Bird-technologies 4331 Manual do Utilizador Página 1

INSTRUCTION BOOK FORRF DIRECTIONALTHRULINE®WATTMETERMODEL 43Also Covers Models4305, 4330, 4431, 4521-27, and 43P© Copyright 1998 by Bird Electronic Co

PartsChanges To The ManualWe have made every effort to ensure this manual is accurate. If youshould discover any errors or if you have suggestions for

Table of ContentsSafety Precautions. . . . . . . . . . . . . . . . . . . . . . . . iWarningStatements. ...iiCaution Statement. . . .

Connections. . . . . . . . . . . . . . . . . . . . . . . . . . 19Remote Installation. . . . . . . . . . . . . . . . . . . . . . 20Operating Instructio

Model 4305A Replacement Parts List. . . . . . . . . . . . 45Model 4330 Thruline Wattmeter. . . . . . . . . . . . . . . 45Model 4330/31 Replacement Par

Bird Model 43 Wattmeter

Chapter 1IntroductionPurpose and FunctionPerformance Characteristics and Capabilities

Bird Model 43 Wattmeter

Raised Stop EdgeStop PinFigure 1Stop PinStop PinContactFigure 2Stop pin andcontactIntroduction

SpecificationsImpedance, Nominal (All Models) 50 ohmsInsertion VSWRAll models except 44314431Less than 1.05:1 maximum1.07 (when coupling is less than3

Accuracy (All Models CW)(Model 43P, Peak Power)± 5% of full scale.± 8% of full scale.Dimensions, NominalModels 43Model 4431Model 4305AModels 4521/22/2

1-5/16"(33.3mm)3-3/8"3-5/8"(92.1mm)(85.7mm)6-7/8"(174.6mm)4"(101.6mm)1-3/4"(44.5mm)Female "N" Q.C.Connectors (

Chapter 2Theory of OperationTravelling Wave ViewpointsssCoupling Circuit

RF Coaxial LineXMTRorLOADLOADorXMTRDirectional CouplingDetector ElementDiodeMeterDC ContactBypassDCConnectorFigure 3ElementSchematicDiagramBird Model

Standing Wave Ratio vs Reflected/Forward Power RatioLoad PowerTheory of Operation

φφρ φφφp andpp=+−=−+LNMOQP11112φφφWhere p VSWRandWWrf==φBird Model 43 Wattmeter

φφφφCAUTIONWhen making low reflection readings using a more sensitiveelement, take care to insert the element so that it sensesreflected power only. D

1.05 1.10 1.151.201.25 1.30 1.40.02.03.04.05.06.07.08.09.1.2.3.4.5.6.7.8.91.02.0VSWR—rPERCENT REFLECTED POWER—ff=¾ x 100 =——————————— x 100WrWfREFELEC

34567891020304050607080901004567VSWR—rPERCENT REFLECTED POWER—ff=¾ x 100 =——————————— x 100WrWfREFELECTED POWERFORWARD POWER2112 3 8Figure 5Percent Re

Measurement And Monitoring of Transmitter PowerTesting of Lines, Connectors, Filters, Etc.φφφ= = =01800 00125 01% 106... .or close to or to roughly pB

φφφusing the equation: N ,dB=FHGIKJ10 logWWrfTheory of Operation

Safety PrecautionsKeep Away From Live CircuitsDo Not Service Or Adjust AloneSafety Earth GroundShock Hazard

Frequency ResponseBird Model 43 Wattmeter

Impedance Mismatch20 40 60 80 100 2004006008001000Frequency In Megahertz-10 -5 0-10 -5 0-10 -5 0Relative Response DB10 CElement100 CElement500 CElemen

Bird Model 43 Wattmeter

Chapter 3InstallationPortabilityConnectionsWARNINGLeaking RF energy is a potential health hazard. Never attemptto connect or disconnect equipment from

Remote InstallationBird Model 43 Wattmeter

Installation

2-1/8"1-1/2"PLUG-IN ELEMENTDETERMINES POWER &FREQUENCY RANGE#10-32 x 9/32 DEEP TAPTWO HOLES7/8"J-411P-4015-1/8"3-13/16"17

Chapter 4Operating InstructionsZero AdjustWARNINGWhen operating this equipment in conjunction with RF power of200 watts or higher, the potential of th

GeneralBird Model 43 Wattmeter

Normal OperationTo Load To TransmitterTo Load To TransmitterForward Power MeasurementReflected Power MeasurementFigure10Direction ofElementOperating I

ResuscitationSafety SymbolsWarning StatementsBird Model 43 Wattmeter

Bird Model 43 Wattmeter

1015200.51.01.52.02.53.04.05.02530 4050100 150 200300 400500.2.4.6.81.01.21.41.61.82.0468101214161820VSWR=1+Reflected PowerForward PowerReflected Powe

10 15200.51.0 1.52.02.53.04.05.02530 4050100 150 200300 400500.01.02.03.04.05.06.07.08.09.1.2.3.4.5.6.7.8.91.03.02.52.01.61.51.41.31.251.201.161.141.1

Figure 13Cable Wavelength Matching Graph200 300 400 60004812162028243236700100FREQUENCY (MEGAHERTZ)500CABLELENGTHINCHESINCHES(10)(9)(8)(7)(6)(5)(4)MEG

Bird Model 43 Wattmeter

Chapter 5MaintenanceTroubleshooting

CleaningProblem Possible Cause Corrective ActionNo meter indica-tionNo RF power Check RF source“Arrow” on Plug-inelement pointing in wrongdirectionRep

ssssPreventive MaintenanceLine Section CareContact AdjustmentMaintenance

Calibration Checks - Thruline Wattmeter vsTermaline WattmetersBird Model 43 Wattmeter

Model 43 Replacement Parts ListItem Qty. Description Part Number1 1 Housing Assembly 4210-0182 1 Cover Assembly 4210-005-13 1 Line Section Assembly 42

Caution StatementSafety Statements

*Available “QC” Type ConnectorsConnector Part Number Connector Part NumberN-Female 4240-062 LT-Female 4240-018N-Male 4240-063 LT-Male 4240-012HN-Femal

Figure 14Exploded View Of The Model 43Maintenance

Model 4431 Thruline WattmeterTheory of OperationBird Model 43 Wattmeter

Maximum CounterclockwiseFrequency (MHz) Sensitivity(Fully Clockwise)4 Full TurnsFrom Max.Position7 Full TurnsFrom Max.Position269(Approximate dBattenu

OperationMaintenanceBird Model 43 Wattmeter

+Model 4431 Replacement Parts ListItem Qty. Description PartNumber11Modified housing (instead of 4210-018) 4431-01121Guide plate assembly 4431-00231Mo

Series 4520 Thruline WattmetersInstallationBird Model 43 Wattmeter

Theory of Operation, Operating Instructions and MaintenanceSectionsSeries 4520 Replacement Parts ListItem Qty. Description Part Number1 1 Mounting pan

Model 4305A Thruline WattmeterItem Qty. Description Part Number412DC connector assemblyModel 4521/23/25Model 4522/26/274230-01051112MicroammeterModel

Model 4305A Replacement Parts ListModel 4330 Thruline WattmeterItem Description Part Number1 Housing assembly 4305A0032 Cover assembly 4305A0023 Line

ÉÚ ÉBird Model 43 Wattmeter

Model 4330/31 Replacement Parts ListModel 43P Peak WattmeterItem Description Part Number1Housing assembly 4330-0042Microammeter, 10µA full scale, 3-1/

Model 43P SpecificationsOperationPeak Detector ResponseRF Frequency Range 0.450-2700 MHz. depending on element selected.RF Power Rating 100 mW to 10kW

Model 43P Peak CalibrationBird Model 43 Wattmeter

MaintenanceBatteryBattery+R9-Serial No.Figure 15Model 43PMaintenance

Customer ServiceBird Model 43 Wattmeter

DECLARATION OF CONFORMITYManufacturer: Bird Electronic Corporation30303 Aurora RoadCleveland, Ohio 44139-2794Product: Thruline RF Directional Wattmete

Bird Model 43 Wattmeter

About This ManualOperationMaintenance43 43P 4305A 43314431 4521 4522 45234525 4526 4527