Anritsu S113C Podręcznik Użytkownika Pobierz pdf (Strona 7)

Adjusting Limits ...............................3-13

Adjusting the Display Contrast........................3-15

Setting the System Language.........................3-15

Setting the System Impedance ........................3-15

Printing ....................................3-16

Printing a Screen .............................3-16

Printer Switch Settings ..........................3-17

Using the Soft Carrying Case.........................3-18

Chapter 4 - Cable & Antenna Measurements

Introduction ..................................4-1

Line Sweep Fundamentals ...........................4-1

Information Required for a Line Sweep ....................4-2

Typical Line Sweep Test Procedures .....................4-3

System Return Loss Measurement .....................4-3

Insertion Loss Measurement ........................4-4

Distance-To-Fault (DTF) Transmission Line Test .............4-8

Resolution..................................4-9

Antenna Subsystem Return Loss Test...................4-10

Chapter 5 - Spectrum Analyzer Measurements

Spectrum Analyzer Fundamentals .......................5-1

Site Master Spectrum Analyzer Features ...................5-3

AM/FM Modulation ..............................5-3

Amplitude Modulation ...........................5-3

Frequency Modulation ...........................5-4

Field Strength Measurements .........................5-6

Creating a Spectral Mask ...........................5-7

Trace Overlay .................................5-9

Occupied Bandwidth .............................5-10

Percent of Power Method .........................5-10

XdB Down Method ............................5-10

Required Equipment............................5-10

Procedure .................................5-10

Channel Power Measurement ........................5-12

GSM Channel Power Measurement .....................5-12

Required Equipment............................5-12

Procedure .................................5-13

Adjacent Channel Power Ratio ........................5-15

GSM Adjacent Channel Power Measurement ................5-15

Required Equipment............................5-15

Procedure .................................5-15

Measurement Applications ..........................5-17

Resolving Closely Spaced Signals ......................5-17

Measurement of Two Signals Having Equal Amplitudes ........5-17

Measurement of Two Signals Having Unequal Amplitudes .......5-19

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