According to standards • CISPR 13/GB13837: Limits and Measurement Methods for Radio Disturbance Characteristics of Sound and Television Broadcasting Receivers and Related Equipment • CISPR 20/GB9383: Limits and Measurement Methods for Disturbance Characteristics of Sound and Television Broadcasting Receivers and Related Equipment • GB19871: Electromagnetic Compatibility Performance Requirements and Measurement Methods for Digital Television Broadcasting Receivers Test Items • Disturbance Voltage - Power Terminal, 150kHz -30MHz, QP/AV • Disturbance Voltage - Antenna Terminal, 30M Hz-2150MHz, QP • Useful signal and disturbance signal voltage at the RF output end of patterned equipment with RF image modulator, 30M Hz-2.15GHz, QP • Telecom port common mode disturbance, 150kHz 30MHz, QP/AV • Radiated disturbance, 30M Hz-1GHz, QP • Radiated power - directly to the indoor satellite receiver tuning unit, 1G Hz-3G Hz, dBpW • Radiated power - directly to the outdoor unit of the indoor satellite receiver, 0.9G Hz-18G Hz, dBpW • Disturbance power, 30M Hz-300MHz, QP/AV • Harmonic current emission test, according to IEC61000-3-2/GB17625.1 • Electrostatic discharge immunity test, shell, contact discharge 4kV, air discharge 8kV • Electrical fast transient pulse group immunity, power supply 1kV, antenna 0.5kV Article link: Machine Tool Business Network https://www.jc35.com/Tech_news/Detail/8860.html
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