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See the symbol of the Federal Communications Commission USA (FCC) means a computer, mobile phone, computer science, printers, fax machines, televisions and many other products are radio frequency radiation emissions at undesirable or harmful to the surrounding environment.
to be sold in the US, these products must pass lab tests proved their independence does not emit the radio waves so high they perturbations can cause other electronic devices.
"the whispering noise that you hear on the radio or mobile phone radiation and radio waves, which very often are tested," Mark Tilleman, sales director from a consulting company and test IT products based in Boulder, Colo said.
the symbol appears on the electronic device "accidentally" emitting radio signals, such as a product of women's power through common parts like the processor.
But with mobile telecommunications equipment is manufactured for the purpose of sending out radio signals, they are usually granted an FCC ID label. This label indicates that their deliberate frequency within permitted levels, dedicated bandwidth for that device type.
Some of the radio signal leakage is acceptable and is unavoidable in electronic devices, but to minimize the intense radiation that can alter the frequency of the objects, the manufacturers have incorporated their products with protected and grounded parts mounted guard in order to achieve redundancy FCC received.
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