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Agilent Technologies
Portable Generator
n5181a
Page 12 (Signal Generator Overview)
Agilent Technologies n5181a - Signal Generator Overview
175 pages
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Agilent
N5181A/82A
MXG
Signal
Generators
User’
s
Guide
1
1
Signal Generator Overvi
ew
•
Signal Generato
r Features
on page
2
•
Front P
a
nel Ov
ervie
w
on p
age 3
•
Front P
anel Displa
y
on page 7
•
Rear Panel Overvie
w
on page 9
11
13
Table of Contents
Main Page
Default Chapter
4
Table of Contents
4
Signal Generator Overview
12
Signal Generator Overview
13
Signal Generator Features
13
Front Panel Overview
14
Host USB
14
Display
14
Softkeys
14
Numeric Keypad
14
Arrows and Select
14
Page up
15
Menus
15
Trigger
15
Local Cancel/(Esc)
15
Help
15
Preset and User Preset
15
RF Output
16
RF On/Off and LED
16
Mod On/Off and LED
16
Page down
16
I Input (Vector Models Only)
16
Q Input (Vector Models Only)
16
Knob
17
Incr Set
17
Return
17
More and LED
17
Power Switch and Leds
17
Front Panel Display
18
Active Function Area
18
Frequency Area
18
Annunciators
18
Amplitude Area
19
Error Message Area
19
Text Area
19
Softkey Label Area
19
Rear Panel Overview
20
AC Power Receptacle
20
Sweep out
20
Pulse
21
Trig in
21
Trig out
21
Ref in
21
Mhz out
22
Gpib
22
Lan
22
Device USB
22
Digital Modulation Connectors (Vector Models Only)
23
I Out, Qout, Out, out
23
Ext Clock
23
Event 1
23
Pat Trig in
24
Digital Bus I/O
24
Aux I/O
24
Setting Preferences & Enabling Options
27
User Preferences
27
Display Settings
27
Power on and Preset
28
Front Panel Knob Resolution
28
Setting Time and Date
29
Upgrading Firmware
29
Remote Operation Preferences
30
Configuring the GPIB Interface
30
Configuring the LAN Interface
31
Enabling LAN Services: Browser, Sockets, and VXI-11
31
Enabling an Option
32
Viewing Options and Licenses
32
Basic Operation
34
Presetting the Signal Generator
34
Viewing Key Descriptions
34
Entering and Editing Numbers and Text
35
Entering Numbers and Moving the Cursor
35
Entering Alpha Characters
35
Example: Using a Table Editor
36
Setting Frequency and Power (Amplitude)
37
Example: Configuring a 700 Mhz, −20 Dbm Continuous Wave Output
37
Configuring a Swept Output
38
Step Sweep
39
List Sweep
40
Example: Using a Single Sweep
43
Example: Manual Control of Sweep
44
Routing Signals
44
Modulating the Carrier Signal
45
Example
45
Viewing, Saving, and Recalling Data
46
Viewing a Stored File
47
Saving and Recalling Data
48
Working with Instrument State Files
49
Selecting Internal or External Media
52
Reading Error Messages
53
Error Message Format
53
Optimizing Performance
54
Using User Flatness Correction
55
Basic Procedure
55
Example: a 500 Mhz to 1 Ghz Flatness Correction Array with 10 Correction Values
56
Recalling and Applying a User Flatness Correction Array
57
Using Unleveled Operating Modes
58
ALC off Mode
58
Power Search Mode
59
Using an Output Offset, Reference, or Multiplier
60
Setting an Output Offset
60
Setting an Output Reference
61
Setting a Frequency Multiplier
62
Using Analog Modulation (Option UNT Only)
64
The Basic Procedure
65
Using an External Modulation Source
66
Removing a DC Offset
66
Using Pulse Modulation (Option UNU)
69
Pulse Characteristics
70
The Basic Procedure
72
Example
72
Basic Digital Operation-No BBG Option Installed
74
I/Q Modulation
75
Configuring the Front Panel Inputs
76
Basic Digital Operation (Option 651/652/654)
79
Waveform File Basics
79
Signal Generator Memory
79
Dual ARB Player
79
Storing, Loading, and Playing a Waveform Segment
81
Storing/Renaming a Waveform Segment to Non-Volatile Memory (Internal or External Media)
81
Loading a Waveform Segment into BBG Media (Volatile Memory)
82
Playing a Waveform Segment
82
Setting the Baseband Frequency Offset
83
Waveform Sequences
85
Creating a Sequence
86
Viewing the Contents of a Sequence
87
Editing a Sequence
87
Playing a Sequence
88
Saving a Waveform's Settings & Parameters
89
Viewing and Modifying Header Information
90
Viewing & Editing a Header Without Selecting the Waveform
92
Using Waveform Markers
93
Waveform Marker Concepts
94
Accessing Marker Utilities
98
Viewing Waveform Segment Markers
99
Clearing Marker Points from a Waveform Segment
99
Setting Marker Points in a Waveform Segment
100
Viewing a Marker Pulse
103
Using the RF Blanking Marker Function
104
Setting Marker Polarity
105
Controlling Markers in a Waveform Sequence
106
Using the EVENT Output Signal as an Instrument Trigger
108
Triggering a Waveform
109
Trigger Type
110
Trigger Source
111
Example: Segment Advance Triggering
112
Example: Gated Triggering
113
Example: External Triggering
115
Clipping a Waveform
116
How Power Peaks Develop
117
How Peaks Cause Spectral Regrowth
119
How Clipping Reduces Peak-To-Average Power
120
Configuring Circular Clipping
123
Configuring Rectangular Clipping
124
Scaling a Waveform
125
How DAC Over-Range Errors Occur
127
How Scaling Eliminates DAC Over-Range Errors
128
Setting Waveform Runtime Scaling
129
Setting Waveform Scaling
130
I/Q Modulation
132
Using the Rear Panel I and Q Outputs
133
Configuring the Front Panel Inputs
135
I/Q Adjustments
136
I/Q Calibration
138
Adding Real Time Noise to a Signal (Option 403)
140
Adding Real- Time Noise to a Dual ARB Waveform
141
Using Real Time I/Q Baseband AWGN
143
Understanding Memory Types
145
Working in a Secure Environment
147
Removing Data from Memory (Option 006 Only)
147
Erase All
147
Erase and Overwrite All
148
Erase and Sanitize All
148
Secure Mode
148
Securing a Nonfunctioning Instrument
149
Using the Secure Display (Option 006 Only)
150
Troubleshooting
152
Display
153
The Display Is too Dark to Read
153
Signal Generator Lock-Up
153
Troubleshooting
153
RF Output
154
No RF Output
154
Power Supply Shuts down
154
No Modulation at the RF Output
154
RF Output Power too Low
154
Distortion
154
Signal Loss While Working with a Spectrum Analyzer
155
Signal Loss While Working with a Mixer
155
Sweep
157
Cannot Turn off Sweep
157
Sweep Appears Stalled
157
Incorrect List Sweep Dwell Time
157
List Sweep Information Is Missing from a Recalled Register
157
Amplitude Does Not Change in List or Step Sweep
157
Internal Media Data Storage
158
Instrument State Saved but the Register Is Empty or Contains the Wrong State
158
External Media Data Storage
158
Instrument Recognizes External Media Connection, but Does Not Display Files
158
Preset
158
The Signal Generator Does Not Respond
158
Pressing Preset Performs a User Preset
158
Error Messages
159
Error Message Types
159
Error Message File
159
Front Panel Tests
160
Self Test
160
Licenses
161
A Time-Based License Quits Working
161
Cannot Load a Time-Based License
161
Contacting Agilent Technologies
162
Returning a Signal Generator to Agilent
162
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