One Port Measurements, Line Sweep Fundamentals | Anritsu S251C

Chapter 4

Cable & Antenna

Analysis

Introduction

This chapter provides a description of cable and antenna measurements in one port and two port modes. Measurements include line sweeping fundamentals and line sweeping measure- ment procedures, available when the Site Master is in frequency or DTF mode.

One Port Measurements

Line Sweep Fundamentals

In wireless communication, the transmit and receive antennas are connected to the radio through a transmission line. This transmission line is usually a coaxial cable or waveguide. This connection system is referred to as a transmission feed line system. Figure 4-1shows an example of a typical transmission feed line system.

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Figure 4-1. A Typical Transmission Feed Line System

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Anritsu S251C manual One Port Measurements, Line Sweep Fundamentals

Contents

Site Master Model S251C Antenna Cable Analyzer Page Warranty Page Table of Contents Cable & Antenna Analysis Iii/iv Introduction Standard AccessoriesDescription Optional Accessories Options Performance Specifications Description Site Master Performance Specifications 2 Preventive Maintenance ESD Precautions Annual Verification Anritsu Service Centers Test Connector Panel Chapter Functions and Operations Front Panel Overview Active Function Block Soft Keys Function Hard Keys Mode Keypad Hard Keys Clear Auto Soft Keys MODE=FREQ FREQ/DIST Softkeys MODE=DTF FREQ/DIST Softkeys Functions and Operations Amplitude Power Monitor Menu Option MODE=POWER Monitor Softkeys RF Source Menu MODE=RF Source Softkeys Limit Segment 1 Segment SYS Symbols Self Test Error Codes Self Test Errors Range Errors ERRORD2 Charging the Battery in the Site Master Battery InformationCharging a New Battery Charging the Battery in the Optional Charger Battery Charge Indicator Battery Life Important Battery Information Power On Procedure Chapter Getting Started Select the Frequency or Distance Calibration Calibration Procedure Single Port Calibration Calibration Procedure Dual Port RF in Test Port RF OUT Test Port Save and Recall a Setup Setting the ScaleSave and Recall a Display Recalling a Display Changing the Units Set the Distance and Cable TypeChanging the Display Language Printing Printing a Screen Printer Switch Settings Printer Using the Soft Carrying Case Using the Site Master Soft Carrying Case One Port Measurements Line Sweep Fundamentals Information Required for a Line Sweep Measurements Typical Line Sweep Test Procedures System Return Loss Measurement 2is an example of a typical system return loss trace Procedure Cable Loss Mode Insertion Loss Measurement Type Attenuation dB/ft Length ft = Loss dB Procedure Return Loss Mode Distance-To-Fault DTF Transmission Line Test Procedure DTF-Return Loss Mode Procedure DTF-SWR Mode Antenna Subsystem Return Loss Test Vswr Two Port Measurements Introduction TMA Measurements TMA-S TMA Gain Measurement After Calibration TMA-DD 12. TMA-DD Gain Measurement TMA-D 14. TMA-D Gain Measurement Antenna to Antenna Isolation 15. System Isolation Quency settings for common systems Antenna-to-Antenna Isolation Measurement 21/4-22 Features System Requirements Installation Communication Port Setting Interface Cable Installation Using Software ToolsDownloading Traces from the Site Master Plot Capture Plot Properties Trace Overlay or Plot Overlay Saving Traces Custom Cable List Saving a Plot to a Spreadsheet Creating a Database Printing Formats Coaxial Cable Technical Data Appendix a Reference Data Appendix a Reference Data A-4 Appendix B Windowing Examples Appendix B Windowing B-4