title>GB/T 15844.2-1995 Environmental requirements and test methods for mobile communication frequency modulation radiotelephones - GB/T 15844.2-1995 - Chinese standardNet - bzxz.net
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GB/T 15844.2-1995 Environmental requirements and test methods for mobile communication frequency modulation radiotelephones
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Standard ID:
GB/T 15844.2-1995
Standard Name: Environmental requirements and test methods for mobile communication frequency modulation radiotelephones
This standard specifies the requirements and test methods for the adaptability of mobile communication FM radiotelephones to climate and mechanical environments. This standard applies to mobile communication FM radiotelephones and their ancillary equipment. GB/T 15844.2-1995 Environmental requirements and test methods for mobile communication FM radiotelephones GB/T15844.2-1995 Standard download decompression password: www.bzxz.net
Some standard content:
National Standard of the People's Republic of China FM radiotelephone for mobile communication Environmental requirements and test methodsfor radio transceiver employing F3E emissionused in the mobile services 1. Subject content and scope of application GB/T 15844.2--1995 This standard specifies the requirements and test methods for the adaptability of FM radiotelephone for mobile communication to the climate and mechanical environment. This standard applies to FM radiotelephone for mobile communication and its ancillary equipment. 2 Reference standards GB2423.16 Basic environmental test procedures for electric and electronic products Test J: Mildew test method GB2423.17 Basic environmental test procedures for electric and electronic products Test Ka: Salt spray test method GB2423.18 Basic environmental test procedures for electric and electronic products Test Kb: Alternating salt spray test method (sodium chloride solution) GB2424.9 Basic environmental test procedures for electric and electronic products Guide for mildew test GB2424.10 Basic environmental test procedures for electric and electronic products General guide for atmospheric corrosion acceleration test GB12192 Measurement methods for mobile communication FM radio telephone transmitters GB12193 Measurement methods for mobile communication FM radio telephone receivers GB/T15844.1 General technical conditions for mobile communication FM radio telephones 3—General requirements 3.1 Test conditions Unless otherwise specified in this standard or product standard, the test samples shall be inspected and tested under the following conditions. 3.1.1 Standard atmospheric conditions Standard atmospheric conditions shall be in accordance with Article 3.3 of GB12192 or Article 3.3 of GB12193. 3.1.2 Test condition tolerances Temperature tolerance: The test sample shall be completely surrounded by air except for the necessary supporting points. Temperature tolerance of the test area measurement system and the temperature of the air surrounding the test sample a. Temperature tolerance of each part of the test sample: high temperature is ±2°C, low temperature is ±3°C. b. Air pressure tolerance: ±1kPa (air pressure value is equal to or greater than 55kPa). Humidity tolerance: soil 5%. Vibration (sinusoidal) amplitude tolerance: soil 15%. Vibration frequency tolerance: ±2% (frequency greater than 50Hz), ±1Hz (frequency from 5Hz to 50Hz). Acceleration tolerance: ±10%. Accuracy of test equipment and instruments Approved by the State Administration of Technical Supervision on December 13, 1995 and implemented on June 1, 1996 GB/T15844.2—1995 The accuracy of test equipment and instruments used to control or monitor test parameters shall be calibrated regularly in accordance with relevant national metrological inspection regulations, and the total accuracy shall be better than 1/3 of the tolerance of the measured parameters. 3.1.4 Stability of test temperature 3.1.4.1 Working test samplebZxz.net When the temperature change rate of the largest heat capacity part of the test sample does not exceed 2C/h, it is considered that temperature stability has been achieved. 3.1.4.2 Non-working test sample When the difference between the temperature of the largest heat capacity part of the test sample and the required test temperature is within the tolerance, it is considered that temperature stability has been achieved. The time for the temperature stability of the test sample can be obtained according to Table 1. Table 1 Relationship between the mass of the test sample and the time to reach temperature stability Test sample mass G, kg 1. 5<≤G≤15 15 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.