Agilent Technologies Cell Phone S GSM Manuale Utente Pagina 174
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4-68
Screens
Measurement Sync
17. Sync Pattern
Start Position
This field is only displayed when Burst Type is set to User Def. It selects the starting
bit position of a user defined synchronization pattern.
Range 0 to 147.
18. Sync Status This field displays problems that were detected during digital demodulation or DSP
analyzer measurements.
See Also Making Measurements: Solving Problems Messages
19. Trig Delay This field sets the time delay between a valid trigger event and the beginning of a
measurement.
Range 0 to 5000.00 µs.
20. Trig Qual This field selects whether a trigger qualifier will be used.
Choices Normal, no trigger qualifier is used.
RF Power, trigger events will only be valid when RF power is
detected at the selected input. If no RF Power is present at the time
of the trigger, the measurement will re-arm after seven timeslots.
NOTE If no measurements are being made while in continuous (Cont), check Trig Qual (see
Screens:RF Generator/RF Analyzer). If it is set to RF Power, change it to Normal.
21. Trig Source This field selects the source of the trigger. When Activated (see Screens: Cell
Configuration), triggers for digital demodulation are generated internally.
Choices Ext Demod selects triggering through RP_DMOD_TRIG on the
rear-panel SYSTEM BUS CONNECTOR.
RF Rise selects triggering when the rising edge of an RF signal is
detected. RF Rise is used with pulsed RF input signals.
Ext Meas selects triggering through the MEASURE TRIGGER IN
front panel connector.
- User’s Guide 1
- Contents 3
- Warranty 9
- Limitation of Warranty 9
- Certification 10
- Assistance 10
- Restricted Rights Legend 11
- Statement of Compliance 11
- Sound Emission 12
- Herstellerbescheinigung 12
- Declaration of Conformity 13
- Safety Information 14
- Safety Symbols 16
- Sales and Service Offices 17
- Latin America: 18
- United States: 18
- Description 19
- Typeface Conventions 20
- Using this Chapter 22
- Fuses and Power Cords 23
- Power Cords 24
- Installation Overview 25
- General Information 28
- Making Measurements 29
- Using This Chapter 30
- ACTIVE CELL 33
- SHIFT CELL CONFIG 35
- CELL CNTL ORG CALL 35
- TEST MODE 37
- ORG CALL END CALL 39
- CW GENERATOR 40
- Measurements 41
- CELL CNTL 42
- -27.5 dB -32 dB -51 dB -70 dB 51
- Figure 2-16 59
- MEAS SYNC 60
- Trigger Range For Pulsed RF 61
- SHIFT CELL CNTL 65
- Advanced Features 67
- TION=9C hex (Bit 0 - 157) 70
- About This Chapter 77
- Setting up the Tests 78
- Getting the Right Equipment 79
- Understanding the Tests 82
- Understanding Test Failures 88
- Accuracy (dB) 94
- Power (dBm) 94
- Verifying Performance 106
- Field Types 108
- Bit Error 114
- Bit Error 2 117
- Cell Configuration - GSM 900 122
- Cell Control - Active Cell 133
- 27.9 to +41.0 dBm 135
- Cell Control - Active Cell + 137
- Cell Control - Test Mode 139
- Cell Control - CW Generator 141
- Cell Control 2 143
- RCV CALL 145
- Configure 155
- CW Measurement 160
- Fast Bit Error 162
- I/O Configuration 165
- Measurement Sync 170
- MS Information / Signaling 176
- Oscilloscope, Main Controls 181
- Oscilloscope, Marker Controls 186
- Phase/Freq, Phase Err 197
- Phase/Freq, Data Bits 199
- Pwr Ramp: Rise Edge 201
- Pwr Ramp, Top 2 dB 203
- Pwr Ramp, Fall Edge 205
- Pwr Ramp: Summary 207
- To escape, press 224
- SMS Cell Broadcast 225
- Function Keys 239
- INCR SET 242
- ORG CALL 242
- SHIFT INCR÷10 244
- SHIFT RECALL 245
- Local Keys 246
- Global Keys 247
- Units Keys 248
- Connectors 249
- Timing Diagrams 275
- Messages 285
- Communication Failures 286
- Firmware Error 287
- Sync Status 288
- Protocol Error Messages 289
- Disconnects 292
- Instrument BASIC 297
- Overview 298
- Loading, Storing, and Running 306
- LOCAL SHIFT CANCEL 307
- SHIFT CANCEL 311
- Entering and Editing Programs 312
- Memory Cards 316
- 1 ! FM_TESTS 340
- APPENDIX A 341
- Equipment Required 343
- Agilent 8922M 344
- HP/Agilent 37900D 344
- How to Obtain a Protocol Log 348
- Signal OK 349
- Additional Information 351
- Glossary 365
- Index-10 380
- Index-11 381
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