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Chapter 13 195
GSM/EDGE Programming Commands
EDGE Error Vector Magnitude (EVM)
GSM/EDGE Programming Commands
IQ Imbalance Results
The IQ Imbalance result (a double) is a value in dB, calculated from Gain Imbalance and Quadrature
Skew.
IQ imbalance is part of the EDGE EVM results, but to preserve backwards compatibility with earlier
versions of firmware it is not included in the general results list. It can be queried using the command:
:FETCh:LSEQuencer:ACQuire{1:512}:ASTep{1:1000}:MEASurement? EEVM,
"IqImbalance"
For example,
:FETC:LSEQ:ACQ{1}:AST{1}:MEAS? EEVM, "IqImbalance"
- Agilent E6640A 1
- EXM Wireless 1
- Test Set 1
- Safety Notices 2
- Warranty 3
- Contents 5
- • Sequence Setup 9
- 10 Chapter 1 10
- Chapter 1 11 11
- Analyzer List Sequencer 12
- Chapter 1 13 13
- Source List Sequencer 14
- Chapter 1 15 15
- 16 Chapter 1 16
- Chapter 1 17 17
- 18 Chapter 1 18
- Sequence Setup 19
- 20 Chapter 1 20
- Definitions 21
- Analyzer Sequence 22
- Acquisition Parameters 23
- Analysis Interval Parameters 31
- 34 Chapter 2 34
- The chapter topics are: 35
- • Source Sequence 35
- • Source Parameters 35
- Source Sequence 36
- Source Parameters 37
- 38 Chapter 3 38
- 42 Chapter 3 42
- Coordinating the Sequencers 43
- Chapter 4 45 45
- 46 Chapter 4 46
- Single key or by sending the 46
- Chapter 4 47 47
- Chapter 4 49 49
- Chapter 4 51 51
- 52 Chapter 4 52
- 5 Mode Parameters 53
- 54 Chapter 5 54
- Mode Parameters 54
- GSM Timeslot 55
- GSM Burst Type 55
- GSM Mod Scheme 55
- GSM Burst Search Threshold 56
- GSM HSR Pulse Shape Filter 56
- GSM Burst Align 56
- GSM Carrier Bandpass Filter 56
- GSM RF Sync Delay 57
- WCDMA HSDPA/HSUPA Enable 57
- TD-SCDMA Analysis Timeslot 57
- TD-SCDMA HSPA/8PSK Enable 58
- TD-SCDMA Demod – Uplink Pilot 58
- TD-SCDMA Demod – Sync Type 58
- Chapter 5 59 59
- TD-SCDMA Demod – Mod Scheme 60
- Chapter 5 61 61
- 62 Chapter 5 62
- TD-SCDMA Demod – Filter Alpha 63
- TD-SCDMA Demod – Limit Test 64
- Trigger Timeout 65
- Abort on Limit Fail 65
- Abort on Error 66
- Chapter 5 67 67
- Advanced Setup Parameters 68
- Chapter 5 69 69
- 70 Chapter 5 70
- Chapter 5 71 71
- Test Set Parameters 72
- Chapter 5 73 73
- 74 Chapter 5 74
- Save and Recall 75
- 76 Chapter 5 76
- 6 Front Panel Sequence Setup 77
- Select mode 78
- Test set parameter setup 79
- Input/Output setup 79
- Corrections 79
- Front Panel Sequence Setup 80
- Basic Measurement setup 81
- Acquisition setup 81
- Analysis Interval setup 83
- To run a Sequence 84
- Saving a Sequence 87
- 88 Chapter 6 88
- 90 Chapter 6 90
- Tab separated value file 92
- Spreadsheet setup 93
- TSV file generation 97
- • Results by SCPI 99
- 100 Chapter 8 100
- View/Display 100
- Result Metrics 100
- Results by SCPI 101
- 102 Chapter 8 102
- Results format 103
- 9 Sequence Setup Commands 107
- Sequence Setup Commands 108
- 1: Acq Number 111
- 2: Radio Standard 111
- 3: Radio Band 112
- To set an EDGE Radio Band: 113
- To set a 1xEVDO Radio Band: 114
- To set an LTE FDD Radio Band: 115
- To set an LTE TDD Radio Band: 115
- 4: Device (for Channel) 116
- 5: Frequency / Channel 117
- 6: Number of Averages 118
- 7: Peak Power 118
- 8: Instrument Gain Type 120
- 9: Transition Time 120
- 10: Acquisition Duration 121
- 12: Input Trigger Level 122
- 13: Input Trigger Delay 122
- 14: Output Trigger 123
- 17: Multiport Adapter Preamp 124
- 18: Acquisition Integration 125
- 2: Analysis Offset 126
- 3: Analysis Interval 127
- 4: Measurement Bitmap 128
- 1: Step Number 132
- 2: Step Trigger 132
- 4: Radio Band 133
- 5: Radio Band Link 133
- 6: Frequency/Channel 133
- 7: Power 134
- 8: Waveform 134
- 9: Step Duration 134
- 10: Time / Count 134
- 11: Output Trigger 135
- 136 Chapter 9 136
- 10 Programming a Sequence 137
- Sequence Programming Example 138
- Chapter 10 139 139
- Programming a Sequence 139
- Set up the input trigger 140
- Chapter 10 141 141
- 142 Chapter 10 142
- Chapter 10 143 143
- 144 Chapter 10 144
- Chapter 10 145 145
- Get the results 146
- 11 Example Test Scenarios 147
- 148 Chapter 11 148
- Example Test Scenarios 148
- Calibration Example 149
- Chapter 11 151 151
- 152 Chapter 11 152
- Chapter 11 153 153
- 154 Chapter 11 154
- Verification Example 155
- Creating Waveforms 156
- Chapter 11 157 157
- 158 Chapter 11 158
- Chapter 11 159 159
- 160 Chapter 11 160
- Setting Up the DUT 161
- 162 Chapter 11 162
- Chapter 11 163 163
- 164 Chapter 11 164
- Setting Up The Sequence 165
- 166 Chapter 11 166
- 168 Chapter 11 168
- Chapter 11 169 169
- 170 Chapter 11 170
- Commands 171
- Basic Transmit Power 172
- Chapter 12 173 173
- Basic transmit power results 174
- Basic Discrete PAvT 177
- Basic Discrete PAvT Results 178
- Basic IQ Data 179
- Basic IQ Data Results 180
- GSM/EDGE Programming Commands 181
- GSM/EDGE Programming 182
- Chapter 13 183 183
- PFER results 184
- GSM Loopback BER 186
- EDGE Power vs. Time (PvT) 187
- <rel_ampl> 188
- EDGE PvT results 189
- Chapter 13 191 191
- 192 Chapter 13 192
- EDGE EVM results 193
- Chapter 13 195 195
- 196 Chapter 13 196
- Chapter 13 197 197
- EDGE ORFS results 198
- EDGE Loopback BER 200
- W-CDMA Programming Commands 201
- Adjacent Channel Power (ACP) 202
- Chapter 14 203 203
- ACP results 204
- Spectrum Emissions Mask (SEM) 206
- Chapter 14 207 207
- SEM results 208
- Occupied Bandwidth (OBW) 209
- Modulation Accuracy 210
- Chapter 14 211 211
- Modulation Accuracy results 212
- QPSK EVM 214
- QPSK EVM results 215
- 216 Chapter 14 216
- Code Domain Power (CDP) 217
- CDP results 218
- Phase Discontinuity 219
- Phase Discontinuity results 220
- Loopback BER 222
- Loopback BER results 223
- 224 Chapter 14 224
- 230 Chapter 15 230
- OBW results 233
- 236 Chapter 15 236
- 1xEV-DO Programming Commands 239
- 244 Chapter 16 244
- Modulation Accuracy (Rho) 247
- 248 Chapter 16 248
- 252 Chapter 16 252
- LTE-FDD Programming Commands 253
- 258 Chapter 17 258
- 262 Chapter 17 262
- Chapter 17 263 263
- 264 Chapter 17 264
- Chapter 17 265 265
- 266 Chapter 17 266
- Chapter 17 267 267
- 268 Chapter 17 268
- Accuracy 272
- LTE-TDD Programming Commands 273
- Power vs. Time (PvT) 274
- Chapter 18 275 275
- PvT results 276
- 282 Chapter 18 282
- 286 Chapter 18 286
- Chapter 18 287 287
- 288 Chapter 18 288
- Chapter 18 289 289
- 290 Chapter 18 290
- Chapter 18 291 291
- 292 Chapter 18 292
- TD-SCDMA Programming Commands 297
- Chapter 19 299 299
- 300 Chapter 19 300
- TD-SCDMA PvT results 301
- Chapter 19 307 307
- SCPI only 312
- Chapter 19 315 315
- Loopback Bit Error Rate (BER) 318
- Chapter 20 323 323
- 324 Chapter 20 324
- LE In-band Emission 326
- LE In-band Emission results 327
- WLAN Programming Commands 329
- Chapter 21 331 331
- WLAN Programming Commands 331
- 334 Chapter 21 334
- Chapter 21 335 335
- 336 Chapter 21 336
- 338 Chapter 21 338
- Chapter 21 339 339
- MIMO EVM results 340
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