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Shenzhen Northtest Testing Technology Co., Ltd. Northtest group Third party certification body

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Hot Line 400-800-6106
Northtest group · headquarters
Tel:0755-36995505 Q Q: Email:ntek@ntek.org.cn Blocks B, C and E of Fenda Science and Technology Creative Park, Xixiang, Baoan District, Shenzhen

Wireless communication detection

EMC——SRRC certification

SRRC certification is the National Radio Regulatory Commission certification. According to the "Administrative Regulations on Imported Radio Transmission Equipment" and "Administrative Regulations on Production of Radio Transmission Equipment", in order to strengthen the management of imported and production radio transmission equipment, any radio transmission equipment exported to the People's Republic of China or within the territory of the People's Republic of China All radio transmission equipment produced (including trial production) must hold a Radio Transmission Equipment Type Approval Certificate issued by the State Radio Regulation Committee and SRRC after the type approval of its transmission characteristics.
The type approval code must be marked on the label of the factory equipment. The testing agencies currently recognized by the Radio Management Bureau of the Ministry of Information Industry are: State Radio Monitoring Center (SRMC)

SRRC certified product range:
Mobile communication equipment: 2G / 3G base station / terminal / repeater, etc .;
Professional communication equipment: AM transceiver, digital radio system base station / vehicle station / handheld station, analog trunking, digital trunking base station / handheld station / repeater, digital radio station, microwave equipment, satellite earth station equipment, cordless telephone equipment, Bluetooth equipment, maritime satellite equipment, etc .;
Wireless access equipment: 2.4GHz / 3.5GHz / 5.8GHz wireless access equipment, etc.
Radar navigation equipment: weather radar, navigation radar, speed radar, air navigation equipment, etc .;
Broadcast and television equipment: FM / AM broadcast transmitter equipment, TV transmitter equipment;
Short-range micropower equipment: general micropower equipment, biomedical telemetry equipment, public walkie-talkies, wireless microphones, etc .;
Various other systems containing radio transmitting devices.
As above, the traditional products include tablets, mobile phones, Bluetooth speakers and other products that include wifi, BT and data terminal functions.

Beitest Advantage Certification Product Series

Bluetooth wifi / wireless toy / mobile phone / smart home

SAR (Specific Absorption Rate of Electromagnetic Radiation) detection

SAR definition
SAR concept 1: The introduction of the SAR concept: Since various organs of the human body are lossy media, an inductive electromagnetic field will be generated in the body under the action of external electromagnetic fields, and the inductive electromagnetic field in the body will generate a current, which will cause absorption and dissipation of electromagnetic energy. People use SAR to characterize this physical process.
SAR Concept 2: Specific Absorption Rate: Specific Absorption Rate
It is defined as the energy of electromagnetic radiation (irradiation) absorbed per unit time (s) and unit mass (kg) of the organism, and its unit is W / kg.
SAR concept 3: SAR measurement mechanism:
By definition, it can be seen that SAR evaluation is performed by measuring field strength distributions or temperature changes. However, SAR evaluation by measuring temperature rise is difficult and the error is large. Therefore, at present, the electric field probe is generally used to measure the field strength distribution for SAR evaluation in order to obtain higher measurement accuracy.
SAR definition: Under the influence of external electromagnetic field, an induced electromagnetic field will be generated inside the human body. Because various organs of the human body are consumable media, the electromagnetic field in the body will generate electric current, which will cause the absorption and dissipation of electromagnetic energy. SAR is commonly used in biological dosimetry to characterize this physical process. The meaning of SAR is the electromagnetic power absorbed or consumed by human tissue per unit mass, and the unit is W / kg.

SAR detection standards and products
Product categories: mobile phones, laptops, tablets, USB Dongle, Card Bus, etc.
Product communication standard: GSM / GPRS / EDGE: 850/900/1800 / 1900MHz;
HSDPA / HSUPA; CDMA2000, WCDMA, LTE, Wi-Fi; Bluetooth, etc.
SAR detection standards:
International: IEEE Std 1528; IEEE Std C95.1; IEEE C95.3; IEC62209-1; IEC62209-2
United States and Canada: FCC OET65; ANSI C63.19; ANSI C95.1; ANSI C95.3; RSS102;
Europe: EN 50360; EN50361; EN 62209-1; EN 62209-2;
Japan: ARIB STD-T56
Australia: AS / NZS2772.1;
China: YD / T 1664.1

Wireless Communication EMC

EU
In the EU market, the "CE" mark is a compulsory certification mark. Whether it is a product produced by an enterprise within the EU or a product produced in another country, if it is to be freely distributed in the EU market, it must be affixed with the "CE" mark to indicate that the product Meet the basic requirements of the European Union's "New Approach to Technical Coordination and Standardization" directive. This is a mandatory requirement imposed on products by EU law.

Radio and communication terminal products. Test certification includes:
1. EMC test
2. Safety test LVD (In the new directive, this test is also required for RF products with battery input)
3. Test of radio communication equipment (RF test) according to European ETSI standards

4. Electrical Safety and Health Protection Testing (Health, SAR Evaluation)

US FCC certification

FCC certification: FCC (Federal Communication Commission, Federal Communications Commission) was established by COMMUNICATIONACT in 1934 as an independent agency of the US government. Communications and digital products require FCC approval to enter the US market. The FCC committee investigates and studies the various stages of product safety to find the best way to solve the problem. At the same time, the FCC also includes the detection of radio devices and aircraft.
According to the relevant part of the US Federal Communications Regulations (CFR 47), all electronic products entering the United States are required to undergo electromagnetic compatibility certification (except for products specifically specified in relevant provisions). There are three common certification methods: Certification, DoC, Verification. The authentication methods and procedures of these three products are quite different. The authentication methods that can be selected for different products have relevant regulations in the FCC. Its certification is diminishing.

For these three certifications, the FCC committee also has related requirements for each laboratory. Generally speaking, wireless communication products require FCC ID certification. FCCID has a strict application process, which is not described in detail here. The specific test certification requirements are as follows:

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