Agilent Technologies 11867A? Manual de servicio Pagina 81
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Chapter 5 83
Spectrum Analyzer
Measuring Multiple Signals
Spectrum Analyzer
Figure 5-8 Unresolved Signals of Equal Amplitude
Step 4. Change the resolution bandwidth (RBW) to 100 kHz so that the RBW
setting is less than or equal to the frequency separation of the two
signals:
Press
BW, Res BW (Manual), 100, kHz.
Notice that the peak of the signal has become flattened indicating that
two signals may be present.
Figure 5-9 Resolving Signals of Equal Amplitude
As the resolution bandwidth is decreased, resolution of the individual
signals is improved and the sweep time is increased. For fastest
measurement times, use the widest possible resolution bandwidth.
Under factory preset conditions, the resolution bandwidth is “coupled”
(or linked) to the span.
Since the resolution bandwidth has been changed from the coupled
value, a # mark appears next to Res BW in the lower-left corner of the
screen, indicating that the resolution bandwidth is uncoupled. (For
more information on resolution bandwidth, refer to the
Res BW
- Examples 1
- Technology Licenses 2
- Restricted Rights Legend 2
- Contents 5
- Introduction 9
- Initial Inspection 10
- Safety Information 12
- Lifting and Handling 16
- Product Safety Data Sheet 17
- Declaration of Conformance 18
- Chapter 1 21 19
- Installation and Setup 19
- 22 Chapter 1 20
- Chapter 1 23 21
- 24 Chapter 1 22
- Chapter 1 25 23
- 26 Chapter 1 24
- Power Requirements 25
- 28 Chapter 1 26
- Table 1-2 AC Power Cords 27
- Clock Battery Information 28
- Using an External Reference 31
- Firmware Revision 32
- Printer Setup and Operation 33
- Using the Soft Carrying Case 35
- 38 Chapter 1 36
- Options and Accessories 37
- Options (see page 41) 38
- Accessories (see page 47) 38
- Dual battery charger 40
- Chapter 2 43 41
- Option Descriptions 42
- 46 Chapter 2 44
- Accessories 45
- 75 Ohm Matching Transformer 46
- AC Probe 46
- AC Probe (Low Frequency) 46
- RF and Transient Limiters 47
- Power Splitters 47
- System II Bottom Feet kit 47
- Static Safe Accessories 47
- 50 Chapter 2 48
- Front and Rear Panel Features 49
- Front Panel Overview 50
- On/Standby 52
- RF OUTPUT 52
- Chapter 3 55 53
- 56 Chapter 3 54
- Chapter 3 57 55
- 58 Chapter 3 56
- Chapter 3 59 57
- 60 Chapter 3 58
- Rear-Panel Features 59
- 62 Chapter 3 60
- Key Overview 61
- Recommended Test Equipment 63
- Test Equipment 64
- Chapter 4 67 65
- 68 Chapter 4 66
- 70 Chapter 5 68
- Making a Basic Measurement 69
- 72 Chapter 5 70
- Viewing a Signal 72
- Marker ⇒, Mkr ⇒ RL 73
- 76 Chapter 5 74
- Measuring Multiple Signals 75
- Marker Delta 78
- 84 Chapter 5 82
- Chapter 5 87 85
- Measuring a Low−Level Signal 86
- Reducing Input Attenuation 87
- 92 Chapter 5 90
- Trace Averaging 91
- Chapter 5 95 93
- Chapter 5 101 99
- Chapter 5 105 103
- Spectrum Analyzer 103
- 108 Chapter 5 106
- Channel Analyzer Measurements 107
- 110 Chapter 6 108
- Measurements 109
- graph is also 111
- 2 High 111
- Stimulus Response 113
- Measurements (Option N8995A) 113
- 116 Chapter 7 114
- (Option N8995A) 114
- Two Port Insertion Loss 115
- One Port Insertion Loss 118
- 122 Chapter 7 120
- Return Loss 121
- Distance to Fault 123
- 128 Chapter 7 126
- Concepts 127
- 130 Chapter 8 128
- Chapter 8 131 129
- Trigger Concepts 130
- Chapter 8 133 131
- Stimulus Response Overview 132
- Normalization Concepts 132
- Chapter 8 135 133
- 136 Chapter 8 134
- Programming Examples 135
- 138 Chapter 9 136
- Requirements 137
- 140 Chapter 9 138
- Chapter 9 141 139
- Linking to VISA Libraries 140
- Chapter 9 143 141
- Example Program 142
- Opening a Session 143
- Device Sessions 143
- Addressing a Session 145
- Closing a Session 146
- Basic System Operations 147
- 150 Chapter 10 148
- System Reference Introduction 149
- Setting System References 150
- Printing a Screen To a File 151
- Saving Data 152
- File Naming Options 153
- Managing Media Types 155
- Saving the State 158
- Saving the Power-Up State 158
- Recalling the State 158
- Deleting States 160
- Viewing System Statistics 161
- Using the Option Manager 162
- Testing System Functions 163
- 166 Chapter 10 164
- Working with Batteries 165
- 168 Chapter 11 166
- Installing Batteries 167
- Viewing Battery Status 168
- Charging Batteries 170
- Recalibrating Batteries 172
- Battery Care 173
- Chapter 11 177 175
- Battery Specifications 176
- 180 Chapter 11 178
- Connector Care 179
- 182 Chapter 12 180
- Connectors 181
- Proper Connector Torque 182
- Connector Wear and Damage 182
- Cleaning Procedure 183
- 186 Chapter 12 184
- In Case of Difficulty 185
- Esc or it is 187
- Esc key will 187
- Check the Basics 188
- Read the Warranty 189
- Service Options 189
- Calling Agilent Technologies 189
- 192 Chapter 13 190
- Service Tag 191
- Packaging 192
- 196 Chapter 13 194
- Copyright Information 195
- Chapter 14 199 197
- 200 Chapter 14 198
- Chapter 14 201 199
- 202 Chapter 14 200
- Chapter 14 203 201
- 204 Chapter 14 202
- Chapter 14 205 203
- 206 Chapter 14 204
- Chapter 14 207 205
- 208 Chapter 14 206
- Chapter 14 209 207
- 210 Chapter 14 208
- Chapter 14 211 209
- 212 Chapter 14 210
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