FCC Certification Introduction FCC (Federal Communications Commission, the US Federal Communications Commission) established in 1934 by COMMUNICATIONACT is an independent US government agency, directly responsible to Congress. FCC by controlling the radio, television, telecommunications, satellite and cable to coordinate domestic and international communications. Involving more than 50 US states, Colombia and the United States in their respective districts to ensure the safety of life and property-related radio and wire communications products, engineering technology department FCC's (Office of Engineering and Technology) is responsible for technical support of the Committee, also responsible for equipment approved aspects. Many wireless applications, communications products and digital products to enter the US market, require FCC approval. FCC Commission to investigate and study the various stages of product safety in order to find the best way to solve the problem, but FCC also include radios, aircraft testing and so on. FCC certified product range: 1. PC and peripherals (monitor, printer, keyboard, power adapter, mouse, scanner, interface cards, electronic game consoles, power supplies, UPS, fax machines, modems, answering machines, switches (wait orchestration ), etc.) 2. Household appliances, electric tools (refrigerators, electric iron, food crushers, electric kettle, electronic disinfection cabinet, microwave ovens, air conditioners, vacuum cleaners, electric toys, automatic rice cookers, electric shavers, hair clippers, hair dryer, bread baking, massage appliances, battery chargers, home cooking ranges, hobs, washing machines, cookers, electric food preparation appliances, small power motors and other electrical and electronic products Power Tools: drills, grinders, circular saws machine, a nail gun, air drill, etc.) 3. Audio and video products (radios, CRT / LED / LCD TVs, set-top box DVD / VCD Player, MP3 Player, home audio, etc.) 4. Lighting. (LED lamps, LED screen, LED power supply / driver appliances ballasts, energy saving lamps, stage lights, dimmers, converters, stage, etc places with electronic dimming equipment, tubular fluorescent lamps with electronic ballasts tubular fluorescent lamps, ballasts, lamp ballasts, fixed lighting, luminaries, Recessed Lighting, etc.) 5. Wireless products (such as: Bluetooth Bluetooth, wireless remote control toys, wireless remote control switch, wireless thermometer, wireless mouse and keyboard, wireless monitor & camera, wireless microphone ,, FM transmitter and a variety of wireless devices.) 6. Toy products (metal toys, plastic toys, wood, bamboo toys, cloth toys, paper toys and electronic toys) 7. Security products (sirens, security products, access control, monitor & cameras.) 8, industrial machinery (punching machines, woodworking machinery, packaging machinery, plastic machinery, metal cutting machine tools, food processing machinery, food machinery, printing machinery, Data-casting machinery, mechanical equipment, electrical control systems, recreational facilities, hydraulic machinery, etc.) to apply for FCC certification needs to be provided: who enter the United States communications electronic products need to be FCC certified, that directly or indirectly by the FCC authorized experiment room for testing and approval in accordance with FCC technical standards. FCC requirements for wireless communications products are mainly contained in CFRTitle47 Part2 and Part24 two parts, and the work-related devices are specified in the Part15 of subpartD the 1920MHz-1930MHz frequency band of personal communication service (PCS) in, other relevant information such as the cost requirements, regulatory requirements, etc. are described in Part0 and Part1. The basic application information: Applicants need to prepare basic information includes three categories: basic information and application the applicant, product specifications and certification information. Applicants must be clear, unambiguous answer to the problem, not part of the application scope of content to be clearly marked. Information submitted to the FCC by the network in the form of electronic documents. This information includes the following aspects: (1) the applicant's basic information, such as the full legal name, FCC registration number, address, and other contact information. Applicant countries outside the US, you can directly obtain FCC authorization of the product can also be specified by the agent of the United States to get the product authorization. The FCC requires the applicant to provide a contact into technology-related contacts and legal, economic and other non-technology-related contacts. (2) The applicant code and product code. (3) confidential information, that is involved in the application to determine whether the information confidentiality requirements. If no request for confidentiality, other people can see the application of the relevant information, and sometimes it may cause leakage of critical information products. Therefore, an applicant from consideration technical requirements of confidentiality departure, FCC proposed to allow the applicant to carry out some or all of the information confidentiality requirements. (4) delayed release product licensing information, namely to determine whether the product authorized to be delayed. For some reason (such as confidentiality, etc.), the applicant may choose a product authorized effective date prior to this date, all application information will be kept confidential. (5) confirmation of product categories. For wireless communication products, etc. are generally PCB, PCE or PUB, depending on the product. (6) indicate the applicant category. Application can apply for a new product. May also be a product has been authorized FCCID, change request type Ⅱ or Ⅲ first class. (7) For composite products and other complex systems as an integral part of the product, you also need to identify other relevant certification requirements in addition to the present application. (8) provides laboratory testing information. FCC website listed on all FCC testing laboratories have qualified names, therefore the applicant provided a test lab can only be a form. Product Specifications: When submitting an application, you must do the basic specifications of the product description, including the standardization of products working frequency range, rated output power, frequency tolerance, emission type, microprocessor models, products are based on regulations, products description. Description of the type of launch, FCC asked to use three-character method, which has been defined by Three characters and representation, explain the type of information the modulation type, signal characteristics and transmission bandwidth and transmit instructions and necessary bandwidth. Occupied bandwidth is occupied 99% of the total average power transmitted bandwidth, and requires the following minimum frequency and maximum frequency above are part of the 0.5% share of the power, for the multi-channel frequency division system, the validity of the principle of this provision can for processing. Bandwidth refers to the need to ensure the speed and quality in the transmission of information requirements of the premise, occupying the minimum bandwidth, and its representation also follow a prescribed system. Finally, some of the important features of the product must be described. FCC provides a series of standardized statement describing the applicant as a reference for the application of the product description. The above information must be submitted within 72 hours, otherwise, all information will be deleted system, need to re-submit all information the next time you apply. Confirmation message: confirmation is a confirmation that the authenticity of the information the applicant all applications for final confirmation. If the information submitted, the existence of fraud ingredients, the applicant will be subject to a fine, imprisonment, revocation of licenses, confiscation and other penalties. Applicants must meet the provisions of the relevant commitment of controlled substances. Technical Report: In addition to providing basic information about the applicant, it must also provide a technical report. Technical report must contain at least the following: (1) the name and address of the manufacturer and certified applicants. (2) FCCID. (3) the final product's installation and operating instructions. For still in the prototype phase of the product, if temporarily unable to provide final instructions, you can provide a draft, and then provide a formal specification to be improved after. (4) emission type and frequency range. (5) the power range of normal working hours, or power level, as well as limit the corresponding regulations. If the power is adjustable, also described adjustment method. (6) work, fed to the voltage and current values ??of RF amplifier circuit, and described in the normal power or within a specific power level range power value adjustment program. (7) all determined and stable frequency, suppress spurious, schematics modulated signal power and limitations associated circuits and components and the corresponding description of the principle. (8) product identification labels or photos or pictures. (9) product images, including perspective and internal and external structure, dimensions require photo 8 × 10 inches, and preferably supplemented with a ruler at the time of taking pictures of the product's geometry. External pictures to be able to clearly show the product structure, layout, control keys and buttons and the like; to be able to reflect the internal picture of the internal structure of the product, the position and the frame structure components and the like. If the manual and instructions are included these photos have been submitted to FCC. The technical report can contain only the necessary supplement. (10) on the use of digital modulation technology products, must specify the characteristics of modulation system reports, including the frequency and phase of the filter, modulation waveform amplitude response characteristics and products to work at maximum rated power of. (11) related to performance test methods and results, which will be explained in the next section. FCC certification test content: Technical report submitted to the FCC, including the RF output power, modulation characteristics, bandwidth, transmit antenna ports stray, stray radiation field intensity, frequency stability and spectral characteristics and other aspects of performance, FCC regulations sets out the principles of the upper and testing requirements for each performance, where only the appropriate test method to do a brief introduction. RF output power: the power of adjustment in accordance with procedures to regulate the feed into the RF amplifier circuit voltage and current values, it is in the state of maximum rated power transmission, and RF output port with the appropriate load, thereby testing the largest RF output power . For different transmission types, power adjustment method will be different, in this technical report should be described in detail. Modulation characteristics: (1) the modulation of voice communications products, to be measured within the frequency range of the audio frequency modulation circuit 100-5000Hz response curve. If the product using the audio low pass filter, the frequency of the audio filter is also measured response curve. Versus input voltage - (2) of the limiting process using the modulation products, the percentage of modulation signals in the frequency and power level of the entire range of the required modulation measurement. (3) restrictions on the use of the peak envelope power circuit SSB radiotelephone transmitter independent sideband required output measured peak envelope power - versus the input voltage. (4) Other types of products will be processed according to the type of application for certification and the corresponding regulations. Bandwidth: measurement bandwidth, modulation schemes for different products, measurement methods will be different, but the basic principle is to choose a typical business model modulated signal with the most significant cases to be tested, and in the report of the input a detailed description of the modulated signal. Stray transmit antenna ports: In addition to the RF power or voltage products useful frequency point, but also the need for unwanted spurious frequency measurement. When measuring, you can add the appropriate fake antenna antenna output port; and some of the more notable harmonic spurious emission points need to focus on. Stray radiation field strength: The test detects the product's enclosure main port, harmonic control circuit module and the power port, and some of the more notable miscellaneous distribute RF field strength points. Frequencies below 890MHz product, measurements need to be in the open field or anechoic chamber. For the field test, the need for a clear reflection of RF source and measure objects near the scene of a detailed investigation and analysis and explanation. Frequency stability: frequency stability test when required, including ambient temperature and input voltage variations and changes in the product to determine the frequency of the frequency stabilization circuit, in exceptional circumstances, and may include products with different antenna or larger frequency stability near metal objects when moving. Temperature range is -30 ℃ ~ + 50 ℃, the temperature measured at intervals of not more than 10 ℃. When measuring the frequency of each temperature point, we need to wait long enough to allow the resonant circuit elements related to the steady state is reached. Voltage variation range is 85% to 115% of the rated operating voltage, that rely on battery operated portable products, the minimum voltage can be cut-off voltage. Spectral characteristics: spurious emissions and spectral range of the radiation field strength assessment and measurement, will be determined on the basis of the product's operating frequency. The lowest frequency spectral characteristics of study can choose the lowest frequency point products actually used; if the lowest frequencies below 9kHz, select 9kHz as the study of the lowest frequency. Select the highest frequency of the following principles: (1) operating frequency of 10GHz for the following products, choose the highest 10 harmonics of the fundamental frequency as the highest frequency assessment, if the frequency is greater than 10 harmonics 40GHz, 40GHz is selected for evaluation the highest frequency. (2) For operating frequencies between 10GHz and 30GHz products, choose the highest fifth harmonic of the fundamental frequency as the highest frequency of assessment, if the 5th harmonic frequencies greater than 100GHz, 100GHz is selected as the highest frequency of assessment. (3) operating frequency 30GHz for more products, choose the highest fifth harmonic of the fundamental frequency as the highest frequency of assessment, if the 5th harmonic frequencies greater than 200GHz, 200GHz is selected as the highest frequency of assessment.