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4-206 Agilent E6432A Microwave Synthesizer User’s Guide
HPE6432_SetQAttenuation
ViStatus HPE6432_SetQAttenuation (ViSession
instrumentHandle, ViUInt16 qAttenuation);
Purpose
This function sets the level of Q Attenuation that is used to reduce the
level of the signal being applied to the mixer located within the I/Q
modulator circuitry. This attenuator can reduce the signal level in 2 dB
steps and can be adjusted for up to 12 dB of attenuation.
Changes made to Q Attenuation should also be made to I Attenuation.
Usually the I and Q signal paths will have the same gain although they
are individually adjustable.
Parameter List
instrumentHandle
Variable Type ViSession
This is the ViSession handle that is obtained from the Initialize
function. The instrumentHandle identifies a particular instrument
session.
qAttenuation
Variable Type ViUInt16
This parameter specifies a value for Q Attenuation.
Allowable values: 0, 2, 4, 6, 8, 10, 12
Return Value
This parameter reports the return status of this function.
To obtain further information about the status that is returned, call the
Error Message function or refer to “Error-Code and Fail-Code
Messages” on page 3-93.
Related Topics
HPE6432_GetQAttenuation
- Agilent Technologies 1
- E6432A Microwave Synthesizer 1
- Limitation of Warranty 3
- Exclusive Remedies 3
- In This Book 4
- Contents 10
- Installation 15
- Overview 16
- Prior to Installation 17
- VISA 1.1) 21
- VISA Library 24
- Synthesizer 25
- VXIplug&play Driver 27
- PCI to IEEE-1394 Interface 34
- Generator 36
- Produce Radar Simulations 37
- PCI-MXI-2 Interface 38
- Arbitrary Waveform Generators 40
- Embedded PC Controller) 43
- Controller) 44
- Arbitrary Waveform Generator 46
- Description 48
- Required Test Equipment 48
- Equipment Setup 48
- Maximum Power Measurement 50
- Power Flatness Measurement 51
- Test 2. AM Accuracy 52
- AM Accuracy Measurement 54
- Esb dB()Ec dB()20 log m 2⁄=– 56
- Test 3. FM Accuracy 57
- 33120A Setup Summary 58
- 8563A Setup Summary 59
- Measurement Summary 59
- Table 1-4 60
- Test 5. Harmonics 64
- Harmonics Measurement 65
- Test 6. External Leveling 66
- External Leveling Measurement 68
- Test 7. I/Q Functionality 69
- Table 1-7 73
- Hardware Front Panel 74
- Connectors 74
- Access LED 77
- Error LED 77
- Failed LED 78
- TTL Trig In 79
- TTL Trig Out 79
- TTL Sync In 79
- TTL Sync Out 79
- 10 MHz In 80
- 10 MHz Out 80
- AM Input 81
- FM Input 84
- PULSE Input 86
- Ext ALC Input 87
- I/Q Inputs 88
- 300 MHz IF In 88
- 1200 MHz Reference Out 89
- RF Output 89
- Startup Error Dialog Box 93
- Unlocked Error Indicator 94
- Unleveled Error Indicator 95
- Atten Lock Indicator 96
- Ext Ref Indicator 97
- RF Output Controls 100
- Soft Front Panel Help 101
- Frequency Control 102
- Frequency Units 103
- Arrow Keys 104
- Output Power Control 105
- Attenuation Control 107
- ALC Power Control 108
- RF ON/OFF Control 109
- Reset Control 110
- Leveling (ALC) Controls 111
- Understanding the ALC System 112
- ALC System Diagram 114
- Internal Leveling Point 115
- External Leveling Point 116
- ALC On/Off 117
- Power Search 118
- Coupled Operation 119
- Uncoupled Operation 120
- Modulation Controls 121
- FM (On/Off) 122
- Pulse Modulation (On/Off) 122
- I/Q (On/Off) 123
- IF (On/Off) 123
- Pull Down File Menu 124
- Pull Down Edit Menu 126
- Cut List Item 127
- Paste Above List Item 127
- Paste Below List Item 128
- Delete List Item 128
- Pull Down View Menu 129
- Configuration Dialog Box 130
- Lock RF Attenuator 132
- 10 MHz Ref 132
- Settling Time 132
- ALC Bandwidth 135
- AM Mode (Linear/Exponential) 136
- Dwell Time 137
- Trigger Input 138
- Trigger Out (Front Panel) 139
- Trigger Out (VXI Backplane) 140
- Sync Input 141
- Sync Out (Front Panel) 142
- Sync Out (VXI Backplane) 143
- List Dialog Box 149
- Start - List Playing Control 150
- Stop - List Playing Control 150
- Sync - List Playing Control 151
- Repeat - List Playing Control 151
- Del - List Editing Control 156
- Step - of a List Point 156
- Frequency - of a List Point 156
- ALC Power of a List Point 157
- Attenuation of a List Point 158
- Flags - of a List Point 158
- Sync Out - of a List Point 159
- Blanking - of a List Point 159
- Related Topics 164
- List Dialog Box Controls 164
- Frequency Start 167
- Frequency Stop 167
- Frequency Step 167
- ALC Power Start 168
- ALC Power Stop 168
- ALC Power Step 169
- Placement Control 169
- Parameter 170
- Don’t Specify Step 170
- Don’t Specify Start 171
- Don’t Specify Stop 172
- Don’t Specify # of Steps 172
- # of Steps 176
- Error LED Indicator 178
- Failed LED Indicator 179
- Copy Display 180
- Clear Display 180
- Read and Clear Error Queue 181
- Error-Code Messages 183
- Fail-Code Messages 197
- Queue Messages 202
- Pull Down Diagnostics Menu 204
- Full Self Test With RF On 205
- View Last Quick Self Test 205
- View Last Full Self Test 206
- Pull Down Calibration Menu 207
- Detector Linearization 209
- Linearization 210
- Calibration 214
- I/Q Calibration Example 221
- Understanding I/Q Calibration 224
- (Osi and Osq) 225
- I/Q Calibration Dialog Box 227
- Programming Information 237
- Introduction to Programming 238
- Getting Started with LabVIEW 239
- Visual C++ Programing 242
- Synthesizer When Set to Be 244
- Auto-Configured (FF) 244
- Opening an Instrument Session 245
- Opening a Session Using C 246
- Closing an Instrument Session 247
- Querying the Instrument 247
- Events and Errors 248
- Prototypes) 249
- Session Control Functions 259
- HPE6432_SetIOffsetDac 264
- HPE6432_GetIOffsetDac 264
- HPE6432_SetQOffsetDac 264
- HPE6432_GetQOffsetDac 264
- HPE6432_SetIOffsetAdjust 265
- HPE6432_GetIOffsetAdjust 265
- HPE6432_SetQOffsetAdjust 265
- HPE6432_GetQOffsetAdjust 265
- HPE6432_ClearErrors 270
- HPE6432_ClearList 271
- HPE6432_close 272
- HPE6432_error_message 278
- HPE6432_error_query 279
- HPE6432_GetAlcBandwidth 286
- HPE6432_GetAmMode 287
- HPE6432_GetAmpModState 288
- HPE6432_GetAtten 290
- HPE6432_GetAttenAuto 291
- HPE6432_GetAttenuationLimits 292
- HPE6432_GetBlankingState 293
- HPE6432_GetDeepAmState 294
- HPE6432_GetDwellTime 295
- HPE6432_GetErrorQueueCount 296
- HPE6432_GetExtIfInvert 297
- HPE6432_GetExtIfState 298
- HPE6432_GetExtSyncOutput 299
- HPE6432_GetExtTriggerOutput 300
- HPE6432_GetFlatnessCalData 301
- HPE6432_GetFreqAlcAtten 303
- HPE6432_GetFreqModState 305
- HPE6432_GetFrequencyLimits 306
- HPE6432_GetIAttenuation 307
- HPE6432_GetICal 308
- HPE6432_GetIfAtten 309
- HPE6432_GetIfLowerSidebandDac 310
- HPE6432_GetIfUpperSidebandDac 311
- HPE6432_GetIGainAdjust 312
- HPE6432_GetIGainDac 313
- HPE6432_GetInterruptFlags 314
- HPE6432_GetIOffsetAdjust 315
- HPE6432_GetIOffsetDac 316
- HPE6432_GetIqAdjustState 317
- HPE6432_GetIqInput 318
- HPE6432_GetIqModState 319
- HPE6432_GetLevelingPoint 322
- HPE6432_GetLevelingState 323
- HPE6432_GetListIndex 324
- HPE6432_GetLongBlankingState 326
- HPE6432_GetLongBlankingTime 327
- HPE6432_GetNormalBlankingTime 328
- HPE6432_GetNumExtDetCalPoints 329
- HPE6432_GetOptionString 335
- HPE6432_GetOutputPower 336
- HPE6432_GetPowerLimits 337
- HPE6432_GetPulseModState 339
- HPE6432_GetQAttenuation 340
- HPE6432_GetQCal 341
- HPE6432_GetQGainAdjust 342
- HPE6432_GetQGainDac 343
- HPE6432_GetQOffsetAdjust 343
- Adjustment DAC function 344
- HPE6432_GetQOffsetDac 345
- HPE6432_GetQuadratureAdjust 346
- HPE6432_GetQuadratureDac 347
- HPE6432_GetRefSource 348
- HPE6432_GetRfOutputState 349
- HPE6432_GetSerialNumber 350
- HPE6432_GetSettlingTime 351
- HPE6432_GetSyncInput 352
- HPE6432_GetSyncOutState 353
- HPE6432_GetTriggerInput 354
- HPE6432_GetUserBlankingState 355
- HPE6432_GetVbloDac 356
- HPE6432_GetVxiSyncOutput 357
- HPE6432_GetVxiTriggerOutput 358
- HPE6432_init 361
- HPE6432_IqCalibrate 364
- HPE6432_IqRestoreFactoryCal 365
- HPE6432_IsListRunning 369
- HPE6432_PowerSearch 370
- HPE6432_PutFlatnessCalData 372
- HPE6432_ReadHwState 374
- HPE6432_ReadInterruptHwState 375
- HPE6432_ReadListData 376
- HPE6432_readStatusByte_Q 379
- HPE6432_reset 380
- HPE6432_ResetExtDetCalData 381
- HPE6432_revision_query 382
- HPE6432_RunList 383
- HPE6432_RunListAbort 386
- HPE6432_SelfTest 387
- HPE6432_self_test 389
- HPE6432_SetActiveVxiInt 391
- HPE6432_SetAlcAtten 392
- HPE6432_SetAlcBandwidth 394
- HPE6432_SetAmMode 396
- HPE6432_SetAmModState 398
- HPE6432_SetAtten 400
- HPE6432_SetAttenAuto 401
- HPE6432_SetBlankingState 402
- HPE6432_SetDeepAmState 405
- HPE6432_SetDwellTime 406
- HPE6432_SetExtIfInvert 407
- HPE6432_SetExtIfState 408
- HPE6432_SetExtSyncOutput 409
- HPE6432_SetExtTriggerOutput 411
- HPE6432_SetFreqAlcAtten 413
- HPE6432_SetFreqAlcAttenBit 415
- Bit 0=1 Reserved 416
- Variable Type ViUInt16 417
- HPE6432_SetFreqModState 419
- HPE6432_SetFrequency 420
- HPE6432_SetIAttenuation 421
- HPE6432_SetICal 422
- HPE6432_SetIfAtten 423
- HPE6432_SetIGainAdjust 424
- HPE6432_SetIGainDac 425
- HPE6432_SetIOffsetAdjust 426
- HPE6432_SetIOffsetDac 427
- HPE6432_SetIqAdjustState 428
- HPE6432_SetIqInput 429
- HPE6432_SetIqModState 430
- HPE6432_SetLevelingPoint 431
- HPE6432_SetLevelingState 433
- HPE6432_SetLongBlankingState 435
- HPE6432_SetLongBlankingTime 438
- HPE6432_SetNormalBlankingTime 439
- HPE6432_SetOutputPower 440
- HPE6432_SetPulseModState 441
- HPE6432_SetQAttenuation 442
- HPE6432_SetQCal 443
- HPE6432_SetQGainAdjust 444
- HPE6432_SetQGainDac 445
- HPE6432_SetQOffsetAdjust 446
- HPE6432_SetQOffsetDac 447
- HPE6432_SetQuadratureAdjust 448
- HPE6432_SetQuadratureDac 449
- HPE6432_SetRefSource 450
- HPE6432_SetRfOutputState 451
- HPE6432_SetSettlingTime 452
- HPE6432_SetSyncInput 454
- HPE6432_SetSyncOutState 456
- HPE6432_SetTriggerInput 458
- HPE6432_SetupCalExtDetPoint 460
- HPE6432_SetupFlatnessCalPoint 463
- HPE6432_SetUserBlankingState 465
- HPE6432_SetVbloDac 466
- HPE6432_SetVxiSyncOutput 467
- HPE6432_SetVxiTriggerOutput 469
- HPE6432_WaitForSettled 471
- HPE6432_WriteFlatnessCalData 472
- HPE6432_WriteListData 474
- HPE6432_WriteListPoint 476
- HPE6432_WriteListPoints 479
- Variable Type ViInt16[] 481
- SCPI Interfaces and Commands 483
- INITiate[:IMMediate] 484
- Full Command Set 484
- Applications and Example 491
- Programs 491
- Example Program RunList.cpp 493
- Example Program Step.cpp 495
- Trigger Input Mode 500
- Sync Input Mode 501
- Repeat Mode 502
- Interrupt Mode 503
- Input and Output Triggers 505
- HPE6432_GenerateManualSyncI 507
- Trig Out 508
- Sync Out 509
- Synthesizer Switching Speeds 510
- Specifications and 517
- Characteristics 517
- Unwanted Signals 522
- Power Supply Requirements 526
- AM Modulation 526
- FM Modulation 526
- List Mode Characteristics 529
- VXI Characteristics 530
- General Specifications 530
- Table 6-1 Contacting Agilent 533
- Downloads 534
- Index i 535
- Index iii 537
- Index v 539
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