
1.1 Scope This standard specifies the electromagnetic compatibility of mobile stations (MS) and their auxiliary equipment for GSM 900MHz and DCS 1800MHz digital cellular communication systems in the first and second stages of transmitting and receiving voice and/or data (EMC requirements, including measurement methods, frequency ranges, limits, and performance criteria. 1.2 Reference Standards The following standards contain provisions that, through reference in this standard, constitute provisions of this standard. At the time of publication of the standard, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 6113.1-1995 Specification for Radio Disturbance and Immunity Measurement Equipment GB 9 254-1998 Radio Disturbance Limits and Measurement Methods for Information Technology Equipment GB/T 17626.2-1998 Electromagnetic Compatibility Testing and Measurement Techniques, Electrostatic Discharge Immunity Test GB/T 17626.3-1998 Electromagnetic Compatibility, Testing and Measurement Techniques, Radio Frequency Electromagnetic Field Radiation Immunity Test GB/T 17626.4-1998 Electromagnetic Compatibility Testing and Measurement Techniques Electrical Fast Transient Pulse Group Immunity Test GB/T 17626.5-1998 Electromagnetic Compatibility, Testing and Measurement Techniques, Surge (Impulse) Immunity Test GB/T 17626.6-1998 Electromagnetic Compatibility Testing and Measurement Techniques Conducted Disturbance Induced by RF Fields Immunity Test GB/T 17626.11-1998 Electromagnetic Compatibility Testing and Measurement Techniques, Voltage Dips, Short Interruptions, and Voltage Variations Immunity Test
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China