1 Scope
1.1 Theme Content
This specification specifies the technical requirements and quality assurance regulations for military dynamic and electromagnetic receivers. 1.2 Scope of Application
This specification is applicable to dynamic coil and electromagnetic receivers (hereinafter referred to as receivers) used in wired and special line communication in the land, sea, and air forces
2 References
The valid versions of the following documents form a part of this specification within the scope specified in this specification.
. GJB 179-86 Counting Sampling Inspection Procedure and TableSJ20128-92 Environmental Test Method for Communication Electroacoustic Devices SJ20368-93 Performance Measurement Method 3 Requirements
3.1 Detailed Specifications
Specific product requirements should comply with this specification and be specified in the detailed specifications. If there is a discrepancy between the requirements of this specification and the detailed specification, the detailed specification shall prevail
3.2 Qualification Evaluation
The products submitted in accordance with this specification should be products that have been identified as qualified or approved.
3 Materials
The materials used in the product should comply with the provisions of this specification. If certain materials are not specified, when using those materials, it should be ensured that the receiver meets the performance requirements specified in this specification. The acceptance or approval of any material in the product should not be used as a basis for the product to pass the acceptance.
3.3.1 Aluminum
If aluminum material is used in the product, its technical requirements should be specified in the detailed specifications.
. 3.3.2 Insulation and impregnating agentsFunction 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