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54 N9320A Spectrum Analyzer
3 Functions and Measurements
Measuring Phase Noise
Phase noise is a frequency domain measure of stability.
Phase noise is specified as single- sideband power in relation
to the fundamental RF output frequency. It is measured at
various offset frequencies from the carrier, normalized to a 1
Hz measuring bandwidth.
In this example the 50 MHz amplitude reference signal is
used as the fundamental signal.
1 Press > Preset (With Preset Type of Factory)
2 Connect a cable from the front panel CAL OUT to RF IN.
Press > Alignment > CAL OUT On
3 Press to auto- tune the signal to the center of display.
4 Press to place a marker on the peak of the signal.
5 Turn on the phase noise function to view the results:
Press
> Function > Phase Noise > Phase Noise (On)
6 Change the offset:
Press
> Function > Phase Noise > Offset Manual
Then select the offset by pressing the corresponding softkeys
under the Phase Noise menu.
Preset/
System
Preset/
System
Auto
Tune
Peak
Search
Marker
Marker
Marker D
Noise -97.91 dBc/Hz
20.000 kHz
- Agilent N9320A 1
- Spectrum Analyzer 1
- In This User’s Guide… 3
- N9320A Spectrum Analyzer 4
- Contents 5
- N9320A User’s Guide 6
- Agilent N9320A at a Glance 10
- Front Panel Overview 11
- Display Annotations 14
- Overview 1 15
- N9320A Spectrum Analyzer 7 15
- Rear Panel Overview 16
- N9320A Spectrum Analyzer 9 17
- ICES/NMB-001 17
- 10 N9320A Spectrum Analyzer 18
- 1Overview 18
- Getting Started 19
- Power Requirements 21
- AC Power Cords 22
- Environmental Requirements 23
- Rack Mount 24
- Safety Notice 26
- Power on and Check 28
- Check for Instrument Messages 29
- Some helpful Tips 30
- Using an External Reference 31
- Firmware Revision 31
- Remote Control 32
- Functions and Measurements 33
- Making a Basic Measurement 34
- Setting up a User Preset 35
- Viewing a Signal 36
- Changing Reference Level 37
- Measuring Multiple Signals 38
- Using Marker Delta 40
- LF OUT RF OUT 50 42
- FUN CT IO N S 42
- > Mkr -> Ref Lel 45
- > Delta > Delta (On) 46
- Measuring a Low-Level Signal 47
- > Mkr -> CF 48
- Amplitude 49
- Trace Averaging 50
- 50.032500 MHz 52
- – 49.30 dBm 52
- Tracking Drifting Signals 54
- Signal Generator 59
- > Mkr -> Ref Lvl 60
- > Normal 60
- Measuring Phase Noise 62
- → 3) > Normalize (On) 64
- RF IN 50 69
- Saving a File 74
- Loading a File 76
- Copying a File 77
- Deleting a File 77
- 70 N9320A Spectrum Analyzer 78
- 3 Functions and Measurements 78
- Key Reference 79
- Auto Tune 83
- Back < 84
- AverageNumber 87
- Key access: > Avg Type 88
- Det/Display 89
- > Limits 92
- > Limits > Limit 1/2 92
- File/Print 96
- Frequency 102
- > Delta 105
- Sets the offset to + 106
- > More 107
- > More > Maker Table 107
- Marker-> 108
- > Tracking Generator 110
- Peak Search 114
- Preset/System 118
- Factory Preset State 119
- Sweep/Trig 125
- View/Trace 127
- 120 N9320A Spectrum Analyzer 128
- 4 Key Reference 128
- One-Button Measurements 129
- Channel Power 130
- Occupied BW 132
- 1 + f2)/2 and the 133
- > ACP 135
- (TOI) measurement computes 138
- Spectrum Emission Mask 140
- Key access: 141
- One-Button Measurements 5 143
- N9320A Spectrum Analyzer 135 143
- Instrument Messages 147
- Overview 148
- Command Errors 149
- Execution Conflict 151
- Device-Specific Errors 153
- In Case of Difficulty 157
- Check the Basics 158
- Read the Warranty 159
- Contact Agilent Technologies 160
- Menu Maps 161
- Amplitude Menu 162
- BW/Avg Menu 163
- Det/Display Menu 164
- File Menu (1 of 2) 165
- File Menu (2 of 2) 166
- Frequency Menu 167
- Marker Menu 168
- Marker-> Menu 169
- Measure Menu (1 of 2) 170
- Measure Menu (2 of 2) 171
- MODE Menu 172
- Name editor Menu 173
- Peak Search Menu 174
- Preset/System Menu 175
- SPAN Menu 176
- Sweep/Trig Menu 177
- View/Trace Menu 178
- N9320A User’s Guide 171 179
- 172 N9320A User’s Guide 180
- *N9320-90001* 182
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