How effective is emc in noise reduction?

Very well, a noise reduction device for EMC test equipment comprises a first noise reduction shell and a second noise reduction shell, wherein the bottom of the first noise reduction shell is fixedly connected with the second noise reduction shell; The materials of the first noise reduction shell and the second noise reduction shell are the same; The right side of the top of the first noise reduction shell is communicated with a heat dissipation pipe; The top of the left side of the inner cavity of the first noise reduction shell is fixedly connected with a first sound-absorbing cotton. The utility model solves the problem that the existing muffler for EMC test equipment is inconvenient to use through the cooperative use of the first sound-absorbing cotton, the second sound-absorbing cotton, the third sound-absorbing cotton, the baffle cooling hole, the cooling fan, the first cooling channel, the second cooling channel, the shielding shell, the sound-absorbing board, the porous sponge, the sound-insulating felt and the fiber layer. The invention has the advantage of convenient use and can reduce the noise of electromagnetic compatibility test equipment.