Digi-Frame DF-1044r Manual de usuario Pagina 31
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Acquisition and Setup
R&S
®
RTO
15User Manual 1316.0827.02 ─ 06
Fig. 2-3: R&S
RTO setup of multiple waveforms in separate diagrams: best resolution
2.1.1.3 Bandwidth
For analog applications the highest signal frequency determines the required oscillo-
scope bandwidth. The oscilloscope bandwidth should be slightly higher than the maxi-
mum frequency included in the analog test signal to measure the amplitude with very little
measurement error.
Most test signals are more complex than a simple sine wave and include several spectral
components. A digital signal, for example, is built up of several odd harmonics. As a rule
of thumb, for digital signals the oscilloscope bandwidth should be 5 times higher than the
clock frequency to be measured.
The oscilloscope is not a stand-alone system. You need a probe to measure the signal
of interest, and the probe has a limited bandwidth, too. The combination of oscilloscope
and probe creates a system bandwidth. To maintain the oscilloscope bandwidth, that is,
to reduce the effect of the probe on the system bandwidth, the probe bandwidth should
exceed the bandwidth of the oscilloscope, the recommended factor is 1.5 x oscilloscope
bandwidth.
See also: chapter 2.1.4.1, "Voltage Probes", on page 21
2.1.2 Sampling and Acquisition
The vertical system of a digital oscilloscope conditions the test signal in a way that the
following A/D Converter (ADC) can transform the measured voltage into digital data.
Basics
- Digital Oscilloscope 1
- User Manual 1
- Basic Safety Instructions 3
- 1171.0200.52-01.01 15
- Customer Support 16
- Qualitätszertikat 17
- Certicate of quality 17
- Certicat de qualité 17
- Contents 19
- 1 Preface 27
- 2 Acquisition and Setup 29
- Fig. 2-3: R&S 31
- 2.1.3 Horizontal System 35
- . With these parameters 36
- GainCommonMode 39
- 2.2 Setting Up the Waveform 40
- 2.2.5 Using the Roll Mode 42
- 2.2.7 Using Digital Filters 42
- 2.3.1 Horizontal Settings 43
- 52
- 2.3.2 Vertical Settings 54
- 2.3.3 Probes 57
- Acquisition and Setup 58
- The function 61
- AutoZero" 62
- "Print" 62
- ProbeMeter: Measurement type 63
- 2.3.4 Digital Filter Setup 65
- 2.3.5 Horizontal Accuracy 67
- 3 Triggers 69
- 3.2 Setting Up the Trigger 71
- 3.2.3 Using Holdoff 72
- 3.3 Reference for Triggers 73
- 3.3.1 Events 74
- 3.3.2 Trigger Qualification 93
- 3.3.3 Noise Reject 95
- 3.3.4 Sequence 96
- 3.3.5 Trigger Position 99
- 3.3.6 Control 101
- 4 Display 104
- 4.1.2 Adjusting the Display 105
- 4.2 Zoom 117
- 4.2.2 Zooming for Details 119
- - to display the selected 123
- 4.2.3 Reference for Zoom 124
- 4.3 XY-diagram 127
- 4.4 History 130
- 4.4.1 About History 131
- 4.4.2 Using History 131
- 4.4.3 Reference for History 133
- 5 Measurements 137
- 5.2 Automatic Measurements 145
- Measurements 149
- Automatic Measurements 149
- PosPulse 150
- SetupHold Setup 181
- Auto scale 190
- 6 Mathematics 197
- 6.1.2 Math Setup 198
- ← Vertical Scale 199
- FIR: Type, Cut-Off 202
- 6.2.2 Advanced Expressions 203
- Mathematics 205
- 6.3 FFT Analysis 208
- Overlap area 209
- Record 209
- Gate position 210
- Gate length 210
- Center frequency 210
- Frequency span 210
- 7 Reference Waveforms 224
- 7.2 Reference Waveforms 225
- 7.2.2 Scaling 227
- ← Vertical Stretching 228
- ← Horizontal Stretching 229
- on page 28 230
- on page 39 230
- 8 Mask Testing 231
- 8.2 Working with Masks 233
- 8.2.2 Setting Up a Mask Test 237
- 8.2.4 Running a Mask Test 238
- 8.3 Reference for Masks 240
- 8.3.2 Mask Definition 243
- 8.3.3 Event Actions /Reset 249
- 8.3.4 Mask Display 251
- 9 Search Functions 252
- 9.2.4 Clearing Search Results 257
- 9.3.1 Setup Tab 258
- 9.3.2 Scope Tab 260
- 9.3.3 Result Presentation 262
- 9.3.4 Noise Reject 264
- 10 Protocol Analysis 266
- 10.1.2 Display 267
- # --- Start of PTT file 269
- @FILE_VERSION = 1.0 269
- @PROTOCOL_NAME = i2c 269
- @PROTOCOL_NAME = can 269
- 10.1.4 Bit Pattern Editor 271
- 10.2 I²C 272
- 10.2.1 The I²C Protocol 273
- 10.2.2 Analyzing I²C Signals 274
- 10.2.3 Reference for I²C 276
- Column Description 283
- R/W bit Value of the R/W bit 283
- 10.3 SPI Bus 285
- 10.3.2 Analyzing SPI Signals 286
- 10.3.3 Reference for SPI 287
- 10.4 UART / RS232 294
- CAN (Option R&S RTO-K3) 302
- Protocol Analysis 309
- LIN (Option R&S RTO-K3) 312
- 10.6.2 Reference for LIN 313
- Chks (hex) Checksum value 321
- 10.7.1 Reference for FlexRay 323
- Single-endedDifferential 325
- Indicators 327
- 11.1 About MSO 337
- 11.2.1 Using Digital Probes 340
- 11.3 Reference for MSO 344
- SCPI command: 346
- ← Signal selection 347
- Threshold setup 347
- 11.3.2 MSO Display 348
- 11.3.3 MSO Digital Probes 348
- 11.3.5 MSO Resolution 358
- 12.1.4 Restoring Settings 364
- 12.2.1 Save/Recall 366
- 12.2.2 Autonaming 370
- 12.2.3 User-defined Preset 371
- 12.2.4 File Selection Dialog 371
- 13 General Instrument Setup 376
- 13.2.2 Front Panel Setup 384
- 13.2.3 Self-alignment 385
- General Instrument Setup 386
- 14.1 Operating System 387
- 14.1.3 Logon 388
- 14.2 Firmware Update 389
- 14.3 Software Options 390
- 14.3.1 Mode 391
- 14.4 Operation in a Network 392
- 14.4.2 LXI Configuration 395
- Parameter Value 396
- Dynamic DNS Enabled 396
- ICMP Ping Enabled 396
- 15 Maintenance 401
- 15.3 Data Security 402
- 15.4 Storing and Packing 402
- 15.5 Performing a Selftest 402
- 15.6.2 Selftest 403
- 16 Remote Control 405
- 16.1.3 Messages 408
- 16.1.4 SCPI Command Structure 411
- Remote Control 428
- 16.2 Command Reference 434
- 16.2.3 Common Commands 438
- 16.2.5 Acquisition and Setup 443
- Range: -500 to 500 446
- Suffix: 454
- PRINt 462
- Range: -100E-9 to 100E-9 468
- 16.2.6 Trigger 469
- Suffix Trigger type 494
- 2 GLITch 494
- <NewZoomName> 519
- 16.2.8 Cursor Measurements 531
- 16.2.9 Automatic Measurements 538
- Command Reference 559
- 16.2.11 Reference Waveforms 606
- 16.2.12 Mask Testing 613
- 16.2.13 Search Commands 627
- 16.2.14 Protocols 659
- 16.2.16 Data Management 769
- 16.2.18 Maintenance 787
- 16.2.19 Status Reporting 787
- A Menu Overview 792
- A.2 Horizontal Menu 793
- A.3 Trigger Menu 793
- A.4 Vertical Menu 794
- Zero" on page 46 794
- A.5 Math Menu 794
- A.6 Cursor Menu 794
- A.7 Meas Menu 795
- A.8 Masks Menu 795
- A.9 Search Menu 795
- A.10 Protocol Menu 796
- A.11 Display Menu 796
- Menu Overview 797
- Display Menu 797
- List of Commands 798
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