发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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The purpose of this standard is to describe practical methods for measuring the transmission characteristics of a telephone handset or headset
Methods for measuring transmission performance of telephone handsets and headsets
本标准规定了消防员接触式送受话器的术语和定义、产品分类、技术要求、试验方法、检验规则、标志、包装、运输和贮存。 本标准适用于消防员接触式送受话器
Contact-type transmitter-receiver headset for fireman
本标准规定了送受话器组合件测量方法。 本标准适用于通信用送受话器组合件,也适用于送话器组和受话器组
Methods of measurement for transmitter-receiver assembly set
General specification for active ant-noise transmitter and receiver
本规范规定了军用头戴式送受话器组、受话器组和抗噪声耳罩的技术要求及质量保证。 本标准适用于陆、海、空三军有线、线通信用头戴式抗噪声送受话器组、受话器组和耳罩。本规范中所指的"产品"分别是指头戴式送受话器组、受话器组和耳罩
General specifications for anti-noise head set, receiver set and earpieces
Measuring methods for performance of transmitters and receivers
Sound system equipment. Part 7 : Headphones and headsets
Integrated Services Digital Network (ISDN). 3,1 kHz telephony teleservice. Attachment requirements for handset terminals.
Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. General method for "one package equipment"
The scope of this standard is to set up a suitable measuring methodology allowing accurate measurement of the maximum sound pressure level produced
Sound system equipment - Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - General method for "one package equipment"
The purpose of this standard is to describe practical methods for measuring the transmission characteristics of a telephone handset or headset
Methods for measuring transmission performance of telephone handsets and headsets
本标准规定了消防员接触式送受话器的术语和定义、产品分类、技术要求、试验方法、检验规则、标志、包装、运输和贮存。 本标准适用于消防员接触式送受话器
Contact-type transmitter-receiver headset for fireman
本标准规定了送受话器组合件测量方法。 本标准适用于通信用送受话器组合件,也适用于送话器组和受话器组
Methods of measurement for transmitter-receiver assembly set
General specification for active ant-noise transmitter and receiver
本规范规定了军用头戴式送受话器组、受话器组和抗噪声耳罩的技术要求及质量保证。 本标准适用于陆、海、空三军有线、线通信用头戴式抗噪声送受话器组、受话器组和耳罩。本规范中所指的"产品"分别是指头戴式送受话器组、受话器组和耳罩
General specifications for anti-noise head set, receiver set and earpieces
Measuring methods for performance of transmitters and receivers
Sound system equipment. Part 7 : Headphones and headsets
Integrated Services Digital Network (ISDN). 3,1 kHz telephony teleservice. Attachment requirements for handset terminals.
Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. General method for "one package equipment"
The scope of this standard is to set up a suitable measuring methodology allowing accurate measurement of the maximum sound pressure level produced
Sound system equipment - Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - General method for "one package equipment"