This standard specifies the terminology, measurement instruments, measurement conditions, and measurement methods of automotive amplifiers, amplifiers, and amplifiers. This standard is applicable to the standard measurement method for the electrical performance of automotive receivers, amplifiers, and amplifiers (hereinafter referred to as receivers) operating at frequencies ranging from 526.5kHz to 26.1MHz for amplitude modulation broadcasting and 87-108MHz for frequency modulation broadcasting. 2. Reference standard GB 2018 Measurement methods for magnetic tape recorders GB 2846 Measurement methods for amplitude modulation broadcasting radios GB 6163: Measurement methods for frequency modulation broadcasting receivers GB Limits and measurement methods for interference characteristics of sound and television broadcasting receivers and related equipment GB 3117 Measurement methods for radiation immunity of sound and television broadcasting receivers and related equipment 3. Except for the following terms specified in this standard, other terms shall follow GB 2018, GB 2846, and GB 6163, The provisions of GB 3117 and GB methods for measuring the radiation immunity of sound and television broadcasting receivers and related equipment
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