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radio communication equipment testing

radio communication equipment includes one or more radio transmitters or receivers or communication equipment for fixed use, on-board use or portable use or a part thereof. radio communication equipment can be used with ancillary equipment, but basic functions are not dependent on ancillary equipment. the advantage of radio communication equipment is that the environment does not need to be limited by lines, and it has a certain mobility. it can communicate through radio connection in the mobile state, with low construction difficulty and low cost. however, the radio communication equipment is weak in anti-interference, and the transmission rate, distance and bandwidth are limited. nowadays, with the development of radio communication technology, the era of internet of everything is coming, which has been integrated into various scenes in people's production and life. therefore, the compliance of radio communication equipment has also attracted much attention.

service content

noa focus on the compliance and quality of electrical and electronic products, and establish a one-stop service platform for consulting, testing and certification. we can accurately and efficiently complete the detection in multiple frequency bands, and have capability of srrc certification testing.

relevant standards

○ gb/t 22451《common requirements of electromagnetic compatibility for radio communication equipment》

○ gb/t 22450.1《limits and measurement methods of electromagnetic compatibility for 900/1800mhz tdma digital cellular telecommunications system - part 1: mobile station and ancillary equipment》

○ yd/t 1595.1《requirements and measurement methods of electromagnetic compatibility for 2ghz wcdma digital cellular mobile telecommunications system - part 1: user equipment and ancillary equipment》

○ gb/t 19484.1《requirements and measurement methods of electromagnetic compatibility for 800mhz/2ghz cdma2000 digital cellular mobile telecommunications system - part 1: user equipment and ancillary equipment》

○ yd/t 1592.1《requirements and measurement methods of electromagnetic compatibility for 2ghz td-scdma digital cellular mobile telecommunications system - part 1: user equipment and ancillary equipment》

○ yd/t 2583.14《requirements and measurement methods of electromagnetic compatibility for cellular mobile telecommunications equipment - part 14: user equipment and ancillary equipment for lte》

○ yd/t 2583.18《requirements and measurement methods of electromagnetic compatibility for cellular mobile telecommunications equipment - part 18: user equipment and ancillary equipment for 5g》

○ yd/t 1597.1《requirements and measurement methods of electromagnetic compatibility for 2ghz cdma2000 digital cellular mobile telecommunications system - part 1: user equipment and ancillary equipment》

○ gb/t 19483《requirement and measurement methods of electromagnetic compatibility for cordless telephone》

○ etsi en 300 328《electromagnetic compatibility and radio spectrum matters(erm);wideband transmission systems; data transmission equipment operating in the 2,4ghz ism band and using wide band modulation techniques; harmonized en covering the essential requirements》

○ yd/t 3168《radio frequency technical requirement and test method for public wireless lan equipment》

○ gb/t 12572《universal requirements and measurement methods of parameters for radio transmitting equipment》

service process

q&a

do wifi or bluetooth products need srrc certification?

yes. general wifi and bluetooth products are included in this requirement, which means that if your products are equipped with wireless wifi or bluetooth functions, srrc certification is required.

if the non-independent module has been certified, does the complete product need srrc certification?

complete products use complete non-independent modules, and belong to household and office appliances, then complete products do not need to apply for srrc. the complete product uses restricted non-independent modules, and the complete product belongs to household and office appliances, so the complete product still needs to apply for srrc.

what tests are usually carried out on smart phones in ccc certification?

in addition to safety tests, smartphones are carried out：radiated continuous emission, radiated spurious emission, conduction continuous emission, conduction spurious emission, electrostatic discharge immunity, radiated immunity, electrical fast transient/burst immunity, surge immunity, conducted immunity, voltage dips, short interruptions and voltage variations immunity etc.

what is fully anechoic room?

the far is a shielding chamber with an absorbing material on its inner surface. used to simulate the free space of the transmission environment. since no reflection occurs and there is no interference model, the agreement between horizontal and vertical polarization is good. there is no competition between 3m and 10m. only 3m provides a low-cost, efficient and flexible test method for emc testing.

our advantage

authoritative qualification

noa has been approved by certification and accreditation administration of the people’s republic of china（cnca）(cnca-r-2002-051), and has obtained qualification of china inspection body and laboratory mandatory approval (cma),and has passed the multiple approvals of china national accreditation service for conformity assessment (cnas), international accreditation service (ias), united kingdom accreditation service (ukas), joint accreditation system of australia and new zealand (jas-anz). noa has been approved by state administration for market regulation of china, and has been recognized as inspection and testing institution of china's special equipment, as well as the qualification of china's national equipment supervision and engineering supervision. noa-dci is the notified body of the ce directive of the european commission. noa has been recognized by the international electrotechnical commission (iecq) by obtaining electronic component quality assessment system. it is also a national inspection and assessment notified body of import and export commodity in china.noa is a high-tech enterprise in shanghai.

improve performance, realize asset value appreciation, and service throughout the entire value chain

from pre-design to post-operation, noa has the ability to guarantee the whole life cycle of the business. noa, as an independent third-party inspection company, has a large number of domestic and international standards and specifications proficient in design, welding, non-destructive testing, painting, packaging and other fields the experienced team of professional engineers and inspection experts, with more than ten years of experience in the domestic market, is familiar with all aspects of the domestic industrial equipment supply chain, and can provide you with technical support services for the full life cycle of technical services in a timely manner, combining various products. inspection, certification, testing, consulting, and auditing services can provide you with one-stop all-round comprehensive services.

quality, efficiency and service

noa has formed a mature and solid operation system in the development of more than 20 years. we let technical experts who are familiar with market regulations and testing standards and have professional industry experience to carry out inspection, evaluation and design review work. while meeting the requirements of domestic and international standards, we ensure that customers can obtain satisfactory service results in the first time with accurate time-sensitive management methods, and ensure that customers can seize the opportunity in the market competition.

service area

noa inspection services currently cover europe, australia, russia, some middle east regions and most regions in china. noa can ensure the consistency and continuity of customer service in different regions, and eliminate the impact of unfamiliar environments on customer quality. the guarantees and the impact of project implementation enable customers to participate in different markets across the country or around the world with flawless quality.

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