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N8975B NFA
Keysight Technologies N8975B NFA Manuals
Manuals and User Guides for Keysight Technologies N8975B NFA. We have
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Keysight Technologies N8975B NFA manual available for free PDF download: Manual
Keysight Technologies N8975B NFA Manual (88 pages)
Signal Analyzers
Brand:
Keysight Technologies
| Category:
Measuring Instruments
| Size: 1.62 MB
Table of Contents
Table of Contents
5
1 Introduction to Noise Figure
9
How Does the Noise Figure Measurement Work
10
Noise Source
10
Y-Factor Measurement
10
Process
11
What Does the Keysight N9069C Noise Figure Measurement Application Do
12
Making Basic Measurements
14
Basic Amplifier Measurement
14
Calibrating the Analyzer
15
Making the Measurement
19
Making Frequency Converter Measurements
20
Making Frequency Converting DUT Measurements
20
Initial Setup Procedure
23
Calibration of the Measurement Setup
25
Making the Corrected Noise Figure and Gain Measurement
27
Making Multi-Stage Converter Measurements
28
Measurements with a System Downconverter
28
Measurement Modes with a DSB System Downconverter
30
Measurement Modes with an SSB System Downconverter
31
Calculating Measurement Uncertainty
34
Using the U7227-Series USB Preamplifiers in Noise Figure Measurements
37
Initial Connection to the Signal Analyzer
38
Amplitude Concerns in the Noise Figure Test System
41
Guide for Using U7227-Series USB Preamplifier and the Internal Preamplifier Inside X-Series Signal Analyzer
41
Rough Guide for the Noise Figure Test System Configuration
42
AF = 10 × Log
46
Af Dut_Bw
46
Dut_Gain_Modified
47
Dut_Gain_Modified = Dut_Gain AF
47
Use the DUT_NF and Dut_Gain_Modified Values to Search in
47
2 Making Noise Figure Measurements
13
3 Measurement Related Tasks and Concepts
49
Setting the Measurement System
50
Accounting for Frequency Conversion
50
Sidebands and Images
50
LO Harmonics
51
LO Leakage
51
Signal Leakage
51
Single Sideband Measurements
52
Double Sideband Measurements
54
Choosing and Setting up the Local Oscillator
56
Selecting a Local Oscillator for Extended Frequency Measurements with the X-Series
56
Selecting a Local Oscillator
57
Calibrating the Analyzer
58
Corrected Measurements
58
Calibration Indicator
59
Interpolated Calibration
59
Interpolated Results
59
User Cal Vs. Internal Cal
59
When to Perform Calibration
59
Setting the Signal Analyzer to Make a Measurement
61
DUT Setup Form
61
Entering Excess Noise Ratio (ENR) Data
64
Entering ENR Table Data for Noise Sources
65
Selecting a Common ENR Table
65
Figure
67
Saving an ENR Table
68
Entering ENR Data from Internal Storage
69
Setting the Tcold Value
69
Using a Spot ENR Value
69
Setting the Measurement Frequencies
70
Using Swept Frequency Mode
70
Using List Frequency Mode
71
Effect of Bandwidth and Averaging on Speed, Jitter, and Measurement Accuracy
73
Selecting the Resolution Bandwidth (RBW) Value
73
Setting the Bandwidth and Averaging
73
Using Fixed Frequency Mode
73
Setting Averaging
74
Selecting the Input Attenuation Range
75
Setting the Input Attenuation Used for Measurement
76
Adding External lo to List
77
Setting up DUT lo or System Downconverter lo
77
Setting up External lo Control
77
Examples Where Loss Compensation Is Applied
78
Using Loss Compensation
78
Configuring Fixed Loss Compensation
79
Creating a Loss Compensation Table
80
Setting Temperature of Loss
81
Viewing Measurement Results
82
Displaying the Measurement Results
82
Selecting the Layout
82
Selecting Result Types to Display
83
Setting the Scaling
84
Calculating the Noise Power into Different Stages of the Noise Figure Measurement System
85
Calculating the Noise Figure for Noise Power Calculation
86
Further Information
87
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