Agilent-technologies AGILENT U2761A Bedienungsanleitung PDF herunterladen (Seite 57)

Features and Functions 2

U2761A User’s Guide 39

The duty cycle setting does not apply to a Square waveform

used as the modulating waveform for AM, FM, or PM. A 50%

duty cycle is always used for a modulating Square waveform.

The duty cycle setting applies only to a Square waveform

carrier.

Soft Front Panel Operation

After selecting Square at the top panel as shown in

Figure 2- 2, on the Duty Cycle panel below, input the desired

duty cycle value.

Figure 2-8 Panel view of the duty cycle section

Remote Interface Operation

FUNCtion:SQUare:DCYCle <percent>

The APPLy command automatically sets the duty cycle to

50%.

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Agilent U2761A 1
USB Modular 1
Function/Arbitrary 1
Waveform Generator 1
Safety Symbols 3
General Safety Information 4
Environment Conditions 5
Regulatory Markings 6
2002/96/EC 7
Declaration of Conformity 8
Additional Information: 9
Performance Criteria: 9
In This Guide… 10
Contents 11
XII U2761A User's Guide 12
U2761A User's Guide XIII 13
XIV U2761A User's Guide 14
List of Figures 15
Figure 2-31 Ramp waveform 91 16
List of Tables 17
XVIII U2761A User’s Guide 18
Getting Started 19
Introduction 20
Product at a Glance 21
Front View 22
Rear View 22
Product Dimensions 23
Dimensions With Bumpers 24
Standard Purchase Items 25
Inspection and Maintenance 26
Installation 27
A. Check Your System 28
C. Install the Module Driver 30
Chassis Installation 42
Features and Functions 43
Output Configuration 44
Function Limitation 45
Amplitude Limitation 45
Output Frequency 47
Function Limitations 48
Duty Cycle Limitations 48
Output Amplitude 49
Limits Due to Units Selection 50
DC Offset Voltage 51
Output Units 53
Output Termination 54
Duty Cycle (Square Waves) 56
Symmetry (Ramp Wave) 58
Output Control 59
Pulse Waveform 63
Pulse Width 64
Pulse Duty Cycle 65
Amplitude Modulation (AM) 67
Carrier Waveform 68
Carrier Frequency 69
Modulating Waveform 70
Modulating Waveform Frequency 71
Modulation Depth 71
Frequency Modulation (FM) 73
Frequency Deviation 77
Phase Modulation (PM) 79
Phase Deviation 83
To Select FSK Modulation 84
FSK Carrier Frequency 86
FSK “Hop” Frequency 87
FSK Rate 88
To Select PSK Modulation 89
PSK Carrier Frequency 91
PSK Rate 92
PSK Deviation 92
To Select ASK Modulation 94
ASK Rate 97
Frequency Sweep 98
Sweep Mode 100
Sweep Time 100
Sweep Trigger Source 101
Remote Interface Operation 102
Triggering 103
Internal Triggering 104
Manual Triggering 104
External Triggering 105
Trigger Input Signal 106
Trigger Output Signal 106
Soft Front Panel Operation 107
Arbitrary Waveforms 109
Agilent Technologies 113
Product Characteristics 114
WAVEFORMS 115
WAVEFORM CHARACTERISTICS 115
Ramp, Triangle 116
Arbitrary 116
Range +360° to –360° 117
SWEEP CHARACTERISTICS 119
TRIGGER CHARACTERISTICS 119
Trigger input 119
Trigger output 119
102 U2761A User’s Guide 120
U2761A User’s Guide 103 121
104 U2761A User’s Guide 122

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