
Scope of Application: This standard is applicable to the measurement of the performance of frequency modulation (or phase modulation) wireless microphone systems in the frequency band specified by the state. This standard only includes the measurement of electrical performance. The safety and fire protection requirements are in accordance with GB8898 "Safety Requirements for Household and Similar General Purpose Electronic and Related Equipment Powered by Grid Power Supplies". The relevant markings should comply with the provisions of Appendix B5.1 of GB900 "Measurement Methods for Audio Amplifiers" and GB9031 "Interconnection and Matching Requirements for Household Sound System Equipment" P>
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