Rigol DG4000 Series Manuel d'utilisateur Page 123
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Noté. / 5. Basé sur avis des utilisateurs
Chapter 5 Modulated Waveform Output RIGOL
DG4000 Series User’s Guide
5-23
QPSK
When QPSK (Quadrature Phase Shift Keying) is selected, you can configure the
generator to “shift” its output phase among four preset phases (“carrier phase”
and three “modulating phases”). The “shift” frequency (QPSK rate) is determined
by the internal signal level of the instrument.
To Select QPSK Modulation
Press Mod Type QPSK to enable QPSK function.
When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
After QPSK is enabled, the instrument will generate QPSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
QPSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform
(except DC), and the default is Sine.
Press the front panel key Sine, Square, Ramp or Arb Select Wform
(or User, the pre-defined waveform can not be DC) to select desired carrier
waveform shape.
Pulse (basic waveform), Noise and DC could not be used as carrier waveform.
To Set Carrier Phase
After carrier waveform shape is selected, press Start Phase to highlight it and use
the numeric keyboard or direction keys and knob to input the desired phase. The
phase range is from 0º to 360º and the default is 0º.
- User’s Guide 1
- DG4000 Series 1
- Guaranty and Declaration 3
- Safety Requirement 4
- Handling Safety 6
- Safety Terms and Symbols 7
- General Care and Cleaning 11
- Environmental Considerations 12
- DG4000 Series Overview 13
- Document Overview 15
- Contents 17
- Chapter 1 Quick Start 25
- General Inspection 26
- Appearance and Dimensions 28
- Figure 1-4 Side View 29
- Front Panel 30
- Rear Panel 37
- To Connect to Power 40
- To Replace the Fuse 41
- User Interface 42
- Parameter Setting Method 45
- Direction keys and Knob 46
- To Use the Built-In Help 47
- To Use the Security Lock 48
- To Use the Rack Mount Kit 49
- Installation Tool 50
- Installation Space 51
- Installation Procedure 53
- To Select Output Channel 58
- To Select Basic Waveform 59
- To Set Frequency 60
- To Set Amplitude 61
- Vrms22Vpp = 62
- To Set DC Offset Voltage 63
- To Set Start Phase 64
- Align Phase 65
- Duty Cycle=t/T*100% 67
- Symmetry=t/T*100% 68
- To Set Parameters for Pulse 69
- Leading/Trailing Edge Time 70
- CH1 Output 71
- CH2 Output 71
- To Enable Output 73
- To Enable Arbitrary Waveform 78
- Point By Point Output Mode 79
- To Select Arbitrary Waveform 80
- Stored Waveform 85
- Volatile Waveform 85
- Example: Edit Points 89
- Example: Edit Block 91
- To Edit Arbitrary Waveform 93
- Chapter 4 Harmonic Output 95
- To Set Harmonic Order 97
- To Select Harmonic Type 97
- To Set Harmonic Amplitude 98
- To Set Harmonic Phase 99
- DG4000 Series User’s Guide 101
- To Select AM Modulation 102
- To Set Carrier Frequency 102
- To Set Modulation Depth 104
- To Select FM Modulation 105
- To Set Frequency Deviation 107
- To Select PM Modulation 108
- To Set Phase Deviation 110
- To Select ASK Modulation 111
- To Set Carrier Amplitude 111
- To Set ASK Rate 112
- To Set Modulating Amplitude 113
- To Set Modulating Polarity 113
- To Select FSK Modulation 114
- To Set FSK Rate 116
- To Set Hop Frequency 116
- To Select PSK Modulation 117
- To Set Carrier Phase 117
- To Set PSK Rate 118
- To Set PSK Phase 119
- To Select BPSK Modulation 120
- To Set BPSK Rate 121
- To Set BPSK Phase 122
- To Select QPSK Modulation 123
- To Set QPSK Rate 124
- To Set QPSK Phases 124
- To Select 3FSK Modulation 125
- Modulation Source 126
- To Set 3FSK Rate 126
- To Set Hop Frequencies 126
- To Select 4FSK Modulation 127
- To Set 4FSK Rate 128
- To Select OSK Modulation 129
- To Set OSK Rate 131
- To Set Oscillate Period 131
- To Select PWM Modulation 132
- Chapter 6 Sweep 135
- To Enable Frequency Sweep 136
- Sweep Type 138
- Log Sweep 139
- Step Sweep 140
- Sweep Time 141
- Return Time 142
- Mark Frequency 142
- Start Hold 143
- End Hold 144
- Sweep Trigger Source 144
- Trigger Output Edge 145
- Chapter 7 Burst 147
- To Enable Burst Mode 148
- Burst Type 148
- Infinite Burst 149
- Gated Burst 150
- Burst Phase 152
- Burst Period 152
- Gated Polarity 152
- Burst Delay 153
- Burst Trigger Source 153
- Chapter 8 Counter 157
- To Enable the Counter 158
- To Set the Counter 159
- Statistic 161
- Chapter 9 Store and Recall 163
- Storage System Overview 164
- To Select File Type 166
- To Select Browser Type 167
- File Operation 168
- New Directory 172
- Overview 174
- Channel Setting 175
- Sync Polarity 176
- Output Polarity 177
- Resistance Setting 177
- Noise Setting 178
- Noise Scale 178
- LAN Setting 184
- MAC Address 185
- VISA Descriptor 185
- IP Configure Mode 185
- To Set USB Device Type 189
- System Setting 190
- Language 191
- Power On Setting 191
- Power Setting 191
- Brightness 192
- Screen Saver 192
- Clock Source 192
- System Information 194
- Test/Cal 197
- Channel Coupling 198
- Channel Copy 201
- User-defined Waveform Key 202
- Restore Default 204
- Chapter 11 Remote Control 209
- Remote Control Overview 210
- Remote Control Mode 211
- To Use PC Software 215
- Chapter 12 Troubleshooting 221
- Chapter 13 Specifications 223
- ±1.5VDC 228
- Chapter 14 Appendix 233
- Appendix C: Warranty 236
- RIGOL Index 238
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