china shenzhen bory technology testing and certification FCC

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FCC (Federal Communications Commission)
The FCC an independent agency of the U.S. government established in ***4. The FCC by controlling radio wide
Broadcasting, television, telecommunications, satellite and cable coordinate national and international communications. Many radios should
 the FCC approval is required for applications, communications and digital products to enter the U.S. market
——The FCC certification. The FCC commission investigates and studies all phases of product safety to find solutions
The FCC also includes the detection of radio devices, aircraft and so on

FCC wired product testing content, FCC VoC

The FCC regulates only electromagnetic interference. Electromagnetic Interference is divided into two types

The following ways:

1. Conduction interference

propagates through power lines, signal lines, and other conductors, and the FCC requires frequencies from **0Khz to
At *0Mhz, the interference at low frequency is mostly conducted interference.

2. Radiation Emission

Spread through space. From *0Mhz to 1Ghz, most of the interference at high frequency is radiation interference.
Usually, both kinds of interference can coexist.

3. Antenna disturbance.
This applies to devices with external antennas. Such as TV.