Manuals / Anritsu / Home Audio / Stereo System

Anritsu S251B manual Measurements

Models: S251B

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Chapter 4 Measurements

Figure 4-5. Insertion Loss Mode Calibration Results (Loads at RF Out and RF In)

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Contents

Cable Analyzer Site Master Model S251B Antenna andUsers Guide WARRANTY LIMITATION OF WARRANTYTRADEMARK ACKNOWLEDGMENTS NOTICEPage Chapter 1 - General Information Chapter 2 - Getting StartedChapter 3 - Functions and Operations Chapter 4 - MeasurementsMaking Power Measurements SWR Return Loss and Cable Loss MeasurementDTF Measurement 4-16Chapter 5 - Software Tools Program iii/ivAppendix A - Reference Data Standard Accessories Chapter General InformationIntroduction DescriptionOptions Optional AccessoriesChapter 1 General Information Performance Specifications Chapter 1 General InformationTable 1-1. Performance Specifications 1 of Chapter 1 General InformationDescription Site Master ValueTable 1-2. Performance Specifications 2 of Chapter 1 General InformationPreventive Maintenance Chapter 1 General InformationAnnual Verification CalibrationChapter 1 General Information Table 1-2. Anritsu Service Centers Chapter 1 General InformationCharging a New Battery Charging the Battery in the Site MasterCharging the Battery in the Optional Charger Chapter Getting StartedChapter 2 Getting Started Battery Charge IndicatorBattery Indicator Discharging the NiMH Battery Battery LifeImportant Battery Information Chapter 2 Getting StartedUse only Anritsu approved battery packs Chapter 2 Getting StartedChapter Functions and Operations Front Panel OverviewIntroduction SOFT KEYSTest Connector Panel BatteryPower Chapter 3 Functions and OperationsKeypad Controls AUTOSCALE ENTERSETUP PRINTRECALL DISPLAYSWEEP Up/DownArrow Key Chapter 3 Functions and OperationsSoft Keys FREQ/DISTAMPLITUDE SWEEPMODE=POWER MONITOR SOFTKEYS Chapter 3 Functions and OperationsUNITS OFFSETAMPLITUDESWEEP FREQ/DISTChapter 3 Functions and Operations Chapter 3 Functions and Operations MARKERMARKER TO PEAK MARKER TO VALLEY MARKER TO PEAK MARKER TO VALLEY3-10 Chapter 3 Functions and OperationsABC DEF GHI JKL MNO PQR STU VWX BACK SPACEChapter 3 Functions and Operations 3-11FREQ/DIST Displays the frequency or distance menu depending on the measurement mode Chapter 3 Functions and Operations 3-12BACK — Returns to the Distance Menu 3-13 Chapter 3 Functions and OperationsFigure 3-9.Rectangular Windowing Example Figure 3-10.Nominal Side Lobe Windowing Example3-14 Chapter 3 Functions and OperationsFigure 3-11.Low Side Lobe Windowing Example Figure 3-12.Minimum Side Lobe Windowing Example3-15 AMPLITUDEAmplitude MenuChapter 3 Functions and Operations 3-16BACK — Return to the Sweep menu Chapter 3 Functions and Operations 3-17ALL OFF — Turns all markers off 3-18 ClockChapter 3 Functions and Operations Sub-Menu3-19 Chapter 3 Functions and OperationsRECALL DISPLAY3-20 Power Monitor MenuChapter 3 Functions and Operations Printing 3-21Printing a Screen OPTIONSPrinter Switch Settings 3-22PRINTER PRINTSymbols Self Test3-23 SymbolError Codes Self Test Errors3-24 vice CenterRange Errors 3-25MaximumUnaliased Range Vf is the relative propagation velocityChapter 3 Functions and Operations 3-26CANNOT ZERO 3-27 Chapter 3 Functions and Operations3-28 Using the Soft Carrying CaseChapter 3 Functions and Operations Measurement Functions Chapter MeasurementsIntroduction Calibration Procedure Power On ProcedureChapter 4 Measurements Performing a Calibration Selecting the Frequency RangeChapter 4 Measurements Setting the Amplitude Scale Saving the SetupRecalling a Setup Chapter 4 MeasurementsRecalling a Display From Memory Saving a Display to MemoryChapter 4 Measurements Chapter 4 Measurements Chapter 4 Measurements Figure 4-6.Insertion Loss Mode Calibration Results Loads at RF Out and RF InChapter 4 Measurements NOTES: For best calibration results–compensationfor all measurement system uncertainties–ensurethat the Open/Short/Load is at the end of the test port or optional extension cable; that is, at the same point as the antenna or device to be tested will be connectedDevice-Under-TestSpecification ProcedureSWR Return Loss and Cable Loss Measurement Required Equipment4-10 Performing a CalibrationChapter 4 Measurements NOTES4-11 SWR or Return Loss MeasurementSet the Amplitude Scale and Limit Line Figure 4-9.Cable Measurement Test SetupStep 24. Enter 6, 2, 5 using the key pad or the Up/Down arrow key. Press ENTER to set the Start Frequency to 625 MHz 4-12Chapter 4 Measurements 4-13 Setting the MarkersChapter 4 Measurements Setting the Segment Limit LInes 4-14Cable Loss Measurement Setting the Amplitude ScaleChapter 4 Measurements 4-15Figure 4-12.Cable Loss Measurement Results 4-16 DTF MeasurementDevice-Under-TestSpecification Procedure4-17 Performing a CalibrationChapter 4 Measurements Step 13. Press ENTER to start the calibrationSetting the Marker 4-18Setting the Amplitude Scale Chapter 4 MeasurementsChapter 4 Measurements 4-19Figure 4-13.DTF - SWR Measurement Results cable length 4-20 Setting the Amplitude ScaleSetting the Markers Chapter 4 MeasurementsChapter 4 Measurements 4-21Figure 4-15.DTF - SWR Measurement Results cable quality 4-22 Insertion Gain Amplifier MeasurementSelecting the Measurement Device-Under-TestSpecification4-23 Chapter 4 MeasurementsTEST PORT CABLE OPTIONAL4-24 Amplifier Gain MeasurementSetting the Markers Figure 4-20.Amplifier Gain Measurement Setup4-25 Activating the Bias TeeSetting the Amplitude Scale Chapter 4 MeasurementsChapter 4 Measurements 4-26Figure 4-22.Measurement Display of Amplifier Gain Making Power Measurements Entering Power Monitor ModeZeroing the Power Monitor Measuring High Input Power LevelsCommunication Port Setting Changing COM Port Settings–Windows95/98/NTChapter Software Tools Program RequirementsChapter 5 Software Tools Program Plot Capture Software InstallationChapter 5 Software Tools Program Capture multiple traces to a database Capture single or multiple traces to PC screenCOM port Program defaults to COM2 Serial InterfaceCustom Cable List Uploading and Downloading Saving a Custom Cable ListFault Location Software Smith Chart SoftwareProgram Operation Chapter 5 Software Tools ProgramPasting a Plot in Graphic or Spreadsheet For- mat Saving Data to a Database“Drag-n-Drop” Chapter 5 Software Tools ProgramPrinting Each cable/antenna tends to have a unique Distance-To-FaultDTF “Signature” because differing cable electrical lengths, cable types, dielectric thickness variations, and the posi- tions of components connectors, adapters, and lightning arresters will cause different re- flections at differing positions in the transmission line. Variations in the “signature” between maintenance intervals offer a good indication of damage or damage causing condi- tionsChapter 5 Software Tools Program Coaxial Cable Technical Data Appendix A Reference DataCable Type Relative Propagation Velocity VfAppendix A Reference Data Cable TypeRelative Propagation Velocity Vf Nominal Attenuation