Agilent Technologies E8257C PSG Podręcznik Użytkownika Strona 206
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196 Chapter 10
Troubleshooting
Data Storage Problems
Data Storage Problems
Registers With Previously Stored Instrument States are Empty
The save/recall registers are backed-up by a battery when line power to the signal generator is not
connected. The battery may need to be replaced.
To verify that the battery has failed:
1. Turn off line power to the signal generator.
2. Unplug the signal generator from line power.
3. Plug in the signal generator.
4. Turn on the signal generator.
5. Observe the display for error messages.
If either error message −311 or −700 is stored in the error message queue, the signal generator’s battery
has failed.
6. Refer to the Service Guide for battery replacement instructions.
Saved Instrument State, but Register is Empty or Contains Wrong State
If you select a register number greater than 99, the signal generator automatically selects register 99 to save
the instrument state.
If the register number you intended to use is empty or contains the wrong instrument state, recall register 99:
Press
Recall > 99 > Enter.
The lost instrument state may be saved there.
- User’s Guide 1
- Contents 10
- 1 Signal Generator Overview 11
- Firmware Upgrades 14
- Modes of Operation 15
- Front Panel 16
- Recall hardkey 17
- 8. Trigger 18
- 9. MENUS 18
- 10. Help 18
- 11. EXT 1 INPUT 18
- Mod On/Off hardkey 19
- 35. DATA CLOCK INPUT 22
- 36. SYMBOL SYNC INPUT 22
- 33. I/Q INPUTS 22
- 34. DATA INPUT 22
- Front Panel Display 23
- 3. Annunciators 24
- 5. Amplitude Area 26
- 6. Error Message Area 26
- 7. Text Area 26
- 8. Softkey Label Area 26
- Rear Panel 27
- 1. AC Power Receptacle 28
- 3. AUXILIARY INTERFACE 28
- 11. EVENT 1 30
- 12. EVENT 2 30
- 13. PATTERN TRIG IN 30
- 14. BURST GATE IN 30
- 15. AUXILIARY I/O 31
- 16. Digital Bus 32
- 17. WIDEBAND I INPUT 32
- 18. WIDEBAND Q INPUT 32
- 20. I OUT 32
- 21. I-bar OUT 33
- 22. Q OUT 33
- 23. Q-bar OUT 33
- 24. BASEBAND GEN REF IN 33
- 26. 10 MHz OUT 34
- 27. 10 MHz IN 34
- 28. 10 MHz EFC (Option UNR) 34
- 2 Basic Operation 35
- Using Table Editors 36
- Table Editor Softkeys 37
- Configuring the RF Output 38
- OFFS indicator 39
- Ampl Offset > 10 > dB 40
- RF On/Off 43
- Single Sweep 43
- Sweep Repeat Single Cont 43
- Sweep Type List Step 44
- Configure List Sweep 44
- Markers 50
- Turn Off Markers 52
- Sweep/List 52
- Configure Ramp/Step Sweep 52
- Freq Start 52
- Return > Sweep > Off 54
- Return > Sweep > Ampl 54
- Modulating a Signal 60
- Using Data Storage Functions 62
- Enabling Options 67
- 3 Optimizing Performance 69
- Using External Leveling 70
- Configure Cal Array 77
- GPIB Listener Mode 79
- 4 Analog Modulation 87
- Analog Modulation Waveforms 88
- Configuring AM 89
- Configuring FM 90
- Configuring ΦM 91
- Configuring Pulse Modulation 92
- Configuring the LF Output 93
- 86 Chapter 4 96
- Analog Modulation 96
- First-Level Softkey Men 99
- (Some ARB formats 99
- Amplitude hardkey menu 101
- Chapter 5 93 103
- 94 Chapter 5 104
- Select Waveform softkey 105
- ARB Off On to On 105
- Current waveform file type 107
- Waveform File Type 107
- Accessing the Dual ARB Player 109
- Creating Waveform Segments 110
- Playing a Waveform 112
- Editing a Waveform Sequence 112
- Renaming a Waveform Segment 113
- Using Waveform Markers 114
- To Verify Marker Operation 117
- Waveform Marker Concepts 118
- Using Waveform Triggers 121
- Using Waveform Clipping 122
- Waveform Clipping Concepts 123
- Chapter 5 117 127
- 118 Chapter 5 128
- Custom Arb Waveform Generator 129
- Overview 130
- −625 kHz and a 133
- Working with Filters 135
- Using a Predefined FIR Filter 136
- Edit Keys > Clear Text 141
- 132 Chapter 6 142
- Working with Symbol Rates 143
- 134 Chapter 6 144
- Chapter 6 135 145
- Working with Modulation Types 146
- Configuring Hardware 153
- To Set the ARB Reference 154
- Custom Real Time I/Q Baseband 155
- Working with Data Patterns 157
- Edit File 160
- Cursor moves to new position 161
- Position indicator changes 161
- Bits 4C through 4F inverted 162
- Hex Data changed 162
- Working with Burst Shapes 163
- Return > Return > 166
- Editing Keys > Clear Text 166
- To Adjust the I/Q Scaling 169
- Working with Phase Polarity 170
- Using Differential Encoding 175
- 1 > Enter 176
- +/- > 1 > Enter 176
- 2 > Enter 176
- 0 > Enter 177
- 168 Chapter 7 178
- Multitone Waveform Generator 179
- Freq Spacing > 1 > MHz 181
- Multitone Off On to On 181
- To View a Multitone Waveform 182
- Toggle State 183
- Edit Item > -10 > dB 184
- Edit Item > 123 > deg 184
- Apply Multitone 184
- Multitone 184
- 9 Two-Tone Waveform Generator 189
- To Create a Two-Tone Waveform 191
- To View a Two-Tone Waveform 192
- Chapter 9 183 193
- Two-Tone Waveform Generator 193
- Figure 9-3 193
- Chapter 9 185 195
- Figure 9-4 195
- Two Tone 196
- 10 Troubleshooting 197
- 188 Chapter 10 198
- Troubleshooting 198
- RF Output Power Problems 199
- Sweep Problems 204
- Configure Step Sweep 205
- Step Dwell softkey 205
- Data Storage Problems 206
- Cannot Turn Off Help Mode 207
- Signal Generator Locks Up 208
- Preset key 209
- Error Messages 210
- Error Message Format 211
- Error Message Types 212
- 204 Chapter 10 214
- , 29, 30 218
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