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1、frequencyfunction•frequencyresponse301TunedTunedcaststationsorafrequencymeterusedinelec-tototric-generatingstations).2f2ffrequencymultiplierAcircuitordevicewhoseout-putfrequencyisamultipleoftheinputfrequency.See,forexample,FREQUENCYDOUBLER.frequency-multiplyingamplifierSeeMULTI-PLIERAMPLIF
2、IER.frequency-multiplyingtransformerAmagneticOutInamplifierthatgeneratesharmonicsofthesupplyfrequency.Theeffectresultsfromthenonlinear-ityofthetransformercorematerial.frequencyoffset1.Thedifferencebetweenanac-tualfrequencyandthedesiredfrequency.2.Inacommunicationstransceiver,thedifferenceb
3、e-tweenthereceiverfrequencyandthetransmitterfrequency.Insomemodes,suchassingle-side-frequencydoublerband(SSB),theoffsetisnormallyzero.Inothermodes,notablycontinuous-wave(CW)MorsefrequencyfunctionSeePROBABILITYDENSITYcode,theoffsetisnormallyseveralhundredHz.FUNCTION.3.SeeFREQUENCYSPLIT,1.fr
4、equencyindicator1.Adevicethatindicatesfrequencyoverlap1.Acommonbandoffrequen-whenaphaseorfrequencyiscommontotwoal-ciesbetweentwoadjacentchannelsinacommu-ternatingcurrents.2.Thedisplayordialthatnicationssystem.2.Acommonfrequencyregionshowstheoperatingfrequencyofaradiore-betweentwoassignedba
5、nds.3.Aconditioninceiverortransmitter.3.SeeFREQUENCYME-whichpartsofthesidebandsoftwosignalsoc-TER.cupythesamerangeoffrequencies.frequencykeyingSeeFREQUENCY-SHIFTKEY-frequencypullingAchangeinthefrequencyofaING.circuit,especiallyofaself-excitedoscillator,re-frequencymeterAninstrumentformeasu
6、ringthesultingfromthedetuningeffectsofanexternalfrequencyofanalternatingcurrent.Theseveralcircuit,device,orcondition(suchasbodycapac-differenttypesareusedindifferentapplications.itanceorachangeinthetemperature).AlsoseeAUDIOFREQUENCYMETER,FRE-frequencypushingAneffectinwhichacurrentQUENCYCOU
7、NTER,POWER-FREQUENCYME-changeinasourceoscillatorcausesashiftinTER,andWAVEMETER.sourcefrequency.frequency-modulatedradarSeeFMRADAR.frequencyquadruplerSeeQUADRUPLER,2.frequencymodulationAbbreviation,FM.AfrequencyquintuplerSeeQUINTUPLER,2.methodofconveyingintelli
