Anritsu S251C manual Tma-Dd

Page 60

Chapter 4 Measurements

Device Under Test

TMA-DD

Procedure

Step 1. Connect the External Power Supply (40-115) to the Site Master. Step 2. Turn on the Site Master and press the MODE key.

Step 3. Select INSERTION GAIN (–30 dBm) using the Up/Down arrow key and press

ENTER.

Step 4. Press the FREQ/DIST key to set the frequency limits. For a TMA-DD amplifier, set F1 to 1800 MHz and F2 to 1990 MHz.

Step 5. Perform a two-port calibration of the Site Master (page 3-4).

Step 6. Connect the RF Out port of the Site Master to the ANT connector of the TMA. Step 7. Connect the RF In port of the Site Master to the RX/TX connector of the TMA

TMA-DD

RX/TX ANT

TEST PORT CABLE (OPTIONAL)

RF IN TEST PORT

EXTERNAL POWER

SUPPLY (40-115)

TEST PORT CABLE (OPTIONAL)

RF OUT TEST PORT

(BIAS TEE)

Site Master S251C

1

2

START AUTO

CAL SCALE

3 4

SAVE RECALL

SETUP SETUP

5 6

LIMIT MARKER

7 8

ESCAPE

CLEAR

ENTER

SAVE RECALL RUN

DISPLAY DISPLAY HOLD

9 0 +/-

ON PRINT

OFF.

MODE

FREQ/DIST

AMPLITUDE

SWEEP

Figure 4-11. TMA-DD Measurement Setup

SYS

Step 8. Press the MARKER key and set marker set M1 to 1849 MHz and marker M2 to 1891 MHz

Step 9. Press the SYS key, then OPTIONS, then BIAS TEE to turn on the bias tee volt- age. The gain is the level change before and after the bias tee voltage is turned on.

4-15

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Contents Site Master Model S251C Antenna Cable Analyzer Page Warranty Page Table of Contents Cable & Antenna Analysis Iii/iv Standard Accessories IntroductionDescription Optional Accessories OptionsPerformance Specifications Description Site Master Performance Specifications 2 Preventive Maintenance ESD PrecautionsAnnual Verification Anritsu Service Centers Test Connector Panel Chapter Functions and OperationsFront Panel Overview Active Function Block Soft KeysFunction Hard Keys ModeKeypad Hard Keys ClearAuto Soft Keys MODE=FREQ FREQ/DIST SoftkeysMODE=DTF FREQ/DIST Softkeys Functions and Operations Amplitude Power Monitor Menu Option MODE=POWER Monitor SoftkeysRF Source Menu MODE=RF Source SoftkeysLimit Segment 1 Segment SYS Symbols Self TestError Codes Self Test ErrorsRange Errors ERRORD2Battery Information Charging a New BatteryCharging the Battery in the Site Master Charging the Battery in the Optional ChargerBattery Charge Indicator Battery LifeImportant Battery Information Power On Procedure Chapter Getting StartedSelect the Frequency or Distance CalibrationCalibration Procedure Single Port CalibrationCalibration Procedure Dual Port RF in Test Port RF OUT Test PortSetting the Scale Save and Recall a SetupSave and Recall a Display Recalling a Display Set the Distance and Cable Type Changing the UnitsChanging the Display Language Printing Printing a ScreenPrinter Switch Settings PrinterUsing the Soft Carrying Case Using the Site Master Soft Carrying CaseOne Port Measurements Line Sweep FundamentalsInformation Required for a Line Sweep MeasurementsTypical Line Sweep Test Procedures System Return Loss Measurement2is an example of a typical system return loss trace Procedure Cable Loss Mode Insertion Loss MeasurementType Attenuation dB/ft Length ft = Loss dB Procedure Return Loss Mode Distance-To-Fault DTF Transmission Line Test Procedure DTF-Return Loss ModeProcedure DTF-SWR Mode Antenna Subsystem Return Loss Test Vswr Two Port Measurements IntroductionTMA Measurements TMA-STMA Gain Measurement After Calibration TMA-DD 12. TMA-DD Gain Measurement TMA-D 14. TMA-D Gain Measurement Antenna to Antenna Isolation 15. System IsolationQuency settings for common systems Antenna-to-Antenna Isolation Measurement21/4-22 Features System RequirementsInstallation Communication Port SettingUsing Software Tools Interface Cable InstallationDownloading Traces from the Site Master Plot Capture Plot PropertiesTrace Overlay or Plot Overlay Saving TracesCustom Cable List Saving a Plot to a SpreadsheetCreating a Database Printing FormatsCoaxial Cable Technical Data Appendix a Reference DataAppendix a Reference Data A-4 Appendix B Windowing ExamplesAppendix B Windowing B-4