Rigol DSG3000 Series Specifications Page 125
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RIGOL
DS6000 User’s Guide
6-5
FFT
FFT is used to quickly perform Fourier transform on specified signals and transform
time domain signals to frequency domain signals. Use FFT to facilitate the following
works:
Measure harmonic components and distortion in the system
Measure the characteristics of the noise in the DC power
Analyze vibration
Press MATH Operate to select “FFT” and set the parameters of FFT operation.
*Note: “Center frequency” refers to the frequency of the frequency domain waveform
corresponding to the horizontal center of the screen (the frequency at the position
marked by CurA in the figure above).
1. Source Selection
Press Source to select the desired channel. The channels available are CH1,
CH2, CH3 and CH4.
Frequency Domain Waveform Time Domain Waveform
Vertical Amplitude Horizontal Scale FFT Sample Rate Center Frequency*
- User’Guide 1
- Guaranty and Declaration 3
- Safety Requirement 4
- Safety Terms and Symbols 6
- Measurement Category 7
- Ventilation Requirement 8
- Working Environment 9
- DS6000 User’s Guide 10
- General Care and Cleaning 11
- Environmental Considerations 12
- DS6000 Series Overview 13
- Document Overview 15
- Contents 17
- 1 Quick Start 23
- General Inspection 24
- Appearance and Dimensions 25
- To Remove the Cover 26
- To Use the Battery 29
- Power-on Inspection 30
- To Connect the Probe 31
- Function Inspection 32
- Probe Compensation 34
- Front Panel Overview 35
- Rear Panel Overview 36
- VERTICAL 38
- HORIZONTAL 40
- TRIGGER 41
- Run/Stop 41
- Navigation Knob 43
- User Interface 45
- To Use the Security Lock 50
- To Use the Rack Mount Kit 52
- Installation Tool 53
- Installation Space 54
- Installation Procedures 55
- knob ) at the front 58
- 2 To Set the Vertical System 59
- To Enable the Channel 60
- Channel Coupling 61
- Bandwidth Limit 62
- Input Impedance 64
- Waveform Invert 65
- Vertical Scale 65
- Vertical Expansion 66
- Amplitude Unit 66
- Channel Label 67
- Delayed Sweep 70
- Time Base Mode 72
- X-Y Mode 73
- ” on page 6-17 75
- Roll Mode 76
- Horizontal Scale 77
- Horizontal Reference 78
- 79
- 4 To Set the Sample System 81
- Acquisition Mode 82
- Peak Detect 84
- High Resolution 84
- Sample Mode 85
- Sample Rate 86
- Memory Depth 88
- Antialiasing 89
- Trigger Source 92
- Trigger Mode 93
- Trigger Coupling 95
- Trigger Holdoff 96
- Noise Rejection 97
- Trigger Type 98
- Edge Trigger 99
- Pulse Trigger 100
- Slope Trigger 102
- Video Trigger 105
- Pattern Trigger 107
- RS232 Trigger 109
- I2C Trigger 111
- SPI Trigger 113
- CAN Trigger 115
- DS6000 User’s Guide 117
- USB Trigger 118
- Trigger Level: 119
- Trigger Ouput Connector 120
- 6 To Make Measurements 121
- Math Operation 122
- Subtraction 123
- Multiplication 123
- Division 124
- Logic Operation 128
- Advanced Operation 130
- Auto Measurement 133
- Quick Measurement after Auto 134
- Time Parameters 136
- Voltage Parameters 138
- Measurement Setting 141
- Clear the Measurement 143
- All Measurement 144
- Statistic Function 145
- Measurement History 146
- Cursor Measurement 147
- Manual Mode 148
- Track Mode 151
- Auto Mode 154
- 7 Protocol Decoding 155
- Parallel Decoding 156
- Threshold 157
- RS232 Decoding (Option) 158
- Stop Bit 159
- Check Bit 159
- Start Phase 159
- Data Bits 159
- Detect the parity bit is 1 161
- 0x52 (01010010, LSB) 161
- SPI Decoding (Option) 162
- I2C Decoding (Option) 165
- CAN Decoding (Option) 167
- 8 Reference Waveform 169
- To Enable REF Function 170
- To Select REF Source 171
- To Save to Internal Memory 171
- 9 Pass/Fail Test 173
- To Select Source 175
- To Create Mask 175
- Test and Output 175
- To Save the Test Mask 176
- To Load the Test Mask 176
- 10 Waveform Recording 177
- Waveform Recording 178
- Waveform Playback 180
- Waveform Analysis 182
- Analysis Based on Trace 185
- 11 Display Control 187
- To Select the Display Type 188
- To Set the Persistence Time 189
- To Set the Screen Grid 191
- To Set the Grid Brightness 191
- To Set the Menu Display 191
- 12 Store and Recall 193
- Storage System 194
- Storage Type 195
- Internal Store and Recall 197
- External Store and Recall 200
- Disk Management 203
- English Input Method 205
- Chinese Input Method 206
- To Delete a File or Folder 207
- To Rename a File or Folder 207
- To Copy and Paste a File 208
- To Clear the Local Memory 208
- Factory 209
- 13 System Function Setting 215
- LAN Setting 216
- IP Configuration Type (DHCP) 217
- Set the Gate 218
- Set the Domain Name Server 218
- MAC Address 219
- VISA Address 219
- USB Device 220
- To Set the GPIB Address 220
- System-related 221
- Power-off Recall 222
- System Time 222
- Self-calibration Information 224
- Error Information 226
- Self-calibration 227
- Power Status 228
- External Trigger Impedance 228
- Aux Output 229
- Reference Clock 230
- Option Management 231
- To Print the Waveform 232
- Normal Print 233
- PictBridge Print 234
- 14 Remote Control 237
- Remote Control via USB 238
- Remote Control via LAN 242
- Remote Control via GPIB 245
- 15 Troubleshooting 247
- 16 Specifications 249
- Trigger 251
- 17 Appendix 257
- Appendix B: Warranty 258
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