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廣播電臺服務(wù)設(shè)備檢測項目報價???解決方案???檢測周期???樣品要求? |
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本部分為有下列需求的組織規(guī)定了質(zhì)量管理體系要求: a) 需要證實其具有穩(wěn)定地提供滿足顧客要求和適用的法律法規(guī)要求的產(chǎn)品的能力; b) 通過體系的有效應(yīng)用,包括體系持續(xù)改進過程的有效應(yīng)用,以及保證符合顧客要求和適用的法律法規(guī)要求,旨在增強顧客滿意。
The passive radio astronomy service (RAS) is studying natural phenomena producing radio emissions at frequencies fixed by the laws of nature. Primary allocations have been made to various space services in the Earth-to-space direction such as the fixed-satellite service (FSS), radionavigation-satellite service (RNSS), mobile-satellite service (MSS) and broadcasting-satellite service (BSS) in bands adjacent or nearby to bands allocated to the RAS.
This standard applies to both wireless communications devices (WDs) and hearing aids. It sets forth uniformmethods of measurement and parametric requirements for the electromagnetic and operational compatibility andaccessibility of hearing aids used with wireless communications devices, including cordless, cellular, PersonalCommunications Service (PCS) phones and Voice over Internet Protocol (VoIP) devices, operating in the range of800 MHz to 3 GHz. However, this version is focused on existing services, which are in common use. Accordingly,in this version tests are provided for services in the 800 - 950 MHz and 1.6 - 2.5 GHz frequency bands. Futureversions may add tests for other frequency bands, as they come into more common use.This standard is intended to apply to all types of hearing aids with acoustic output, including, as examples, behindthe-ear (BTE), in-the-ear (ITE), in-the-canal (ITC), and completely-in-the-canal (CIC) types. Test methods areprovided for hearing aids operating in acoustic (microphone input) mode or in T-coil input mode.The field levels called for in various places shall be maintained within the limits for RF safety, set forth in ANSIC95.1-1999, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio FrequencyElectromagnetic Fields, 3 kHz to 300 GHz.