Tenma 72-14120 Скачать руководство пользователя страница 84

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Check the shape of QAM modulation waveform through oscilloscope, which is shown in the figure below:

Figure 4- 98 Observe QAM waveform with oscilloscope

4.1.11

Sum Modulation

（

SUM

）

In SUM, the modulated waveform generally is composed of carrier wave and modulation wave. The output waveform is

obtained by the sum of product of carrier amplitude and modulation factor and product of amplitude of modulation wave

and modulation factor. The modulation mode of the two channels is mutually independent. You can configure identical or

different modulation mode for channels 1 and 2.

Select SUM

Press MOD, Type and SUM in sequence to use SUM function (if “Type” is not highlighted, press the soft key Type to

select). After SUM function is used, the function/arbitrary waveform generator will output modulated waveform with the

current modulation waveform and carrier wave.

Содержание 72-14120

Страница 1: ...Function Generator Model 72 14120 72 14122 and 72 14126 ...

Страница 2: ...t Sawtooth Wave 19 3 1 8 Set Noise Wave 20 3 2 SYNC Output 21 3 3 Frequency Measurement 22 3 4 Use Built in Help System 22 Chapter 4 Advanced Applications 23 4 1 Output Modulation Waveform 23 4 1 1 Amplitude Modulation AM 23 4 1 2 Frequency Modulation FM 31 4 1 3 Phase Modulation PM 38 4 1 4 Amplitude Shift Keying ASK 45 4 1 5 Frequency Shift Keying FSK 51 4 1 6 Phase Shift Keying PSK 57 4 1 7 Bin...

Страница 3: ... point Output Play Mode 115 4 4 3 Select Arbitrary Wave 116 4 4 4 Create and Edit Arbitrary Waveform 120 4 5 Output Digital Protocol Coding 120 4 5 1 Description of Interface Front Panel 121 4 5 2 UART Protocol 122 4 5 3 I2C Protocol 130 4 5 4 SPI Protocol 137 4 6 Function of Digital Arbitrary Wave 142 Chapter 5 Fault Handling 147 5 1 No Display on Screen Blank Screen 147 5 2 No Waveform Output 14...

Страница 4: ...t and other properties Terms on the product The following terms may appear on the product Danger indicate that you may be immediately harmed when reading this sign Warning indicate that you may not be immediately harmed when reading this sign Caution indicate that the product or other properties may be damaged Symbols on the product The following symbols may appear on the product AC Measuring grou...

Страница 5: ...abilities or lack of experience or knowledge They should be given supervision and instruction in the use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the appliance There are no user serviceable parts in this product Refer servicing to qualified personnel In order to prevent fire or electric shock please pay attention t...

Страница 6: ...0MHz 120MHz 80MHz full band resolution of 1μHz Pulse waveform of 50MHz or 40MHz adjustable time of rising falling and duty ratio Sampling rate of 500MSa s and vertical resolution of 16bit 6 bit high precision frequency meter compatible with TTL level signal Dual channel of standard configuration and other performance and independent output mode of channel Arbitrary wave storage of 8 32M points 7GB...

Страница 7: ...e held for about 1s to turn off the instrument The backlight of the key and screen are simultaneously off after turning off the instrument 2 USB interface This instrument supports U disks of FAT 16 and FAT32 with maximum capacity of 32G USB interface can be used to read any waveform data files in U disk store or read current files of the instrument The system program can be upgraded through the US...

Страница 8: ...led by submenu CH Copy under UTILITY In the submenu of CH Copy menu 0 1 2 is to copy CH1 settings to CH2 1 2 1 is to copy CH2 settings to CH1 and 2 1 2 is to exchange settings of CH1 and CH2 7 CH2 control terminal Fast switch the current channel on the screen illumination of CH2 indicator shows it is the current channel and the parameter list shows information about channel 1 set waveform paramete...

Страница 9: ...the right of the screen When soft keys of some functions are too numerous to be displayed on one page they will be arranged on more than one page Press this key to switch between multiple pages 17 Soft function key menu Accordingly select or check tags on the right of function interface through identification of soft keys and set parameters with numeric keyboard multi functional control or directi...

Страница 10: ...SK FSK PSK or OSK signal source is external input modulation signal is received through the external digital modulation interface TTL level The corresponding output amplitude frequency and phase are determined by signal level of external digital modulation interface If the trigger source of frequency sweep or pulse train is external the digital modulation interface will receive a TTL pulse with de...

Страница 11: ...erface to initialise control of the instrument by computer 8 LAN port LAN port can be used to connect the instrument to a network 9 Main power switch Main power switch to energize the instrument If turned OFF the front on off button is inoperable 10 AC power input socket AC power specification supported by this function arbitrary waveform generator is 100 240V 45 440Hz 11 Crate lock Open the crate...

Страница 12: ...e output 50Ω means 50Ω output and effective waveform BASE is basic waveform MOD is modulation mode SWEEP is frequency sweep mode and BURST is pulse train will be displayed on the right of the tag Soft key display identify functions of soft keys menu and operation soft keys Highlighted display highlighted display means that colour of the channel is displayed in the middle of the display and typefac...

Страница 13: ...changing frequency into 2 5MHz are as follows 1 Press function key F1 and the required soft key border outline illuminates to match the colour of the corresponding channel and Freq character is highlighted and editable Period tag is greyed out Pressing function key F1 again changes to the set waveform period when Freq character is greyed out and Period character is highlighted and now the waveform...

Страница 14: ...ple press soft key corresponding to MHz 4 Use multi functional control and direction key for parameter setting In default state use the multi functional control to switch between options of the function menu When option is chosen press the multi functional control to select the parameter which is highlighted in red or blue depending on the channel Rotate the multi functional control to adjust the ...

Страница 15: ...onding channel and character Amp is highlighted white and editable and High is greyed out Pressing function key F2 again switches between the unit options Vpp Vrms and dBm 2 Input required amplitude value 300 with numeric keyboard Figure 3 3 Set amplitude 3 Select required unit Press soft key of corresponding unit The waveform generator outputs waveform with the displayed amplitude when you select...

Страница 16: ...ind that the waveform of parameter described with amplitude and DC offset has been described with high level maximum value and low level minimum value Such method for setting signal limit is very convenient for digital application 2 Input required DC offset value 150mV with numeric keyboard Figure 3 4 Set offset voltage 3 Select required unit Press soft key of corresponding unit The waveform gener...

Страница 17: ...tion 10ns The specific steps for setting square wave with frequency of 1kHz amplitude of 1 5Vpp DC offset of 0V and duty ratio of 70 are as follows Press Square Freq Amp and Duty to set corresponding functions Press the corresponding soft key to edit parameters then input the required value and finally select the unit Select corresponding value to set the duty ratio Figure 3 5 Set duty ratio Note ...

Страница 18: ...ns of 25 rising edge time of 200µs and falling edge time of 200µs are as follows Press Pulse Freq Amp Duty Rise and Fall if tag is not highlighted press corresponding soft function key to select and press soft key Freq twice to switch between frequency and period Input the required value and then select the unit When inputting value of duty ratio input 25 and press to finish input To set falling e...

Страница 19: ... 1 Press DC followed by Offset to enter the setting 2 Input the required number 3 with numeric keyboard Figure 3 7 Set DC voltage 3 Select required unit Press soft key of corresponding unit The waveform generator outputs waveform with the displayed DC offset when you select the unit and switch output on Press V Volts in this example Note this parameter can also be set with multi functional control...

Страница 20: ...nd degree of symmetry of 50 are as follows Press Ramp Freq Amp Offset and Symmetry in sequence Press the corresponding soft key to set the parameter input the required value and then select the unit There will be tag 50 on the right of the screen when inputting the degree of symmetry Press the corresponding soft key to input the value Enter 50 using the numeric keypad and then press to finish sele...

Страница 21: ...anged Only the amplitude and DC offset of the noise wave can be changed The specific steps for setting quasi Gaussain noise with amplitude of 300mVpp and DC offset of 1V are as follows Press Noise Amp and Offset in sequence to input settings Press the corresponding soft key to set required parameter input the setting value and then select the unit required Figure 3 9 Set noise wave Note this param...

Страница 22: ... wave with duty ratio of 50 Sync uses carrier waveform as reference in external analog modulation and is square wave with duty ratio of 50 Sync uses external input waveform as reference in external FSK input modulation and is square wave with duty ratio of 50 When internal trigger of frequency sweep starts Sync signal is at low level and at high level at midpoint of frequency sweep Sync signal syn...

Страница 23: ...can also use list of help topics to get guidance about front panel operation 1 Check list of help topics Press HELP on arbitrary interface to check list of help topics available press arbitrary operation key again to view corresponding help information and press HELP again to exit 2 Check help information that displays message In case of exceeding the limit or any invalid configuration function ar...

Страница 24: ...n mode for channels 1 and 2 Select AM Press MOD Type and AM to use AM function if Type is not highlighted press soft key Type to select After AM function is used the function arbitrary waveform generator will output modulated waveform with the current modulation waveform and carrier wave when output is turned on Figure 4 1 Select AM function Select carrier waveform AM carrier waveform can be sine ...

Страница 25: ...th wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz To set carrier frequency please use multi functional control and direction key or press corresponding keys input the required value and select the unit Select modulation source The function arbitrary waveform generator can select internal or external modulation source A...

Страница 26: ...nternal modulation source After you use AM function you can see that frequency of modulation wave is 100Hz by default You can change it with the multi functional control and direction key on AM interface or by pressing Freq Modulation frequency range is 2mHz 200kHz 2 External source In case of external modulation source modulation wave and frequency will be hidden in parameter list when an externa...

Страница 27: ...nal Modulation In connector on the back panel For example if modulation depth in parameter list is set to be 100 AM output amplitude is the maximum when external modulation signal is 5V and the minimum when external modulation signal is 5V Comprehensive example First set the instrument to run in amplitude modulation AM mode and then set an internal sine wave of 200Hz as modulation signal and a squ...

Страница 28: ...orresponding soft key input the required value and select the unit Figure 4 6 Set frequency of modulation source 3 Set carrier signal parameters Select type of basic waveform in modulation mode Press Square to select the carrier signal as a square wave ...

Страница 29: ...an set with multi functional control and direction key or press corresponding soft keys of function again Figure 4 8 Select carrier duty ratio To set some parameters press the corresponding soft key input the required value and select the unit ...

Страница 30: ...terface below to set modulation depth after setting the carrier parameters Figure 4 10 Select modulation depth You can set with multi functional control and direction key You can also press the soft key Depth again input number 80 through numeric keyboard and press soft key to set the modulation depth ...

Страница 31: ... the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON on the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 12 Use channel output ...

Страница 32: ...of the carrier wave will vary with amplitude of the modulation wave The modulation mode of the two channels is mutually independent You can configure identical or different modulation modes for channels 1 and 2 Select FM Press MOD Type and FM in turn to use the FM function press soft key Type to select After FM function is used the function arbitrary waveform generator will output modulated wavefo...

Страница 33: ... 72 14126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz To set carrier frequency please use multi functional control and direction key or press Freq input the required value and select the unit after selecting the carrie...

Страница 34: ...tion input terminal Modulation In connector on the back panel Output frequency of FM is more than carrier frequency at positive signal level and less than the latter at negative signal level Lower external signal level generates less deviation For example if frequency deviation in the parameter list is set to be 1kHz output frequency of FM is 1kHz more than the current carrier frequency when exter...

Страница 35: ...wable maximum carrier frequency If the frequency deviation is invalid the function arbitrary waveform generator will automatically limit the deviation to the allowable maximum carrier frequency Comprehensive example First make the instrument run in frequency modulation FM mode and then set an internal square wave of 2kHz as modulation signal and a sine wave with frequency of 10kHz and amplitude of...

Страница 36: ... corresponding soft key input the required value and select the unit Figure 4 19 Set frequency of modulation source 3 Set carrier signal parameters Press Sine to select carrier signal as a sine wave if previously set to another mode Default carrier signal is a sine wave ...

Страница 37: ...functional control and direction key Press corresponding soft key input the required value and select the unit Figure 4 21 Set carrier amplitude 4 Set frequency deviation Press MOD to return to the interface below to set the frequency deviation after setting carrier parameters ...

Страница 38: ...ic keyboard and press soft key kHz to set the frequency deviation Figure 4 23 Set frequency deviation 5 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON on the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on ...

Страница 39: ...se of the carrier wave will vary with amplitude of the modulation wave The modulation mode of the two channels is mutually independent You can configure identical or different modulation modes for channels 1 and 2 Select PM Press MOD Type and PM in sequence to use the PM function if Type is not highlighted press soft key Type to select After PM function is used the function arbitrary waveform gene...

Страница 40: ...and is sine wave by default After PM is selected press the key of basic waveform setting to enter the interface for setting carrier wave Figure 4 27 Select carrier waveform Set carrier frequency Carrier frequency range varies with carrier waveform The default frequency of all carrier waves is 1kHz See following table for frequency range of carrier wave ...

Страница 41: ...ion source is internal by default You can change it with multi functional control on interface for using phase modulation or by pressing MOD and Source in turn Figure 4 28 Select modulation source Internal source In case of internal modulation source modulation wave can be sine wave square wave sawtooth wave and arbitrary wave and is sine wave by default After you use PM function the modulation wa...

Страница 42: ...ing Freq Modulation frequency range is 2mHz 200kHz When using an external modulation source modulation wave and frequency will not show in parameter list when an external waveform will be used to modulate carrier waveform The frequency range of modulation signal of external input is 100Hz 20kHz Set phase deviation Phase deviation is the change in phase of the waveform subject to PM relative to car...

Страница 43: ...ace for using PM function when the screen shown below will display Press the corresponding soft key input the required value and select the unit Figure 4 30 Set modulation parameters 2 Set carrier signal parameters Press Sine to select carrier signal as a sine wave if previously set to another mode Default carrier signal is a sine wave when PM modulation signal is on Figure 4 31 Set carrier freque...

Страница 44: ...gain when the interface below will display To set some parameter press corresponding soft key input the required value and select the unit Figure 4 32 Set carrier amplitude 3 Set phase deviation Press MOD to return to the interface below to set phase deviation after setting carrier parameters Figure 4 33 Set modulation parameters ...

Страница 45: ...ft key º to set the phase deviation Figure 4 34 Set phase deviation 4 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 35 Use channel output ...

Страница 46: ...ls with different amplitude according to logic of modulation signal The modulation mode of the two channels is mutually independent You can configure identical or different modulation modes for channels 1 and 2 Select ASK modulation Press MOD Type and ASK in sequence to use ASK function if Type is not highlighted press soft key Type to select After ASK function is used the function arbitrary wavef...

Страница 47: ...default frequency of all carrier waves is 1kHz See the table below for frequency range of carrier wave Table 4 4 Carrier waveform Frequency 72 14120 72 14122 72 14126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz To set ...

Страница 48: ... wave degree of symmetry is 0 10 Arbitrary wave when selecting arbitrary wave as modulation waveform function arbitrary waveform generator limits length of arbitrary wave to 32Mpts by automatic test count 2 External source When using an external modulation source the rate will not show in the parameter list when an external waveform will be used to modulate carrier waveform ASK output amplitude is...

Страница 49: ...y the frequency of this signal can be set This frequency is the rate of ASK amplitude jump Logic signal is configured by the instrument 1 Use ASK function Press MOD Type and ASK in sequence press soft key Type to select to use ASK function Figure 4 40 Select ASK function 2 Set carrier signal parameters 3 Press Sine to select carrier signal as a sine wave if previously set to another mode Default c...

Страница 50: ...ress the corresponding soft keys of function again when the interface below will display To set the parameter press corresponding soft key input the required value and select the unit Figure 4 42 Set carrier amplitude 4 Set ASK rate Press MOD to return to the interface below to set ASK rate after setting carrier parameters ...

Страница 51: ...rough the numeric keyboard and press soft key Hz to set the ASK rate Figure 4 44 Set ASK rate 5 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on ...

Страница 52: ... frequency in frequency shift keying Frequency of carrier signal or hopping signal is output according to logic of modulation signal The modulation mode of the two channels is mutually independent You can configure same or different modulation mode for channel 1 and 2 Select FSK modulation Press Menu Type and FSK in sequence to use the FSK function if Type is not highlighted press soft key Type to...

Страница 53: ... DC and is sine wave by default After FSK modulation is selected press the key of basic waveform setting to select carrier waveform Figure 4 48 Select carrier waveform Set carrier frequency Carrier frequency range varies with carrier waveform The default frequency of all carrier waves is 1kHz See the table below for frequency range of carrier wave ...

Страница 54: ... generator can select either an internal or external modulation source After you use FSK function the modulation source is internal by default You can change it with the multi functional control on the interface for using FSK function or by pressing Source Figure 4 49 Select modulation source 1 Internal source In case of internal modulation source modulation wave can be sine wave square wave sawto...

Страница 55: ...MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz Set FSK rate The frequency between carrier frequency and hopping frequency can be set in case of internal modulation source After you use FSK function you can set FSK rate which is in the range of 2mHz 100kHz and 10...

Страница 56: ...is on You can also set with the multi functional control and direction keys You can also press corresponding soft keys of function again when the interface below will display To set some parameter press corresponding soft key input the required value and select the unit Figure 4 51 Set carrier parameters 2 Set hopping frequency and FSK rate Press MOD to return to the interface below after setting ...

Страница 57: ... interface below will display Press the corresponding soft key input the required value and select the unit Figure 4 53 Set FSK rate 3 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is tur...

Страница 58: ...e shift keying Phase of carrier signal or modulation signal is output according to logic of modulation signal The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 Select PSK modulation Press MOD Type and PSK in sequence to use PSK function if Type is not highlighted press soft key Type to select After PSK func...

Страница 59: ... DC and is sine wave by default After PSK modulation is selected press the key of basic waveform setting to select carrier waveform Figure 4 57 Select carrier waveform Set carrier frequency Carrier frequency range varies with carrier waveform The default frequency of all carrier waves is 1kHz See the table below for frequency range of carrier wave ...

Страница 60: ...ource is internal by default You can change it with multi functional control on the interface for using PSK function or by pressing soft function key Source Figure 4 58 Select modulation source 1 Internal source When using an internal modulation source the modulation wave can be sine wave square wave sawtooth wave and arbitrary wave and is sine wave by default After you use PM function the modulat...

Страница 61: ...on relative to carrier phase The range of PSK modulation phase is 0º 360º 180º by default You can change it with the multi functional control and direction keys on the interface for using PSK function or by pressing Parameter Phase successively Comprehensive example Set the instrument run in PSK mode and then set an internal sine wave of 2kHz and 2Vpp as carrier signal Finally set frequency betwee...

Страница 62: ...ace You can also press the corresponding soft keys of function again when the interface below will display To set some parameter press the corresponding soft key input the required value and select the unit 4 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns ...

Страница 63: ...essing 0 and 1 Phase of carrier signal or modulation signal is output according to logic of modulation signal The modulation mode of the two channels is mutually independent You can configure same or different modulation mode for channel 1 and 2 Select BPSK modulation Press MOD Type and BPSK in sequence to use BPSK function if Type is not highlighted press soft key Type to select After BPSK functi...

Страница 64: ...t DC and is sine wave by default After PSK modulation is selected press the key of basic waveform setting to select carrier waveform Figure 4 65 Select carrier waveform Set carrier frequency Carrier frequency range varies with carrier waveform The default frequency of all carrier waves is 1kHz See the table below for frequency range of carrier wave ...

Страница 65: ...tion source is internal by default You can change it with multi functional control on the interface for using PSK function or by pressing soft function key Source Figure 4 66 Select modulation source 1 Internal source When using an internal modulation source the modulation wave can be sine wave square wave sawtooth wave and arbitrary wave and is sine wave by default After you use PM function the m...

Страница 66: ...ing an internal modulation source After you use BPSK function you can set PN code which is divided into four types PN15 PPN21 01 and 10 You can change it with the multi functional control and direction keys on the interface for using PSK function or by pressing Data Source Set modulation phase Modulation phase is the change in phase of a waveform subject to PSK modulation relative to carrier phase...

Страница 67: ...ction keys You can also press corresponding soft keys of function again when the interface below will display To set the parameters press corresponding soft key input the required value and select the unit Figure 4 68 Set carrier parameters 3 Set BPSK initial phase rate modulation phase and PN code Press MOD to return to the interface below after setting carrier parameters Figure 4 69 Set modulati...

Страница 68: ...eters press corresponding soft key input the required value and select the unit Figure 4 70 Set modulation rate 4 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 71 Us...

Страница 69: ...gnal or modulation signal is output according to logic of modulation signal The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 Select QPSK modulation Press MOD Type and QPSK in sequence to use QPSK function if Type is not highlighted press soft key Type to select After QPSK function is used the function arbi...

Страница 70: ...4126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz To set the carrier frequency use the multi functional control and direction keys or press soft key Freq input the required value and select the unit after selecting carr...

Страница 71: ...The range of QPSK modulation phase is 0º 360º The three default modulation sources are 90º 180º and 270º You can change it with the multi functional control and direction key on the interface for using PSK function or by pressing Phase1 Phase2 and Phase3 Comprehensive example First set the instrument run in QPSK mode and then set an internal sine wave of 2kHz and 2Vpp as carrier signal Finally set...

Страница 72: ...ith the multi functional control and direction keys You can also press the corresponding soft keys of function again when the interface below will display To set some parameter press corresponding soft key input the required value and select the unit Figure 4 77 Set carrier parameters 3 Set QPSK rate modulation phase and PN code Press MOD to return to the interface below after setting carrier para...

Страница 73: ...elow will display To set some parameter press corresponding soft key input the required value and select the unit Figure 4 79 Set QPSK rate 4 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1...

Страница 74: ...rystal oscillator starts oscillation output is stopped when internal crystal oscillator stops oscillation The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 Select OSK modulation Press MOD Type and OSK in sequence to use BPSK function if Type is not highlighted press soft key Type to select After OSK functio...

Страница 75: ...is sine wave Figure 4 83 Select carrier waveform Set carrier frequency The default frequency of carrier wave is 1kHz See the table below for frequency range of carrier wave Table 4 10 Carrier waveform Frequency 72 14120 72 14122 72 14126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz ...

Страница 76: ... phase is determined by logic level on external digital modulation interface FSK Trig connector For example when external input logic is low carrier phase is output when external input logic is high modulation phase is output Set OSK rate The frequency between carrier phase and modulation phase can be set when using an internal modulation source After you use OSK function you can set QPSK rate whi...

Страница 77: ...er signal as a sine wave if previously set to another mode Default carrier signal is a sine wave You can set with the multi functional control and direction keys You can also press the corresponding soft keys of function again when the interface below will display To set the parameters press corresponding soft key input the required value and select the unit Figure 4 86 Set carrier parameters ...

Страница 78: ...rresponding soft keys of function again when the interface below will display To set the parameters press corresponding soft key input the required value and select the unit Figure 4 88 Set modulation rate 4 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns w...

Страница 79: ... QAM In QAM two signals of the same frequency but with phase difference of 90 are used as carrier wave which is subject to amplitude modulation with baseband signal The function arbitrary waveform generator can output seven modulation modes 4QAM 8QAM 16QAM 32QAM 64QAM 128QAM and 256QAM The modulation mode of the two channels is mutually independent You can configure identical or different modulati...

Страница 80: ... select After QAM function is used the function arbitrary waveform generator will output modulated waveform with the current carrier phase 0º by default and not adjustable and modulation phase Figure 4 91 Select QAM function Select carrier waveform QAM carrier waveform is a sine wave Figure 4 92 Select carrier waveform ...

Страница 81: ...M 64QAM 128QAM or 256QAM Comprehensive example First set the instrument to run in QAM mode and then set an internal sine wave of 2kHz and 2Vpp as carrier signal Set rate to be 100Hz and modulation mode to be 64QAM The specific steps are as follows 1 QAM function Press MOD Type and QAM in sequence press soft key Type to select to use QAM function Figure 4 93 Select QAM function 2 Set carrier signal...

Страница 82: ...g carrier parameters Figure 4 95 Set modulation parameters You can set with the multi functional control and direction keys directly on this interface You can also press the corresponding soft keys of function again when the interface below will display To set the parameters press corresponding soft key input the required value and select the unit ...

Страница 83: ...the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 97 Use channel output ...

Страница 84: ...arrier amplitude and modulation factor and product of amplitude of modulation wave and modulation factor The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 Select SUM Press MOD Type and SUM in sequence to use SUM function if Type is not highlighted press the soft key Type to select After SUM function is used...

Страница 85: ...14122 72 14126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz To set carrier frequency please use the multi functional control and direction keys or press the corresponding key input the required value and select the unit...

Страница 86: ...r list when an external waveform will be used to modulate carrier waveform SUM depth is controlled by 5V signal level on external analog modulation input terminal Modulation In connector of back panel For example if modulation depth in parameter list is set to be 100 SUM output amplitude is the maximum when external modulation signal is 5V and the minimum when external modulation signal is 5V Set ...

Страница 87: ... connector on the back panel Comprehensive example First set the instrument to run in SUM mode and then set an internal sine wave of 1kHz as modulation signal and a square wave with frequency of 2kHz amplitude of 200mVpp and duty ratio of 45 as carrier signal Finally set the modulation depth to be 80 The specific steps are as follows 1 Use SUM function Press MOD to use the function and select SUM ...

Страница 88: ...Press Square to select the carrier signal as a square wave Figure 4 103 Set carrier parameters You can set with the multi functional control and direction keys You can also press the corresponding soft keys of function again To set the parameters press the corresponding soft key input the required value and select the unit ...

Страница 89: ...ou can also press soft key Depth again input the number 80 through the numeric keyboard and press soft key to set the modulation depth Figure 4 105 Set modulation depth 5 Use channel output Press CH1 on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating...

Страница 90: ...modulation wave The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 Select PWM Press MOD Type and PWM in sequence to use PWM function if Type is not highlighted it may be necessary to press soft key Type twice to display the next screen of sub tags After PWM function is used the function arbitrary waveform ge...

Страница 91: ... To set carrier duty ratio please use the multi functional control and direction keys in the interface or press soft function key Duty input the required value and select the unit Select modulation source The function arbitrary waveform generator can select internal or external modulation source After you use PWM function the modulation source is internal by default You can change it with the mult...

Страница 92: ...ternal waveform will be used to modulate carrier waveform Duty ratio deviation of PWM is controlled by 5V signal level on the external analog modulation input terminal Modulation In connector on the back panel For example if duty ratio deviation in parameter list is set to be 15 duty ratio of carrier signal pulse wave increases by 15 when external modulation signal is 5V Lower external signal leve...

Страница 93: ... MOD Type and PWM in sequence if Type is not highlighted it may be necessary to press soft key Type twice to display the next screen of sub tags to use PWM function Figure 4 110 Select PWM function 2 Set modulation signal parameters Set with the multi functional control and direction keys after using PWM function You can also press the corresponding soft keys of function on the above interface for...

Страница 94: ...ameters in the interface for using PWM function Figure 4 112 Set carrier parameters You can set with the multi functional control and direction keys You can also press the corresponding soft keys of function again when the interface below will display To set the parameters press the corresponding soft key input the required value and select the unit ...

Страница 95: ...t frequency deviation after setting carrier parameters Figure 4 114 Set modulation parameters You can set with the multi functional control and direction keys You can also press the soft function key Duty again input the number 40 through the numeric keyboard and press soft key to set the duty ratio deviation ...

Страница 96: ...on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 116 Use channel output ...

Страница 97: ...quency in designated frequency sweep time Trigger source can be internal external or manual it can generate frequency sweep output for sine wave square wave sawtooth wave and arbitrary wave except DC The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 4 2 1 Select Frequency Sweep Start frequency sweep Press S...

Страница 98: ... Frequency Starting frequency and stop frequency are the upper limit and lower limit of frequency sweep Function arbitrary waveform generator always sweeps from starting frequency to stop frequency and then returns to starting frequency To set starting or stop frequency press SWEEP to return to interface of frequency sweep mode after setting carrier parameters when you can use multi functional con...

Страница 99: ...cy can vary with frequency sweep waveform See the table below for the frequency range of frequency sweep wave Table 4 13 Carrier waveform Frequency 72 14120 72 14122 72 14126 Sine wave 1μHz 80MHz 1μHz 120MHz 1μHz 160MHz Square wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Sawtooth wave 1μHz 30MHz 1μHz 40MHz 1μHz 50MHz Pulse wave 1μHz 2MHz 1μHz 3MHz 1μHz 4MHz Arbitrary wave 1μHz 30MHz 1μHz 30MHz 1μHz 30MHz...

Страница 100: ...m starting frequency to stop frequency which is 1ms by default and in the range of 1µs 500s To change it you can use the multi functional control and direction keys on the interface for selecting frequency sweep mode or press soft function key Swp Time input number through the numeric keyboard and press the corresponding soft key of unit ...

Страница 101: ...face for selecting frequency sweep mode or press the soft function key Source Figure 4 124 Select trigger source When using an internal trigger the waveform generator will output a continuous frequency sweep the rate of which is determined by frequency sweep time When using an external trigger the waveform generator will accept a hardware trigger that has been connected to the external digital mod...

Страница 102: ...ve with duty ratio of 50 from external digital modulation interface FSK Trig connector when frequency sweep starts Trigger period depends on designated frequency sweep time In manual trigger signal generator outputs a pulse more than 1µs wide from external digital modulation interface FSK Trig connector when frequency sweep starts In external trigger trigger output will be hidden in parameter list...

Страница 103: ...Hz and frequency sweep time to be 2ms The specific steps are as follows Use frequency sweep function Press SWEEP and Type in sequence to display a linear frequency sweep press soft key Type to select to start linear frequency sweep function Figure 4 126 Select SWEEP function Select frequency sweep waveform After linear frequency sweep function is used press Square to select frequency sweep wavefor...

Страница 104: ...form amplitude Set starting stop frequency frequency sweep time trigger source and edge Press SWEEP to return to the interface below after selecting frequency sweep waveform and relevant parameters Figure 4 129 Set frequency sweep parameters You can set with the multi functional control and direction keys You can also press the corresponding soft function keys again when the interface below will d...

Страница 105: ...backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 131 Use channel output Check the shape of frequency sweep waveform through the oscilloscope which is shown in the figure below ...

Страница 106: ...ting and infinite It can generate pulse train for sine wave square wave sawtooth wave pulse wave arbitrary wave except DC and noise only applicable to gating pulse train The modulation mode of the two channels is mutually independent You can configure identical or different modulation mode for channels 1 and 2 4 3 1 Select Burst Start Burst function Press BURST to start function of pulser After pu...

Страница 107: ...he pulse train will be output with designated cycle index and waveform frequency In gating mode when trigger signal is at high level pulse train is output with waveform frequency Note waveform frequency is different with period of pulse train that designates interval between pulse trains only for N cycle mode The default frequency of waveform is 1kHz See the table below for the range Table 4 14 Ca...

Страница 108: ...ng mode Press the soft function keys Type and Gated in sequence on the interface for starting pulse function to enter gating mode In mode of gating pulse train trigger source trigger output trigger edge burst period period of pulse train and recurring number will not be shown in the parameter list As only an external trigger source can be used waveform generator is triggered according to the hardw...

Страница 109: ...n in the parameter list Infinite pulse train amounts to infinite cycle index of waveform The signal generator outputs continuous waveform when receiving trigger signal The trigger source of pulse train can be internal external or manual in this mode To change it you can use the multi functional control and direction keys on the interface for selecting the type of pulse train as shown in the figure...

Страница 110: ...default burst period is 1ms To change it you can use the multi functional control and direction keys or press the soft key Period after selecting type of pulse train as N cycle Burst period period of pulse train waveform period recurring number number of pulse trains The waveform period is reciprocal of waveform frequency mentioned in select pulse train If burst period period of pulse train is too...

Страница 111: ... pulse train 4 3 7 Trigger Output When using an internal or manual trigger source the trigger signal square wave can be output through sync output interface The signal is compatible with TTL level 4 3 8 Trigger Edge Trigger edge can be designated when external digital modulation interface FSK Trig connector is used as input When it is used as input i e internal trigger source rising edge means tha...

Страница 112: ...ction key note if frequency is displayed only frequency can be set which means that conversion between frequency and period cannot be realized If frequency is displayed period of 2ms is corresponding to frequency of 500Hz They are reciprocal i e T 1 f You can also press the soft function key Freq again press the soft key Freq twice for conversion between frequency and period in parameter list when...

Страница 113: ... selecting waveform of pulse train and relevant parameters Figure 4 142 Set pulse train parameters You can set with the multi functional control and direction keys You can also press the corresponding soft keys of parameters again when the interface below will display To set some parameter press the corresponding soft key input the required value and select the unit ...

Страница 114: ...on the front panel to turn on output of channel 1 The backlight of CH1 illuminates after channel output is turned on ON to the right of CH1 information tag turns white and OFF is greyed out indicating that the output of channel 1 is turned on Figure 4 144 Use channel output ...

Страница 115: ...e storage See Table 4 1 list of built in arbitrary wave for the name of waveform The instrument creates and edits arbitrary waveform through high level computer software and reads arbitrary waveform data file stored in U disk through the USB interface of front panel 4 4 1 Use Arbitrary Wave Function Press Arb to use arbitrary wave function After the function is used the function arbitrary waveform...

Страница 116: ...ts waveform points one by one with this frequency Point by point output mode can prevent loss of important waveform point The default is No In such a case arbitrary waveform is output with fixed length 16k points and frequency in parameter list through automatic interpolation of software or test count To change it you can use the multi functional control and direction keys on the interface for usi...

Страница 117: ... Description Common 15 types DC DC voltage AbsSine Absolute value of sine AbsSineHalf Absolute value of half sine AmpALT Gain oscillation curve AttALT Damped oscillation curve GaussPulse Gaussian pulse Gaussian monopulse Gaussian monopulse signal NegRamp Inverted triangle NPulse Negative pulse PPulse Positive pulse SineTra Sine Tra waveform SineVer Sine Ver waveform StairDn Stair down StairUD Stai...

Страница 118: ... Dirichlet Dirichlet function Erf Error function Erfc Complementary error function ErfcInv Inverse complementary error function ErfInv Inverse error function ExpFall Exponential falling function ExpRise Exponential rising function Gammaln Natural logarithm of Gamma function Gauss Gaussian distribution or normal distribution HaverSine Haversine function Laguerre Quartic Laguerre polynomial Laplace ...

Страница 119: ...wing with oscillation ISO16750 2 Starting1 Automobile voltage waveform caused by start up1 ISO16750 2 Starting2 Automobile voltage waveform caused by start up 2 ISO16750 2 Starting3 Automobile voltage waveform caused by start up 3 ISO16750 2 Starting4 Automobile voltage waveform caused by start up 4 ISO16750 2 VR Sectional drawing of automobile working voltage in resetting ISO7637 2 TP1 Transient ...

Страница 120: ...quare root function Tan Tangent function TanH Hyperbolic tangent Inverse Trigonome 17 types ACos Arc cosine function ACosH Arc hyperbolic cosine function ACotCon Concave arc cotangent function ACotPro Convex arc cotangent function ACotHCon Concave arc hyperbolic cosine function ACotHPro Convex arc hyperbolic cosine function ACscCon Concave arc cosecant function ACscPro Convex arc cosecant function...

Страница 121: ...lex Gaussian function Complex Morlet Complex Morlet wavelet Complex Shannon Complex Shannon function Mexican hat Mexican hat wavelet Meyer Meyer wavelet Morlet Morlet wavelet 4 4 4 Create and Edit Arbitrary Waveform The function arbitrary waveform generator creates and edits complicated arbitrary waveforms of any amplitude and shape through powerful high level computer software Please see Operatio...

Страница 122: ... below for correspondence of signal Table 4 16 Pin name Function description GND Ground pin D15 NC D14 NC D13 NC D12 RS232_TXD serial data sending end D11 NC D10 SPI_CS SPI enable D9 SPI_SDO SPI data sending end D8 SPI_CLK SPI clock D7 NC D6 NC D5 I2C_SDA SPI data terminal D4 I2C_SCL SPI clock terminal D3 NC D2 NC D1 NC D0 NC Digital interface Connecting plug Tap 1 Tap 2 ...

Страница 123: ... to select After UART function is used the function arbitrary waveform generator will output protocol signal with the current setting Figure 4 148 Select UART function Select Baud rate The Baud rate of UART can be 110 300 1200 4800 9600 19200 38400 56700 115200 230400 460800 921600 and Clock speed After UART is selected the default Baud rate is 9600 To set Baud rate please use the multi functional...

Страница 124: ...unction key Bit Type to select the required setting Figure 4 150 Set bit Set data sent The function arbitrary waveform generator can set protocol data coding to be sent After you use UART function the data is empty by default You can set with the multi functional control on the interface for using protocol function or by pressing Data The data can be sent with multiple numerical systems including ...

Страница 125: ...ic string should be divided into digital sections not more than 255 when setting value sent Segments are separated by a Space Press Clear to clear input errors and press A a to switch between upper and lower case Press Ok after setting is finished See the figure below Figure 4 152 Set data sent ...

Страница 126: ...e Press soft function key SendMode to adjust to AUTO to set automatic sending mode of the instrument You can set the send time Press soft function key Send Time to set the send time using the numeric keys Figure 4 153 Set automatic sending 2 Manual sending mode Press soft function key SendMode to adjust to Manual to set to manual sending mode of the instrument Press soft function key Send the inst...

Страница 127: ...Bit to set optional stop bit width which can be 1 or 2 and is 1 set by default Figure 4 155 Set stop bit Set check bit Check mode can be set in UART protocol Press the soft function key Parity to set different check mode which can be no odd and even and is set as no by default Figure 4 156 Set check bit ...

Страница 128: ... 1 Use UART function Press DIGITAL Type and Uart in sequence press soft key Type to select to use UART function Figure 4 157 Select UART function 2 Set Baud rate to be 4800 Press soft function key Baud Rate to set the Baud rate in UART mode You can set with the multi functional control and direction keys You can also press the corresponding soft function keys again when the interface below will di...

Страница 129: ... required setting The bit number shown is 8 in this example Figure 4 159 Select bit 4 Set data sent Press the soft function key Data for data setting in UART mode You can set with the multi functional control and direction keys You can also press the corresponding soft function keys again when the interface below will display Select accordingly Figure 4 160 Set data sent ...

Страница 130: ...AUTO in UART mode Press soft function key Send Time to set the sending interval to be 2ms set using the numeric keys Figure 4 161 Set send time 6 Set stop bit Press the soft function key Stop Bit to set the sending mode and set the stop bit to be 1 in UART mode Figure 4 162 Set stop bit ...

Страница 131: ...ate protocol signal for parameters and output through the digital interface on the front panel in I2C protocol mode Select I2C Press DIGITAL Type and I2C in sequence to use UART function if Type is not highlighted press soft key Type to select After I2C function is used the function arbitrary waveform generator will output protocol signal with the current setting Figure 4 164 Select I2C function ...

Страница 132: ...y Clock and using the numeric keys in the range of 10kHz 1MHz Figure 4 165 Set clock Set address information Different address information can be set as required 7 bit or 10 bit address can be selected in I2C mode Press Page Up Down on the menu and press Addr Format on page 2 to switch between 7 bit address and 10 bit address The default is 7 bit address Figure 4 166 Set address size ...

Страница 133: ...for using protocol function or by pressing Data and using the numeric keys The data can be sent with multiple numerical systems including decimal system hexadecimal system and character which is shown in the figure below Figure 4 168 Set data sent Multibyte sending can be set The number of bytes is 8 The numeric string should be divided into digital sections not more than 255 when setting value se...

Страница 134: ... Press soft function key SendMode and adjust to AUTO to set automatic sending mode of the instrument You can set the send time Press soft function key Send Time to set send time using the numeric keys Figure 4 169 Set automatic sending 2 Manual sending mode Press the soft function key SendMode and adjust to Manual to set manual sending mode of the instrument Press the soft function key Send the in...

Страница 135: ...terval to be 5ms The specific steps are as follows 1 Use I2C function Press DIGITAL Type and I2C in sequence press soft key Type to select to use I2C function Figure 4 170 Select UART function 2 65 Set 10 bit address of 65 Press the soft function key Addr Format to set address bit width in I2C mode Press this key to switch between 7 bit and 10 bit address Set the address to be 10 bit Figure 4 171 ...

Страница 136: ...et address value to be 65 Figure 4 172 Set address value 3 Set Clock Press the soft function key Clock for data setting in I2C mode You can set with multi functional control and direction key You can also press the corresponding soft function keys again and set corresponding data to be 500 with numeric keys Figure 4 173 Set clock ...

Страница 137: ... You can also press the corresponding soft function keys again and set corresponding data with numeric keys Figure 4 174 Set data sent 5 Set send time Press the soft function key Send Mode to set sending mode to be AUTO in I2C mode Press the soft function key Send Time to set sending interval to be 5ms with numeric key Figure 4 175 Set send time ...

Страница 138: ...y to use SPI function if Type is not highlighted press soft key Type to select After SPI function is used the function arbitrary waveform generator will output protocol signal with the current SPI mode Figure 4 176 Select SPI function Set SPI Clock The sending clock of the SPI can be set as required by users Press the function key Clock in SPI mode to set sending clock with the numeric keys in the...

Страница 139: ...uding decimal system hexadecimal system and character which is shown in the figure below Figure 4 178 Set data sent Multibyte sending can be set The number of bytes is 8 The numeric string should be divided into digital sections not more than 255 when setting value sent Segments are separated with Space Press Clear to clear errors and press A a to switch between upper and lower case Press Ok after...

Страница 140: ...he soft function key SendMode to adjust to AUTO to set automatic sending mode of the instrument You can set the send time Press the soft function key Send Time to set the send time using the numeric keys Figure 4 180 Set automatic sending 2 Manual sending mode Press the soft function key SendMode to adjust to Manual to set manual sending mode of the instrument Press the soft function key Send the ...

Страница 141: ...ows 1 Use SPI function Press DIGITAL Type and SPI in sequence press soft key Type to select to use SPI function Figure 4 182 Select SPI function 2 Set Clock Press the soft function key Clock for data setting in SPI mode You can set with the multi functional control and direction keys You can also press the corresponding soft function keys again and set corresponding data to be 15kHz with numeric k...

Страница 142: ...an also press the corresponding soft function keys again to set corresponding data with numeric key Figure 4 184 Set data sent 4 Set send time Press soft function key Send Mode to set sending mode to be AUTO in SPI mode Press the soft function key Send Time to set the sending interval to be 5ms You can set with numeric keys Figure 4 185 Set send time ...

Страница 143: ...f digital arbitrary wave if Type is not highlighted press soft key Type to select After function of digital arbitrary wave is used the function arbitrary waveform generator will output signal of digital arbitrary wave with the current setting Figure 4 186 Select function of digital arbitrary wave Set Clock The sending clock of digital arbitrary wave can be set as required by users Press function k...

Страница 144: ...ing decimal system hexadecimal system and character which is shown in the figure below Figure 4 188 Set data sent Multibyte sending can be set The number of bytes is 8 The numeric string should be divided into digital sections not more than 255 when setting value sent Segments are separated by Space Press Clear to erase incorrect input and press A a to switch between upper and lower case Press Ok ...

Страница 145: ...users press the send key 1 Automatic sending mode Press the soft function key SendMode to adjust to AUTO to set automatic sending mode of the instrument Figure 4 190 Set automatic sending 2 Manual sending mode Press the soft function key SendMode and set to Manual to set manual sending mode of the instrument Press the soft function key Send the instrument will output the set waveform Figure 4 191 ...

Страница 146: ... DArb in sequence press the soft key Type to select to use function of digital arbitrary wave Figure 4 192 Select function of digital arbitrary wave 2 Set Clock Press the soft function key Clock for data setting in mode of digital arbitrary wave You can set with the multi functional control and direction key You can also press the corresponding soft function keys again and set the corresponding da...

Страница 147: ...with the multi functional control and direction keys You can also press the corresponding soft function keys again and set corresponding data with numeric keys Figure 4 194 Set data sent 4 Set sending mode Press the soft function key Send Mode in DArb mode to set sending mode to be AUTO Figure 4 195 Set sending mode ...

Страница 148: ...position 4 Check that the power switch on front panel is in the ON position 5 If the product still cannot be used normally please contact the supplier you purchased it from 5 2 No Waveform Output Setting is correct but no waveform is output 1 Check whether the BNC cable and channel output terminal are connected correctly 2 Check that either CH1 or CH2 is turned on 3 If the product still cannot be ...

Страница 149: ...r 6 Service and Support 6 1 Program Upgrade of Product Users may upgrade the current firmware available from the support department or website of UNI T to ensure that the latest revision released by UNI T is used ...

Страница 150: ...t 5V Lower amplitude limit 5V Fundamental wave Frequency 1kHz Amplitude 100mVpp DC offset 0mV Initial phase 0 Duty ratio of square wave 50 Degree of symmetry of sawtooth wave 100 Duty ratio of pulse wave 50 Rising edge of pulse wave 1µs Falling edge of pulse wave 1µs Arbitrary wave Built in arbitrary wave Sinc Play mode No AM modulation Modulation source Internal Modulation wave Sine wave Modulati...

Страница 151: ...e wave Modulation frequency 100Hz Phase deviation 180 PWM modulation Modulation source Internal Modulation wave Pulse wave Modulation frequency 100Hz Deviation of duty ratio 20 ASK modulation Modulation source Internal ASK rate 100Hz FSK modulation Modulation source Internal FSK rate 100Hz Hopping frequency 10kHz PSK modulation Modulation source Internal PSK rate 100Hz PSK phase 180 ...

Страница 152: ...ine Modulation source Internal Coding mode PN15 QPSK rate 10kHz Phase 0 Phase 1 90 Phase 2 180 OSK modulation Modulation source Internal Oscillation time 1ms OSK rate 500Hz QAM modulation Constellation 4QAM Coding mode PN15 QAM rate 500Hz SUM modulation Modulation source Internal Modulation wave Sine Modulation frequency 500Hz Modulation depth 100 ...

Страница 153: ...dge Rising edge Pulse train Mode of pulse train N cycle Initial phase 0 Burst period period of pulse train 10ms Recurring number 1 Gated polarity Positive polarity Trigger source Internal Trigger output Off Trigger edge Rising edge UART protocol Baud rate 9600bps Data bit width 4bits Data None Sending mode Automatic Interval of send time 1ms Stop bit 1bit Check bit None ...

Страница 154: ... bit width 7bits SPI protocol Clock 1MHz Data None Sending mode Automatic Send time 1ms DARB Clock 1KHz Data None Sending mode Automatic System parameter IP type DHCP Clock source Internal Clock output Off Sound of buzzer On Separator of numbers Backlight 100 Language Depends on factory setting ...

Страница 155: ...1μHz 4MHz 16 order harmonic 1μHz 30MHz 1μHz 50MHz 1μHz 80MHz White noise 80MHz bandwidth 3dB typical value 120MHz bandwidth 3dB typical value 160MHz bandwidth 3dB typical value Resolution 1 μHz Accuracy Within 90 days 50 ppm Within 1 year 100 ppm 18 C 28 C Temperature coefficient 2 ppm C Sine spectrum purity Harmonic distortion Typical value 0dBm DC 1MHz 60dBc 1MHz 10MHz 55dBc 10MHz 100MHz 50dBc 1...

Страница 156: ...armonic can be set Output characteristic Amplitude 50Ω load 20MHz 1mVpp 10Vpp 20MHz 1mVpp 10Vpp 20MHz 1mVpp 10Vpp 80MHz 1mVpp 5Vpp 80MHz 1mVpp 5Vpp 80MHz 1mVpp 5Vpp 120MHz 1mVpp 2 5Vpp 120MHz 1mVpp 2 5Vpp 160MHz 1mVpp 1Vpp Accuracy 1 of set value 1mVpp Amplitude flatness 10MHz 0 1dB 10MHz 0 1dB 10MHz 0 1dB 80MHz 0 2dB 80MHz 0 2dB 80MHz 0 2dB 120MHz 0 4dB 120MHz 0 4dB 160MHz 0 8dB DC offset Range p...

Страница 157: ...with duty ratio of 50 2mHz 1MHz PSK modulation Carrier wave Sine wave square wave sawtooth wave arbitrary wave Source Internal external Modulation wave Square wave with duty ratio of 50 2mHz 1MHz BPSK modulation Carrier wave Sine wave square wave sawtooth wave arbitrary wave Source Internal PN code Modulation wave Square wave with duty ratio of 50 2mHz 1MHz QPSK modulation Carrier wave Sine wave s...

Страница 158: ...unt 1 50 000 periods infinite gated Initial and stop phase 360 360 Internal cycle 1μs 500 s 1 Gated source External trigger Trigger source Manual external or internal Protocol Output SPI Waveform length 1 512 bytes Clock frequency 10kHz 40MHz Sending mode Single manual trigger continuous trigger Continuous trigger time interval 1ms 10s Output level TTL level output I2C SPI waveform length 1 512 by...

Страница 159: ...utput level TTL compatible Input output impedance 10kΩ 50Ω typical value AC coupling Locking time 1s Trigger input Input level TTL compatible Slope Rising or falling optional Pulse width 100 ns Input impedance 10kΩ DC coupling Response time Frequency sweep 500μs typical value Pulse train 500ns typical value Trigger output Level TTL compatible access 1kΩW Pulse width 400ns typical value Output impe...

Страница 160: ...upply voltage 100 240VACrms 45 440Hz CAT II 300V Power consumption Less than 50W Fuse 2A level T 250V Environment Temperature range Operating 10 40 Non operating 20 60 Cooling method Forced fan cooling Humidity range Below 35 90 relative humidity 35 40 60 relative humidity Altitude Operating below 3 000m Non operating below 15 000m Mechanical specification Dimensions Width 336 mm Height 174 mm Dep...

Страница 161: ...List of Accessories Model AWG series dual channel Standard configuration Mains power lead for country supplied USB data line Two BNC cables 1m CD for users LAN port Optional components Digital interface digital cable ...

Страница 162: ... to prevent electrical short circuit and even personal injury due to moisture INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL ELECTRONIC EQUIPMENT When this product has reached the end of its life it must be treated as Waste Electrical Electronics Equipment WEEE Any WEEE marked products must not be mixed with general household waste but kept separate for the treatment recovery and recycl...

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