Anritsu S251C Guia do Utilizador descarregar pdf (Página 61)

Marker M1 indicates the receive band of the tower mounted amplifier. The level above the

0 dB reference level is the gain of the TMA. Marker M2 indicates the transmit band of the

amplifier where there is no gain.

4-16

Chapter 4 Measurements

Gain/Insertion Loss

TMA-DD PCS

M1: 12.17 dB @ 1882.36 MHz

Frequency (18250.0 - 2025.0 MHz)

1825

1850 1875

1900 1925 1950 1975 2000 2025

-10

-20

-30

-40

-50

-60

-70

Figure 4-12. TMA-DD Gain Measurement

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 80 81

Site Master 1
Model S251C 1
Antenna and 1
Cable Analyzer 1
WARRANTY 3
LIMITATION OF WARRANTY 3
TRADEMARK ACKNOWLEDGMENTS 3
Table of Contents 5
Appendix A - Reference Data 7
Appendix B - Windowing 7
Chapter 1 8
General Information 8
Optional Accessories 9
Performance Specifications 10
Chapter 1 General Information 11
Preventive Maintenance 13
ESD Precautions 13
Annual Verification 14
Chapter 2 16
Functions and Operations 16
Front Panel Overview 17
Function Hard Keys 18
Keypad Hard Keys 19
Soft Keys 21
MODE=DTF: 22
SOFTKEYS: 22
FREQ/DIST 22
AMPLITUDE 22
Power Monitor Menu (Option 5) 25
RF Source Menu 26
Self Test 30
Error Codes 31
Range Errors 32
Battery Information 33
Battery Charge Indicator 34
Battery Life 34
Important Battery Information 35
Chapter 3 36
Getting Started 36
Calibration 37
ENTER key. The messages Mea 38
ENTER key. The 38
Figure 3-2. Calibration Setup 38
Site Master S251C 39
Setting the Scale 40
Save and Recall a Setup 40
Save and Recall a Display 40
Recalling a Display 41
Changing the Units 42
Changing the Display Language 42
Printing 43
Printer Switch Settings 44
Using the Soft Carrying Case 45
Chapter 4 46
Cable & Antenna 46
Analysis 46
MODE key 48
Insertion Loss Measurement 50
´ Length (ft) = Loss (dB) 51
MARKER key 55
Two Port Measurements 57
TMA Measurements 58
Gain/Insertion Loss 59
RX/TX ANT 60
Chapter 4 Measurements 61
EXTERNAL POWER 62
SUPPLY (40-115) 62
RF OUT TEST PORT 62
(BIAS TEE) 62
Antenna to Antenna Isolation 64
4-21/4-22 66
Chapter 5 67
Site Master Software Tools 67
Installation 68
Using Software Tools 69
Plot Capture 70
Plot Properties 70
Trace Overlay or Plot Overlay 71
Saving Traces 71
Custom Cable List 72
Creating a Database 73
Printing Formats 73
Appendix A 74
Reference Data 74
Appendix A Reference Data 75
Appendix B 77
Windowing 77
Appendix B Windowing 78

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