Agilent Technologies 11867A? Instrukcja Obsługi Strona 88
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90 Chapter 5
Spectrum Analyzer
Measuring a Low−Level Signal
Spectrum Analyzer
Press Meas Setup, Avg Number, 10, Enter.
Press
Avg Mode, Exponential.
Press
Trace/Detector, Average.
Step 8. To see the signal more clearly, set the attenuation to 0 dB:
Press
AMPTD Y Scale, Elect Atten, 0, dB.
Figure 5-14 shows 0 dB input attenuation.
Figure 5-14 Measuring a Low-Level Signal Using 0 dB Attenuation
Step 9. Set the attenuation to 20 dB: (as shown in Figure 5-15)
Press
AMPTD Y Scale, Elec Atten, 20, dB.
Note that increasing the attenuation moves the noise floor closer to the
signal level.
Figure 5-15 Measuring a Low-Level Signal
- 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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