Anritsu S251C User Manual

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Site Master
Model S251C
Antenna and
Cable Analyzer
User's Guide
Hand-Held Tester for Transmission Lines
and other RF Components
Color Front Cover only P/N: 00986-00045
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1 2 3 4 5 6 ... 82 83

Summary of Contents

Page 1 - Cable Analyzer

Site MasterModel S251CAntenna andCable AnalyzerUser's GuideHand-Held Tester for Transmission Linesand other RF ComponentsColor Front Cover only P

Page 2

Chapter 1General InformationIntroductionThis chapter provides a description, performance specifications, optional accessories, pre-ventive maintenance

Page 3 - TRADEMARK ACKNOWLEDGMENTS

The following items are supplied with the basic hardware.·Soft Carrying Case·AC-DC Adapter·Automotive Cigarette Lighter 12 Volt DC Adapter,·CDROM disk

Page 4

·Armored Test Port Extension Cable, 1.5 meter, N (m) toN (m), Part No. 15NN50-1.5C·Armored Test Port Extension Cable, 3.0 meter, N (m) toN (m), Part N

Page 5

1-4Chapter 1 General InformationSpecifications are valid when the unit is calibrated at ambient temperature after a 5 minutewarmup.DescriptionValueSit

Page 6

1-5Chapter 1 General InformationCable Insertion Loss:RangeResolution0.00 to 54.00 dB0.01 dBBias Teeinput voltage:output current:12.5 to 15.0 Vdc270 ma

Page 7 - Table of Contents

Preventive MaintenanceSite Master preventive maintenance consists of cleaning the unit and inspecting and clean-ing the RF connectors on the instrumen

Page 8

Annual VerificationAnritsu recommends an annual calibration and performance verification of the Site Masterand the OSL calibration components by local

Page 9 - Appendix B - Windowing

1-8Chapter 1 General InformationUNITED STATESANRITSU COMPANY685 Jarvis DriveMorgan Hill, CA 95037-2809Telephone: (408) 776-8300FAX: 408-776-1744ANRITS

Page 10 - General Information

Chapter 2Functions and OperationsIntroductionThis chapter provides a brief overview of the Site Master functions and operations, provid-ing the user w

Page 11 - Optional Accessories

Front Panel OverviewThe Site Master menu-driven user interface is easy to use and requires little training. Hardkeys on the front panel are used to in

Page 13 - Chapter 1 General Information

Function Hard KeysMODE Opens the mode selection box (below). Use the Up/Down arrow key to select amode. Press theENTER key to implement.FREQ/DIST Disp

Page 14

Keypad Hard KeysThis section contains an alphabetical listing of the Site Master front panel keypad controlsalong with a brief description of each. Wh

Page 15 - ESD Precautions

The following keypad hard key functions are printed in blue on the keypad keys.Turns the liquid crystal display (LCD) back-lighting ON or OFF.(Leaving

Page 16 - Annual Verification

Soft KeysEach function key opens a set of soft key selections. Each of the soft keys has a correspond-ing soft key label area on the display. The labe

Page 17

Chapter 2 Functions and Operations2-7MODE=DTF:SOFTKEYS:BOTTOMTOPFREQ/DISTAMPLITUDED2DTF AIDMORED1LOSSCABLEWINDOWBACKPROPVEL130259517PAGE UPSELECTTRACE

Page 18 - Functions and Operations

FREQ/DIST Displays the frequency and distance menu depending on the measurement mode.FrequencyMenuProvides for setting sweep frequency end points when

Page 19 - Front Panel Overview

AMPLITUDE Displays the amplitude or scale menu depending on the measurement mode.AmplitudeMenuProvides for changing the display scale. Selected values

Page 20 - Function Hard Keys

Power Monitor Menu (Option 5)Selecting POWER MONITOR from the Mode menu causes the soft keys, described below,to be displayed and the corresponding va

Page 21 - Keypad Hard Keys

RF Source MenuRF Source mode provides an RF Out source that can be used, for example, in the alignmentof dish antennas. SelectingRF SOURCE from the Mo

Page 22

LIMITPressing LIMIT on the data keypad activates a menu of limit related functions.Use the corresponding softkey to select the desired limit function.

Page 23 - Soft Keys

WARRANTYThe Anritsu product(s) listed on the title page is (are) warranted against defects inmaterials and workmanship for one year from the date of s

Page 24 - AMPLITUDE

qEDIT — Opens the selected marker parameter for data entry. PressENTER when data entry is complete or ESCAPE to restore the previousvalue.qDELTA (Mx-M

Page 25

SEGMENT 3SEGMENT 4SEGMENT 5BACKqLIMIT BEEP — Turns the audible limit beep indicator on or off.SYS Displays the System menu softkey selections.qOPTIONS

Page 26

SymbolsTable 2-1 provides a listing of the symbols used as condition indicators on the LCD display.Self TestAt turn-on, the Site Master runs through a

Page 27 - Power Monitor Menu (Option 5)

Error CodesSelf Test ErrorsA listing of Self Test Error messages is given in Table 2-2.2-16Chapter 2 Functions and OperationsError MessageDescriptionB

Page 28 - RF Source Menu

Range ErrorsA listing of Range Error messages is given in Table 2-3.2-17Chapter 2 Functions and OperationsError MessageDescriptionRANGEERROR:F1 > F

Page 29

Battery InformationCharging a New BatteryThe NiMH battery supplied with the Site Master has already completed three charge anddischarge cycles at the

Page 30

The NiMH battery will last longer and perform better if allowed to completely dischargebefore recharging. For maximum battery life, it is recommended

Page 31

The battery can be charged and discharged 300 to 500 times, but it will eventually wear out.The battery may need to be replaced when the operating tim

Page 32 - Self Test

Chapter 3Getting StartedIntroductionThis chapter provides a brief overview of the Anritsu Site Master. The intent of this chapteris to provide the use

Page 33 - Error Codes

Select the Frequency or DistanceRegardless of the calibration method used, the frequency range for the desired measure-ments must be set before calibr

Page 35 - Battery Information

Calibration Procedure - Single PortCheck that the “CAL OFF” message is displayed in the upper left corner of the display.This indicates that the Site

Page 36 - Battery Life

Calibration Procedure - Dual PortCheck that the “CAL OFF” message is displayed in the upper left corner of the display.This indicates that the Site Ma

Page 37 - Important Battery Information

Setting the ScaleAuto ScaleThe Site Master can automatically set the scales to the minimum and maximum values ofthe measurement on the y-axis of the d

Page 38 - Getting Started

Step 1. Press the SAVE DISPLAY key to activate the alphanumeric menu for trace stor-age.Step 2. Use the soft keys to enter a label for the saved trace

Page 39 - Calibration

Set the Distance and Cable TypeIn Distance-To-Fault (DTF) mode, the length of the transmission line (distance) and cabletype are selected. The cable t

Page 40 - Figure 3-2. Calibration Setup

PrintingPrinting is accomplished by selecting an available printer and pressing the print key as de-scribed below. Refer to the particular printer ope

Page 41 - Site Master S251C

Step 4. Press the PRINTER soft key and select from the displayed menu of supportedprinters.Step 5. Press thePRINT key. (Figure 3-6).Printer Switch Set

Page 42 - Save and Recall a Display

Using the Soft Carrying CaseThe soft carrying case has been designed such that the strap can be unsnapped to allow thecase to be easily oriented horiz

Page 43 - Recalling a Display

Chapter 4Cable & AntennaAnalysisIntroductionThis chapter provides a description of cable and antenna measurements in one port and twoport modes. M

Page 44 - Changing the Display Language

The performance of a transmission feed line system may be affected by excessive signal re-flection and cable loss. Signal reflection occurs when the R

Page 46 - Printer Switch Settings

Typical Line Sweep Test ProceduresThis section provides typical line sweep measurements used to analyze the performance ofa transmission feed line sys

Page 47 - Using the Soft Carrying Case

Figure 4-2 is an example of a typical system return loss trace:NOTE: The system sweep trace should appear at an approximate return loss of15 dB (±3 dB

Page 48 - Analysis

Insertion Loss MeasurementThe transmission feed line insertion loss test verifies the signal attenuation level of the ca-ble system in reference to th

Page 49

Step 14. Verify the measured insertion loss against the calculated insertion loss:Type Attenuation (dB/ft)´ Length (ft) = Loss (dB)First JumperLDF4-50

Page 50 - MODE key

Procedure - Return Loss ModeStep 1. Press theMODE key.Step 2.Select FREQ-RETURN LOSS using the Up/Down arrow key and pressENTER.Step 3. Set the start

Page 51

Distance-To-Fault (DTF) Transmission Line TestThe Distance-To-Fault transmission line test verifies the performance of the transmissionline assembly a

Page 52 - Insertion Loss Measurement

Figure 4-5 shows an example of a typical DTF return loss trace.In the above example:qMarker M1 marks the first connector, the end of the Site Master p

Page 53 - ´ Length (ft) = Loss (dB)

Antenna Subsystem Return Loss TestAntenna Subsystem return loss measurement verifies the performance of the transmit andreceive antennas. This measure

Page 54

The following trace is an example of an antenna return loss trace.Calculate the threshold value and compare the recorded Lowest Return Loss to the cal

Page 55

Two Port MeasurementsIntroductionA Tower Mounted Amplifier (TMA) can be used to amplify the received signal. There aredifferent types of TMA depending

Page 57 - MARKER key

TMA MeasurementsRequired EquipmentqSite Master Model S251CqOption 10A, Bias TeeqExternal Power Supply 40-115qTest Port Extension Cable, Anritsu 15NNF5

Page 58

Step 8.Press theSYS 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 volt

Page 59 - Two Port Measurements

Device Under TestqTMA-DDProcedureStep 1. Connect the External Power Supply (40-115) to the Site Master.Step 2. Turn on the Site Master and press theMO

Page 60 - TMA Measurements

Marker M1 indicates the receive band of the tower mounted amplifier. The level above the0 dB reference level is the gain of the TMA. Marker M2 indicat

Page 61 - Gain/Insertion Loss

Device Under TestqTMA-DProcedureStep 1. Connect the External Power Supply (40-115) to the Site Master.Step 2. Turn on the Site Master and press theMOD

Page 62 - RX/TX ANT

Marker M1 indicates the receive band of the tower mounted amplifier. The level above the0 dB reference level is the gain of the TMA. Marker M2 indicat

Page 63 - Chapter 4 Measurements

Antenna to Antenna IsolationIntroductionMeasuring antenna-to-antenna isolation between adjacent systems is very important whendeploying multiple syste

Page 64 - (BIAS TEE)

Antenna-to-Antenna Isolation MeasurementAntenna-to-Antenna isolation measurement is accomplished in Insertion Loss Mode. Inser-tion Loss Mode (+ 6 dBm

Page 65

Step 5. Disconnect the Tx (Transmit) coax from System 1 and connect it to the RF Outport of the Site Master.Step 6. Disconnect the Rx (Receive) coax f

Page 66 - Antenna to Antenna Isolation

Chapter 5Site Master Software ToolsIntroductionThis chapter provides a description of the Site Master Software Tools provided with theSite Master. Sit

Page 67

Table of ContentsChapter 1 - General InformationIntroduction ...1-1Description...1-1Sta

Page 68 - 4-21/4-22

InstallationTo install the Site Master Software Tools program:Step 1. Insert the Anritsu Site Master Software Tools disk in the CDROM drive.Step 2. Fr

Page 69 - Site Master Software Tools

Interface Cable InstallationCommunication between the Site Master and the PC is accomplished over a null modem se-rial cable provided with the Site Ma

Page 70 - Installation

Plot CaptureTo open the plot capture menus, select the capture icon on the button bar, or select the Cap-turedrop down menu from the menu bar.SelectCa

Page 71 - Using Software Tools

MarkersMarkers M1 through M6 can be activated from the Plot Properties menu.The six active markers can be displayed on the plot to help identify fault

Page 72 - Plot Properties

Step 3. Exit the Site Master Software Tools program and open the target application(Microsoft Word, etc.).Step 4. SelectEdit and then Paste. The file

Page 73 - Saving Traces

Uploading a Cable ListAfter custom cable list has be created in Site Master Software Tools it can upload it to theSite Master. The serial communicatio

Page 74 - Custom Cable List

Appendix AReference DataCoaxial Cable Technical DataTable A-1 provides a standard listing of common coaxial cables along with their RelativePropagatio

Page 75 - Printing Formats

A-2Appendix A Reference DataManufacturer Cable TypeRelativePropagationVelocity (Vf)NominalAttenuationdB/m @1000 MHzNominalAttenuationdB/m @2000 MHzNom

Page 76 - Reference Data

A-3/A-4Appendix A Reference DataManufacturer Cable TypeRelativePropagationVelocity (Vf)NominalAttenuationdB/m @1000 MHzNominalAttenuationdB/m @2000 MH

Page 77 - Appendix A Reference Data

Appendix BWindowingIntroductionThe Distance sub-menu (page 2-8) provides for setting the cable loss and relative propaga-tion velocity of the coaxial

Page 78

Saving a Setup ...3-5Recalling a Setup...3-5Save and Recall a Display ...

Page 79 - Windowing

B-2Appendix B WindowingD i s t a n c e T o F a u l t51 01 52 0 2 53 0F e e t3 54 04 55 05 56 0- 5- 1 0- 1 5- 2 0- 2 5- 3 0- 3 5- 4 0- 4 5- 5 0R e

Page 80 - Appendix B Windowing

B-3/B-4Appendix B WindowingD i s t a n c e T o F a u l t51 01 52 0 2 53 0 3 5 4 04 55 05 5 6 0F e e t- 5- 1 0- 1 5- 2 0- 2 5- 3 0- 3 5- 4 0- 4 5-

Page 83

Appendix A - Reference DataCoaxial Cable Technical Data.......A-1Appendix B - WindowingIntroduction .........

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