FCC Part 15b Certification

The FCC Part 15 standard is a set of electromagnetic compatibility (EMC) regulations for radio frequency devices established by the Federal Communications Commission (FCC) in the United States. This standard specifies the limits for electromagnetic radiation and immunity to ensure that radio devices do not cause harmful interference to other equipment or radio services.

The FCC Part 15 standard includes two categories: Part 15 Class A and Part 15 Class B. Class A applies to equipment used in commercial, industrial, or business environments, while Class B applies to equipment used in residential or personal environments. These standards cover all devices that use electromagnetic frequencies, including radio transmitters, computer equipment, digital devices, TV receivers, monitors, and more.

The FCC Part 15 standard comprises multiple sub-standards, such as Part 15.107, Part 15.109, Part 15.207, Part 15.209, each containing specific testing requirements and limits.

FCC Part 15 Standard Testing Items

1. Radiated Emissions: Tests the electromagnetic waves emitted by the device in the radio frequency range to ensure they do not interfere with other electronic devices.

2. Conducted Emissions: Tests the electromagnetic waves transmitted by the device through conduction paths like power lines to ensure they do not interfere with other electronic devices.

3. Radiated Immunity: Tests the device's ability to receive radio signals from other electronic devices, ensuring it is not disturbed by other equipment.

4. Conducted Immunity: Tests the device's ability to receive electromagnetic waves from conduction paths like power lines, ensuring it is not disturbed by other equipment.

5. RF Power Output: Tests whether the power output of the radio signal generated by the device meets the regulations.

6. Frequency Range: Tests whether the frequency range used by the device meets the regulations.

7. Occupied Bandwidth: Tests whether the bandwidth of the radio signal generated by the device meets the regulations.

8. Spurious Emissions: Tests whether the output power of frequencies other than the intended radio signal generated by the device meets the regulations.

9. Modulation Characteristics: Tests whether the modulation method of the radio signal generated by the device meets the regulations.

Implementation and Latest Version of Part 15 Standards

The FCC Part 15 standard was initially implemented in 1983. It has been revised and updated multiple times to accommodate technological and market changes. The latest version of the FCC Part 15 standard is titled "47 CFR Part 15: Radio Frequency Devices." "47 CFR" refers to the Code of Federal Regulations chapter number, while "Part 15" is the specific identifier for this section. The latest version was officially released on January 29, 2021.