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Anritsu S331C, S113C, S332C, S114C manual Antenna Subsystem Return Loss Test

Models: S113C S332C S114C S331C

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Chapter 4 Cable & Antenna Measurements

Antenna Subsystem Return Loss Test

Antenna Subsystem return loss measurement verifies the performance of the transmit and receive antennas. This measurement can be used to analyze the performance of the antenna before installation. The antenna can be tested for the entire frequency band, or tested to a specific frequency range. Transmit and receive frequency measurements are conducted sep- arately. The following steps explain how to measure the antenna loss in return loss mode.

Required Equipment

Site Master Model S113C, S114C, S331C, or S332C

Precision Open/Short, Anritsu 22N50 or Precision Open/Short/Load, Anritsu OSLN50LF

Precision Load, Anritsu SM/PL

Test Port Extension Cable, Anritsu 15NNF50-1.5C

Optional 510-90 Adapter, DC to 7.5 GHz, 50 ohm, 7/16(F)-N(M)

Anritsu InstaCal Module, ICN50

Device Under Test

Antenna Sub Assembly

Procedure

Step 1. Press the MODE key.

Step 2. Select FREQ-RETURN LOSS using the Up/Down arrow key and press

ENTER.

Step 3. Connect the Test Port Extension cable to the RF port and calibrate the Site Mas- ter as described on page 3-2.

Step 4. Press SAVE SETUP and save the calibration set up (page 3-7).

Step 5. Connect the Device Under Test to the Site Master phase stable Test Port Exten- sion cable.

Step 6. Press the MARKER key.

Step 7. Set markers M1 and M2 to the desired frequency.

Step 8. Record the lowest return loss over the specified frequency.

Step 9. Press SAVE DISPLAY (page 3-8) name the trace, and press ENTER.

4-10

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Anritsu S331C, S113C, S332C, S114C manual Antenna Subsystem Return Loss Test

Contents

Users Guide Warranty Page Table of Contents Power Measurement Iii/iv Page Description Standard AccessoriesChapter General Information IntroductionOptions Optional AccessoriesPerformance Specifications Description Site Master Spectrum Analyzer Calibration Preventive MaintenanceInstaCal Module Annual VerificationAnritsu Service Centers Chapter Functions and Operations Test Connector PanelActive Function Block Soft Keys Front Panel OverviewMode Function Hard KeysClear Keypad Hard KeysAuto MODE=FREQ FREQ/DIST Softkeys Soft KeysMODE=DTF FREQ/DIST Softkeys MODE=SPECTRUM Analyzer FREQ/DIST Amplitude Softkeys Power Monitor Mode Soft Key Labels Functions and Operations Functions and Operations Amplitude RUN/HOLD button Functions and Operations Power Monitor Menu Functions and Operations Limit SYS Self Test SymbolsError Codes Self Test ErrorsError Message ERRORD2 Range ErrorsInstalled InstaCal Error MessagesError MessageDescription Charging the Battery in the Optional Charger Battery InformationCharging a New Battery Charging the Battery in the Site MasterBattery Life Battery Charge IndicatorImportant Battery Information Chapter Getting Started Power On ProcedureCalibration Select the Frequency or DistanceCalibration Verification Trace Characteristics in Return Loss ModeCalibration Manual Calibration ProcedureInstaCal Module Verification Termination MethodOffset Method Calibration with the Test Port Extension Cable InstaCal Module Calibration ProcedureAuto Scale Setting the ScaleSave and Recall a Setup Saving a SetupRecalling a Display Recalling a SetupSave and Recall a Display Saving a DisplaySet the Distance and Cable Type Changing the UnitsChanging the Display Language Printing a Screen PrintingPrinter Printer Switch SettingsUsing the Site Master Soft Carrying Case Using the Soft Carrying CaseLine Sweep Fundamentals Chapter Cable & Antenna MeasurementsCable & Antenna Measurements Information Required for a Line SweepSystem Return Loss Measurement Typical Line Sweep Test ProceduresInsertion Loss Measurement Procedure Cable Loss ModeSet M1 to Marker to Peak Set M2 to Marker to Valley Typical Transmission Line Cable Loss Trace Procedure Return Loss ModeTypical Return Loss Trace Distance-To-Fault DTF Transmission Line Test Shows an example of a typical DTF return loss trace Procedure DTF-SWR ModeAntenna Subsystem Return Loss Test 11/4-12 Page Occupied Bandwidth Chapter Spectrum Analyzer MeasurementsChannel Power Measurement with the Site Master Channel Power MeasurementProcedure Example Acpr Specification Adjacent Channel Power MeasurementCW Wave Out-of-Band Spurious Emission Measurements In-Band/Out-of-Channel Measurements Field Strength Measurement VdBV PdBm Antenna CalculationsPage Power Measurement Chapter Power MeasurementDisplaying Relative Power Features Chapter Site Master Software ToolsSystem Requirements Communication Port Setting InstallationUsing Software Tools Interface Cable InstallationDownloading Traces from the Site Master Graph Titles Display ModePlot Capture Plot PropertiesMisc Trace Overlay or Plot OverlaySaving Traces MarkersCustom Cable List Saving a Plot to a SpreadsheetCreating a Custom Cable List Entering Antenna Factors Uploading a Cable ListQuerying the Site Master Cable List Uploading Antenna Factors Creating a DatabasePrinting Formats Appendix a Reference Data Coaxial Cable Technical DataAppendix a Reference Data A-4 Page Appendix B Windowing IntroductionExamples Appendix B Windowing B-4 Page