Anritsu Site Master S331D Guía de usuario descargar pdf (Pagina 72)

The following trace is an example of an antenna return loss measurement trace using a

FlexCal calibration..

Calculate the threshold value and compare the recorded Lowest Return Loss to the calcu-

lated threshold value.

Maximum Return Loss =

()

−−

20 1

log VSWR

VSWR

NOTES:

VSWR is the antenna manufacturer’s specified VSWR.

Use Handheld Software Tools to convert VSWR to Return Loss, or Return Loss

to VSWR.

If the measured return loss is less than the calculated threshold value, the test fails and the

antenna must be replaced.

4-10

Chapter 4 Cable & Antenna Measurements

Figure 4-5. Antenna Return Loss Trace

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 101 102

Site Masterä 1
WARRANTY 2
LIMITATION OF WARRANTY 2
TRADEMARK ACKNOWLEDGMENTS 2
S331D, MS2711D 3
Table of Contents 5
Chapter 1 9
General Information 9
Standard Accessories 10
External Detectors 11
Optional Accessories 12
Chapter 1 General Information 13
Performance Specifications 15
Preventive Maintenance 18
Calibration 18
ESD Precautions 19
Anritsu Service Centers 19
Mode References 19
Annual Verification 19
Chapter 2 21
Functions and Operations 21
Display Overview 23
Front Panel Overview 24
Function Hard Keys 25
Keypad Hard Keys 26
Save Setup selection box 27
Soft Keys 28
MODE=DTF: 29
SOFTKEYS: 29
FREQ/DIST 29
AMPLITUDE 29
MEAS/DISP 29
Self Test 38
Error Messages 39
Range Error Messages 40
InstaCal Error Messages 41
General Error Messages 42
Battery Information 43
Battery Life 45
Important Battery Information 46
Chapter 3 47
Getting Started 47
Selecting the Frequency 48
Calibration Verification 49
CALIBRATION 50
InstaCal Module Verification 51
Auto Scale 54
Amplitude Scale 54
Custom, for additional ca 55
All Modes 56
Changing the Units 57
Changing the Language 57
Adjusting Markers 57
Adjusting Limits 58
Printing 60
Using the Soft Carrying Case 61
Chapter 4 63
Cable and Antenna 63
Analyzer Measurements 63
CW Mode/RF Immunity 65
Cable Loss Measurement 67
Resolution 70
MODE key 71
Chapter 5 73
Power Monitor Mode 73
Chapter 6 75
High Accuracy Power Meter 75
Power Measurement 76
Rel soft key. The 78
Chapter 7 79
Handheld Software Tools 79
System Requirements 80
Installation 80
Communication Port Setting 81
Interface Cable Installation 82
Using Handheld Software Tools 83
Plot Properties 84
Trace Overlay or Plot Overlay 85
Saving Traces 85
Creating a Database 86
Printing Formats 86
Cable List 87
Creating a Custom Cable List 87
Uploading a Cable List 87
DTF Plots 87
Smith Chart 88
Signal Standards Editor 89
Signal Standards Reports 90
Chapter 8 91
Master Software Tools 91
Minimum System Requirements 94
Appendix A 95
Windowing 95
Appendix A Windowing 96
....................3-6 99

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