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4.7 Setting and Operation of Modulation

WF1967/WF1968

4-55

4.7.2 Screen for Setting and Operation of Modulation

The following explains the common screen configuration of the modulated oscillation mode and

modulation function (in other modes).

Settings and operations are performed in the Oscillator setting screen. When you press the MENU

key while another screen is displayed, the Top menu is displayed. Select [Oscillator] and then press

the ENTER key.

a) To set the oscillation mode to modulation

b) First page of the setting screen: screen for setting the carrier signal

Common items which are independent of the oscillation mode. This is the screen for

setting the modulation carrier signal.

c) Second page of the setting screen: screen for setting the modulation function and

synchronization/sub output terminal

This appears on page three in the burst oscillation mode and the sweep oscillation

mode.

The following figure is an example of selecting FM as a modulation type.

Set the oscillation mode to
[Modulation]

Press the MODE key to open the oscillation mode
selection list. Please select the modulated oscillation
mode [Modulation]. (



This switches to modulated oscillation mode. There
are total 2 pages of the setting screens in the
modulated oscillation mode. You can switch the page
by using the NEXT key.
Some of the modulation features may also be used
with the sweep oscillation mode and the burst
oscillation mode.

Indicates that the first page
is displayed

Pressing the NEXT
key switches the
display to the
second page

Indicates that the second
page is displayed

Modulation type

Modulation width

Modulation source

Internal modulation waveform

Internal modulation frequency

Synchronization output

Pressing the NEXT
key switches the
display to the first
page

Internal modulation phase

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Содержание WAVE FACTORY WF1967

Страница 1: ...MULTIFUNCTION GENERATOR WF1967 WF1968 Instruction Manual Operations NF Corporation nbn Austria GmbH...

Страница 2: ......

Страница 3: ...MULTIFUNCTION GENERATOR WF1967 WF1968 Instruction Manual Operations DA00048287 002...

Страница 4: ......

Страница 5: ...he equipment This manual has the following chapter organization The instructions for remote control GPIB USB LAN Option are provided in a separate manual included in the attached CD ROM If using this...

Страница 6: ...ernal frequency reference 11 Using Sequence Oscillation This chapter describes how to set and operate sequence oscillation 12 Using User defined Units This chapter describes the units which users can...

Страница 7: ...re to observe these warnings Be sure to ground the product This product uses a line filter which may cause electric shock if the product is not grounded This product is grounded automatically by conne...

Страница 8: ...n this product and in the instruction manual are provided below Instruction Manual Reference Symbol This notifies the user of potential hazards and indicates that he she must refer to the instruction...

Страница 9: ...oduct is grounded when being used the potential of the enclosure equals the grounding potential Requesting waste disposal To protect the environment ensure that this device is disposed of by an approp...

Страница 10: ...WF1967 WF1968 vi...

Страница 11: ...YNC SUB OUT 3 8 3 2 3 External Modulation Addition Input MOD ADD IN 3 10 3 2 4 External Trigger Input TRIG IN 3 11 3 2 5 External 10MHz Frequency Reference Input 10MHz REF IN 3 12 3 2 6 Frequency Refe...

Страница 12: ...igh Low Level 4 36 4 4 11 To Set Waveform Polarity and Amplitude Range 4 38 4 4 12 How to Use Auto Range Range Hold for Output Voltage 4 40 4 4 13 To Set Load Impedance 4 41 4 4 14 To Add External Sig...

Страница 13: ...g and Recalling Settings 5 1 5 1 Procedure to Save Settings 5 2 5 1 1 To save to build on memory 5 2 5 1 2 To save to USB flash memory 5 3 5 2 Procedure to Recall Settings 5 4 5 2 1 To recall from bui...

Страница 14: ...8 5 8 4 Phase Synchronization between Channels 8 6 8 5 Maintaining to Same Frequency 2 Channel Coordination 2 Phase 8 7 8 6 Keeping Frequency Difference Constant 2 Channel Coordination 2 Tone 8 9 8 7...

Страница 15: ...n Display Information 13 3 14 Troubleshooting 14 1 14 1 Error Messages at Power on 14 2 14 2 Error Messages during Operation 14 3 14 3 Conflict Messages for Modulation 14 7 14 4 Conflict Message for S...

Страница 16: ...Pulse Wave 17 9 17 5 4 Ramp Wave 17 9 17 5 5 Noise 17 9 17 5 6 Parameter Variable Waveform 17 10 17 6 Modulated Oscillation Mode 17 11 17 6 1 General 17 11 17 6 2 FM 17 12 17 6 3 FSK 17 13 17 6 4 PM 1...

Страница 17: ...WF1967 WF1968 xiii 17 14 Synchronization of Multiple Units 17 25 17 15 User defined Unit 17 26 17 16 Other Functions 17 26 17 17 Options 17 27 17 18 General Characteristics 17 27...

Страница 18: ...3 3 Figure 3 3 Front Panel of WF1968 3 4 Figure 3 4 Rear Panel of WF1968 3 5 Figure 3 5 Multi I O connector pin configuration diagram 3 16 Figure 3 6 Cautions on floating ground connection for WF1967...

Страница 19: ...WF1967 WF1968 1 1 1 Overview 1 1 Features 1 2 1 2 Operating Principles 1 4...

Страница 20: ...cy Maintains the flatness of frequency characteristics Sine wave amplitude during frequency sweeps and frequency modulation Output waveform resolution Approximately 16 bit retains high resolution acro...

Страница 21: ...losure to reduce the effects of ground loops Supports the synchronization of multiple units to configure a multiphase oscillator Built in USB GPIB interface Storage of settings and arbitrary waveforms...

Страница 22: ...ations and waveforms The DDS also generates of modulation sweeps and bursts Digital waveform signals generated by DDS are controlled by the specified polarity normal or inversed and amplitude range FS...

Страница 23: ...CONT ANALOG CONT 2 2MS s TTL 3V LPF LPF A D FRONT PANEL UNIT USB MEMORY LAN option MULTI I O Figure 1 2 WF1968 Block Diagram The external modulation signal passes through the LPF is converted from ana...

Страница 24: ...y reference output it sends a channel synchronization WF1968 only signal to the Analog section of each channel Power Supply Continuously supplies power from the AC DC source directly connected to the...

Страница 25: ...WF1967 WF1968 2 1 2 Preparations Before Use 2 1 Checking Before Use 2 2 2 2 Installation 2 3 2 3 Grounding and Power Supply Connection 2 5 2 4 Firmware Update 2 6 2 5 Calibration 2 6...

Страница 26: ...e confirm that no items are missing are damaged This product has high voltage portions inside Absolutely never remove its cover Do not touch the inside by yourself in any case c Repackaging When you r...

Страница 27: ...r less Do not install the device in the following locations Place exposed to inflammable gas This may pose a risk of explosion Never install use or operate the instrument in such an environment Outdoo...

Страница 28: ...to the manual included with the kit Following attention should be drawn when you mount the equipment in the rack Be sure to install rails in the rack to support the equipment Do not mount this produc...

Страница 29: ...968 85VA or lower b Connection procedure of the power source 1 Confirm that the commercial power source voltage is within the allowable voltage range of this product 2 Connect the power cord into powe...

Страница 30: ...m the update as necessary 2 5 Calibration This equipment should undergo performance testing about once a year as a guideline although this depends on the usage environment and usage frequency Moreover...

Страница 31: ...WF1967 WF1968 3 1 3 Panels and I O Terminals 3 1 Panel Component Names and Functions 3 2 3 2 I O Terminals 3 6 3 3 Cautions on Floating Ground Connection 3 18...

Страница 32: ...to trigger sweep or burst P 4 77 P 4 95 Triggered lamp Lights when a trigger is accepted P 4 77 P 4 95 UNDO key Undo setting changes Lamp above lights up when UNDO is available P 4 17 Power switch P...

Страница 33: ...3 2 Rear Panel of WF1967 USB connector Frequency reference output terminal P 3 13 External 10 MHz frequency reference input terminal P 3 12 GPIB connector Power supply input P 2 5 Air outlet P 2 3 Mul...

Страница 34: ...ger is accepted P 4 77 P 4 95 UNDO key Undo setting changes Lamp above lights up when UNDO is available P 4 17 Power switch P 4 2 LCD screen Soft keys The operation items are displayed on the LCD scre...

Страница 35: ...H1 External trigger input terminal P 3 11 CH2 External trigger input terminal P 3 11 Frequency reference output terminal P 3 13 External 10 MHz frequency reference input terminal 3 12 CH1 External mod...

Страница 36: ...lements will try to reduce the voltage but a too high voltage may cause the product to be burned P 3 18 Do not apply a voltage from external to the output terminals This may damage the product Do not...

Страница 37: ...sire it always keep the waveform output on and use the trigger burst oscillation and gate oscillation to start stop the oscillation P 4 93 Output Characteristics Output voltage Maximum 10V open Output...

Страница 38: ...al P 4 59 Reference phase synchronization signal TTL level signal synchronized with internal modulation signal Internal modulation signal maximum 3V to 3V open Amplitude and offset may be set as desir...

Страница 39: ...e synchronization waveform output P 4 30 At high frequencies actually comes out phase difference at 0 set by the difference in propagation delay time of the output circuit of the main waveform output...

Страница 40: ...al addition signal input to the waveform output The gain of external addition is x0 4 x2 or x10 External modulation input P 4 59 External addition input P 4 42 Input Characteristics Input voltage 1V F...

Страница 41: ...d single sweep P 4 77 Start trigger of trigger burst oscillation P 4 95 Gate of gate oscillation P 4 99 Trigger of triggered gate oscillation P 4 103 It can also be used as the external modulation inp...

Страница 42: ...ference setting to enable P 10 4 To unify the frequency and phase of multiple WF1967 WF1968 units Connect the frequency reference output of the master unit to the external 10MHz frequency reference in...

Страница 43: ...Output REF OUT WF1967 WF1968 This terminal is used to unify the frequency and phase of multiple WF1967 WF1968 units Connect the frequency reference output of the master unit to the external 10MHz fre...

Страница 44: ...t any equipment other than WF1967 WF1968 and the equipment specified by NF Corporation to the frequency reference output The special signal that is output from this terminal during synchronization may...

Страница 45: ...for sequence oscillation mode Sequence oscillation can be controlled as follows using 4 bit logic input P 11 11 Start or State Branch You may choose Start control or State branch control It starts the...

Страница 46: ...and Red 7 GND Gray and Black 8 GND Gray and Red 9 Reserved Do not connect anything Do not connect anything White and Black 10 GND White and Red 11 Input Not in use Event Branch Light brown and Black B...

Страница 47: ...2 6V or higher Maximum allowable input 0 5V to 5 5V Input impedance 10k pull up to 5V Output voltage TTL level low 0 4V or lower high 2 7V or higher Signal GND Same potential as the enclosure Connect...

Страница 48: ...ent electric shocks The other signal grounds are all connected to the enclosure The enclosure itself is connected to a protective conductor terminal of the power supply input To prevent electric shock...

Страница 49: ...ential difference of 42Vpk or less Use with potential difference of 42Vpk or less Enclosure ground Enclosure ground Enclosure ground Enclosure ground Use with potential difference of 42Vpk or less Use...

Страница 50: ...3 3 Cautions on Floating Ground Connection WF1967 WF1968 3 20 MEMO...

Страница 51: ...guration and Operation 4 6 4 3 Basic Settings and Operations 4 12 4 4 Setting for Main Items 4 26 4 5 Using Variable Parameter Waveforms 4 52 4 6 Using Arbitrary Waveforms 4 53 4 7 Setting and Operati...

Страница 52: ...ff Power on operation Once the power is turned on a self test is executed and then the equipment becomes operable Power off operation Power off state standby state The power is turned on The start scr...

Страница 53: ...er supply is on The most general case is illustrated below While the power is off if the power supply is cut off due to the disconnection of the power cord or the shutoff of the connected breaker this...

Страница 54: ...ut on off setting at power on can be changed on the Utility P 4 21 The Sequence Oscillation mode and Sequence state restarts from beginning in Run Hold are also restored Check The settings immediately...

Страница 55: ...llation mode on the Utility P 4 21 In this case the sequence stored in sequence memory 1 will automatically start Check As the settings before the power supply is cut off are not restored specify the...

Страница 56: ...oration or Dealer Overheating status Temp Displayed when the internal temperature of the product is abnormally high If this status is displayed when the product is used at an ambient temperature of 40...

Страница 57: ...een P 4 8 If the setting screen has multiple pages use the Next soft key to change pages If there are multiple setting screens an icon at the top center of the screen will indicate the currently displ...

Страница 58: ...f the output waveform a Display format types The following three types of display formats are provided on the Oscillator screen Text display Text WF1967 or Single WF1968 Displays the settings for one...

Страница 59: ...or the modify knob to select the Graph tab 3 Press the ENTER key to switch to the Graph tab screen On this screen you can set the parameters while checking the image of the output waveform Check In WF...

Страница 60: ...ration target by tab selection to internal memory or USB flash memory a To switch the storage and reading destination When USB interface is not used it will appear as DISK when USB flash memory plugge...

Страница 61: ...window open specify the menu item using the numeric keypad 1 to 6 b Operations available using top menu items For each item the following settings and operations can be performed Oscillator Opens the...

Страница 62: ...t example the Frequency field is selected 2 Press the ENTER key to open an entry field to change the current value In this state you can enter a value using the numeric keypad 3 Press the left right a...

Страница 63: ...t example the value is changed to 2 kHz The change is immediately reflected to the output 5 Press the ENTER key to close the input field Incrementing decrementing the value or If you press the CANCEL...

Страница 64: ...ss the ENTER key or the unit key soft key to set the input value and reflect it to the output If you press the ENTER key the value is set without prefixes such as k or m Check If a setting item is dis...

Страница 65: ...ame time a selection list of waveforms will open 2 Pressing the key directly below the lighting waveform will select that waveform and reflect it in the output For example in the image shown to the le...

Страница 66: ...waveform frequency amplitude DC offset and oscillation mode can be immediately opened by using the corresponding basic parameter shortcut key Frequency Amplitude DC Offset Oscillation mode The freque...

Страница 67: ...ollowing cancellations Close an input field or selection list Discard the value input from the numeric keypad Restore the value changed by using the modify knob Close a setting window or dialog box Fu...

Страница 68: ...o open the input field 2 Press the Prefix soft key to move the cursor to before Hz You can also press the right arrow key to move the cursor to before Hz 3 You can use the up down arrow keys or the mo...

Страница 69: ...arrow key to move the cursor to Vp p 3 You can use the up down keys or the modify knob to change the units to Vrms dBV or a user defined unit in the case of sine wave and load impedance Hi Z This jus...

Страница 70: ...n the channel The channel that is to be set is called the active channel in this product In the burst oscillation and other modes the TRIG key works for the channel whose display is active Active sett...

Страница 71: ...68 P 8 6 P 9 4 User Defined Unit Settings User Unit Sets the user defined units P 12 3 Output and Sequence at power on Power On State Determines the output on off settings when the power is turned on...

Страница 72: ...set or change each item External 10MHz Frequency Reference ON OFF Ext Reference Sets permitted or forbidden for the external 10MHz frequency reference P 10 4 External 10MHz Frequency Reference state...

Страница 73: ...the settings 4 3 9 Output On Off a Key Operation Switches the waveform output on off when pressed WF1967 has an OUTPUT key WF1968 has CH1 and CH2 keys The ON lamp above the key will lit when the outp...

Страница 74: ...front panel The settings before the previous power off are restored If the power was turned off by disconnecting the power supply The output will remain off Oscillator mode not sequence mode This is t...

Страница 75: ...put setting is completed select OK and then press the ENTER key The change of the power on output setting is applied and the window is closed When you do not want to apply the change of the power on o...

Страница 76: ...lay screen 1 channel display in the continuous oscillation mode as an example There are two settings pages and the main settings can be found on the first page 4 4 1 Text Display Screen in Continuous...

Страница 77: ...ODE key or use the arrow keys and modify knob to select the MODE item Pressing the ENTER key will open the oscillation mode selection list Select the desired oscillation mode from the selection list a...

Страница 78: ...n unit is selected P 4 53 4 4 4 To Set Frequency 1 Press the FREQ key to open the input field of Frequency Or select the Frequency field and then press the ENTER key Frequency is displayed at first pa...

Страница 79: ...following two methods are available to change from the frequency display to the period display Use the soft key Freq Period The input field of Frequency opens When the current Frequency is displayed...

Страница 80: ...e reference phase synchronous output in the Synchronization Sub output and waveform output can be changed The following figure shows an example of a phase setting of 90 degree At this time the zero re...

Страница 81: ...H2 precedes the waveform of CH1 as shown in the following figure For Synchronous Oscillation and 2 Phase Oscillation see P 8 6 P 8 7 Phase Difference Between Main and Sub Output Can be Changed Modulat...

Страница 82: ...ator frequency will be displayed Synchronization is possible across a range from 20Hz to 10MHz Loss of synchronization can be checked by the UnLock status area in the upper right hand corner of the sc...

Страница 83: ...it position at the right end 2 The unit can be changed by using the up or down arrow key modify knob Only the display unit is changed without changing the actual output value c Available units differ...

Страница 84: ...set is restricted to 10V open 110MHz or less or 2V open For example when the AC amplitude is 5Vp p open DC offset is restricted to the range from 7 5V open to 7 5V open When the frequency is 110MHz or...

Страница 85: ...nd then use the up or down arrow key or the modify knob to increment the value The change is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the...

Страница 86: ...o change to the High Low display When the shortcut key AMPTD is pressed twice without opening the input field of Amplitude the input field of High level is opened While the input field of high level i...

Страница 87: ...n AC DC Depending on the oscillation frequency high level and low level are restricted to a range of 10V to 10V open 110MHz or less or 2V to 2V open The maximum range also differs depending on the ran...

Страница 88: ...ist and press the ENTER key to reflect it in the output You can also enter the number of the desired polarity and amplitude range displayed in the list on the numeric keypad to reflect it in the outpu...

Страница 89: ...de is changed only the positive peak of waveform will change in reference to the DC offset position The amplitude will change in reference to the waveform s base The amplitude will change in reference...

Страница 90: ...essing is opened 2 When AUTO is selected it is set to Auto range Selecting HOLD fixes the range at that time Select the desired range processing and then press the ENTER key b Maximum values of Amplit...

Страница 91: ...field at the right of the range field is selected and the ENTER key is pressed the selection list is displayed 2 Select the desired load impedance condition and then press the corresponding soft key W...

Страница 92: ...his BNC terminal is insulated from the chassis and the same ground electrical potential as the waveform output of the identical channel For the floating ground connection P 3 18 b To activate an addit...

Страница 93: ...factor of 10 set the amplitude and the DC offset setting so that the output voltage range is 20V Because the external addition adds to the final stage of a waveform output P 1 4 the addition gain is...

Страница 94: ...key or the modify knob to increment the value The change is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the unit key soft key to set the in...

Страница 95: ...d to the low level and when 100 is set the waveform is fixed to the high level The pulse is not output in either case When the oscillation frequency is an integer ratio compared to 420MHz the edge tim...

Страница 96: ...is immediately reflected to the output Or use the numeric keypad to enter the value Press the ENTER key or the unit key soft key to set the input value and reflect it to the output When the ENTER key...

Страница 97: ...ulse width with time or duty e How to set leading falling time The leading time LE and the trailing time TE can be set with time only 1 To set the leading time select the LE field and then press the E...

Страница 98: ...railing time are limited to 10ns or longer at 100Hz Furthermore the actual leading trailing times which are output in the 20Vp p range will be a maximum of 0 4ns later compared to other ranges even if...

Страница 99: ...tio of the rising portion from start to finish The point at which the phase is zero degrees has been fixed to zero of the amplitude except in the case where the symmetry is 0 4 4 18 To Set the Equival...

Страница 100: ...a frequency different from the main waveform However only when this is not necessary to output a modulated wave to the main waveform for use Condition 1 Conditions that can be selected SubFctn Settin...

Страница 101: ...b Waveform Amplitude Select the sub waveform amplitude SubAmp on the second page or third page of the Oscillator setting screen The maximum total value of AC amplitude and DC offset is restricted to 3...

Страница 102: ...settings can be changed even if you leave the selection screen Each waveform has a maximum of 5 specific variable parameters to be set Press the Reset soft key to initialize the variable parameters T...

Страница 103: ...For creation of arbitrary waveforms data format and memory capacity P 7 2 The method for changing the name is the same as for the settings memory A maximum of 20 characters may be entered 3 Press OK...

Страница 104: ...dulation P 4 61 FSK Frequency Shift Keying Binary Frequency Shift Keying P 4 62 PM Phase Modulation P 4 63 PSK Phase Shift Keying Binary Phase Shift Keying P 4 64 AM Amplitude Modulation P 4 66 AM DSB...

Страница 105: ...put terminal This appears on page three in the burst oscillation mode and the sweep oscillation mode The following figure is an example of selecting FM as a modulation type Set the oscillation mode to...

Страница 106: ...ctn in the sub output selection SubOut will output an internal modulation signal from the synchronization sub output BNC terminal At this time the internal modulation signal can be used as an independ...

Страница 107: ...put when the modulation function is turned off or set to external modulation P 4 58 Sub output selection SubOut Selects the output signal from the synchronization sub output terminal Choose from the s...

Страница 108: ...lation frequency ModFreq and the internal modulation phase ModPhs Select the internal modulation waveform ModFctn from the following seven types Sine wave Sine Down ramp wave DnRamp Square wave duty 5...

Страница 109: ...put terminal The setting of the modulation width is the value for a signal level of 1V Note that if the input level is lower than 1V the modulation width is lower than the specified value When the ext...

Страница 110: ...scilloscope When ModFctn is selected only when modulation function is on and using internal modulation The internal modulation waveform is output from the synchronization sub output BNC terminal The a...

Страница 111: ...y deviation Deviation on the second page of the setting screen The output frequency changes within the range of carrier frequency peak frequency deviation When the modulation source Source is internal...

Страница 112: ...q on the second page of the setting screen The carrier frequency and the hop frequency appear alternately in the output frequency When the modulation source Source is internal Int set the modulation w...

Страница 113: ...nnot be performed with phase sweep d Setting items necessary for PM Set the peak phase deviation Deviation on the second page of the setting screen The output phase changes within the range of peak ph...

Страница 114: ...force quit the Synclator function d Setting items necessary for PSK Set the phase deviation Deviation on the second page of the setting screen The state of phase deviation zero and the state of a spe...

Страница 115: ...he trigger when the modulation source Source is external Ext and then enter the modulation signal TTL level to the external trigger input terminal When the polarity is set as positive High the phase d...

Страница 116: ...setting screen The output amplitude changes within the range of the carrier amplitude setting value Vp p 2 x 1 modulation depth 100 When the modulation depth is 0 or the modulation is stopped the outp...

Страница 117: ...n waveform ModFctn modulation frequency ModFreq and modulation phase ModPhs Internal Int cannot be selected during sweep oscillation mode When the modulation source Source is external Ext enter the mo...

Страница 118: ...cond page of the setting screen The output amplitude changes within the range of the carrier amplitude setting value Vp p x modulation depth 100 When the modulation depth is 100 the maximum value of t...

Страница 119: ...Set the peak DC offset deviation Deviation on the second page of the setting page The output DC offset changes within the range of DC offset setting peak DC offset deviation When the modulation source...

Страница 120: ...f the setting page The output duty is changed within the range of carrier duty peak duty deviation When the pulse wave is used the pulse width of the carrier is fixed to the duty setting and cannot be...

Страница 121: ...and then press the ENTER key a To set the oscillation mode to sweep Selecting sweep oscillation mode force quits the Synclator function b First page of the setting screen Basic parameter setting scree...

Страница 122: ...weep Select as a trigger source from the inside or outside P 4 77 Stop level StpLvl The signal level when gated single sweep is stopped Set the level by specifying Off or On P 4 76 Sweep time Time Tra...

Страница 123: ...odulation width Deviation Depth HopFreq This is the modulation width The item name changes with the modulation type P 4 58 Modulation source Source The modulation source is fixed to external Ext in sw...

Страница 124: ...lue is opened and the displayed items are changed from Start Stop to Center Span respectively The soft key Center Span is also changed to Start Stop When the soft key Start Stop is pressed here then t...

Страница 125: ...value stop value during sweep When the soft key Stt Stp of the soft key set displayed as 2 2 on the right end soft key on the second raw of the second page of the setting screen is pressed the starti...

Страница 126: ...sweep mode SwpMode on the second page of the setting screen as gated single Gated This is an operation that combines gate oscillation with sweep Sweeps start with a trigger Because a trigger signal i...

Страница 127: ...ger Trig on the second page of the setting screen Trigger source setting A trigger source can be selected from internal Int or external Ext When a trigger source is internal Int a trigger cycle can be...

Страница 128: ...to the correct setting a trigger can be accepted P 14 8 The soft key Start and the manual trigger key on the panel operate as manual trigger operation regardless of the trigger source setting m To pau...

Страница 129: ...led Off When Sync is selected Signals with TTL level that are rising at the reference phase of waveform are output from the synchronization sub output terminal When SwpSync is selected A TTL level sig...

Страница 130: ...ring sweep is observed with oscilloscope with X Y display or X Y recorder it can be used as a signal of the X axis The following figure shows the relation between a sweep value and each signal When th...

Страница 131: ...signment P 3 16 The following operations can be performed Sweep start pin 14 Falling input to pin 14 starts the sweep The sweep will restart from the beginning even if it is already running In the cas...

Страница 132: ...on frequency is displayed Starting frequency Start The frequency range depends on a waveform Stop frequency Stop The frequency range depends on a waveform Sweep time Time Time to change from the start...

Страница 133: ...falls by following value b To select phase sweep c Waveform or mode where phase sweep is unavailable Noise and DC cannot perform phase sweep FSK PSK and PM modulation are canceled modulation function...

Страница 134: ...Amplitude Sweep For the sweep setting screen and the common operation method please refer to P 4 71 P 4 74 a Amplitude sweep example Examples of a continuous sweep and linear shuttle Shuttle sweep b...

Страница 135: ...op second page of the setting screen P 4 76 The setting used for gated single sweep only Synchronization sub output selection SubOut third page of the setting screen P 4 79 4 8 7 Setting DC Offset Swe...

Страница 136: ...nter span DC offset Span instead of start DC offset stop DC offset P 4 74 When sweep mode is single or gated single it is necessary to set the trigger condition Trig P 4 77 Set the following items as...

Страница 137: ...SwpMode Select from continuous single or gated single P 4 75 Sweep function SwpFctn Select from one way shuttle P 4 75 It is possible to set with center duty Center and span duty Span instead of star...

Страница 138: ...ttings and operations are performed in the Oscillator setting screen When you press the MENU key while another screen is displayed the Top menu is displayed Select Oscillator and then press the ENTER...

Страница 139: ...nal modulation signal can be used as an independent signal source by freely setting the waveform frequency phase amplitude and DC offset Modulation source Source Select internal Int or external Ext fo...

Страница 140: ...llation and pause automatically at the specified by waveform respectively A trigger signal is not necessary a Auto burst example Mark wave number oscillation wave number 3 waves space wave number stop...

Страница 141: ...s displayed in the channel status area When pressing the soft key displayed on the left end the message concerning an improper setting appears When that is changed to a proper setting burst oscillatio...

Страница 142: ...is observed with the oscilloscope etc it can be used as a trigger signal of the oscilloscope When Off is selected The output will be low level This helps to reduce interference from the common GND of...

Страница 143: ...set burst mode to trigger burst Setting trigger burst will force quit the Synclator function Select Trigger on the burst mode setting menu Select burst oscillation mode BrstMode on the second page of...

Страница 144: ...vel StpLvl The signal level while oscillation is stopped Set the level by specifying Off or On P 4 97 d Waveform that trigger is unavailable Noise and DC cannot perform trigger burst e Setting items n...

Страница 145: ...he trigger source setting The TRIG key can be used for manual trigger operation However in the case of WF1968 the TRIG key only works on the channel side where the display is active For the channel wh...

Страница 146: ...form SubFctn Output disabled Off Output disabled Off When Sync is selected Signals with TTL level that are rising at the reference phase of waveform are output from the synchronization sub output term...

Страница 147: ...se 30 degrees stop level is OFF or ON and 50 Note that start oscillation stop phase is still effective When you the stop level is applied to the square wave a square wave with three values can be outp...

Страница 148: ...Stop Unit OscStop The oscillation stop unit Select from 1 cycle and half cycle P 4 100 Trigger Trig The trigger condition gate condition Select as a trigger source from the inside or outside P 4 99 S...

Страница 149: ...page of the setting screen The trigger delay is fixed to the minimum value Trigger source setting A trigger source can be selected from internal Int or external Ext When a trigger source is internal I...

Страница 150: ...e synchronization sub output terminal It is low during oscillation and high while oscillation is stopped as show in the following figure Note that it is different from a gate signal When a signal unde...

Страница 151: ...scale of the amplitude independently Set the stop level StpLvl as On On on the second page of the setting screen and set the level with value P 4 97 k Noise gate oscillation Because noise has no cycl...

Страница 152: ...p phase after the gate signal is Off b To set burst mode as triggered gate oscillation Setting triggered gate oscillation force quits the Synclator function Select TrigGate on the burst mode setting m...

Страница 153: ...P 4 104 A trigger is necessary for triggered gate oscillation See the next section f Trigger setting of triggered gate oscillation Internal trigger oscillator external signal manual trigger key operat...

Страница 154: ...ync Burst synchronization BrstSync Internal modulation synchronization ModSync Internal modulation waveform ModFctn Sub waveform SubFctn Output disabled Off Output disabled Off When Sync is selected S...

Страница 155: ...io to the full scale of the amplitude independently Set the stop level StpLvl as On On on the second page of the setting screen and set the level with value P 4 97 k Triggered gate oscillation of nois...

Страница 156: ...4 9 Setting and Operation of Burst WF1967 WF1968 4 106 MEMO...

Страница 157: ...ng and Recalling Settings 5 1 Procedure to Save Settings 5 2 5 2 Procedure to Recall Settings 5 4 5 3 Restoring Saved Contents to Initial Settings 5 6 5 4 Changing Setting Memory Name 5 6 5 5 USB Flas...

Страница 158: ...decrement the setting memory number In the left side of the screen the specified setting memory number and its setting name are highlighted The overview of the setting saved in the specified setting m...

Страница 159: ...he modify knob to increment or decrement the setting memory number In the left side of the screen the specified setting memory number and its setting name are highlighted The overview of the setting s...

Страница 160: ...are highlighted on the far left of the screen The overview of the setting saved in the specified setting memory number is displayed on the right side of the screen 3 Press the Recall soft key to open...

Страница 161: ...mber The specified setting memory number and its setting name are highlighted on the far left of the screen When folder in the last of the name a thing with is selected and pushed Enter soft key move...

Страница 162: ...string to the right of the cursor to the left by one character Press the Insert soft key to insert a space at the cursor position Press the CLR soft key to delete the string to the right excluding the...

Страница 163: ...creen for USB flash memory Select this button and press the ENTER key to display a dialog for entering the folder name Enter the name and press OK to create the new folder below the current folder and...

Страница 164: ...5 5 USB Flash Memory Operations WF1967 WF1968 5 8 that made the adjustment of the instrument is obtained by adding energizing time It is not possible to change the date and time for the time stamp...

Страница 165: ...WF1967 WF1968 6 1 6 Variable Parameter Waveforms 6 1 Categories 6 2 6 2 Meaning of Each Parameter and Waveform Examples 6 3...

Страница 166: ...explanations in this chapter it does not limit how the waveforms can be used Steady Sine Group Waveform created based on a sine wave Intended for repeated output Transient Sine Group Waveform created...

Страница 167: ...vertical axis 1 corresponds to the waveform memory s full scale amplitude FS The horizontal axis is the time axis and represents the time for one cycle with a 1 The horizontal axis also represents th...

Страница 168: ...plitude range is FS First half amplitude Amptd1 The amplitude of the first half cycle When it is 100 the amplitude is the same as the original sine wave Variable range 100 00 to 100 00 Second half amp...

Страница 169: ...tput waveform saturated by the power supply voltage Meaning of each parameter The example shows the case where the amplitude range is FS Clip ratio Clip The ratio by which the top and bottom of the or...

Страница 170: ...rent waveform of a condenser input rectifier circuit Meaning of each parameter The example shows the case where the amplitude range is FS Crest factor CF The crest factor expresses the ratio of the pe...

Страница 171: ...ction angle Angle When the conduction angle is positive the waveform is a sine wave with the conduction angle portion removed from the back of the half cycle When the conduction angle is negative the...

Страница 172: ...ates the pseudo sine wave output of a UPS uninterruptible power supply etc Meaning of each parameter The example shows the case where the amplitude range is FS Steps The number of stairs The example a...

Страница 173: ...ion Meaning of each parameter The example shows the case where the amplitude range is FS Cycles The number of cycles included in one basic cycle Variable range 0 01 to 50 00 Start Phase Phase The phas...

Страница 174: ...se where the amplitude range is FS Phase at start completion OnPhase The original sine wave starts from this phase Variable range 0 00 to 360 00 Starting slope time SlopeT The linear change in time of...

Страница 175: ...amplitude range is FS Shut off start phase OffPhase The original sine wave ends at this phase Variable range 0 00 to 360 00 Shut off slope time SlopeT The linear change in time of the amplitude from t...

Страница 176: ...attering pattern from this phase It is fixed at zero before that Variable range 0 00 to 360 00 Number of chattering ChatterN The number of times it repeatedly turns on and off The repeated on and off...

Страница 177: ...a chattering pattern from this phase as it shuts off Variable range 0 00 to 360 00 Number of chattering instances ChatterN The number of times it repeatedly turns off and on The repeated on and off p...

Страница 178: ...fixed at FS at the center of the horizontal axis The head and tail do not go to zero Please note that the greater the standard deviation the more the head and tail will float above the zero level The...

Страница 179: ...alue is fixed at FS at the center of the horizontal axis The head and tail do not go to zero Please note that the greater the half value width the more the head and tail will float above the zero leve...

Страница 180: ...sine wave over the 90 to 270 range Other ranges are fixed at the zero level Variable range 0 01 to 100 00 of basic cycle Peak value is fixed at FS at the center of the horizontal axis Waveform exampl...

Страница 181: ...idth of a sine wave from the 0 to 180 range Other ranges are fixed at the zero level Variable range 0 01 to 100 00 of basic cycle Peak value is fixed at FS at the center of the horizontal axis Wavefor...

Страница 182: ...ch oblique side Variable range 0 00 to 50 00 of basic cycle Upper base width UpperBase The width of the upper base Variable range 0 00 to 100 00 of basic cycle Peak value is fixed at FS at the upper b...

Страница 183: ...ss The number of zero crossings on one side Variable range 1 to 50 Peak value is fixed at FS at the center of the horizontal axis Has a frequency band that is roughly fundamental frequency times numbe...

Страница 184: ...onstant TC Time constant of the exponential function Variable range 0 01 to 100 00 of basic cycle The amplitude at infinite time is FS The tail will not rise to FS Please note that the tail value will...

Страница 185: ...TC Time constant of the exponential function Variable range 0 01 to 100 00 of basic cycle The head starts at FS but the tail does not go to zero Please note that the tail offset will get larger as the...

Страница 186: ...e the amplitude range is 0 FS Natural frequency of the LPF Fn The frequency of the oscillation component is lower than Fn Variable range 1 00 to 50 00 times fundamental frequency LPF Q Q The oscillati...

Страница 187: ...plitude range is FS DampTC is positive DampTC is negative Oscillation frequency OscFreq Variable range 0 01 to 50 00 times fundamental frequency Damped oscillation time constant DampTC The oscillation...

Страница 188: ...e shows the case where the amplitude range is FS Oscillation frequency OscFreq Variable range 0 01 to 50 00 times fundamental frequency Damped oscillation time constant DampTC The amplitude of the osc...

Страница 189: ...amplitude to rise from 10 to 90 of the peak value Variable range 0 01 to 100 00 of basic cycle Time duration Td Pulse width with an amplitude 10 or greater of the peak value Variable range 0 01 to 10...

Страница 190: ...Delay The rising start position of the trapezoid wave Variable range 0 00 to 100 00 of basic cycle Rising slope width Rise The width of the rising portion Variable range 0 00 to 100 00 of basic cycle...

Страница 191: ...he example shows the case where the amplitude range is 0 FS Leading time LE Time for the amplitude to change from 10 to 90 of the peak value Variable range 0 00 to 100 00 of basic cycle Trailing time...

Страница 192: ...e where the amplitude range is 0 FS Symmetry Symm The ratio of the rising portion Variable range 0 00 to 100 00 Peak value is fixed at FS Waveform examples The polarity and amplitude range are all Nor...

Страница 193: ...7 3 7 3 Creating New Arbitrary Waveform 7 5 7 4 Simple Arbitrary Waveform Creating Example 7 6 7 5 Outputting Created Arbitrary Waveform 7 7 7 6 Saving Created Arbitrary Waveform 7 7 7 7 To Use the S...

Страница 194: ...created its time axis direction is fixed to 0 to 1 per cycle and the amplitude direction is fixed to 1 equivalent to FS of waveform memory Save location of arbitrary waveforms There are the three foll...

Страница 195: ...ith zero 0 Start point is fixed to X 0 000000 End point is fixed to X 1 000000 and the paired Y values of both the start and end points are the same the same point If an output waveform is set to the...

Страница 196: ...its state Wfm Copy Copies a standard waveform in to the edit memory Recall Copies the already saved arbitrary waveform in the control point format to the edit memory Store Saves the waveform in the ed...

Страница 197: ...soft key to copy a standard waveform to the edit memory Then modify control points How to operate control points is the same as the case of creating a new arbitrary waveform thoroughly However noise...

Страница 198: ...t before the X value and the control point just after the X value The Y value is rounded to 16 bit resolution To change the Y value to the form of a step set the variation width between adjacent X val...

Страница 199: ...ary Waveform 1 Pressing the Store soft key switches to the save screen The internal memory or USB flash memory may be selected as the save destination on this screen 2 Select the Internal or USB tab o...

Страница 200: ...memory and second screen specifies the save destination USB flash memory Press the Next soft key to change screens The currently displayed screen is indicated by the icon at the top center of the scr...

Страница 201: ...the folder is created under the current folder it will appear in the list of files c Time stamp of files WF1967 WF1968 does not have a built in battery will shift the time of the only time stamp minu...

Страница 202: ...lect an arbitrary memory number between 1 and 128 and select the OK soft key The contents of the specified internal memory location are copied to the edit memory The name can also be changed on this s...

Страница 203: ...specified on the next page Pressing the Enter soft key while selecting a folder sets the current folder to the specified folder or for the folder above b To select the retrieval destination Select num...

Страница 204: ...sed as a waveform cannot be deleted 7 8 2 To Delete From USB Flash Memory The screens for saving an arbitrary waveform to USB flash memory are split into two pages One screen specifies the save source...

Страница 205: ...arbitrary waveform in the control point format is shown in the following table Number of control points 2 10 100 300 1 000 2 000 5 000 10 000 Memory capacity required for save 1KiB 1KiB 2KiB 4KiB 9Ki...

Страница 206: ...7 9 Identifying Memory Space Required for Saving Arbitrary Waveforms WF1967 WF1968 7 14 MEMO...

Страница 207: ...nnels 8 6 8 5 Maintaining to Same Frequency 2 Channel Coordination 2 Phase 8 7 8 6 Keeping Frequency Difference Constant 2 Channel Coordination 2 Tone 8 9 8 7 Keeping Frequency Ratio Constant 2 Channe...

Страница 208: ...sweep P 8 7 2 channel coordination operation function with constant frequency difference The frequency can be changed with the frequency difference kept constant This function controls to keep the fr...

Страница 209: ...To copy all parameters select All Parameters Otherwise select parameters for each oscillation mode There are the following four types of parameters as parameters for each oscillation modes continuous...

Страница 210: ...Parameters Sweep Parameters and Burst Parameters is not equivalent to copying All Parameters The following items are copied only when copying All Parameters Output on off state Oscillation mode Exter...

Страница 211: ...n off burst trigger sweep start stop operation This function is enabled until the 2 channel equivalence setting function is reset to off To turn on off 2 channel equivalence setting function Turning o...

Страница 212: ...s the synchronization relationship If necessary make a synchronous operation accordingly Operational restrictions There are restrictions shown in the following table to the synchronous operation The s...

Страница 213: ...ference channel for example channel 1 to 0 degree and change only the phase setting of the channel 2 At this time the phase setting of the channel 2 is a phase of the channel 2 based on the channel 1...

Страница 214: ...ting is independent for each CH PWM Both CHs are PWM Modulation setting is independent for each CH Sweep oscillation mode Frequency Sweep Both CHs are frequency sweep Sweep function sweep range sweep...

Страница 215: ...and gated single sweep Selecting 2 channel coordination To set the frequency difference In the Utility screen set Channel Mode to 2Tone Indep is normally set This makes the channel mode an oscillatio...

Страница 216: ...e frequency difference Sweep function sweep time and sweep mode are common Gated single sweep unavailable Single sweep trigger source and sweep internal trigger oscillator are common External trigger...

Страница 217: ...nation To set the frequency ratio In the Utility screen set Channel Mode to Ratio Indep is normally set This makes the channel mode an oscillation with constant frequency ratio The frequency ratio bet...

Страница 218: ...ndent for each CH Sweep oscillation mode Frequency sweep Both CHs are frequency sweep Sweep range follows the frequency ratio Sweep function sweep time and sweep mode are common Gated single sweep una...

Страница 219: ...tem Restriction Modulated oscillation mode Modulation source can be set to internal for FM PM AM AM SC OFSM and PWM Modulation source can be set to internal or external for FSK or PSK Sweep oscillatio...

Страница 220: ...tput including DC it is possible to obtain the double amount of output voltage however the output impedance is 100 Selecting 2 channel coordination Operational restrictions The restrictions are the sa...

Страница 221: ...WF1967 WF1968 9 1 9 Synchronizing Multiple Units 9 1 Connection Procedure 9 2 9 2 Performing Synchronization 9 4...

Страница 222: ...its However in addition to the coaxial cable T type divider and 50 terminating resistor are required The connection method 2 is easy to connect because it can make the connection using only coaxial ca...

Страница 223: ...reference input for the next slave unit Time difference between slave units varies depending on the delay within units approximately 25ns and connection cable length approximately 5ns m The maximum n...

Страница 224: ...use the external for the frequency reference for the master unit enable the external frequency reference in the Utility screen set the external reference to Enable P 10 4 Slave unit Select 2 channel i...

Страница 225: ...unit or between slave units is removed If you change the setting of channel mode or external frequency reference the synchronization relationship is lost Operational restrictions There are restriction...

Страница 226: ...9 2 Performing Synchronization WF1967 WF1968 9 6 MEMO...

Страница 227: ...WF1967 WF1968 10 1 10 Using External Frequency Reference 10 1 Purpose of Using External Frequency Reference 10 2 10 2 Connection and Usage Procedure of External Frequency Reference 10 2...

Страница 228: ...l 10MHz signal to the external 10MHz frequency reference input 10MHz REF IN BNC terminal on the rear panel WF1967 WF1968 Input characteristics are as follows Input voltage 0 5Vp p to 5Vp p Maximum all...

Страница 229: ...s multiple BNC connectors that are connected to a common ground If such a high voltage is applied the internal voltage limiting elements will try to reduce the voltage but a too high voltage may cause...

Страница 230: ...using the signal input to the external 10 MHz frequency reference terminal as the frequency reference If the external frequency reference signal breaks on the way the frequency reference is automatica...

Страница 231: ...In Step Processing Flow 11 12 11 4 Setting and Operation Procedure 11 13 11 5 Saving Created Sequence 11 17 11 6 Using the Saved Sequence 11 19 11 7 Deleting the Saved Sequence 11 20 11 8 Outline of...

Страница 232: ...e sequence ends In this case the system waits for the sequence to start in the state of DC 0V Time and Action are enabled only when the sequence is stopped They will be explained later Step 1 When the...

Страница 233: ...e StepTerm is set to Continue the sequence moves to Step 4 when resume operation is performed Step 0 Since Time is set to 5 seconds Offset is set to 0V and Action of Offset is set to Sweep the output...

Страница 234: ...rameters and intra step channel parameters Sequence oscillation has the following two main types of parameters Step control parameters Sequence oscillation consists of multiple steps linked to each ot...

Страница 235: ...enerated internally the value set in the reference phase in the phase Phase will be output are added Reference phase frequency amplitude offset phase changes in a continuous even if the change Also ex...

Страница 236: ...n to the next step with a continuous phase regardless of the stop phase setting The following figures show the example in which the stop phase is specified and in which it is not specified when the ph...

Страница 237: ...e next step after approximately 350ns equivalent to 0 126 in 1kHz has elapsed from the specified stop phase Previous step Previous step Next step Next step End of step time End of step time Waiting fo...

Страница 238: ...the phase is set to 0 oscillation starts from 0 The following figures show the examples of when the phase is set to 0 and when the phase is set to 90 where the step after DC is sine wave g Frequency...

Страница 239: ...0 is also the state at the end of sequence When the mode changes from the normal oscillation mode to the sequence oscillation mode the status changes to the Step 0 output status Since this is a speci...

Страница 240: ...eforms becomes smaller The following table shows the memory size that can be allocated to each waveform Waveform Size Size adjustment DC 0W Fixed Square wave 0W Fixed Sine wave 4KiW 512KiW 1MiW power...

Страница 241: ...i I O connector set to Enable When the multi I O connector is not used disable this setting set to Disable P 11 16 Allocation of the pin 14 of multi I O connector Multi I O pin14 Pin 14 of the multi I...

Страница 242: ...on the state branch signal is checked after the specified step time has elapsed excluding the time being held If the auto hold setting is on the sequence waits in the final state of the step until res...

Страница 243: ...ontents of the selected step are output In the sequence creating editing screen Edit is displayed at the top right corner of the screen The soft key items in the sequence creating editing screen are a...

Страница 244: ...ut range setting is performed to make the sequence executable Ready As a result of compilation when any setting not preferable for execution is found an error message is displayed When the compilation...

Страница 245: ...fied step g Terminating the sequence Press the Stop soft key in the Run or Hold status to terminate the sequence The sequence moves to Step 0 Rdy is displayed at the top right corner of the screen The...

Страница 246: ...g a sequences Falling input in the Run or Hold status ends the sequence and switches to Step 0 Holding resuming sequences Falling input in the Run status pauses the sequence Rising input during pause...

Страница 247: ...of the screen and press the ENTER key to switch the saving location Select a desired sequence number from 1 to 10 and press the OK soft key The sequence being edited at the moment is copied to the bui...

Страница 248: ...ft key to rename the file folder When you press the NewFolder button and press the ENTER key the dialog box appears where you can specify the name of a new folder you create Enter the name and press t...

Страница 249: ...e used 1 Press the Recall soft key in the Edit status to switch to the screen for recalling the saved sequence 2 Select USB tab at the left bottom side of the screen and press the ENTER key to switch...

Страница 250: ...also initialized to seq01 to seq10 11 7 2 Deleting from the USB Flash Memory USB interface in use USB memory cannot be used 1 In the Edit state and press the Store soft key to switch to the screen fo...

Страница 251: ...displayed simultaneously 2 channel simultaneous display Dual WF1968 only The intra step channel parameters of one step are displayed for two channels simultaneously For the step control parameters on...

Страница 252: ...e setting PRM and SCL displayed in the trace settings indicate the display item and the height of the trace frame respectively OFS indicates the bottom value of the trace frame for frequency amplitude...

Страница 253: ...is is set to on it is possible to specify the number of jumps to the step specified with JumpTo jump destination When this is set to Inf jump is repeated for infinite number of times Note that the num...

Страница 254: ...the required portions Creating a multiplex loop by inserting steps to connect the step patterns Step L JumpTo Off Continue Step M JumpTo L JmpCnt 9 999 Continue 9 999 Step M 1 Time 0 1ms JumpTo L Jmp...

Страница 255: ...WF1967 WF1968 12 1 12 Using User defined Units 12 1 About User defined Unit 12 2 12 2 Display and Setting in User defined Unit 12 2 12 3 Defining User defined Units 12 3...

Страница 256: ...them like the usual units In this product these units are called user defined unit The user defined unit can be used for the following six parameters Frequency period amplitude DC offset phase and dut...

Страница 257: ...p to 4 characters Enter a character one by one at the cursor position using the up down arrow key the modify knob or the numeric keypad Formula Form Select either one of h n m or log h n m as the unit...

Страница 258: ...log Multiplier and offset of formula m n Select the multiplier m and offset n in the selected formula After setting each parameter select OK at the bottom of the window and press the ENTER key To set...

Страница 259: ...g Remote Interface Remote 13 2 13 2 Display Setting Display 13 2 13 3 Modify Knob and Modify Direction Setting Modify Direction 13 2 13 4 Operation Sound Setting Sound 13 3 13 5 Self Diagnosis Self Ch...

Страница 260: ...lect GPIB set GPIB address within the range of 0 to 30 When you select LAN MAC address and port address are displayed Set IP address subnet mask and default gateway Set the brightness of backlight You...

Страница 261: ...e the check stops the oscillation and turns off the output it is recommended to initialize the setting by Reset in advance P 4 23 Before check remove all cables other than the power cable from this pr...

Страница 262: ...13 6 Product Information Display Information WF1967 WF1968 13 4 MEMO...

Страница 263: ...essages at Power on 14 2 14 2 Error Messages during Operation 14 3 14 3 Conflict Messages for Modulation 14 7 14 4 Conflict Message for Sweep 14 8 14 5 Conflict Message for Burst 14 9 14 6 Sequence Co...

Страница 264: ...trument ROM error This is an internal memory error This is a failure of this instrument Last shutdown caused by overheat The last power off was caused by internal overheat Check the operating environm...

Страница 265: ...When the channel mode is 2 phases constant frequency difference or constant frequency ratio the modulation source for FM and FSK is limited to internal The other types of source are not affected by th...

Страница 266: ...too wide Amplitude may decrease or pulse may be lost This event happens when the pulse width of a square wave with extended duty variable range is narrower than 8 4ns on the low or high side 22036 Fre...

Страница 267: ...r source of CH1 in the following conditions CH1 and CH2 have the same sweep type CH1 and CH2 are in the same sweep mode except for Cont CH1 and CH2 are in the same burst mode except for auto burst 230...

Страница 268: ...et to the upper limit 61058 Zero data not allowed Zero cannot be set in this parameter 61059 Invalid operation This operation is invalid You are trying to insert a control point into the impossible pl...

Страница 269: ...onnector is currently used for external addition It cannot be used for external modulation Turn the external addition function off Modulated peak or bottom value out of range The carrier value the dev...

Страница 270: ...r the frequency Gated sweep not available for DC Gated sweep is not available for DC waveform Change the sweep mode to continuous or single Start value out of range The start value is beyond the allow...

Страница 271: ...opriate setting conflict state They describe the improper settings BrstMode not compatible with current Function The burst oscillation mode is not adequate for the current waveform For example trigger...

Страница 272: ...he frequency and duty of the square wave do not satisfy mutual restriction in step M of channel N The frequency is set at step K and the duty is set at step L Lower the frequency or bring the duty clo...

Страница 273: ...added Make the DC offset to 0V 4 4 9 To Set DC Offset P 4 35 A user defined unit is used Select a standard unit 4 4 8 To Set Amplitude P 4 33 The load impedance function is used Change the setting to...

Страница 274: ...14 7 Suspected Failure WF1967 WF1968 14 12 MEMO...

Страница 275: ...WF1967 WF1968 15 1 15 Maintenance 15 1 Outline 15 2 15 2 Operation Inspection 15 4 15 3 Performance Test 15 5...

Страница 276: ...r If this fails to remedy the problem NF Corporation will investigate the cause of the problem and repair it This Instruction Manual describes the operation inspection and the performance testing meth...

Страница 277: ...er Accuracy 0 1ppm Agilent 53131A Opt 010 highly stabilized TB Measurement of frequency duty time interval between channels Oscilloscope BW 300MHz or greater 2GS s 50 input Agilent DSO6032A Measuremen...

Страница 278: ...ity screen Then connect the FCTN OUT to the oscilloscope using characteristic impedance 50 series coaxial cable and observe the output Change following settings several times and check they work prope...

Страница 279: ...cified set the input impedance for connecting instruments to 50 For instruments that cannot be set to 50 input install 50 terminator feed through terminator at the input of the instrument Measure a si...

Страница 280: ...DC only Connection FCTN OUT Digital multi meter DC voltage measurement Setting Set the waveform to DC after setting initialization The following table shows the DC offset Measurement Measure the outp...

Страница 281: ...amplitude setting it is normal when the measurement error for each frequency based on the measurement values at 1kHz falls within the range of the following table The line at right end of the table i...

Страница 282: ...ment range at 10Vp p and 5MHz is 0 1dB to 0 2dB Amplitude setting Value at 50 load Measured value at 100kHz Error at 1MHz Error at 5MHz Error at 10MHz 10Vp p Reference value X1 0 15dB X1 0 15dB X1 0 2...

Страница 283: ...N OUT Spectrum analyzer Use a coaxial cable Measure a signal up to approx 24dBm Use a coaxial attenuator separately not to exceed the allowable input of the spectrum analyzer Setting The following tab...

Страница 284: ...quare and the amplitude to 20Vp p open after setting initialization The following table shows the duty variable range setting the frequency setting and the duty setting Measurement Set the universal c...

Страница 285: ...2 50 termination Use coaxial cables whose length and kind are same Setting Set the channel mode to 2PHASE amplitude to 20Vp p open phase of CH2 to 180deg and frequency to 10MHz after setting initializ...

Страница 286: ...15 3 Performance Test WF1967 WF1968 15 12 MEMO...

Страница 287: ...WF1967 WF1968 16 1 16 List of Initial Settings...

Страница 288: ...y and amplitude range Normal FS Frequency 1kHz Amplitude 0 1Vp p DC offset 0V Range Auto Load impedance Open Phase 0 Output Off Noise bandwidth 30MHz Waveform Square wave duty Standard range 50 Pulse...

Страница 289: ...vel Off 0 External control input Disabled Oscillation stop unit when gated single Cycle Synchronization sub output Sweep synchronization marker on Burst Burst mode Trigger burst Mark wave number 1 0 S...

Страница 290: ...settings Output at power on Off Display Dark color Modify direction Downward by turning CW Operation sound On Following items are initialized every time the power is turned on Sequences Start step 1...

Страница 291: ...scillation Mode 17 11 17 7 Sweep Oscillation Mode 17 14 17 8 Burst Oscillation Mode 17 18 17 9 Synclator Function 17 19 17 10 Trigger 17 20 17 11 Sequences 17 21 17 12 Other I Os 17 22 17 13 2 Channel...

Страница 292: ...es Sine square pulse ramp parameter variable only main output noise gauss distribution DC Polarity only main output Normal invert Switch Except for DC Amplitude range only main output FS 0 FS 0 FS swi...

Страница 293: ...70MHz Pulse wave 0 01 Hz to 70MHz 3 Ramp wave 0 01 Hz to 20MHz 4 Parameter variable waveform 0 01 Hz to 20MHz 5 Noise Equivalent bandwidth Select from 100M 30M 10M 3M 1M 300k 100kHz DC Frequency sett...

Страница 294: ...to the main output except section 17 4 5 17 4 1 Amplitude Setting range 0Vp p to 20Vp p open 0Vp p to 10Vp p 50 A peak value combining waveform amplitude and DC offset is limited to 10V open or less...

Страница 295: ...mplitude resolution is reduced 17 4 2 DC Offset Setting range 10V open 5V 50 A peak value combining waveform amplitude and DC offset is limited to 10V open or less With frequency exceeding 110MHz the...

Страница 296: ...when the oscillation frequency exceeds 160MHz Sub waveform Analog waveform output synchronized with the main output Phase is variable to the reference phase synchronization signal and the amplitude a...

Страница 297: ...mVp p to 10Vp p 50 for more than 100MHz 50mVp p to 2Vp p 50 DC offset setting 0V auto range external addition off effective value measurement and reference frequency 1kHz Total harmonic distortion 1 2...

Страница 298: ...s narrower than 2 4ns pluses may disappear However when the frequency is not 1 integer of 420MHz it becomes equal to the specified duty on average When it is 1 integer up to approx 2 4ns of inaccuracy...

Страница 299: ...it of time setting Upper limit s period leading time trailing time 0 85 Lower limit s leading time trailing time 0 85 Upper and lower limits of duty setting are computed by the upper and lower values...

Страница 300: ...d sine Staircase sine Multiple cycle sine b Transient sine group On phase controlled sine Off phase controlled sine Chattering on sine Chattering off sine c Pulse group Gaussian pulse Lorentz pulse Ha...

Страница 301: ...ternal modulation of FSK and PSK uses an external trigger input terminal When the burst function is used simultaneously FSK and PSK cannot be selected in the mode other than auto burst Internal modula...

Страница 302: ...tput for high level input When the polarity is set as negative the other way around In the PSK modulation when the polarity is set as positive the steady phase is output for low level input and the ph...

Страница 303: ...ceeds 160MHz 17 6 4 PM Carrier waveform Standard waveforms except for noise and DC and arbitrary waveforms Peak deviation setting range 0 000 to 180 000 resolution 0 001 Carrier phase peak deviation i...

Страница 304: ...y waveforms Peak deviation setting range 0V 10V open Peak deviation setting resolution 499 9mV or less 4 digits or 0 1mV 0 5V or more 5 digits or 1mV 17 6 8 PWM Carrier waveform Square wave and pulse...

Страница 305: ...sweep and gated single sweep Internal external input terminal switch In addition CH2 can select the same trigger source as CH1 Common regardless of sweep type Trigger delay setting is disabled Manual...

Страница 306: ...ulti I O connector MULTI IO is used Enable disable switch In WF1968 it allows shares by both channels and settings on each channel Start Starts sweep from beginning by falling input Stop Stops sweep b...

Страница 307: ...DC and arbitrary waveforms Setting range of start and stop phase 1800 000 to 1800 000 resolution 0 001 17 7 4 Amplitude Sweep Waveform Standard waveforms except for DC and arbitrary waveforms Setting...

Страница 308: ...de Auto burst Repeats oscillating the number of mark wave and stopping the number of space wave Trigger is disabled Trigger burst Oscillates the number of mark wave in synchronization with trigger Gat...

Страница 309: ...ion 5 digits or 0 1 s Burst external trigger input used except for auto burst Polarity Positive negative disabled switch Input connector External trigger input terminal TRIG IN Input signal and input...

Страница 310: ...it will not become the same phase with 0 setting Limitations Not available for the FM PSK FSK frequency sweep and burst except auto and when the waveform is noise DC and pulse Not available together w...

Страница 311: ...ared Step control parameters Step time hold operation jump destination jump count step end phase branch operation step termination control step synchronization code output Channel parameter in steps W...

Страница 312: ...epend on external trigger input specification Limitations Used with synclator function is not available 17 12 Other I Os External 10 MHz frequency reference input Select frequency reference Enabled an...

Страница 313: ...and the same sweep type for sweep oscillation Apply to the standard waveform except for noise and DC and arbitrary waveform Keep the same frequency also for frequency sweep internal frequency modulati...

Страница 314: ...n External modulation is not allowed Burst and gated single sweep are not allowed External addition is not allowed Differential output2 Same as differential output but DC is reversed polarity When the...

Страница 315: ...method 1 6 units including master unit Connection method 2 4 units including master unit Phase synchronization operation Manual operation Time difference between unit Delay of each channel against ea...

Страница 316: ...d If the mode was sequence when the power was turned off the sequence mode and the sequence execution state can be automatically restored Power off with shutting down a line The contents of setting me...

Страница 317: ...b output SYNC SUB OUT external modulation addition input MOD ADD IN are insulated from the enclosure These signal grounds are shared in the same channel The signal ground for the external 10MHz freque...

Страница 318: ...rage requirements 10 to 50 C 5 to 95 RH Where absolute humidity is 1 to 29g m3 non condensing Warm up time 30 minutes or more typ Pollution degree 2 Outline dimension 216 W x 132 5 H x 332 D mm withou...

Страница 319: ...al drawing WF1967 Surface treatment Front panel Plastic sheet black Frame Grayish blue metallic paint Cover Graying blue metallic leather tone paint When the stand is used Side view Front view Cover s...

Страница 320: ...ensional drawing WF1968 Surface treatment Front panel Plastic sheet black Frame Grayish blue metallic paint Cover Graying blue metallic leather tone paint When the stand is used Side view Cover surfac...

Страница 321: ...ld it only with the rack mount adapters Be sure to hold the main unit with brackets or shelves on the rack side Space of 5 mm or more is required above the upper surface When installing the unit to th...

Страница 322: ...the main unit with brackets or shelves on the rack side Space of 5 mm or more is required above the upper surface When installing the unit to the rack attach a blank panel etc on the panel side of the...

Страница 323: ...t dimensional drawing JIS for 1 unit Surface treatment Rack mount adapters Metallic gray paint Caution When mounting the unit in the rack do not hold it only with the rack mount adapters Be sure to ho...

Страница 324: ...ack mount adapters Metallic gray paint Caution When mounting the unit in the rack do not hold it only with the rack mount adapters Be sure to hold the main unit with brackets or shelves on the rack si...

Страница 325: ...to return the product to purchaser This warranty shall not apply to any defect failure or damage caused by improper use improper or inadequate maintenance and care or modified by purchaser or personne...

Страница 326: ......

Страница 327: ...ided in this manual is intended to be accurate and reliable However we assume no responsibility for any damage regarding the contents of this manual We assume no responsibility for influences resultin...

Страница 328: ......

Страница 329: ......

Страница 330: ...ohoku ku Yokohama223 8508JAPAN nbn nbn at www nbn at Tel 43 316 402805 Fax 43 316 402506 Riesstra e 146 8010 Graz nbn Austria GmbH Aufgrund laufenderWeiterentwicklungen sind nderungen der Spezifikatio...

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