Agilent Technologies N9320A Servisní příručka stáhnout pdf (Strana 10)

4 N9320A Programmer’s Guide

1 Getting Started

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Agilent N9320A 1
Spectrum Analyzer 1
In This Guide… 3
N9320A Programmer’s Guide 4
Contents 5
Getting Started 7
® II or higher required 8
® 2000 Professional, service 8
About USB Interface 12
Programming Fundamentals 13
Overview 14
Command Categories 16
Command Syntax 17
Command Example 18
Creating Valid Commands 19
Program and Response Messages 20
Parameters in Commands 21
Variable Parameters 22
Status Registers 23
Access the status registers 25
Status Register Examples 28
Status Register System 29
The Status Byte Register 30
0 1 2 3 4 5 6 7 32
3 4 5 6 7 32
Programming Example 35
Example Program 38
#include “visa.h” 39
Opening a Session 40
Device Sessions 40
Addressing a Session 42
Closing a Session 42
Checking USB Connection 43
38 N9320A Programmer’s Guide 44
4 Programming Example 44
Programming Example 4 45
N9320A Programmer’s Guide 39 45
40 N9320A Programmer’s Guide 46
N9320A Programmer’s Guide 41 47
42 N9320A Programmer’s Guide 48
N9320A Programmer’s Guide 43 49
44 N9320A Programmer’s Guide 50
N9320A Programmer’s Guide 45 51
Measuring Phase Noise 52
N9320A Programmer’s Guide 47 53
48 N9320A Programmer’s Guide 54
Command Reference 55
IEEE Common Commands 56
Identification Query 57
Operation Complete Query 57
Service Request Enable 58
Status Byte Query 58
CALCulate Subsystem 59
NdBstate 60
CALCulate:LLINe Subsection 61
Delete Limit Line 62
Display the Limit Line 63
Set the Margin Size 63
Display the Limit Margin 64
Control Limit Line Testing 64
Select the Type of Limit Line 64
CALCulate:MARKer Subsection 65
Frequency Counter Marker 66
Marker Mode 68
Define Peak Excursion 68
Define Peak Search 68
Define Peak Threshold 69
Threshold Hidden 69
Peak to Peak Delta Markers 70
Turn on/off Phase Noise 70
Set the Phase Noise Offset 70
Optimize Phase Noise 71
Read Phase Noise 71
> Mkr –> Ref Lvl 72
> Mkr –> Start 72
> Mkr –> CF Step 72
> Mkr –> Stop 72
Marker On/Off 73
Marker Table On/Off 73
Marker to Trace 73
Marker to Trace Auto 73
Set the Delta Marker 75
Set the Reference Marker 75
Span Markers Span X Value 75
CALCulate:NTData Subsection 76
CALibration Subsystem 77
CONFigure Subsystem 79
Query the measurement State 80
DISPlay Subsystem 81
Display Line On/Off 83
Normalized Reference Level 83
FETCh Subsystem 86
Channel Power measurement 87
OBW measurement 87
SEM measurement 87
TOI measurement 88
INITiate Subsystem 89
Take New Data Acquisitions 90
MMEMory Subsystem 91
and:MMEM 93
Store a Limit Line in a File 93
Store a Trace in a File 94
OUTPut Subsystem 95
READ Subsystem 96
Read the TOI (IP 3) 99
SENSe Subsystem 100
Set ACP Reference Auto 101
Set ACP Reference Manual 102
Set ACP to Total Pwr Ref 102
Set the Measurement Method 103
Set the Ref BW 103
Set the Offset Freq 104
Set the Measurement Type 105
[:SENSe]:CHPower Subsection 106
Set the Channel Power Span 107
Amplitude 108
Set the Average Mode 109
Set OBW Span 109
Turn on/off Max Hold 110
Set the Occ BW% Pwr 110
[:SENSe]:TOI Subsection 111
Set the Max Mixer Lvl 112
Set TOI Span 113
[:SENSe]:SEMask Subsection 114
Set the Channel Res BW 115
Set Chan Span 115
Set the Offset Res BW 115
Set the Start Freq 116
Set the Stop Freq 117
Set the Sweep Time 117
SEM:OFFS:LIST:SWE:AUTO 40 ms 117
Set the Abs Start 118
Set the Rel Start 118
Set the Abs Stop 119
Set the Rel Stop 119
Set the Fail Mask 120
[:SENSe]:AVERage Subsection 121
Turn Averagi ng On/O ff 122
[:SENSe]:BANDwidth Subsection 123
Video Bandwidth 124
Video Bandwidth Automatic 124
[:SENSe]:DETector Subsection 125
Typ e of Dete c tion 126
Detector 126
Frequency 127
[:SENSe]:SWEep Subsection 130
SOURce Subsystem 131
Automatic Source Attenuation 132
Sets the Output Power 132
Output Power Tracking 133
Output Power Tracking Peak 134
SYSTem Subsystem 135
Display Software Information 136
System Configuration Query 136
Display System Configuration 136
Set Date 136
Error Information Query 137
Query Instrument Options 137
Power on Type 137
Persistent State Reset 138
Preset Type 138
Save User Preset 138
Set Time 138
TRACe Subsystem 139
TRIGger Subsystem 140
Trigg er Sour ce 141
Video Trigger Level Amplitude 142
138 N9320A Programmer’s Guide 144
5 Command Reference 144

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