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Anritsu S251B manual 3-16, Functions and Operations, BACK — Return to the Sweep menu

Models: S251B

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BACK — Return to the Sweep menu.

Chapter 3 Functions and Operations

Sweep Menu Provides for changing the display resolution, single or continuous sweep, and access to the Trace Math functions.

Choosing SWEEP in FREQ or DTF measurement modes causes the soft keys below to be displayed.

RESOLUTION — Opens the display to change the resolution. Choose 130, 259, or 517 data points. (Not active in DTF mode. In DTF mode, resolution can be adjusted through the DTF-AID table.)

SINGLE SWEEP — Toggles the sweep between single sweep and continu- ous sweep. In single sweep mode, each sweep must be activated by the

RUN/HOLD button.

TRACE MATH — Opens up the Trace Math functions (trace-memory or trace+memory) for comparison of the real time trace in the display with any of the traces from memory. (Not available in DTF mode.)

TRACE OVERLAY — Selects the Trace Overlay function and opens the trace overlay sub-menu.

NOTE:

The trace overlay function is valid only for traces in memory that have the same measurement mode, number of data points, and frequency or distance range as the currently displayed trace.

Trace Overlay The trace overlay sub-menu is used to turn the trace overlay function on or off

Sub-Menuand for selecting the overlay trace from memory.

ON/OFF — Toggles the trace overlay function on and off. If trace overlay is currently off, selecting on will bring up the trace memory selection table and sub-menu.

SELECT TRACE — Opens the trace memory selection table and the Select Trace sub-menu. Press ENTER to select a trace from the table. The Select Trace sub-menu choices are:

TOP OF LIST — Move the selection cursor to the top (first) memory lo- cation.

PAGE UP — Move the selection cursor to the top of the previous trace memory location page. Each page contains 15 trace memory locations.

PAGE DOWN — Move the selection cursor to the top of the next trace memory location page.

BOTTOM OF LIST — Move the selection cursor to the bottom (last) memory location.

DELETE TRACE — Delete the selected trace from memory. This option is not available when using Trace Overlay.

DELETE ALL TRACES — Delete all traces from memory. This option is not available when using Trace Overlay.

BACK — Return to the Sweep menu.

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Anritsu S251B manual 3-16, Functions and Operations, BACK — Return to the Sweep menu

Contents

Cable Analyzer Site Master Model S251B Antenna andUsers Guide TRADEMARK ACKNOWLEDGMENTS WARRANTYLIMITATION OF WARRANTY NOTICEPage Chapter 3 - Functions and Operations Chapter 1 - General InformationChapter 2 - Getting Started Chapter 4 - MeasurementsDTF Measurement Making Power MeasurementsSWR Return Loss and Cable Loss Measurement 4-16Chapter 5 - Software Tools Program iii/ivAppendix A - Reference Data Introduction Standard AccessoriesChapter General Information DescriptionOptions Optional AccessoriesChapter 1 General Information Performance Specifications Chapter 1 General InformationDescription Site Master Table 1-1. Performance Specifications 1 ofChapter 1 General Information 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 the Battery in the Optional Charger Charging a New BatteryCharging the Battery in the Site Master Chapter Getting StartedChapter 2 Getting Started Battery Charge IndicatorBattery Indicator Important Battery Information Discharging the NiMH BatteryBattery Life Chapter 2 Getting StartedUse only Anritsu approved battery packs Chapter 2 Getting StartedIntroduction Chapter Functions and OperationsFront Panel Overview SOFT KEYSPower Test Connector PanelBattery Chapter 3 Functions and OperationsSCALE Keypad ControlsAUTO ENTERRECALL SETUPPRINT DISPLAYArrow Key SWEEPUp/Down Chapter 3 Functions and OperationsAMPLITUDE Soft KeysFREQ/DIST SWEEPUNITS MODE=POWER MONITOR SOFTKEYSChapter 3 Functions and Operations OFFSETAMPLITUDESWEEP FREQ/DISTChapter 3 Functions and Operations MARKER TO PEAK MARKER TO VALLEY Chapter 3 Functions and OperationsMARKER MARKER TO PEAK MARKER TO VALLEYABC DEF GHI JKL MNO PQR STU VWX 3-10Chapter 3 Functions and Operations 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 Figure 3-9.Rectangular Windowing Example 3-13Chapter 3 Functions and Operations Figure 3-10.Nominal Side Lobe Windowing ExampleFigure 3-11.Low Side Lobe Windowing Example 3-14Chapter 3 Functions and Operations Figure 3-12.Minimum Side Lobe Windowing ExampleAmplitude 3-15AMPLITUDE MenuChapter 3 Functions and Operations 3-16BACK — Return to the Sweep menu Chapter 3 Functions and Operations 3-17ALL OFF — Turns all markers off Chapter 3 Functions and Operations 3-18Clock Sub-MenuRECALL 3-19Chapter 3 Functions and Operations DISPLAY3-20 Power Monitor MenuChapter 3 Functions and Operations Printing a Screen Printing3-21 OPTIONSPRINTER Printer Switch Settings3-22 PRINT3-23 SymbolsSelf Test Symbol3-24 Error CodesSelf Test Errors vice CenterMaximumUnaliased Range Range Errors3-25 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 Recalling a Setup Setting the Amplitude ScaleSaving the 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 connectedSWR Return Loss and Cable Loss Measurement Device-Under-TestSpecificationProcedure Required EquipmentChapter 4 Measurements 4-10Performing a Calibration NOTESSet the Amplitude Scale and Limit Line 4-11SWR or Return Loss Measurement 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 Cable Loss Measurement Setting the Segment Limit LInes4-14 Setting the Amplitude ScaleChapter 4 Measurements 4-15Figure 4-12.Cable Loss Measurement Results Device-Under-TestSpecification 4-16DTF Measurement ProcedureChapter 4 Measurements 4-17Performing a Calibration Step 13. Press ENTER to start the calibrationSetting the Amplitude Scale Setting the Marker4-18 Chapter 4 MeasurementsChapter 4 Measurements 4-19Figure 4-13.DTF - SWR Measurement Results cable length Setting the Markers 4-20Setting the Amplitude Scale Chapter 4 MeasurementsChapter 4 Measurements 4-21Figure 4-15.DTF - SWR Measurement Results cable quality Selecting the Measurement 4-22Insertion Gain Amplifier Measurement Device-Under-TestSpecificationTEST PORT CABLE 4-23Chapter 4 Measurements OPTIONALSetting the Markers 4-24Amplifier Gain Measurement Figure 4-20.Amplifier Gain Measurement SetupSetting the Amplitude Scale 4-25Activating the Bias Tee Chapter 4 MeasurementsChapter 4 Measurements 4-26Figure 4-22.Measurement Display of Amplifier Gain Zeroing the Power Monitor Making Power MeasurementsEntering Power Monitor Mode Measuring High Input Power LevelsChapter Software Tools Program Communication Port SettingChanging COM Port Settings–Windows95/98/NT RequirementsChapter 5 Software Tools Program Plot Capture Software InstallationChapter 5 Software Tools Program COM port Program defaults to COM2 Capture multiple traces to a databaseCapture single or multiple traces to PC screen Serial InterfaceCustom Cable List Uploading and Downloading Saving a Custom Cable ListProgram Operation Fault Location SoftwareSmith Chart Software Chapter 5 Software Tools Program“Drag-n-Drop” Pasting a Plot in Graphic or Spreadsheet For- matSaving Data to a Database 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 Cable Type Coaxial Cable Technical DataAppendix A Reference Data Relative Propagation Velocity VfRelative Propagation Velocity Vf Appendix A Reference DataCable Type Nominal Attenuation