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Operator's Manual

IEW

EGMENT

ATH

UNCTION

Besides using the Zoom feature, you can also create a Math (F

) trace to display individual segments.

1. From the menu bar, choose

Math

→

Math Setup...

2. Touch a

Function (F

) tab

to display its corresponding dialog.

3. On the dialog, touch

Operator1

and select the

Segment

button from the pop-up menu.

4. Touch the

Select

right-hand dialog tab.

5. Touch

First Selected

and choose the first segment to display.

6. Touch

Number of Selected

and enter the number of segments to display at once.

IEW

EGMENT

IME

TAMPS

To view time stamps for each segment:

1. From the menu bar, choose

Timebase

→

Acquisition Status

Vertical

→

Channel Status

2. Touch the

Trigger Time

tab.

3. Under

Show Status For

, choose

Time

4. In

Select Segment

, enter the segment number of interest.

You can also touch the Up/Down Arrow buttons to scroll through segment times.

Clock Source Settings

Sample Clock

These settings determine the clock that controls when the oscilloscope's digitizers sample the input
waveforms. The default setting is to use the oscilloscope's

Internal

clock. To use an external sample

clock:

1. Connect the clock source to the

Ext

input on the front of the oscilloscope using a BNC cable.

2. Go to

TImebase > Horizontal Setup

and choose

Real-time Sampling Mode

3. On the

Clock Source tab

under

Sample Clock

choose from 0V, ECL, TTL.

4. Choose an

External Coupling

of 50 Ohms, Ground, or 1 M Ohm.

Reference Clock

These settings control the Timebase reference used to synchronize acquisition across all channels. The
default setting is to use the oscilloscope's

Internal

10 MHz clock. To use an external reference clock:

1. Connect the clock source to the

Ref In/Out 10 MHz

input on the back of the oscilloscope using a BNC

cable.

2. Go to

Timebase > Horizontal Setup

and choose

Real-Time Sampling Mode

3. On the

Clock Source tab

under Reference Clock choose

External

922499 Rev B

Содержание HDO6000

Страница 1: ...Operator s Manual HDO6000 High Definition Oscilloscopes ...

Страница 2: ...bited However clients are encouraged to distribute and duplicate Teledyne LeCroy documentation for their own internal educational purposes HDO6000 and Teledyne LeCroy are trademarks of Teledyne LeCroy Inc Other product or brand names are trademarks or requested trademarks of their respective holders Information in this publication supersedes all earlier versions Specifications are subject to chang...

Страница 3: ...play Grid 10 Descriptor Boxes 11 Dialogs 13 Shortcut Toolbar 13 Control Application Window 13 Enter Select Data 14 Annotate Traces 16 Print Screen 17 Screen Saver 17 Front Panel 18 Front Panel Trigger Controls 19 Front Panel Horizontal Controls 19 Front Panel Vertical Controls 20 Front Panel Math Zoom and Mem ory Buttons 20 Front Panel Cursor Controls 20 Front Panel Adjust and Intensity Controls 2...

Страница 4: ... Lines 33 Timebase 34 Timebase Settings 34 Sampling Modes 35 Clock Source Settings 39 Auto Setup 40 Restore Default Setup 40 Trigger 41 Trigger Modes 41 Trigger Types 42 Trigger Settings 43 Trigger Holdoff 44 Software Assisted Trigger 46 TriggerScan 47 Display 49 Display Setup 49 Moving Traces from Grid to Grid 49 XY Displays 50 Persistence Overview 50 Cursors 53 Cursor Types 53 Cursor Settings 54...

Страница 5: ...3 View Persistence Histogram 84 Track and Trend 85 WaveScan 87 History Mode 92 Pass Fail Testing 93 View Configurations 96 Utilities 97 Utilities Settings 97 System Status 98 Remote Control Settings 98 Print Hardcopy Settings 100 Auxiliary Output Settings 102 Date Time Settings 103 Disk Utilities 104 Preferences Settings 105 Calibration Settings 106 Acquisition Settings 107 Color Settings 108 E Ma...

Страница 6: ...leaning 122 Calibration 122 Touch Screen Calibration 122 Language Selection 122 Add Software Option 123 X Stream Firmware Update 124 HDO System Recovery 125 Technical Support 127 Returning a Product for Service 128 Contact Teledyne LeCroy 129 Certifications 130 EMC Compliance 130 Safety Compliance 131 Environmental Compliance 132 ISO Certification 132 Warranty 132 Windows License Agreement 133 iv ...

Страница 7: ... software options is available from the Teledyne LeCroy website at teledynelecroy com Our website maintains the most current product specifications and should be checked for frequent updates Remember When your product is delivered verify that all items on the packing list or invoice copy have been shipped to you Contact your nearest Teledyne LeCroy customer service center or national distributor i...

Страница 8: ...HDO6000 High Definition Oscilloscope vi 922499 Rev B ...

Страница 9: ...grounded through the power cord grounding conductor To avoid electric shock connect only to a grounded mating outlet Connect and disconnect properly Do not connect disconnect probes or test leads while they are connected to a voltage source Observe all terminal ratings Do not apply a voltage to any input C1 C2 C3 C4 or EXT that exceeds the maximum rating of that input Refer to the front of the osc...

Страница 10: ...an speed based on the ambient temperature This is performed automatically after start up Power AC Power The instrument operates from a single phase 100 to 240 Vrms 10 AC power source at 50 60 400 Hz 10 Manual voltage selection is not required because the instrument automatically adapts to the line voltage Power Consumption Maximum power consumption with all accessories installed e g active probes ...

Страница 11: ...e LeCroy customer service center or national distributor if anything is missing or damaged We can only be responsible for replacement if you contact us immediately Carrying and Placing the Oscilloscope The oscilloscope s case contains a built in carrying handle Lift the handle away from the oscilloscope body grasp firmly and lift the instrument Always unplug the instrument from the power source be...

Страница 12: ...ailed instructions are provided later in this manual POWER Connect the line cord rated for your country to the AC power inlet on the back of the instrument then plug it into a grounded AC power outlet See Power and Ground Connections in General Safety Information LAN Connect a cable from either Ethernet port on the side panel to a network access device On the oscilloscope use the standard Windows ...

Страница 13: ...t down process and preserve settings before powering down Pressing and holding the Standby button will execute a hard shutdown the same as on a computer but we do not recommend doing this because it does not allow the Windows operating system to shut down properly Do not power off by pulling the power cord from the socket or shutting off a connected power strip without first shutting down properly...

Страница 14: ...erminals are used to compensate passive probes E Two 2 front mounted host USB ports can be used for transferring data or connecting peripherals such as a mouse or keyboard Side Input Output Panel A Video Output VGA DVI and HDMI ports connect the oscilloscope to external monitors B USB Ports 4 allow you to connect external USB devices such as storage drives C Ethernet Ports 2 connect the oscillosco...

Страница 15: ...ential probes ProBus also includes sense rings for detecting passive probes The ProBus interface may also have a BNC terminated cable connected directly to it The interfaces power probes and completely integrate the probe with the oscilloscope channel Upon connection the probe type is recognized and some setup information such as input coupling and attenuation is performed automatically This infor...

Страница 16: ...nnect the leadset to the oscilloscope push the connector into the mixed signal interface below the front panel until you hear a click To remove the leadset press in and hold the buttons on each side of the connector then pull out to release it Grounding Leads Each flying lead has a signal and a ground connection A variety of ground extenders and flying ground leads are available for different prob...

Страница 17: ...for you The touch screen is divided into the following major control groups Menu Bar The top of the screen contains a complete menu of oscilloscope functions Making a selection here changes the dialogs displayed at the bottom of the screen Many common oscilloscope operations can also be performed from the Front Panel or launched via the Descriptor Boxes However the menu bar is the best way to acce...

Страница 18: ...le Manually move traces from grid to grid by activating the trace and touching the Next Grid shortcut button Of special note you can also move a trace to another grid by dragging its descriptor box to the desired grid Different types of traces opening in separate grids Adjusting Grid Brightness You can adjust the brightness of the grid lines to make either the grid or traces more visible Go to Dis...

Страница 19: ...p up menu with shortcuts to the appropriate trace setup dialog or the Math and Measure setup dialogs You can also use it to turn off the trace or place an annotation label on it Descriptor Boxes Shown just beneath the grid display these boxes provide a summary of your channel timebase and trigger settings They also act as convenient navigation tools Descriptor boxes appear when a trace is turned o...

Страница 20: ...illoscope Like Channel descriptors they are numbered 1 4 corresponding to one of the four line groups They show the number of digital lines in the group the digital sample rate and the digital memory Timebase Descriptor Box The TimeBase descriptor box shows clockwise from top right Trigger Delay position Time div Sample Rate Number of Samples and Sampling Mode blank when in real time mode Trigger ...

Страница 21: ... location C1 F1 and Z1 to M1 C2 F2 and Z2 to M2 etc Find Scale Automatically performs a vertical scaling that fits the waveform into the grid Next Grid Automatically moves the active trace to the next grid If you have only one grid displayed a new grid will be created automatically and the trace moved Label Opens the Label pop up to annotate the active trace The following buttons appearing at the ...

Страница 22: ...using the Front Panel Adjust knob If you have a keyboard installed you can type your entry in the active field Or you can touch again then select your entry from the pop up menu or keypad You ll see a pop up keypad when you double touch a numerical data entry field Touch the soft keys to use it exactly as you would a calculator When you touch OK the calculated value is entered in the field Touch D...

Страница 23: ... of values You can also use scroll bars or Up Down arrow keys to navigate to the desired value Stylus Use the stylus when you want a more precise selection tool than your finger It is especially helpful for selecting exact areas of the grid or values that lie close together on pop up menus 922499 Rev B 15 ...

Страница 24: ... Enter the Label Text 4 Optionally enter the Horizontal Pos and Vertical Pos at which to place the label The default position is 0 ns horizontal You can optionally check Use Trace Vertical Position instead of entering a Vertical Pos 5 Close the dialog Edit Remove Label 1 Touch the label and choose Set Label from the pop up menu 2 Select the Label number You can use the Up Down arrow keys to scroll...

Страница 25: ...h the Print button to the far right of the dialog NOTE The Front Panel Print button can be configured to capture the screen as a LabNotebook entry In this case only the File and Utilities menu print options will function according to your Hardcopy setup Screen Saver The screen saver is activated the same as on any Windows PC Minimize the instrument display by choosing File Minimize from the menu b...

Страница 26: ...commonly used functions Other shortcut buttons arranged across the bottom open special applications All the knobs on the Front Panel function one way if turned and another if pushed like a button The top label describes the knob s principal turn action and the bottom label describes its push action Front panel buttons light up to indicate which traces and functions are active Actions performed fro...

Страница 27: ... meets the trigger conditions set for the type of trigger selected If the scope is already armed it will force a trigger Stop Prevents the scope from triggering on a signal If you boot up the instrument with the trigger in Stop mode a No trace available message is shown Press the Auto button to display a trace Front Panel Horizontal Controls The Horizontal Front Panel group corresponds to the Time...

Страница 28: ...l that trace Front Panel Cursor Controls Cursors identify specific voltage and time values on the waveform The white cursor lines help make these points more visible as well as provide a simple way to reposition them A readout of the values appears on the trace descriptor box There are five preset cursor types each with a unique appearance on the display Horizontal Time Horizontal Vertical Vertica...

Страница 29: ...ets the oscilloscope to the factory default configuration Print Captures the entire screen and outputs it according to your Hardcopy settings It can also be configured to output a LabNotebook entry Touch Screen Enables or disables touch screen functionality Clear Sweeps Resets the acquisition counter and any cumulative measurements Bottom Row Decode Opens the Serial Decode dialog if you have seria...

Страница 30: ...tcut button at the bottom of the dialog You can also use the Front Panel Zoom Math or Mem ory buttons to quickly create traces The Zoom control automatically creates zoom trace s that are 1 10 of the original waveform s The middle of the grid is used as the center of the zoom trace Activate Trace A trace descriptor box appears on the display for each enabled channel digital zoom math or memory tra...

Страница 31: ...om To create a zoom touch and drag to draw a selection box around any part of the source waveform Selected portion of trace The zoom will resize the selected portion to fit the full width of the grid The degree of vertical and horizontal magnification therefore depends on the size of the rectangle that you draw The zoom opens in a new grid or the next empty grid with the zoomed portion of the sour...

Страница 32: ...shared with math and memory traces Turn off Zoom Turn off a zoom trace the same as you would any other trace l Deselect the Trace On checkbox on the Zoom dialog l Touch and hold right click the descriptor box until the pop up menu opens then choose Off Quick Zoom Use the Front Panel Zoom button to quickly create one zoom trace for each displayed channel trace NOTE Quick zooms are created at the sa...

Страница 33: ...hide the zoom Source lets you change the source for this zoom to any channel math or memory trace while maintaining all other settings Segment Controls These controls are used only in Sequence Sampling Mode Rescale Controls These controls on the Zx dialogs are the same used to rescale any trace and you will see them throughout the oscilloscope software They work the same wherever they appear Out a...

Страница 34: ...ce The same set of controls used to rescale zoom traces appear on the Zoom right hand dialog or on one of the trace setup dialogs This applies to any trace that is created as a math function Fx trace including those that are generated through analysis options You can however create a separate zoom trace from a memory or function trace by drawing a selection box around a portion of the waveform In ...

Страница 35: ...t Fast back in time Scroll Left Slow back in time Pause stop scrolling Scroll Right Slow forward in time Scroll Right Fast forward in time Jump to Start go to beginning of acquisition Jump to End go to end of acquisition In Out increase or decrease magnification level of zooms Var zoom In Out in finer increments than the default 1 2 5 10 steps Reset Zoom return all zooms to same scale as the sourc...

Страница 36: ... Channel dialog also contains a tab for the Probe dialog Vertical Settings Vertical Scale Set the vertical scale or sensitivity and choose fixed or variable gain adjustment Vertical Offset Select between zero vertical offset or to set the offset to a specific value Coupling Select from DC 50 Ω DC1M AC1M and GROUND CAUTION The maximum input voltage depends on the input used Limits are displayed on ...

Страница 37: ... when the sample rate is 3 to 5 times the system bandwidth Noise Filter ERes Enhanced Resolution ERes filtering increases vertical resolution allowing you to distinguish closely spaced voltage levels The tradeoff is reduced bandwidth The functioning of the instrument s ERes is similar to smoothing the signal with a simple moving average filter Use ERes on single shot waveforms or where the data re...

Страница 38: ...ric deskew procedure to compensate for propagation delays due to different lengths of cables probes or anything else that might cause timing mismatches between signals 1 Connect all probes to the desired channels then probe a common signal with each probe 2 Turn on two channels one of which will be the reference channel for the entire deskew procedure 3 Set an Edge trigger on the reference channel...

Страница 39: ... same as the physical lead they represent although any line number can be re assigned to any lead Digital Traces When a digital group is enabled digital Line traces show which lines are high low or transitioning relative to the threshold You can also view a digital Bus trace that collapses all the lines in a group into their Hex values Three Digital Line traces and a Bus trace displayed with a Ver...

Страница 40: ...onally rename them 4 Go on to set up the digital display for the group Check Group to enable the display 5 When you re finished on the Digital dialog touch the Logic Setup tab and choose the Logic Family that applies to each digital bank or set custom Threshhold and Hysteresis values Digital Display Set Up You can choose the type and position of the digital traces that appear on screen for each di...

Страница 41: ... and choose Off from the pop up menu Renaming Digital Lines The labels used to name each line can be changed to make the user interface more intuitive Also labels can be swapped between lines Changing Labels 1 Set up the digital group 2 Touch Label and select from l Data the default which appends D to the front of each line number l Address appends A to the front of each line number l Custom lets ...

Страница 42: ...elay The time relative to the trigger event to display on the grid In Real Time sampling mode the trigger event is placed at time zero on the grid Delay may be time pre trigger entered as a negative value or post trigger entered as a positive value Raising lowering the Delay value has the effect of shifting the trace to the right left enabling you to focus on the relevant portion of longer acquisi...

Страница 43: ...ent of 10 000 time divisions after the trigger event occurred When set to the maximum allowed post trigger delay the trigger point may actually be off the grid far to the left of the time displayed Usually on fast timebase settings the maximum sample rate is used when in Real Time mode For slower timebase settings the sample rate is decreased so that the maximum number of data samples is maintaine...

Страница 44: ... RIS sampling mode Sequence Sampling Mode In Sequence Mode the complete waveform consists of a number of fixed size segments see the instrument specifications at teledynelecroy com for the limits The oscilloscope uses the sequence timebase setting to determine the capture duration of each segment as 10 x time div With this setting the oscilloscope uses the desired number of segments maximum segmen...

Страница 45: ...strument gives you a choice of five ways to display your segments l Adjacent l Waterfall cascaded l Mosaic tiled l Overlay l Perspective NOTE some display modes have limitations on the number of segments that can be shown at one time 922499 Rev B 37 ...

Страница 46: ...erator controller without having to manually stop the acquisition 5 Touch Display mode and select a sequence display mode from the pop up menu 6 Touch the one of the Front Panel Trigger buttons to begin acquisition NOTE Once acquisition has started you can interrupt it at any time by pressing the Stop Front Panel button In this case the segments already acquired will be retained in memory VIEW SEG...

Страница 47: ...oll through segment times Clock Source Settings Sample Clock These settings determine the clock that controls when the oscilloscope s digitizers sample the input waveforms The default setting is to use the oscilloscope s Internal clock To use an external sample clock 1 Connect the clock source to the Ext input on the front of the oscilloscope using a BNC cable 2 Go to TImebase Horizontal Setup and...

Страница 48: ...ignal Vertical Scale V div Offset Timebase Time div and Trigger are set so that there is an Edge trigger on the first non zero level amplitude and the entire waveform is visible for at least 10 cycles over the 10 horizontal divisions To run Auto Setup you can either l Press the Auto Setup Front Panel button l Choose Auto Setup from the Vertical Timebase or Trigger menus All these options perform t...

Страница 49: ...gers that allow you to leverage parameter measurements as waveform trigger conditions A measurement trigger is either the only trigger or the final trigger in a chain of trigger events including hardware triggers l MultiStage Triggers varied forms of triggers including Cascaded QualFirst and Qualified allowing varied combinations of triggers and trigger stages l Serial Triggers provide triggers sp...

Страница 50: ...dware triggers TV triggers on standard PAL SECAM NTSC HDTV or custom composite video signals Smart Triggers Window triggers when a signal enters or exits a window defined by voltage thresholds Interval triggers upon finding a specific interval the time period between two consecutive edges of the same polarity positive to positive or negative to negative Use the interval trigger to capture interval...

Страница 51: ...arm can be Edge Pattern State or PatState events B trigger can be Edge or Pattern events Only available as a sub type of Qualified triggers PatState triggers when the qualifying signal goes above or below a specified voltage level You can specify the number of these events that must occur to trigger Serial Triggers Protocol enabled serial triggers are available as options on some oscilloscope mode...

Страница 52: ...odified Find Level where available this button sets the Level to the signal mean Trigger Holdoff Holdoff is an additional condition that may be set for Edge and Pattern triggers It can be expressed either as a period of time or an event count Holdoff disables the trigger temporarily even if the trigger conditions are met until the holdoff conditions are also met The trigger fires when the holdoff ...

Страница 53: ... trigger For example if the hold off number of Events is 2 counted from the beginning of the acquisition the trigger fires on the third event In the figure below the bold edges on the trigger source indicate that a positive slope has been selected The broken upward pointing arrows indicate potential triggers while the bold ones show where triggers actually occur after the holdoff expires Edge trig...

Страница 54: ...igned with the specified trigger level and slope Software Assisted Trigger provides a quick way to create eye diagrams NOTE This feature can only be used with an Edge trigger type in Normal trigger mode 1 From the menu choose Triggers Trigger Setup then touch the Software Assisted Trigger tab 2 Touch Enable 3 Create a trigger window by entering a Hysteresis value This value sets a boundary above a...

Страница 55: ...ts the current acquisition and automatically builds a list of trigger setups that could potentially be used to find events of interest NOTE Run the Trainer if you want to change the trigger types or if you change the channel or signal You must acquire and display at least 3 cycles of a signal before running the Trainer 1 Touch Trigger Trigger Setup from the menu bar then touch the TriggerScan tab ...

Страница 56: ...ainer pop up The oscilloscope automatically cycles through all the trigger setups NOTE l Use Dwell Time to tune the time that the oscilloscope waits before loading the next trigger l If you want TriggerScan to stop when the oscilloscope next triggers check the Stop On Trigger checkbox You can use this to isolate trigger setups l If you have Persistence enabled all trigger events are recorded on th...

Страница 57: ...rms may be hidden from view when the grid is placed on top To view them simply uncheck Grid on top 5 Optionally check Axis labels to display the values of the top and bottom grid lines calculated from volts div and the extreme left and right grid lines calculated from the timebase 6 Choose a line style for your traces solid Line or a disconnected series of sample Points 7 To highlight more frequen...

Страница 58: ... signal Use Persistence to accumulate on screen points from many acquisitions to see your signal change over time The instrument persistence modes show the most frequent signal path in three dimensional intensities of the same color or graded in a spectrum of colors You can show persistence for up to eight inputs for any channel math function or memory location M1 to M4 Persistence Mode The Persis...

Страница 59: ... 15 In the monochrome analog view the lightest areas indicate highest intensity corresponding to the red areas in the solid view The shaded projected light view emphasizes the shape of the pulses In the wire frame view lines of equal intensity are used to construct the persistence map Saturation Level Besides the different modes you can select a saturation level as a percentage of the maximum popu...

Страница 60: ...he channel trace over the persistence display If using 3d mode complete setup for 3 D persistence 6 Optionally also change Saturation level and Persistence Time and enable disable Dot Joined SET UP 3 D PERSISTENCE 1 Touch the 3d button and if necessary open the channel tab 2 Under 3D settings touch Quality and choose wire frame solid or shaded 3 Check MonoChrome if you prefer a single color repres...

Страница 61: ...n l Horizontal Rel displays two dashed vertical lines The readout depends on the Show option selected Vertical Amplitude cursors place horizontal lines through a point on the vertical axis to read the amplitude of the signal at that point The two types are l Vertical Abs displays a single dashed horizontal line The readout shows the absolute value at the cursor location l Vertical Rel displays two...

Страница 62: ... from the menu bar Cursors On displays or hide cursor lines When first checked the last selected cursor type is displayed Cursor Type buttons select the type of cursor displayed on the grid The Show controls determine which values appear on the trace descriptor box readout particularly when using relative cursors l Absolute shows specific voltages for the two cursor locations l Delta shows the dif...

Страница 63: ... performed only on the five pulses bounded by the gate posts The default starting positions of the gate posts are 0 div and 10 div which coincide with the left and right ends of the grid The gate therefore initially encloses the entire waveform The quickest way to set a gate is by dragging the gate posts located at the far left and right of the grid to the desired positions You can refine this set...

Страница 64: ...nt setup This fea ture available with the XWEB option allows you to chain practically unlimited math functions for operation on your waveform measurements 5 Touch Source1 and select the channel math trace memory trace or other waveform to be measured If using Math on Parameters choose the parameters rather than the source trace in Source1 and Source2 6 If you selected Measure On Waveforms touch th...

Страница 65: ...50 level of two sources Dperiod level dper lv Adjacent cycle deviation cycle to cycle jitter of the period measurement for each cycle in a waveform The reference level for this measurement can be specified Dtime level dt lv Computes the time between transitions of the selected sources at the specified levels Only positive going transitions are counted Dtrig Time dtrig Time from last trigger to thi...

Страница 66: ...gives the interpolated value When the Nearest point checkbox is checked it gives the vertical value of the nearest data point MATLAB Produces a parameter using a user specified MATLAB function Maximum max Measures highest point in waveform Unlike top does not assume waveform has two levels Mean Average of data for time domain waveform Computed as centroid of distribution for a histogram of the dat...

Страница 67: ...pulse waveform s rising transition from 20 to 80 of the amplitude averaged for all rising transitions between the measurement gates On signals not having two major levels triangle or saw tooth waves for example top and base can default to maximum and minimum giving less predictable results Rise level rise lv Rise at level Duration of pulse waveform s rising edges between user defined transition le...

Страница 68: ...ist of positive pulses and width the time between adjacent rising and falling edges Conversely if falling edge pulses are considered negative and width the time between adjacent falling and rising edges For both cases widths of all waveform pulses are averaged for the final result Width level wid lv Width measured at a user specified level WidthN widn Time of cyclic signal determined by examining ...

Страница 69: ...sweeps For any parameter that computes on every event the value displayed is equal to the number of events per acquired waveform If x waveforms were acquired the value represents x times the number of cycles per waveform The value last statistic is equal to the measurement of the last cycle on the last acquisition To reset the statistics counter touch Clear Sweeps on the display or Front Panel Vie...

Страница 70: ...OTE Unlike regular cursors which are white and can be moved help markers are blue and only augment the display they cannot be moved and they do not reset the measurement points Some optional analysis software packages include markers designed specially for that domain of reference which are documented in the option manual You also have the option by means of the Always On checkbox to leave the Hel...

Страница 71: ...ges give you the ability to constrain parameter measurements to a vertically or horizontally limited range or to occurrences gated by a second waveform Furthermore both constraints can operate together This capability enables you to exclude unwanted characteristics from your measurements It is much more restrictive than See Measure Gate on page 55 which is used only to narrow the span of analysis ...

Страница 72: ...ively you can apply mathematical functions for example invert to a single parameter measurement The setup for Math on Parameters is much like other custom parameter setup The only significant difference is the choice of Math on Parameters instead of Measure on Waveforms and the selection of source parameters instead of source traces There is added functionality for using custom scripts to calculat...

Страница 73: ...ly math to a single parameter for example Invert just select it in Source1 7 Check On to enable the new output parameter and add it to the display Using Scripts In addition to the arithmetic operations you can write your own VBScript or JavaScript to apply to one or two measurement parameters When setting up the output parameter choose the Math Operator P Script Scripting can be done in the Script...

Страница 74: ... call up an existing script from a file storage location If you create your script in this window you can export it to a new file Calculating Measurements Determining Top and Base Lines Proper determination of the top and base reference lines is fundamental for ensuring correct parameter calculations The analysis begins by computing a histogram of the waveform data over the time interval spanned b...

Страница 75: ...ld the rise or fall time These results are averaged over the number of transition edges that occur within the observation window Rising Edge Duration Falling Edge Duration Where Mr is the number of leading edges found Mf the number of trailing edges found the time when rising edge i crosses the x level and the time when falling edge i crosses the x level Determining Time Parameters Time parameter ...

Страница 76: ...transition polarity of the clock and data signals to be specified Moreover a hysteresis range may be specified to ignore any spurious transition that does not exceed the boundaries of the hysteresis interval In the figure Delta c2d 1 2 measures the time interval separating the rising edge of the clock trigger from the first negative transition of the data signal Similarly Delta c2d 1 2 measures th...

Страница 77: ...ions will be available when using Measure and Math dialogs Single vs Dual Operation Functions Single functions perform one operation on one or two input sources Dual functions chain two operations to arrive at a single result This saves you the effort of having to chain two separate math functions together As with single functions the number of sources required will vary based on the operation You...

Страница 78: ... f x or dual g f x operator function 4 Choose math Operator1 to perform 5 The choice of operator drives the number of Source fields you will see displayed Make a selection in each field A Summary of the function you are building appears on the dialog Refer to this to be sure your sources are in the proper order to yield the function you want e g C1 C2 vs C2 C1 6 If the operator you ve selected has...

Страница 79: ... the value For values less than zero the magnitude of this value without regard to its sign is used Average Calculates either a summed or continuous average of a selected number of sweeps See Averaging Waveforms The maximum number of sweeps is determined by the oscilloscope model and memory See the specifications at teledynelecroy com Copy Copies waveform in its unprocessed state to the first avai...

Страница 80: ... fall into each interval bin Integral Calculates the linearly rescaled integral with multiplier and adder of a waveform input starting from the left edge of the screen using the formula current sample value next sample value horizontal sample interval Each calculated area is summed with the previous sum of areas The multiplier and adder are applied before the integration function Interpolate Inser...

Страница 81: ...rce 2 Source1 and Source2 must have the same horizontal units and scale and the same vertical units Track Generates a waveform composed of parameter measurements that is time synchronous with the source waveform The vertical units are those of the source parameter value and the horizontal units are seconds Parameter values are posted at the sampling rate Trk Same as Track with alternate transition...

Страница 82: ...factor control and provide a Bandwidth Limit value 3 Touch the Sparsing offset control and provide a value Rescaling and Assigning Units This feature allows you to apply a multiplication factor a and additive constant b to your waveform aX b You can do it in the unit of your choice depending on the type of application Set Up Rescaling 1 Follow the usual steps to set up a math function selecting Re...

Страница 83: ...l Milliwatt RAD Radian DBV Decibel Volts DEG Degree of arc DBUZ Decibel Microamp MNT Minute of arc DEC Decade SAMPLE Sample DIV Divisions SWEEP Sweeps Event Events SEC Second of arc F Farad S Second G Gram SIE Siemens H Henry T Tesla HZ Hertz UI Unit interval J Joule V Volt K Degree Kelvin VA Volt amps CEL Degree Celsius W Watt FAR Degree Fahrenheit WB Weber L Liter MIN Min M Meter HOUR Hour FT Fo...

Страница 84: ...d dialog tab then touch bits and make a selection from the pop up menu How the Instrument Enhances Resolution The instrument s enhanced resolution feature improves vertical resolution by a fixed amount for each filter This real increase in resolution occurs whether or not the signal is noisy or your signal is single shot or repetitive The signal to noise ratio SNR improvement you gain is dependent...

Страница 85: ...mputation of the filtered waveform The filters have been given exact unity gain at low frequency Enhanced resolution should therefore not cause overflow if the source data is not overflowed If part of the source trace were to overflow filtering would be allowed but the results in the vicinity of the overflowed data the filter impulse response length would be incorrect This is because in some circu...

Страница 86: ...average has a random noise component lower than that of a single shot record Whenever the maximum number of sweeps is reached the averaging process stops In Summed averaging you specify the number of acquisitions to be averaged The averaged data is updated at regular intervals and presented on the screen An even larger number of records can be accumulated simply by changing the number in the dialo...

Страница 87: ...y 2nd sweep new average new data 1 old average 1 1 1 2 new data 1 2 old average 3rd sweep new average new data 2 old average 2 1 1 3 new data 2 3 old average 4th sweep new average new data 3 old average 3 1 1 4 new data 3 4 old average 5th sweep new average new data 4 old average 4 1 1 5 new data 4 5 old average 6th sweep new average new data 4 old average 4 1 1 5 new data 4 5 old average 7th swee...

Страница 88: ...effective sampling rate of the oscilloscope and therefore determines the frequency resolution and span at which spectral analysis can be carried out Set Up FFT 1 Follow the usual steps to set up a math function selecting FFT from the Frequency Analysis submenu 2 Open the FFT right hand dialog 3 Choose to either l trunc ate When the FFT transform size does not match the record length truncate the r...

Страница 89: ...ll spectral components while all side lobes should be infinitely attenuated The window type defines the bandwidth and shape of the equivalent filter to be used in the FFT processing Rectangular windows provide the highest frequency resolution and are thus useful for estimating the type of harmonics present in the signal Because the rectangular window decays as a sinx x function in the spectral dom...

Страница 90: ...n its unprocessed state to the first available memory location While processing may continue on the original waveform the copy enables faster throughput in some cases by preserving the original data That is no calculations need to be undone on the copy before additional math can be calculated This benefit of faster throughput however comes at the expense of memory usage Follow the ususal steps to ...

Страница 91: ...ormal measurements as indicated by whether or not they meet a set of defined criteria l WaveScan searches a single acquisition for events that meet specific criteria enabling you to zoom in on anomalies in the waveform or scans multiple acquisitions with allowable trigger actions when conditions are met It can also be used to filter measurements A variety of views help you under stand the behavior...

Страница 92: ...istence display which graphs a horizontal or vertical slice of a waveform NOTE This math operation is different than the Histogram math operation and is not affected by Center and Width settings made on any existing Histograms 1 Choose Math Math Setup from the menu bar to access the Math dialog 2 Touch an open Fx button and select Phistogram from the pop up menu 3 Touch the Fx tab to open the Func...

Страница 93: ...us stream of data spaced closely together To understand the change in a parameter with time Trend can be used if your data is spaced widely apart and longer than the dead time of the oscilloscope between acquisitions Think of Trend as a strip chart recorder for your oscilloscope View Track This procedure explains how to view the Track of a measurement parameter applied to a waveform A track is a w...

Страница 94: ...e trend plots measurement values the plot is drawn as a math function and controlled through the Math dialog 1 If you re not already on the Measure dialog choose Measure Measure Setup 2 Touch the Px tab for the parameter you wish to plot 3 Touch the Trend buttonat the bottom of the dialog and choose a math function Fx in which to draw the Trend The Trend is displayed in a new grid along with its f...

Страница 95: ... WaveScan Capture Search Make a single acquisition then use Measurement Mode to search for parameter measurements that fit your filter criteria Scan Set up the scan mode then scan for matching events across multiple acquisitions Customize the presentation by choosing different WaveScan display features or Scan Views Optionally set Actions to occur automatically when unusual events are found such a...

Страница 96: ...e A non monotonicity is detected only when its amplitude is greater than the hysteresis Therefore when setting a hysteresis level set a value that is greater than the amplitude of the noise Additional settings for Non monotonic Mode are l Slope choose Pos Neg or Both l Hysteresis is choose Division Percent Absolute l Division Percent Absolute enter the hysterisis level in the units you selected l ...

Страница 97: ...dels only is used for finding 2 to 16 bit patterns across the digital lines Additional settings for Bus Pattern Mode are l Viewing choose to enter the pattern as Binary or Hex l Binary Hex enter the pattern l Num Patterns to detect enter a whole number Scan Views Scan Views are different ways to view your WaveScan results You can choose to display views simultaneously or visit them sequentially Ju...

Страница 98: ...2 5 10 Scan Histogram provides a statistical view of edges that meet your search criteria ZOOM Zoom view works exactly as it does elsewhere in the oscilloscope software opening a close up of the source trace in a new grid that you can rescale vertically and horizontally A Zx tab appears by default when you launch WaveScan see Zoom Controls for an explanation of the remainder of the controls found ...

Страница 99: ... Measurement Mode set up the filter in one of the following ways l Touch Filter and choose an operator then enter the Filter Limit l Touch Filter Wizard and choose one of the pre set filters The Filter and Filter Limit are auto matically set based on your selection 7 Select each Scan View in which you wish to display results by checking the box at the bottom of the dialog Each view selected is dis...

Страница 100: ...t Panel History Mode button or choose Timebase History Mode 2 Select View History to enable the history display and View Table to display the index of records Optionally select to view Relative Times on the table 3 Choose a single acquisition to view by entering its Index number on the dialog or selecting it from the table of acquisitions You can also use the Navigation buttons or the slider bar a...

Страница 101: ...by the use of a measure gate Access Pass Fail Test Dialogs 1 Choose Analysis Pass Fail to display the Pass Fail dialog 2 Touch the Qx button or tab where you want to set up the mask The source waveform will be tested against this mask whenever Qx is enabled on the Pass Fail dialog 3 From the pop up menu select Pass Fail Condition and Mask test The Qx dialog opens with the Mask test condition selec...

Страница 102: ...iew Mask to display the mask over the trace Set Gates Optionally set gates to limit the portion of the waveform that is compared to the mask 1 Touch the Gates tab to display the dialog 2 Enter the Start and Stop timebase divisions that mark the segment of the waveform to be tested with this mask This can be a whole division of a fraction of a division Divisions are numbered 1 n left to right Tip A...

Страница 103: ...ns that when True yes result in a Pass 3 Optionally turn Off On markers Markers visually indicate where on the waveform mask violations have occurred Removing a Mask from the Display 1 Access theQx dialog where the mask is set 2 On the Load Mask right hand dialog click the Delete button 922499 Rev B 95 ...

Страница 104: ...Status dialogs These show all existing acquisition trigger channel math function measurement and parameter configurations as well as which are currently active Access the Status dialogs by choosing the Status option from the Vertical Timebase Math or Analysis menus e g Channel Status Acquisition Status 96 922499 Rev B ...

Страница 105: ...trols the behavior of the oscilloscope s Print function The selected print output device or application is displayed to the right of the HardCopy Setup button for convenience Show Windows Desktop minimizes the oscilloscope application window Maximize the application by touching the oscilloscope display icon located at the lower right of the desktop Touch Screen Calibration launches a sequence of d...

Страница 106: ...configure remote control of the instrument Supported communication protocols are l TCPIP Ethernet Enables remote control across a LAN via an Ethernet port If you choose this option you also need to install Teledyne LeCroy s VICP drivers on the controller These are included in the VICP Passport plug in available free from teledynelecroy com NOTE The instrument uses Dynamic Host Configuration Protoc...

Страница 107: ...trol Assistant monitors communication between the controller and oscilloscope when you are operating the instrument remotely You can log all events or errors only The log can be output to an ASCII file and is invaluable when you are creating and debugging remote control programs 1 From the menu bar choose Utilities Utilities Setup then touch the Remote tab 2 Under Remote Control Assistant touch Lo...

Страница 108: ...rocedures to configure output to a printer ADD PRINTER NOTE Any printer compatible with Microsoft Windows Embedded Standard 7P operating system is supported by your instrument Install printer drivers on the instrument outside of the oscilloscope application Printers can be connected via LAN Ethernet or USB 1 From the menu bar choose File Print Setup or Utilities Utilities Setup HardCopy 2 On the U...

Страница 109: ...using other oscilloscope functions such as masks and scripts have their own XStream subfolders 6 Optionally choose a color scheme and hardcopy print area Copy to Clipboard Follow this procedure to copy screen captures to the clipboard so you can paste them into another application like Microsoft Word for example 1 Choose Utilities Utilities Setup then touch the Hardcopy tab 2 On the Hardcopy dialo...

Страница 110: ...logs and menus and prints only the grids l DSO Window prints the dialogs with the grids l Full Screen prints the entire touch screen Auxiliary Output Settings Use the Aux Output dialog to configure the output of the Aux Out and Cal Out ports Configure Auxiliary Output Choose one of the following under Use Auxiliary Output For Trigger Enabled can be used as a gating function to trigger another inst...

Страница 111: ...TE This is not the same as the Timebase reference clock used to synchronize traces To access the Date Time dialog choose Utilities Utilities Setup from the menu bar then touch the Date Time tab or button Manual Method Enter the Hour Minute Second Day Month and Year then touch the Validate Changes button Internet Method This method uses the Simple Network Time Protocol SNTP to read the time from ti...

Страница 112: ...uch Browse and navi gate to the folder 3 Touch File to be deleted and provide a file name NOTE You can also use the up down arrows to move through the files contained in the Current folder selected 4 With the desired file selected touch Delete File Delete All Files in a Folder 1 Touch the Delete button 2 Touch Current folder and provide the path to the folder or touch Browse and navigate to the fo...

Страница 113: ...hoice of calibrations to perform whenever there is a significant change in ambient temperature NOTE If you do not enable this option the oscilloscope re calibrates only at startup and whenever you make a change to certain operating conditions Language sets the language used on the display Performance settings let you optimize oscilloscope performance for either Analysis speed of acquisition and ca...

Страница 114: ...ilities Calibration Setup The Calibration dialog shows the oscilloscope s calibration status and recommended actions There are two options for this calibration Calibrate All or Calibrate Current Setting l Calibrate All All possible combinations of vertical and horizontal settings are calibrated at the cur rent temperature This calibration is valid for the current temperature 5 C and takes about 50...

Страница 115: ...ntal offset level indicator with the trigger point l Div isions keeps the horizontal offset indicator stationary The trigger point remains on the grid as you increase the timebase whereas if Time is selected the trigger point could move off the grid NOTE The Offset is always in volts and the Delay is always in time However whenever Div is selected these are scaled proportional to the change in gai...

Страница 116: ...ng Interface is the Microsoft interface specification that allows different messaging and workgroup applications including e mail voice mail and fax to work through a single client such as the Exchange client MAPI uses the default Windows e mail application l SMTP Simple Mail Transfer Protocol is a TCP IP protocol for sending messages from one com puter to another through a network This protocol i...

Страница 117: ...sensitivity of the Front Panel knobs Optimized applies an accel eration algorithm to the knobs Legacy detects rotation of the front panel knobs in a manner similar to our legacy oscilloscopes Serial Decode Annotation Position If you have Serial Trigger or Decode options installed on your oscilloscope this control determines the placement of annotation labels relative to the trace line l On Trace p...

Страница 118: ...ng and recalling of up to six oscilloscope panel settings internally on your instrument If desired you can also save and recall your oscilloscope panel settings as an lss file to a specific hard disk location a network location or USB drive Saving Oscilloscope Setups Access the Save Setup dialog by either selecting File Save Setup from the menu bar or clicking the Save Instrument Setup button on t...

Страница 119: ...labeled with the name and save date time Otherwise the slot is labeled Empty RECALL SETUP FROM FILE 1 Touch Recall panel from file and provide the path to the destination file or touch Browse to navigate to the file 2 Touch Recall Now Save Recall Waveforms Save Waveform The Save Waveform dialog is used to save traces to either an internal memory location or to a text or binary format file The sour...

Страница 120: ...e LeCroy oscilloscopes Binary results in the smallest possible file size and is recommended when recalling waveforms to Teledyne LeCroy instru ments l NOTE Binary files can be converted to ASCII using Teledye LeCroy utilities such as Sco peExplorer or WaveStudio l ASCII Text output file txt extension l MATLAB Text output file compatible with MATLAB dat extension l Excel Text output file compatible...

Страница 121: ...own under the control Recall Waveform Access the Recall Waveform dialog by either choosing File Recall Waveform from the menu bar or clicking the Recall Waveform button on the main Save Recall dialog NOTE Only trc files saved in binary format can be recalled into the oscilloscope RECALL WAVEFORM FROM MEMORY 1 Touch Memory 2 Touch Source and choose a memory location from the Select Source pop up 3 ...

Страница 122: ...of the name or append an alpha character at the end of the number XYZ32a for example 3 Touch Data Format and choose from ASCII txt extension Excel csv extension 4 If you selected ASCII format also touch Delimiter and choose a character 5 Optionally to automatically save data to this file type after each new trigger choose an Auto Saveoption Wrap overwrites old files in the order created Fill stops...

Страница 123: ...ucture into which Notebooks are stored to facilitate backup and sharing Create Notebook Entry A Notebook Entry is a snapshot of the oscilloscope at the moment it is taken it captures the waveforms their setups and any measurements in process As each new entry is created it is added to the database of My Notebook Entries accessible from the LabNotebook dialog where they can be organized into differ...

Страница 124: ...lacing labels annotations on the image Touch the point on the image to place the label then enter the text in the pop up dialog Once placed you can resize the textbox or drag it to any location on the image Red Green and Blue Color Selectorslet you quickly change the markup color Just touch the icon then choose the next drawing tool To use additional colors touch the More Button This activates a C...

Страница 125: ...st check Multi selection then Select All or scroll the list touching Select as a desired entry is highlighted A white arrow appears next to each selected entry 3 To remove selections from the list highlight them again and touch Clear or just touch Clear All Filter Notebook Entries If there are a large number of notebook entries you can apply filters to the list before selecting 1 Select the notebo...

Страница 126: ... print a single entry select it on the main LabNotebook dialog then go to the second tab and touch the Print button Delete Notebook Entries Use the Delete button to remove selected Notebook Entries or Delete All to clear the entire My Notebook Entries Be aware that unless you have previously backed up the notebook the deleted entries cannot be restored Create Report Create Reports collates the sel...

Страница 127: ...tebooks list New Notebook Entries will be added to this Notebook whenever it is selected from that list Back Up Notebook 1 Choose File LabNotebook 2 Select the notebook from the My Notebooks list 3 Touch the Backup button next to the My Notebooks list 4 Optionally enter a new File Name or choose a new storage Folder NOTE The default is the current notebook name with the extension bak zip appended ...

Страница 128: ...file and recalled during flashback they are clipped to 16 bits l Floating point waveforms Certain math operations result in the creation of floating point wave forms with much higher resolution than can be stored in a 16 bit waveform file This extra res olution is not preserved when traces are recalled using flashback l Cumulative Measurements Any measurements on when the Lab Notebook entry is cre...

Страница 129: ...nel print button to create a new notebook entry whenever it is pressed Use Print Colors outputs waveforms on a white background The print colors used for each trace are set in Utilities Preferences Setup Colors This option helps save ink toner when printing reports Hardcopy Area determines how much of the screen image is included in the report grid area only grid area plus dialog whole screen Touc...

Страница 130: ...ness We recommend that you use the stylus or a capped pen rather than your finger for this procedure 1 From the menu bar choose Utilities Utilities Setup 2 On the Utilities main dialog touch Touchscreen Calibration 3 Following the prompts touch as close as possible to the center of each red cross that appears on the screen until the calibration sequence is complete Language Selection To change the...

Страница 131: ...e key and activate the software 1 From the menu bar choose Utillities Utilities Setup then touch the Options tab 2 Touch Add Key The Virtual Keyboard appears onscreen 3 Use the VIrtual Keyboard to type the Key Code in the Enter Option Key field then touch O K on the key board to enter the information The Key Code is added to the list of Installed Option Keys You can use the Up Down buttons to scro...

Страница 132: ...to the oscilloscope 6 Browse to the location of the installer xstreamdsoinstaller_x x x x exe and double click it to launch the X Stream Setup wizard 7 On the wizard click Next then read the EULA and click I Agree 8 Leave the default installation recommended or select individual components l X Stream DSO DSO Device drivers Upgrade DSO Microcode required for a version upgrade l Touch Screen Driver ...

Страница 133: ... mouse via the USB host ports Run the Recovery Wizard 1 Apply power to the oscilloscope 2 During the startup process as soon as you see the message Starting Acronis Loader Press F11 for Acronis Startup Recovery Manager press the F11 key until the Acronis logo appears momentarily The Acronis True Image Home window is displayed NOTE Do not press F11 before you see the Starting Acronis Loader message...

Страница 134: ...Start Menu choose All Programs Acronis Acronis True Image Home 2 On the Acronis True Image Home window towards the top right click Tools Utilities 3 On the Tools Utilities page beneath Protection Tools click Acronis Startup Recovery Manager 4 On the Acronis Startup Recovery Manager window click Activate F11 boot time recovery is now ena bled NOTE The process Searching for Acronis Secure Zone may t...

Страница 135: ...m support techhelp Teledyne LeCroy publishes a free Technical Library on its website Manuals tutorials application notes white papers and videos are available to help you get the most out of your Teledyne LeCroy products The Datasheet published on the product page contains the detailed product specifications You can also download Oscilloscope System Recovery Tools and Procedures which contains ins...

Страница 136: ...ining l The RMA l Name and address of the owner l Product model and serial number l Description of failure or requisite service 4 Pack the product case in a cardboard shipping box with adequate padding to avoid damage in transit 5 Mark the outside of the box with the shipping address given to you by Teledyne LeCroy be sure to add the following l ATTN RMA code assigned by Teledyne LeCroy l FRAGILE ...

Страница 137: ...nelecroy com teledynelecroy com europe Protocol Analyzers Ph 44 12 765 03971 Singapore Oscilloscopes Teledyne LeCroy Singapore Pte Ltd Blk 750C Chai Chee Road 02 08 Technopark Chai Chee Singapore 469003 Ph 65 64424880 FAX 65 64427811 Singapore Protocol Analyzers Genetron Singapore Pte Ltd 37 Kallang Pudding Road 08 08 Tong Lee Building Block B Singapore 349315 Ph 65 9760 4682 China Teledyne LeCroy...

Страница 138: ...m 2 GHz 2 7 GHz 4 EN 61000 4 4 2004 Electrical Fast Transient Burst 1 kV on power supply lines 0 5 kV on I O signal data and control lines 4 EN 61000 4 5 2006 Power line Surge 1 kV AC Mains L N L PE N PE 4 EN 61000 4 6 2007 RF Conducted Electromagnetic Field 3 Vrms 0 15 MHz 80 MHz 4 EN 61000 4 11 2004 Mains Dips and Interruptions 0 1 cycle 70 25 cycles 0 250 cycles 4 5 1 To ensure compliance with ...

Страница 139: ...cal equipment for measurement control and laboratory use Part 2 030 Particular requirements for testing and measuring circuits The design of the instrument has been verified to conform to the following limits put forth by these standards l Overvoltage Category II equipment intended to be supplied from the building wiring with a nominal supply voltage up to 300V l Measurement Category 0 oscilloscop...

Страница 140: ...com to view the certificate Warranty THE WARRANTY BELOW REPLACES ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE TELEDYNE LECROY SHALL NOT BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER IN CONTRACT OR OTHERWISE THE CUSTOMER IS RESPONSIBLE FOR THE TRANSPORTATIO...

Страница 141: ...Spare and replacement parts and repairs all have a 90 day warranty Products not made by Teledyne LeCroy are covered solely by the warranty of the original equipment manufacturer Windows License Agreement The HDO6000Oscilloscope software runs on a Windows operating system Teledyne LeCroy s agreement with Microsoft prohibits users from running software that is not relevant to measuring analyzing or ...

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