Strongly filter magnetic ring
*** How to reduce the annoying EMI, the negative impact of RFI?
EMI (Electro Magnetic Inference) exists in our space, as large as the high voltage tower and mobile phones and remote control will emit electromagnetic interference. Electromagnetic interference can affect the sound quality of music equipment. On the other hand, the influence of RFI (Radio Frequency Inference) on audio equipment has also plagued enthusiasts. Radio frequency sources more widely, from space, radio, television, indoor radiotelephone, cell phones and fluorescent lamps, such a wide range of RF all the time around with you. Due to the growing popularity of cell phones and Bluetooth, mobile phones themselves transmit spurious signals, each of which spurs out differently. No matter whether it is a PC or a drilling machine, virtually any object is a potential source of noise. What is more troublesome is that the frequency spectrum of radio frequency is very broad, ranging from 3MHz to 300GHz. In a serious situation, RFI will make your horn broadcast a weak radio, it will make your music equipment noise. RFI can be received from the air, so it involves the so-called radio frequency spectrum, audio equipment can be said to be ubiquitous interference, all-pervasive.
How to reduce the negative impact of EMI and RFI? Screening and filtering the unused input ports and the fever wires used in the audio equipment is a very simple and effective way, and the shielded protection cap can also play an anti-oxidant protection role on the idle input ports of the equipment.
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