on the rear panel. The instrument could output the sync signals of basic waveforms (except Noise), arbitrary waveforms (except DC), Harmonics, Sweep, Burst and Modulation from a single channel or two channels at the same time. ⚫ The sync signal is a square waveform that is "high" in the first half of the cycle and

"low" in the second half. When sync signal is disabled, the output level at the

[FSK/Trig/Sync/Extmod] connector is logic low. ⚫ The amplitude of Sync signal is not adjustable and is fixed at TTL level.

Sync Signals of Various Waveforms

⚫ For Sine, Square, Ramp, and Pulse, the sync signal is a Square with 50% duty

cycle. When the first wave point is output, the synchronization signal is TTL high

level. When the frequency of the basic waveform is less than or equal to 30 MHz,

the sync signal has the same frequency as the basic waveform. When the

frequency of the basic waveform is greater than 30 MHz, the frequency of the sync

signal is (the basic waveform frequency ÷2n). Wherein, n represents the frequency

dividing coefficient, and it is 1 when the frequency of the basic waveform is greater

than 30 MHz and less than or equal to 60 MHz, and it is 2 when the frequency of

the basic waveform is greater than 60 MHz and less than or equal to 90 MHz.

⚫ For noise, there is no sync signal output. ⚫ For arbitrary waveform, the sync signal is a square with 50% duty cycle. When the

first wave point is output, the sync is TTL high level. The frequency of the sync

signal is the frequency of arbitrary waveform. ⚫ For harmonics, the sync signal is a square with 50% duty cycle. When the first

waveform point is output, the sync signal is TTL high level. The frequency of the

sync signal is the frequency of the basic wave. ⚫ For AM, DSB-AM, FM, PM and PWM modulation, when internal modulation source

is selected, the sync signal is a square with 50% duty cycle and takes modulating

frequency as reference. When the first waveform point is output, the sync signal is

TTL high level. When external modulation source is selected, there is no sync

signal output. ⚫ For ASK, FSK, PSK, BPSK, QPSK, 3FSK, 4FSK, OSK modulation, the sync signal

is a square with 50% duty cycle and takes the modulating rate as reference. For

ASK, FSK, PSK, OSK modulation, when external modulation is selected, there is

no sync signal output. ⚫ For Sweep, when the frequency of the sweep signal is less than the mark

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frequency, the sync signal is a TTL low level. When the frequency of the sweep

signal is at or greater than the mark frequency, the sync signal is changed from TTL

low level to TTL high level. ⚫ For N-cycle burst, when internal or manual are selected as the trigger source, the

sync signal is TTL high level at the start of the burst. At the end of the specified

count of cycles, the sync signal is TTL low level (it may not be zero intersection if

the waveform has an associated starting phase). For an infinite-cycle burst, when

manual triggered is selected, the sync signal is the same as that of the basic

waveform. For all burst types, when external trigger is selected, there is no sync

signal output.

13.2 Impedance Settings

The Impedance setting affects the output amplitude and DC offset voltage. For the front panel [1] connector, the HDG3000B has a fixed series output impedance of 50Ω. If the actual load is different from the specified value, then the displayed voltage level will not match the voltage level of the components under test. To ensure the correct voltage level, ensure that the load impedance setting must match the actual load.

Press [Utility] > CH1 Set > Imped softkey to choose HighZ or 50Ω. The default setting is HighZ. Impedance settings will be displayed on the screen. As shown in the figure below, the impedance of CH1 is set to "HighZ".

Figure 13.1 Impedance

The generator will adjust the output amplitude and offset voltage automatically once the impedance setting is changed. For example, the current amplitude is 5Vpp and the

output impedance is 50Ω. At this point, change the output impedance to HighZ and the

amplitude displayed on the screen will double to 10Vpp. And the current amplitude is

5Vpp and the output impedance is HighZ. At this point, change the impedance to 50Ω,

the amplitude will reduce to half of the previous value (2.5Vpp).

Note: Only the displayed values change with the parameter and the real output

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from the generator does not change.

13.3 System Settings

13.3.1 Language

The signal generator supports Chinese and English menu, and provides corresponding help information, prompt information and interface display. Press [Utility] > Language softkey to select the desired language. When "Chinese" or "English" is selected, the menu, help message, prompt message, and interface are displayed in Chinese or English, respectively. The language is not changed when the [P] key is pressed to restore the default settings.

13.3.2 Clock Source

The instrument provides an internal 10MHz clock source and can receive the external clock source from the [10MHz In/Out] connector at the real panel. It can also output the internal clock source from the [10MHz In/Out] connector for other devices.

Press Utility > Clock Src softkey to select "Internal" or "External". The default is "Internal". If "External" is selected, the instrument will detect whether a valid external clock signal is input from the [10MHz In/Out] connector at the real panel. If no valid clock source is detected, the prompt message "No valid 10MHz External Clock is detected" would be displayed and the clock source would be switched to "Internal".

Users can also synchronize two or more instruments by setting the clock source. When two instruments are synchronized, the SYNC of phase cannot be used. The SYNC of phase can only be used to adjust the phase relation between two output channels of the same instrument and cannot be used to change the phase relation between the output channels of two instruments. Users can change the phase relation between two instruments by change the "Start Phase" of each channel.

Sync methods for two or more instruments:

⚫ Synchronization between two instruments:

Connect the 10MHz In/Out connector of Generator A (set the clock source to

"Internal") to the 10MHz In/Out connector of Generator B (set the clock source to

"External") and set the output frequencies of the two instruments as a same value

to realize the synchronization between the two instruments. ⚫ Synchronization among multi-instruments:

Divide the 10MHz clock source of a generator (set the clock source to "Internal")

into multiple paths; then, connect them to the 10MHz In/Out connectors of the

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other generators (set the clock source to "External) respectively. Finally, set the

output frequencies of all the generators as a same value to realize the

synchronization among multi-instruments.

13.3.3 Power On Settings

Set the configuration to be used when the instrument is powered on the next time to

Default, Last or Output OFF. The default setting is "Default".

⚫ Default: Denote the factory default settings except some parameters (such as:

Language). ⚫ Last: Include all the system parameters and output configuration, except clock

source. ⚫ Output OFF: The last setting will be used and all output will be closed. Press [Utility] > Startup softkey to select the desired configuration type. When [P] key is pressed to restore the default settings, this setting will not be affected.

13.3.4 Intensity

Press [Utility] > Intensity softkey and use the direction keys and the knob to change the backlight intensity of the screen. The ranges from 1% to 100%.

13.3.5 System Information

Press [Utility] > System Info softkey to view the information of the device (such as model, serial number, version number, etc.).

13.3.6 Unit

Press [Utility] > Units softkey to select units of waveform parameters.

⚫ Frequency/Period - Select the period or frequency as the waveform parameter that

can be set. ⚫ Amplitude/high level - Select the amplitude or high level as the waveform

parameter that can be set. ⚫ Offset/Low Level - Select the offset or low level as the waveform parameter that

can be set. ⚫ Pulse width/duty cycle - Select the pulse width or duty cycle as the pulse

parameters that can be set.

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13.3.7 Save Picture

Users can store the content displayed on the screen in an external storage device in the form of pictures. First, please connect the USB stick (FAT32 format, storage space is less than or equal to 32G) and insert the USB stick into the USB port on the front panel of the instrument. After successful connection, the corresponding prompt message pops up on the screen.

Then enter the interface that you need to save, and press [Utility] button, the instrument completes the screenshot and enters the Utility menu. At this time, the signal generator has cached the screenshot inside the instrument. Press SavePic softkey, and the instrument will save the screenshot to the USB stick.

Note: The screenshot cached is always the screen at the last time the [Utility]

button was pressed.

13.4 Firmware Update

Copy the firmware to a USB stick (FAT32 format, storage space is less than or equal to 32GB) and insert the USB stick into the USB port on the front panel of the instrument. Press [Utility] > Update softkey, enter the file browser interface, use the knob to select the firmware file, press Recall softkey to specify the file, and then press OK softkey to start the firmware update.

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14 Remote Control

The HDG3000B can be controlled remotely through the following two methods.

Use PC software

Users can use the PC software to send commands to remotely control the instrument. You can download the software from our official website.

User-defined programming

Users can program and control the instrument by using the SCPI (Standard Commands for Programmable Instruments) commands. For more information about the commands and programming, refer to the SCPI protocol manual. HDG3000B can communicate with PC through USB. This chapter will give a detailed introduction of how to use software to control HDG3000B remotely through the real USB port.

⚫ Install Keysight IO libraries suite ⚫ Remote Control via USB

14.1 Install Keysight IO libraries suite

Users can download the application software package on the official website of Hantek:

http://hantek.com/products/detail/17187

Or click the following website to download latest one：

http://www.keysight.com/main/software.jspx?ckey=2175637&id=2175637&nid=-111

43.0.00&lc=eng&cc=GB

Double click the icon to start installing.

Click ‘Next’ to continue.

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Read License Agreement and accept. Click ‘Next’ to continue.

Select a Typical and click ‘Next’ to continue.

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Or select a Custom and click ‘Next’ to continue.

Select “Install Keysight VISA as primary VISA” and click ‘Next’ to continue.

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Click ‘Install’ to start copying files.

The installation is completed automatically. You will see the running IO program in the lower right corner of the screen.

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14.2 Remote Control via USB

Connect the device

Connect the instrument with your PC using a USB cable.

Search for device resource

Start up Keysight IO and the software will automatically search for the instrument resource currently connected to the PC. You can also click Rescan to search for the resources.

View the device resource

The resource found will appear under the directory, and the model number and USB interface information of the instrument will also be displayed. For example, HDG3102C(USB0::0x0483::0x5740::************::0::INSTR)

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Control the instrument remotely

1. Use PC software

Users can download the application software package on the official website of Hantek:

http://hantek.com/products/detail/17187

Double-click the Setup.exe file and install it according to the installation wizard. After the installation is complete, the software icon will be displayed on the computer desktop.

Double click the software icon on the desktop after you finished the software setting and equipment connecting. Then a user interface will be showed as follows:

2. User-defined programming

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Start up Keysight IO and the software will automatically search for the instrument resource currently connected to the PC. Click “Send Commands To This Instrument” to open Keysight interactive IO interface. You can send commands and read data.

For more information about the commands and programming, refer to the SCPI protocol manual.

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15 Troubleshoot

The following lists the possible faults and troubleshooting methods during the use of HDG3000B. When you encounter these faults, please follow the corresponding steps to deal with them. If you cannot solve them, please contact the local distributor or directly contact Hantek, and please provide the system information of the machine. (Get method:

[Utility] -> System Info).

1. When press the power button, the instrument displays a black screen:

1) Check whether the power cord connector is connected properly.

2) Check whether the power button is pressed firmly.

3) After completing the above checks, restart the instrument.

4) If the product still cannot be used normally, please contact Hantek.

2. The screen display is too dark to see clearly:

1) Check whether the backlight intensity of the LCD screen is too small.

2) Press [Utility] -> Intensity, use the numeric keyboard to adjust the backlight

intensity of the LCD screen of the instrument to a suitable state. You can also use

the arrow keys and knob to adjust the backlight intensity.

3. The instrument settings are correct but no waveform output:

1) Check that the BNC cable is securely connected to the output connector of [CH1]

or [CH2] channel.

2) Check whether the BNC cable is damaged internally.

3) Check whether the BNC cable is tightly connected to the test instrument.

4) Check whether the backlight of the Output1 or Output2 button is lit. If it is not lit,

press the corresponding button to turn on.

5) If the product still cannot be used normally after completing the above checks,

please contact Hantek.

4. The USB stick device cannot be recognized:

1) Check whether the USB stick device can work normally when connected to other

instruments or computers.

2) Confirm that the USB stick is a FAT32 formatted device.

3) After restarting the instrument, insert the USB stick device to check again.

4) If the USB stick still cannot be used normally, please contact Hantek.

5. How to set the amplitude of the waveform in dBm?

1) Select the desired channel.

2) Check whether the output impedance in the channel setting interface is 50Ω ([Utility]

-> CH1 Set).

3) Select the desired waveform, press the Amplitude softkey, input the desired value

through the numeric keyboard and select the unit dBm.

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16 Appendix

16.1 Appendix A: Accessories

Order information

Order number

Host model

15MHz，2-channel

HDG3012B

25MHz，2-channel

HDG3022B

40MHz，2-channel

HDG3042B

60MHz，2-channel

HDG3062B

80MHz，2-channel

HDG3082B

100MHz，2-channel

HDG3102B

Standard accessories

Power cord that conforms to the standard of the host country

— —

BNC to BNC

HT322

Crocodile clip（2）

HT324

USB cable

— —

16.2 Appendix B: Warranty summary

Qingdao Hantek Electronics Co., LTD. (hereinafter referred to as Hantek) undertakes that the host and accessories of its production shall be free from any material and process defects during the warranty period. During the warranty period, if the product is proved to be defective, Hantek will repair or replace the product free of charge. Please refer to the description on Hantek official website for detailed warranty regulations. For repair service or full warranty instructions, please contact Hantek repair center or local offices. Hantek disclaims warranties, express or implied, other than those provided in this

Hantek HDG3042B, HDG3102B, HDG3012B User guide

Warranties and Declarations

Contents

Figures

Tables

1 Safety requirements

1.1 Summary of general safety matters

1.2 Safety terms and symbols

1.3 Measurement category

1.4 Working conditions

1.5 Maintenance and cleaning

1.6 Environmental Precautions

2 Product features

3 Document overview

4 Quick start

4.1 General checking

4.2 Appearance and dimension

4.3 Preparation before use

4.3.1 Connect the power supply

4.3.2 Adjust the Handle

4.3.3 Set system language

4.4 Product Introduction

4.4.1 Front Panel

4.4.2 Rear Panel

4.4.3 Main interface

4.5 Parameter Setting Method

4.5.1 Numeric Keypad

4.5.2 Direction Keys and Knob

4.6 Using the built-in help system

5 Basic Waveform Output

5.1 Select the Channel

5.2 Set the Parameter

5.2.1 Select the Basic Waveform

5.2.2 Set the Frequency

5.2.3 Set the Amplitude

5.2.4 Set the DC Offset Voltage

5.2.5 Set the Start Phase

5.2.6 Set the Duty Cycle

5.2.7 Set the Symmetry

5.2.8 Set the Pulse Parameters

5.2.9 Enable the Channel Output

5.3 Basic Waveform Output Example

6 Arbitrary Waveform Output

6.1 Enable Arbitrary Waveform

6.2 Select Arbitrary Waveform

7 Harmonic Output

7.1 Overview

7.2 Set the Basic Waveform Parameters

7.3 Set the Harmonic Order

7.4 Set the Harmonic Type

7.5 Set the Harmonic Amplitude

7.6 Set the Harmonic Phase

8 Modulation

8.1 AM Modulation

8.1.1 Select AM Modulation

8.1.2 Carrier Waveform Shape

8.1.3 Carrier Waveform Frequency

8.1.4 Modulation Source

8.1.5 Modulation Frequency

8.1.6 Modulation Depth

8.2 DSB-AM Modulation

8.2.1 Select DSB-AM Modulation

8.2.2 Carrier Waveform Shape

8.2.3 Carrier Waveform Frequency

8.2.4 Modulation Source

8.2.5 Modulation Frequency

8.2.6 Modulation Depth

8.3 FM Modulation

8.3.1 Select FM Modulation

8.3.2 Carrier Waveform Shape

8.3.3 Carrier Waveform Frequency

8.3.4 Modulation Source

8.3.5 Modulation Frequency

8.3.6 Frequency Deviation

8.4 PM Modulation

8.4.1 Select PM Modulation

8.4.2 Carrier Waveform Shape

8.4.3 Carrier Waveform Frequency

8.4.4 Modulation Source

8.4.5 Modulation Frequency