VOLTCRAFT FG-31602T, FG-30802T, FG-32502T User guide
Dual-Channel
Arbitrary Waveform Generator
User Manual
FG-30802T
FG-31602T
FG-32502T
General Warranty
We warrant that the product will be free from defects in materials and workmanship
for a period of 3 years from the date of purchase of the product by the original
purchaser from our company. The warranty period for accessories such as probes,
battery is 12 months. This warranty only applies to the original purchaser and is not
transferable to a third party.
If the product proves defective during the warranty period, we will either repair the
defective product without charge for parts and labour, or will provide a replacement
in exchange for the defective product. Parts, modules and replacement products
used by our company for warranty work may be new or reconditioned like new. All
replaced parts, modules and products become the property of our company.
In order to obtain service under this warranty, the customer must notify our
company of the defect before the expiration of the warranty period. Customer shall
be responsible for packaging and shipping the defective product to the designated
service centre, a copy of the customers proof of purchase is also required.
This warranty shall not apply to any defect, failure or damage caused by improper
use or improper or inadequate maintenance and care. We shall not be obligated to
furnish service under this warranty a) to repair damage resulting from attempts by
personnel other than our company representatives to install, repair or service the
product; b) to repair damage resulting from improper use or connection to
incompatible equipment; c) to repair any damage or malfunction caused by the use
of not our supplies; or d) to service a product that has been modified or integrated
with other products when the effect of such modification or integration increases
the time or difficulty of servicing the product.
Please contact the nearest Sales and Service Offices for services.
Excepting the after-sales services provided in this summary or the applicable warranty
statements, we will not offer any guarantee for maintenance definitely declared or hinted,
including but not limited to the implied guarantee for marketability and special-purpose
acceptability. We should not take any responsibilities for any indirect, special or
consequent damages.
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Table of Contents
1. General Safety Requirement ................................................................ 1
2. Safety Terms and Symbols .................................................................... 2
3. Quick start ............................................................................................ 3
Front panel .................................................................................................................................. 3
Rear Panel ................................................................................................................................... 5
Power On ..................................................................................................................................... 6
User Interface .............................................................................................................................. 7
Use Build-in Help ......................................................................................................................... 8
4. Panel Operation ................................................................................... 9
Channel Setting ........................................................................................................................... 9
Select the channel for configuration .................................................................................. 9
Turn On/Off Channel Output .............................................................................................. 9
Channel Copy ...................................................................................................................... 9
Waveform Setting........................................................................................................................ 9
Output Sine Wave ............................................................................................................. 10
Set the frequency/period ......................................................................................... 10
Set the amplitude ..................................................................................................... 11
Set the offset ............................................................................................................. 11
Set the high level....................................................................................................... 11
Set the low level ........................................................................................................ 11
Set the start phase .................................................................................................... 12
Output Square Wave ......................................................................................................... 12
Output Ramp Wave ........................................................................................................... 13
Set the symmetry ...................................................................................................... 13
Output Pulse Wave ........................................................................................................... 14
Set the pulse width/duty cycle ................................................................................. 17
Set the rising/falling time ......................................................................................... 18
Output Noise Wave ........................................................................................................... 18
Output Arbitrary Wave ..................................................................................................... 19
Choose build-in waves .............................................................................................. 20
Output Harmonic Wave .................................................................................................... 25
Harmonic wave function overview ........................................................................... 25
Select the harmonic type .......................................................................................... 25
Set the harmonic times ............................................................................................. 26
Set the harmonic number ......................................................................................... 26
Set the harmonic amplitude ..................................................................................... 26
Set the harmonic phase ............................................................................................ 26
Output the modulated waves ................................................................................................... 27
Amplitude Modulation(AM) ............................................................................................. 27
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Frequency Modulation (FM) ............................................................................................. 29
Phase Modulation (PM) .................................................................................................... 31
Pulse Width Modulation (PWM) ...................................................................................... 32
Amplitude shift keying (ASK) ............................................................................................ 33
Phase Shift Keying (PSK).................................................................................................... 35
Frequency Shift Keying (FSK) ............................................................................................ 37
Hexadecimal frequency shift keying (3FSK) .............................................................................. 38
Quaternary frequency shift keying (4FSK) ................................................................................ 39
Binary phase shift keying (BPSK) ............................................................................................... 40
Oscillating keying (OSK)............................................................................................................. 41
Output the sweep frequency (Sweep) ...................................................................................... 43
Output the burst (Burst) ........................................................................................................... 44
Set N cycle burst ............................................................................................................... 45
Set the gated burst ........................................................................................................... 46
Counter...................................................................................................................................... 47
Utility function setting .............................................................................................................. 48
Display Setting ................................................................................................................... 48
Brightness Control..................................................................................................... 48
Screen Saver .............................................................................................................. 49
Separator ................................................................................................................... 49
Date ........................................................................................................................... 49
CH1/2 Settings................................................................................................................... 49
Synchronize ............................................................................................................... 49
Output Setting ................................................................................................................... 50
Set the load ............................................................................................................... 50
Interface Setting ................................................................................................................ 51
System Setting ................................................................................................................... 52
Select the language ................................................................................................... 52
Buzzer ........................................................................................................................ 52
Clock source .............................................................................................................. 52
Clock Output ............................................................................................................. 53
Firmware update ....................................................................................................... 53
Restore to factory setting ......................................................................................... 53
Edit the Arbitrary Wave (Edit) .................................................................................................. 57
File system (Store)..................................................................................................................... 58
Save Current Arbitrary Wave ............................................................................................ 59
Bring up arbitrary wave files in internal/external memory .............................................. 59
Clear waveform from memory ......................................................................................... 60
Save/recall instrument settings (Preset) .................................................................................. 60
Use build-in help (Help) ............................................................................................................ 61
5. Communicate with PC ........................................................................ 62
Using USB Port .......................................................................................................................... 62
Using LAN Port .......................................................................................................................... 62
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Connect Directly ................................................................................................................ 62
Connect through a Router ................................................................................................ 63
6. Troubleshooting ................................................................................. 65
7. Specification ....................................................................................... 66
8. Appendix ............................................................................................ 73
Appendix A: Accessories ........................................................................................................... 73
Appendix B: Maintenance and cleaning ................................................................................... 73
1.General Safety Requirement
1. General Safety Requirement
Before use, please read the following safety precautions to avoid any possible
bodily injury and to prevent this product or any other connected products from
damage. In order to avoid any contingent danger, ensure this product is only used
within the range specified.
Only the qualified technicians can implement the maintenance.
To avoid Fire or Personal Injury:
Use Proper Power Cord. Use only the power cord supplied with the product
and certified to use in your country.
Product Grounded. This instrument is grounded through the power cord
grounding conductor. To avoid electric shock, the grounding conductor must
be grounded. The product must be grounded properly before any
connection with its input or output terminal.
Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings
and markers of this product. Refer to the user's manual for more information
about ratings before connecting to the instrument.
Do not operate without covers. Do not operate the instrument with covers
or panels removed.
Use Proper Fuse. Use only the specified type and rating fuse for this
instrument.
Avoid exposed circuit. Do not touch exposed junctions and components
when the instrument is powered.
Do not operate if in any doubt. If you suspect damage occurs to the
instrument, have it inspected by qualified service personnel before further
operations.
In well-ventilated area. Make sure the instrument installed with proper
ventilation, refer to the user manual for more details.
Do not operate in wet conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
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2.Safety Terms and Symbols
2. Safety Terms and Symbols
Safety Terms
Terms in this manual. The following terms may appear in this manual:
Warning: Warning indicates the conditions or practices that could result in
injury or loss of life.
Caution : Caution indicates the conditions or practices that could result in
damage to this product or other property.
Terms on the product. The following terms may appear on this product:
Danger: It indicates an injury or hazard may immediately happen.
Warning: It indicates an injury or hazard may be accessible potentially.
Caution: It indicates a potential damage to the instrument or other property might
occur.
Safety Symbols
Symbols on the product. The following symbol may appear on the product:
2
3. Quick start
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4
9
16
1
2
15
7
6
13
12
10
5
11
8
3
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1
Display Area
Display user interface
2
Menu Selection
Button
Includes 6 buttons to select the corresponding menu softkey
3
Mode Button
Modulation (Mod): Output modulation waveform
wave, pulse wave, or arbitrary wave.
4
Knob
Change the currently selected value, also used to select the
location or file
name is entered.
5
Direction Button
Move the cursor of the selected parameter
6
Function Button
Counter: Enter the frequency meter interface
Wave Edit (Edit): enter the waveform editing interface
Preset: Enter the preset menu, set the reset parameters or
Front panel
3.Quick start
Area
Area
Figure 3-1 Front Panel overview
Sweep: Scan a sine wave, square wave, ramp wave or
arbitrary wave
Burst: A burst that produces a sine wave, square wave, ramp
character in the soft keyboard when the file
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3.Quick start
power-on parameters; save or read the settings file.
Utility: Set the auxiliary system function
Store: Save/recall arbitrary waveform data
Help: To get context help for any front panel button or menu
you need help.
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Numerical Keypad
Input the parameter
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CH2 Button Area
CH2 key: Enter the waveform interface and select the CH2
channel (the backlight of the button lights up). After
selecting, the waveform and parameters of CH2 can be set.
Blue Trigger button: CH2 manual trigger button. In sweep or
burst mode, when the trigger source is selected as “Manual”,
each press of this button will initiate a trigger.
On/Off key: Turns the output of the CH2 channel on or off.
lights up.
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CH2 Sync Output
turned on, this
terminal outputs a sync signal that matches the current
configuration of CH2.
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CH2 Output
Termnial
Output CH2 signal
11
CH1⇌CH2 Button
Display channel copy menu and menu of frequency
chronization, phase
alignment, etc.
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CH1 Output
Terminal
Output CH1 signal
13
CH1 Sync Output
turned on, this
the current
configuration of CH1.
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CH1 Button Area
CH1 key: Enter the waveform interface and select the CH1
channel (the backlight of the button lights up). After
selecting, the waveform and parameters of CH1 can be set.
Yellow Trigger button: CH1 manual trigger button. In sweep
trigger source is selected as
“Manual”, each press of this button will initiate a trigger.
On/Off key: Turns the output of the CH1 channel on or off.
softkey, press the button and then press the button for which
Terminal
Terminal
When the output is turned on, the backlight of the button
When Utility → CH1/2 Set → CH2 Sync
synchronization, amplitude syn
When Utility → CH1/2 Set → CH1 Sync
terminal outputs a sync signal that matches
or burst mode, when the
When the output is turned on, the backlight of the button
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3.Quick start
lights up.
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Waveform
Including: sine , square , ramp , pulse
, the corresponding
backlight will be lit.
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USB Interface
Connect to an external USB Host device, such as a USB flash
drive.
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Power Button
Turn on/off the waveform generator
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7
6
10
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1
2
5
3
4
1
Retractable Handle
2
Vents
3
Power Input Socket
AC power input interface.
4
Fuse Box
The place to install the fuse.
5
Stool
Tilting the signal generator for easy operation.
6
LAN Interface
The signal generator is connected to the local area
network through this interface for remote control.
Selection Area
Rear Panel
, noise , arbitrary wave , harmonic waves
. When one waveform is selected
Figure 3-2 Rear Panel Overview
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7
USB Device Interface
Used to connect a USB type B controller. The PC
generator through the host computer software.
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Keyhole
A safety lock (please buy it yourself) can be used
to lock the instrument in a fixed position to secure
the instrument.
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10MHz
In/Out/Counter(Reference
The default is to receive the frequency meter input
signal. Used to receive a 10MHz clock signal when
the instrument is set to an internal clock source
used to receive an external 10MHz clock signal
source.
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Mod/FSK/Trig
When modulating the waveform, outputting the
sweep frequency, and the burst, the signal
Note: If one channel turns on AM, FM, PM, PWM
and the other channel turns on ASK, FSK,
PSK, sweep or burst, and both channels are set to
external trigger, then the channel that sets the
trigger source can be set later. With an external
trigger, the other channel automatically cancels
ger because of the different
external modulation signal types.
To prevent electric shock, make sure the instrument is properly
grounded.
clock input / output /
frequency meter input)
connector
(modulation/trigger
input) connector
3.Quick start
can be connected to communicate with the signal
and Utility → System → CLK output is On; it is
when the instrument is set to an external clock
accessed here can be used as an external source.
Power On
(1) Connect the instrument to an AC power source using the power cord supplied
with the accessory
Warning:
(2) Press the power button on the front panel and the screen will display the
booting screen.
or OSK,
the external trig
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User Interface
1
2
3
4
5
This icon is lit when the network is connected through the LAN
6
This icon is lit when connected to the USB Host via the USB DEVICE
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8
9
10
information, displays the frequency value,
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13
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3.Quick start
Figure 3-3 User Interface
Display channel name and channel status
Current waveform or current mode
Trigger source.
Internal: internal modulation or internal trigger source
External: external modulation or external trigger source
Manual: manual trigger source
Load, High Z indicates high resistance
interface.
When the instrument detects the USB flash drive, the icon lights.
Current menu name
Current waveform or mode setting menu
Frequency meter brief
period and the duty value
Display a schematic of the current waveform
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Display the current starting phase
Offset / low level, depending on the right highlighted menu item
Amplitude / high level, depending on the right highlighted menu item
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3.Quick start
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Frequency/cycle, depending on the right highlighted menu item
Use Build-in Help
(1) To get help on any front panel button or menu softkey, press the front panel
Help function button first, then press the button you need help.
(2) Press the Help function key again to exit the help interface.
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4.Panel Operation
4. Panel Operation
Channel Setting
Select the channel for configuration
Before configuring waveform parameters, you must select the channel you want to
configure. Press CH1 or CH2 to select the corresponding channel, and the
corresponding channel area in the user interface will light up
Turn On/Off Channel Output
Press the front panel CH1 On/Off or CH2 On/Off button to turn the output of the
corresponding channel on/off. When the output is turned on, the backlight of the
button lights up.
Channel Copy
(1) Press CH1⇌CH2 on front panel to display copy menu.
(2) Select CH2 to CH1 softkey or CH1 to CH2 softkey to copy the channel.
Waveform Setting
Sine, square, ramp, pulse, noise, arbitrary or harmonic waves can be set and output.
Press the waveform selection button on the instrument front panel: sine
square
, and enter the corresponding waveform setting interface. The waveform is
, ramp , pulse , noise , arbitrary wave , harmonic
,
different and the parameters that can be set are different.
Note: The following setting waveform uses CH1 channel as an example. If you need
to set CH2 channel, please refer to CH1 channel specific operation.
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4.Panel Operation
Output Sine Wave
Press , the screen displays the user interface of the sine wave. By operating the
sine wave menu on the right side of the screen, you can set the output waveform
parameters of the sine wave.
The sine wave menu includes: frequency/period, amplitude/high level, offset/low
level, and start phase. The menu can be operated by the menu selection button on
the right.
Figure 4-1: Sine wave user interface
Set the frequency/period
Press CH1, all currently selected CH1 menu items are highlighted
Press the Frequency/Period soft key, the currently selected menu item is
highlighted, and the corresponding parameter item is displayed in parameter 1.
Press the Frequency/Period softkey again to switch the frequency and period.
There are two ways to change the selected parameter value:
Turn the knob to increase or decrease the value at the cursor. Press the /
arrow key to move the cursor left or right.
Press a number key on the numeric keypad directly, the screen will pop out the
data input box, input the desired value. Press the X soft key to delete the last
digit, press the ← soft key to cancel the input, and press the Enter soft key to
indicate the default unit input. Press the MHz, kHz, Hz, mHz, mHz soft keys to
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4.Panel Operation
select the unit of the parameter. Press the Cancel softkey to cancel the current
input parameter value.
Figure 4-2: Use the numeric keypad to set the frequency
Set the amplitude
Press the Amplitude/High Level softkey to confirm whether the Amplitude menu
item is highlighted; if not, press the Ampl/High button to switch to Amplitude. In
parameter 2 of Figure 5-1, the parameter value of the amplitude appears as a
blinking cursor. Use the knob or numeric keypad to set the desired value.
Set the offset
Press the Offset/Low Level softkey to confirm whether the Offset menu item is
highlighted; if not, press the Offset/Low level key to switch to Offset. In parameter 3
of Figure 5-1, the parameter value of the offset appears as a blinking cursor. Use the
knob or numeric keypad to set the desired value.
Set the high level
Press the Amplitude/High level button to confirm whether the “High level” menu
item is highlighted; if not, press the Ampl/High level button to switch to “High level”.
In parameter 2 of Figure 5-1, a high-level parameter value appears as a blinking
cursor. Use the knob or numeric keypad to set the desired value.
Set the low level
Press the Off/Low level button to confirm whether the “Low level” menu item is
highlighted; if not, press the Offset/Low level button to switch to “Low level”. In
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4.Panel Operation
parameter 3 of Figure 5-1, a low-level parameter value appears as a blinking cursor.
Use the knob or numeric keypad to set the desired value.
Set the start phase
Press the Start Phase softkey to confirm whether the Start Phase menu item is
highlighted; if not, press the Start Phase key. In parameter 4 of Figure 5-1, the
parameter value of the starting phase appears as a blinking cursor. Use the knob or
numeric keypad to set the desired value
Output Square Wave
Press , the screen displays the square wave user interface. By operating the
square wave menu on the right side of the screen, you can set the square wave
output waveform parameters.
The square wave menu includes: frequency / period, amplitude / high level, offset /
low level, starting phase.
For the setting frequency/period, amplitude/high level, offset/low level, and starting
phase, please refer to Output Sine Wave on page 10.
Figure 4-3: Square wave user interface
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4.Panel Operation
Glossary
Symmetry: Sets the percentage of the period during which the ramp waveform is
rising.
Output Ramp Wave
Press , the screen displays the user interface of the ramp wave. By operating
the ramp menu on the right side of the screen, you can set the output waveform
parameters of the ramp wave.
The ramp menu includes: frequency/period, amplitude/high level, offset/low level,
symmetry.
For the setting frequency/period, amplitude/high level, offset/low level, and starting
phase, please refer to Output Sine Wave on page 10.
Figure 4-4: Ramp wave user interface
Set the symmetry
(1) Press the Symmetry softkey to select the Symmetry menu item. Figure 5-6
Parameter 1 shows the current value of the symmetry;
(2) Use the knob to change directly, the value in parameter 1 of Figure 5-6; Or
use the numeric keypad to enter the value, press the % or Enter key to
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4.Panel Operation
display the symmetrical value of the input, press the X soft key to delete the
last digit, press the ← soft key to cancel the input, and press the Enter
softkey to indicate the default input.
Figure 4-5: Set the symmetry of ramp wave
Output Pulse Wave
Press , the screen displays the user interface of the pulse wave. By operating
the pulse wave menu on the right side of the screen, the output waveform
parameters of the pulse wave can be set.
The pulse wave menu includes: frequency/period, amplitude/high level, offset/low
level, start phase, pulse width/duty cycle, rise time/fall time.
For the setting frequency/period, amplitude/high level, offset/low level, and starting
phase, please refer to Output Sine Wave on page 10.
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4.Panel Operation
Figure 4-6: Pulse wave user interface
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4.Panel Operation
Glossary
Pulse Width
is an abbreviation for pulse width and is divided into positive pulse width and
The negative pulse width is the time interval from 50% of the falling edge to 50% of
The pulse width is determined by the period and duty cycle of the signal. The
In a series of ideal pulse sequences (such as a square wave), the ratio of the duration
50% threshold of the
ng edge of the pulse to the 50% threshold of the amplitude of
The settable range of pulse width is limited by the "minimum pulse width" and
The pulse duty cycle is defined as the pulse width as a percentage of the pulse
The pulse duty cycle is associated with the pulse width, and modifying one of the
her parameter. The pulse duty cycle
100%
PW
negative pulse width.
The positive pulse width is the time interval from 50% of the rising edge to 50% of
the adjacent falling edge.
the adjacent rising edge.
calculation formula is pulse width = period * duty cycle.
Duty Cycle
of the positive pulse to the total pulse period.
Pulse/Duty Cycle
The pulse width is defined as the time interval from the
amplitude of the risi
the next falling edge, as shown in the following figure.
"pulse period"
Pulse width ≥ minimum pulse width
Pulse width ≤ pulse period - minimum pulse width
period.
parameters will automatically modify the ot
is limited by the "minimum pulse width" and "pulse period".
Pulse duty cycle ≥ minimum pulse width ÷ pulse period × 100%
Pulse duty cycle ≤ (1 - 2 × minimum pulse width ÷ pulse period) ×
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4.Panel Operation
Set the pulse width/duty cycle
Press the Pulse Width/Duty Cycle softkey to select the Pulse Width menu item. As
shown in Figure 5-7, parameter 1 displays the current value of the pulse width. Press
the Pulse Width/Duty Cycle button to display the duty cycle.
Set the pulse width parameter value, use the knob to directly change the value of
the pulse width in parameter 1 of Figure 5-7; or use the numeric keypad to enter the
value, then select the desired unit from the right menu, press the desired unit (ks, s,
ms, us, ns) or Enter the value; press the X soft key to delete the last digit, press the
← soft key to cancel the input, and press the Enter soft key to indicate the default
input.
Set the duty cycle parameter value, use the knob to directly change the value of the
graph duty cycle; or use the numeric keypad to enter the value, then press % or
Enter from the right menu to enter the demand value; press the X soft key to delete
the last one. Bit, press the ← soft key to cancel the input, press the Enter soft key
to indicate the default input.
Figure 4-7: Set the pulse width
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4.Panel Operation
Set the rising/falling time
Press the rise time / fall time soft key to select the "rise time / fall time" menu item,
as shown in Figure 5-6, parameter 6 shows the current value of the rise/fall time;
press the rise time / fall time key to switch between the current display. Parameter
value.
Set the rise time/fall time parameter value Use the knob or use the numeric keypad
to enter the value, then select the desired unit from the right menu, press the
desired unit (ks, s, ms, us, ns) or Enter the value; press the X soft key to delete the
last digit, press the ← soft key to cancel the input, press the Enter softkey to
indicate the default input.
Output Noise Wave
The noise wave output by the system is white noise. Press , the screen displays
the user interface of the noise wave. By operating the noise wave menu on the right
side of the screen, the output waveform parameters of the noise wave can be set.
The noise wave has no frequency and periodic parameters, and the bandwidth is 120
MHz of Gaussian noise.
The menu of noise waves includes: amplitude / high level, offset / low level.
For the setting of amplitude/high level, offset/low level, please refer to Output Sine
Wave on page 10.
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4.Panel Operation
Figure 4-8: noise wave user interface
Output Arbitrary Wave
Press , the screen displays the user interface of the arbitrary wave. By
operating the arbitrary wave menu on the right side of the screen, the output
waveform parameters of the arbitrary wave can be set.
Arbitrary wave menus include: frequency/period, amplitude/high level, offset/low
level, start phase, built-in waveform.
For the setting frequency/period, amplitude/high level, offset/low level, and starting
phase, please refer to Output Sine Wave on page 10.
Arbitrary waves include two kinds of arbitrary waveforms: system built-in waveforms
and user-edited waveforms.
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