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Home/ Questions/Q 3786
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Sneha Singh
Sneha SinghLevel 40
Asked: October 24, 20212021-10-24T18:23:23+05:30 2021-10-24T18:23:23+05:30

At Which Layer Would You Find Errors That Were Caused By Emi?

At Which Layer Would You Find Errors That Were Caused By Emi?
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    1. Maryam Khalid Bronze
      2021-12-30T17:03:42+05:30Added an answer on December 30, 2021 at 5:03 pm

      At which layer would you find errors that were caused by EMI (electromagnetic interference)?

      Answer:  Physical layer is the layer where we could find the errors caused by electromagnetic interference. in the OSI model, the physical layer is the first layer or the last depending on the order but it works to handle the transmission of bit-level among devices and assist the mechanical or electrical part of the physical medium for effective synchronized communication.

      What is meant by EMI?

      EMI stands for electromagnetic interference and it is defined as the disturbance of the function of an electronic device during the territory of the electromagnetic field of the RF which is the result of the neighboring electronic device.

      The personal computer inner circuit generates the electromagnetic field in the range of RF, or the cathode rays tube also forms the Electromagnetic field over a wide range, and the creation of the EM disturbs nearby the wireless signal. If you are using the personal computer and the wireless connection is also working then you might hear the sound of RF in the receiver which is formed in the personal computer system.

      The wireless ejector which has high energy is capable to generate the electromagnetic field which affects the neighbor’s device. The device which is close to the broadcast stations might have experienced the EM field ejecting from the radio etc. Most of the devices can’t handle the EM field and have a problem in working as the PC, telephone system, etc.

      The effect of the EMI is lessening if the electronic devices are working with the food electrical system which is connected to the ground. While the cable which helps in the connection is also covered in the shield which keeps them from ejecting or receiving the RF energy. Some special parts as line filters, capacitors are present in the cables and the cords to lessen the EMI of the systems. Try to contact the manufacture before any kind of changes In the system.

      Types of the EMI

       EMI have many types as the man-made, naturally, process, continuous interference, impulse noise but and electromagnetic interference types on the basis of bandwidth are discussed in detail in the following section:

      Narrowband:

      The narrowband is generated by the single source mostly from the vibrations of some form; the narrowband is also formed from the false signal caused by the disturbance of the transmitter as the mobile phone etc. The false signals are present at various spots in the RF field and cause interference of the neighbor user spectrum.

      Broadband:

      Broadband has many forms and arises from different sources as well. The interference caused by humans arises from many sources as the arc welder where the sparks form continuously. The natural broadband interference is due to the sun, as when the sun is behind the satellite the sun-out generates for the satellite TV system and the noise covers the required signals. But the effects remain for a few minutes which is a kind of advantage.

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