02_LTXXX-OM-E_TOC.pdf

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T
AB L E
O F
C
O N T E N T S
IN TRODUCTION
........................................................................................................ 1
FIRST THIN GS
............................................................................................................3
When Your Waverunner is Delivered… ........................................................................................... 3
CHECK THAT YOU HAVE E VERYTHING ..................................................................................................3
BE SURE TO RE AD THIS WARRANTY .........................................................................................................3
TAKE ADVANTAGE OF MAINTE NANCE AGRE EMENTS ..................................................................4
OBTAIN ASSISTANCE .........................................................................................................................................4
RETURN A PRODUCT FOR SERVICE OR REPAIR ..................................................................................4
STAY UP-TO-DATE ...............................................................................................................................................4
Safety First
.......................................................................................................................... 6
OPERATE IN A SAFE ENVIRONME NT .......................................................................................................6
GET TO KNOW THE WARNING SYMBOLS...............................................................................................6
CHOOSE THE CORRECT POWER SOURCE ...............................................................................................7
MAINTAIN POWER GROUND.........................................................................................................................7
REPLACE WITH THE CORRECT FUSES ......................................................................................................8
CLEAN YOUR WAVERUNNER (BUT LE T US MAINTAIN IT)..............................................................8
Up and Running .............................................................................................................................. 9
GET TO KNOW WAVERUNNE R — FRONT PANEL ...............................................................................9
INSTALL AND POWER UP.................................................................................................................................9
GET TO KNOW WAVERUNNE R — BACK PANEL ................................................................................10
INITIAL IZE ............................................................................................................................................................12
CHECK YOUR WAVERUNNER SYSTE M ....................................................................................................12
ADD AN OPTION? ..............................................................................................................................................13
UPDATE TO THE LATEST FIRMWARE? ....................................................................................................13
SAVE THE SCREE N (AND ENERGY)..........................................................................................................13
DO YOU PREFER YOUR CONTROLS WITH SOUND AND AUTO-REPE AT? .............................14
PART O N E : GE T T I N G START E D .............................15
CHAPTE R ON E :
CATCH A N E W WAVE
............................................................... 17
View Your Waveform ......................................................................................................................17
USE TIME/ DIV TO ADJUST THE TIMEBASE .........................................................................................19
ADJUST SENSITIVITY AND POSITION .....................................................................................................20
ZOOM AND SCROLL AUTOMATICALLY..................................................................................................20
USE THE POSITION AND ZOOM CONTROLS.......................................................................................22
SET UP THE TIME BASE ...................................................................................................................................23
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SET THE COUPLING......................................................................................................................................... 24
SET UP FOR CAL AND BNC SIGNALS .......................................................................................................25
CHAPTE R TWO:
SIMPLY TRIGGER
..................................................................... 29
E dge Trigger on Simple Signals.....................................................................................................29
CONTROL TRIGGERING ................................................................................................................................ 29
SET UP AN EDGE TRIGGER ......................................................................................................................... 30
USE WINDOW TRIGGER ................................................................................................................................. 33
TRIGGER SOURCE ............................................................................................................................................. 34
OBTAIN A TRIGGER STATUS SUMMARY ................................................................................................ 35
CHAPTE R THRE E :
DISPLAY YOUR SIGNAL
...................................................... 37
Display Persistence ........................................................................................................................37
VIEW SIGNAL CHANGES OVER TIME ..................................................................................................... 37
SET UP YOUR DISPLAY.................................................................................................................................... 38
SET UP FOR PERSISTE NCE ............................................................................................................................ 39
CHOOSE A GRID STYLE ................................................................................................................................. 40
Save and Recall Your Panel Setups.................................................................................................42
SAVE PANEL SETUPS ........................................................................................................................................ 42
RECALL PANEL SETUPS.................................................................................................................................. 43
CHAPTE R FOUR:
CHOOSE A ME ASURE TOOL
................................................ 45
Measure with Cursors ....................................................................................................................45
CONTROL THE TIME CURSORS .................................................................................................................. 45
CONTROL THE AMPLITUDE CURSORS................................................................................................... 46
Measure Automatically with Parameters........................................................................................50
CHOOSE A STANDARD PARAME TER .......................................................................................................51
TURN OFF CURSORS AND PARAMETERS............................................................................................... 52
CHAPTE R FIVE :
USE MATH TOOLS
.................................................................... 55
Make Math E asy ............................................................................................................................55
SET UP TO DO WAVEFORM MATHEMATICS......................................................................................... 56
USE A MATH TOOL ........................................................................................................................................... 57
PERFORM AN FFT OPERATION .................................................................................................................. 58
DO SUMMED AVERAGING ............................................................................................................................ 61
Save and Recall Waveforms............................................................................................................63
OBTAIN A WAVEFORM OR ME MORY STATUS REPORT................................................................... 65
CHAPTE R SIX:
DOCUME N T YOUR WORK
......................................................... 67
Make a Hard Copy.........................................................................................................................67
PRINT, PLOT OR COPY .................................................................................................................................... 68
Manage Floppy or Card Files.........................................................................................................69
CUSTOMIZE FILE NAMES.............................................................................................................................. 70
ADD A NE W DIRECTORY............................................................................................................................... 71
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LTXXX-OM-E Rev B
Table of Contents
COPY FILES ...........................................................................................................................................................72
PART T WO : L O O KI N G DE E PE R .............................. 75
CHAPTE R SE VE N :
A QUE STION OF TIME BASE
............................................... 77
Choose a Sampling Mode.............................................................................................................. 77
SINGLE-SHOT — WAVERUNNER’S BASIC CAPTURE TECHNIQUE ............................................77
RIS — FOR HIGHER SAMPL E RATES.........................................................................................................78
ROLL — DISPLAY IN REAL-TIME................................................................................................................78
SEQUENCE — WORKING WITH SEGMENTS........................................................................................79
PAIRING CHANNELS ........................................................................................................................................80
Use a Sampling Mode.....................................................................................................................81
SET UP FOR SINGL E-SHOT OR RIS ............................................................................................................81
SET UP FOR SEQUE NCE CAPTURE ............................................................................................................82
OBTAIN A SE QUENCE STATUS SUMMARY.............................................................................................83
OR SAMPLE EXTERNALLY.............................................................................................................................84
CHAPTE R E IGHT:
TRIGGER SMART
................................................................... 87
Hold Off by Time or E vents ......................................................................................................... 87
HOLD OFF BY TIME ..........................................................................................................................................87
HOLD OFF BY E VENTS ...................................................................................................................................88
Trigger SMART ............................................................................................................................. 89
CATCH A GLITCH ...............................................................................................................................................89
CAPTURE RARE PHENOMENA ....................................................................................................................93
TRIGGER ON INTERVALS ..............................................................................................................................96
QUAL IFY A SIGNAL .........................................................................................................................................100
TRIGGER ON LOST SIGNALS .....................................................................................................................103
TRIGGER ON TV SIGNALS...........................................................................................................................106
TRIGGER PATTERN .........................................................................................................................................108
CHAPTE R N IN E :
DISPLAY MORE
.......................................................................113
Transform Your Vision ................................................................................................................. 113
“Paint” Your Display .................................................................................................................... 116
CHANGE YOUR PALETTE ............................................................................................................................117
Set Up XY Display........................................................................................................................120
CHAPTE R TE N :
USE ADVAN CE D MATH TOOLS
............................................ 125
Compute E xtrema Waveforms......................................................................................................125
Rescale and Assign Units .............................................................................................................127
E nhance Resolution .....................................................................................................................128
Do More with FFT .......................................................................................................................132
DO FFT AVERAGE ............................................................................................................................................132
DO ADDITIONAL PROCESSING................................................................................................................132
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USE CURSORS WITH FFT ..............................................................................................................................132
SET FFT SPAN .....................................................................................................................................................135
Use an Advanced Math Function................................................................................................. 137
Resample to Deskew.................................................................................................................... 138
Plot Trends................................................................................................................................... 139
READ TRE NDS...................................................................................................................................................141
CHAPTE R E L E VE N :
ANALYZE WITH PARAME TERS
.....................................145
Use Custom Parameters............................................................................................................... 145
CUSTOMIZE A PARAME TER .......................................................................................................................146
Test for Pass and Fail ................................................................................................................... 147
SET UP A PASS/ FAIL TEST...........................................................................................................................147
PASS/ FAIL TEST ON A MASK .....................................................................................................................148
MAKE A WAVEFORM MASK ........................................................................................................................149
CHANGE A TEST ACTION............................................................................................................................149
Choose a Parameter...................................................................................................................... 153
CHAPTE R TWE LVE :
USE WAVE RUN N E R WITH PC
....................................... 161
Transfer Data and Images to PC.................................................................................................. 161
EXPLORE YOUR SCOPE ................................................................................................................................162
MONITOR YOUR REMOTE CONTROL OPERATIONS.....................................................................163
Save Waveforms in ASCII ............................................................................................................. 164
SAVE IN AN ASCII FORMAT.........................................................................................................................165
Use ASCII Formats ...................................................................................................................... 167
SAVE TO SPREADSHE ET...............................................................................................................................167
PLOT A WAVEFORM IN SPREADSHE ET ................................................................................................170
USE MATHCAD ..................................................................................................................................................171
USE MATLAB ......................................................................................................................................................173
PART T H R E E : WAVA O PT I O N ................................ 175
CHAPTE R THIRTE E N :
PARAME TERS
...............................................................177
A Valuable Tool for Waveform Analysis........................................................................................ 177
SET UP FOR HISTOGRAMS ..........................................................................................................................177
PARAMETER MATH .........................................................................................................................................185
CHAPTE R FOURTE E N :
MAKIN G HISTOGRAMS
............................................. 191
Create and View a Histogram...................................................................................................... 191
SETTING BINNING AND SCAL E ...............................................................................................................196
CHOOSING HISTOGRAM PARAMETERS...............................................................................................200
USING MEASURE ME NT CURSORS ...........................................................................................................201
ZOOMING SEGMENTE D TRACES............................................................................................................203
CHAPTE R FIFTE E N :
HOW HISTOGRAMS WORK
............................................205
Theory of Operation....................................................................................................................205
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Table of Contents
DSO PROCESS.....................................................................................................................................................206
PARAMETER BUFFER .....................................................................................................................................206
CAPTURE OF PARAMETER E VE NTS .......................................................................................................207
HISTOGRAM PARAMETERS .........................................................................................................................207
ZOOM TRACES AND SEGME NTED WAVEFORMS ............................................................................208
HISTOGRAM PEAKS........................................................................................................................................208
BINNING AND MEASUREME NT ACCURACY......................................................................................209
CHAPTE R SIXTE E N :
HISTOGRAM PARAME TE RS
..........................................211
avg ................................................................................................................................................ 211
fwhm.............................................................................................................................................212
fwxx ..............................................................................................................................................213
hampl............................................................................................................................................214
Hbase ...........................................................................................................................................215
high...............................................................................................................................................216
hmedian........................................................................................................................................217
hrms..............................................................................................................................................218
htop...............................................................................................................................................219
low ................................................................................................................................................220
maxp.............................................................................................................................................221
mode.............................................................................................................................................222
pctl................................................................................................................................................223
pks ................................................................................................................................................224
range.............................................................................................................................................226
sigma ............................................................................................................................................227
totp................................................................................................................................................228
xapk ..............................................................................................................................................229
APPE N DIX:
ARCHITE CTURE AN D SPE CIFICATION S
................................... 231
Instrument Architecture Overview...............................................................................................231
PROCESSORS.......................................................................................................................................................231
ADCs .......................................................................................................................................................................231
ME MORIES...........................................................................................................................................................231
RIS ............................................................................................................................................................................231
TRIGGER SYSTE M ............................................................................................................................................231
AUTOMATIC CAL IBRATION ........................................................................................................................232
DISPLAY SYSTE M ..............................................................................................................................................232
INTERFACE AND PANEL SETUPS.............................................................................................................232
REMOTE CONTROL ........................................................................................................................................232
Specifications................................................................................................................................234
MODELS................................................................................................................................................................234
ACQUISITION SYSTE M ....................................................................................................................234
TIMEBASE SYSTEM ..........................................................................................................................................235
L TXXX-OM-E Rev B
ISSUED: January 2002
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