Agilent Technologies 8648A

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3-5

Installation

Connecting AC Power

Figure 3-2. Power Cable and Mains Plug

Main Page

Table of Contents3
Operation13
Quick Overview14
Power Key14
Display14
Function and Data Keys15
Increment Set Keys16
Knobs16
Memory16
Modulation Source17
1A. Operation Examples19
Setting the RF Output Signal21
Setting the Frequency21
Setting the Amplitude21
Turn on the RF Output21
Setting the Modulation22
Incrementing or Decrementing the RF Output Signal23
Preliminary Steps23
Using the Knob23
Using the Increment Keys23
Using the Memory Registers25
Saving Instrument Setting in Register Sequences26
Deleting a Register from the Sequence29
Renumbering the Registers in a Sequence30
Inserting a Register in a Sequence31
Offsetting the RF Output from a Reference34
Setting the Reference Value34
Offsetting the RF Output35
Holding the Output Attenuator Range37
Set the Amplitude Level37
Holding the Attenuator37
Adjusting the Amplitude38
Setting a User Selectable Modulated Frequency and Waveform (Option 1E2 or 1EP Only)39
Setting the Modulation Level39
Setting the Modulated Waveform39
Setting the Modulated Frequency40
Signaling a Numeric-Type FLEX Pager (Option 1EP Only)41
Setting up Pager Encoding41
Entering Pager Encoding Settings42
Selecting the Format Settings42
Selecting the Data Rate and Pager Type Settings43
Selecting the Message Settings44
Selecting the Transmission Repetitions and Amplitude44
Selecting the Pager Capcode (Address)45
Selecting the Protocol Settings46
Selecting the Roaming Mode Settings47
Encoding47
1B. Operation Reference49
Frequency and Amplitude50
Knob50
Digit-Select Arrow Keys50
Ref Set50
Ref On/Off51
Function52
Frequency52
Amplitude53
Fm, am53
Setting up the Pager Encoder54
Pulse Modulation77
Increment Set79
Data80
Instrument Preset82
Gpib86
Memory87
Modulation Source91
RF Output95
Rear Panel97
Remote Interface (Accessory)99
Memory Interface (Accessory)101
Front Panel Operation Messages104
GPIB Command Messages107
GPIB Execution Errors110
GPIB Device-Specific Errors111
GPIB Query Errors112
Service Messages113
Phase Modulation191
Service191
Recommended Test Equipment191
Post-Repair194
Safety Notes197
Overview202
A1 Front Panel203
A2 Power Supply205
A3 Motherboard206
A4 Reference207
A5 Sig Gen Synth208
A6 Output (8648A)209
A6 Output (8648B/C210
A7 Attenuator (8648A)211
A10 Frequency Extension (8648B/C212
A11 Attenuator (8648B/C213
A12 Reverse Power Protection(8648B/C214
A13 Pulse Modulator (8648B/C/D Option 1E6)215
A14 Modulation Generator (Option 1E2)216
A30 Pager Encoder (8648A Option 1EP)217
Troubleshooting Checklist220
AC Mains (Line) Fuse Removal221
To Remove the Fuse221
Modulation Test Points and Power Supply Leds222
Power Supply Distribution223
Replaceable Parts241
Assembly Replacements241
8648A Replaceable Parts244
8648B/C/D Replaceable Parts250
Adjustments257
Test Equipment258
Equipment Setup for Automated Tests258
Test Point Extender258
Manual Adjustments260
Internal Reference Oscillator Adjustment261
Pager Encoder Timebase Frequency Adjustment263
Automated Adjustments265
AM Level and Distortion (8648A Only)266
AM Level (8648B/C/D Only)268
Detector Offset (8648A Only)270
Output Level (8648A Only)271
AM Level: FE (8648B/C/D Only)272
Predistortion and Detector Offset (8648B/C/D Only)274
Prelevel (8648B/C/D Only)275
Output Level: Frequency Extension Calibration (8648B/C/D Only)276
AM Modulator (8648A Only)277
Time Base DAC (All 8648A/B/C/D)279
Motherboard Audio Path (All 8648A/B/C/D)280
DCFM (All 8648A/B/C/D)282
Audio Generator (Options 1E2 and 1EP Only)283
HF Power Level Accuracy (All 8648A/B/C/D)284
LF Output Level (most 8648B/C/D)287
LF Power Level Accuracy (most 8648B/C/D)288
FSK Deviation (Option 1EP Only)290
Filter Path (Option 1EP Only)291
Agilent Service Support Software292
Required Test Equipment292
Installing the Software293
Uninstalling the Software297
Service Support Software Administration298
Running the Service Support Software309
Motherboard Repair Utility314
Performance Tests319
Calibration Cycle320
Required Test Equipment321
Performance Test Descriptions324
Manual Performance Tests324
Automated Performance Tests324
FM Accuracy Performance Test325
Connect the Test Equipment325
Configure the Measuring Receiver325
Configure the 8648325
Measure Deviations325
Test Record325
8648B/C/D Only326
Connect the Test Equipment326
Configure the Synthesized Signal Generator326
Measure Deviations326
Test Record327
FM Accuracy Performance Test (Option 1E2 Only)328
Connect the Test Equipment328
Configure the Measuring Receiver328
Configure the 8648328
Measure Deviations328
Test Record329
8648B/C/D Option 1E2 Only329
Connect the Test Equipment329
Configure the Synthesized Signal Generator329
Measure Deviations330
Test Record330
FM Distortion Performance Test331
Connect the Test Equipment331
Configure the Measuring Receiver331
Configure the Audio Analyzer331
Configure the 8648331
Measure Distortion332
Test Record332
8648B/C/D Only332
Connect the Test Equipment332
Configure the Synthesized Signal Generator333
Measure Deviations333
Test Record333
AM Accuracy Performance Test334
Connect the Test Equipment334
Configure the Measuring Receiver334
Configure the 8648334
Measure Depths334
Test Record334
AM Accuracy Performance Test (Option 1E2 Only)335
Connect the Test Equipment335
Configure the Measuring Receiver335
Configure the 8648335
Measure Depths335
Test Record336
AM Distortion Performance Test337
Connect the Test Equipment337
Configure the Measuring Receiver337
Configure the Audio Analyzer337
Configure the 8648337
Measure Distortion Amplitudes338
Test Record338
Phase Modulation Distortion Performance Test339
Connect the Test Equipment339
Configure the Measuring Receiver339
Configure the Audio Analyzer339
Configure the 8648339
Measure Distortion340
Test Record340
8648B/C/D Only340
Connect the Test Equipment340
Configure the Synthesized Signal Generator341
Measure Deviations341
Test Record341
Residual FM Performance Test342
Connect the Test Equipment342
Configure the Measuring Receiver342
Configure the Audio Analyzer343
Configure the Synthesized Signal Generator343
Configure the 8648343
Measure Deviations343
Test Record343
Harmonics Performance Test344
Connect the Test Equipment344
Configure the Spectrum Analyzer344
Configure the 8648344
Measure Harmonic Levels344
Test Record344
Spurious Performance Test345
Connect the Test Equipment345
Configure the Spectrum Analyzer345
Configure the 8648345
Measure Spurious Levels345
Test Record345
DC FM Frequency Error Performance Test346
Connect the Test Equipment346
Configure the Frequency Counter346
Configure the 8648346
Measure Deviations346
Test Record347
RF Level Accuracy Performance Test348
Description348
Connect the Test Equipment348
Configure the Measuring Receiver348
Configure the 8648349
Measure Amplitudes349
Test Record349
8648B/C/D Only349
Connect the Test Equipment350
Configure the Power Meter350
Configure the 8648B/C/D350
Measure High Level Power Accuracy (≤ 13 Dbm)350
Test Record350
Configure the 8648 Option 1EA351
Measure the High Power Level Accuracy351
Test Record352
Configure the Power Meter352
Measure Low Level Power Accuracy (< −20 Dbm)352
Pulse Modulation On/Off Ratio Performance Test (Option 1E6 Only)353
Connect the Test Equipment353
Configure the Spectrum Analyzer353
Configure the 8648353
Measure the On/Off Ratio354
Test Record354
Pulse Modulation Rise Time Performance Test (Option 1E6 Only)355
Connect the Test Equipment355
Configure the Pulse Generator355
Configure the 8648355
Configure the Oscilloscope355
Measure the Rise Time356
Test Record356
Pager Encoder Timebase Accuracy Performance Test (Option 1EP Only)357
Connect the Test Equipment357
Configure the Frequency Counter357
Configure the 8648357
Measure the Frequency357
Test Record357
FSK Deviation Accuracy Performance Test (Option 1EP Only)358
Connect the Test Equipment358
Configure the Vector Signal Analyzer358
Measure FSK Deviation361
Test Record363
Internal Timebase: Aging Rate Performance Test (Option 1E5 Only)364
Description364
Connect the Test Equipment365
Configure the Oscilloscope365
Measure the Phase Change Time366
Test Record366
Power Level Accuracy Performance Test (Automated)367
Description367
Required Test Equipment367
Procedure367
8648A Test Record370
8648B Test Record390
8648C Test Record414
8648D Test Record440
Supplemental Verification Tests467
Required Test Equipment List468
CW Frequency Accuracy Supplemental Verification Test469
Connect the Test Equipment469
Configure the Frequency Counter469
Configure the 8648469
Measure Frequency Accuracy469
Test Record470
Khz RF Level Accuracy Supplemental Verification Test474
Connect the Test Equipment474
Configure the Multimeter (DMM)474
Configure the 8648474
Measure RF Levels474
Test Record475

Agilent Technologies 8648A - Page 168

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