Interview Questions Answers.ORG
Interviewer And Interviewee Guide
Interviews
Quizzes
Home
Quizzes
Interviews Technical Support Engineer Interviews:Auto Body WorkerCamera TechnicianCar RepairmanCCTV Camera/ Device InstallerCCTV OperatorData Entry Operator (DEO)Die DeveloperElectric MechanicElectric Motor RepairerElectronic Media PerformersElevator TechnicianFilling Machine OperatorGenerator OperatorInstrumentationInstrumentation SpecialistLab ChemistLead GeneratorMusical Instrument MakerProduction OfficerRepairmanSharePoint DeveloperShoe MakerSolar Panel TechnicianTechnical EditorTechnical Support EngineerTechnician
Copyright © 2018. All Rights Reserved
CCTV Camera/ Device Installer Interview Question:
What is balun?
Submitted by: MuhammadA Video Balun enables the transmission of video using unshielded twisted pair wire instead of coaxial cable. The word "balun" comes from combining the terms balanced and unbalanced. The function of a balun is to transform an unbalanced signal into a balanced signal. When video signal is transmitted through coaxial cable, the distance traveled by the signal is limited because the signal is in the form of an unbalanced signal that is susceptible to Radio Frequency Interference or noise. Coax cable incorporates special shielding to minimize noise. Video Baluns transform the video signal into a balanced form in which each wire in the twisted pair transmits an identical signal with opposite polarized magnetic fields. Noise affects each signal equally. When the signals are combined, the noise is cancelled out. By using a designed balun, an unshielded twisted pair wire can transmit video for much longer distances than coax cable and with a lower cable cost.
Submitted by: Muhammad
Submitted by: Muhammad
Copyright 2007-2024 by Interview Questions Answers .ORG All Rights Reserved.
https://InterviewQuestionsAnswers.ORG.
https://InterviewQuestionsAnswers.ORG.