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短距離超寬帶設(shè)備檢測(cè)項(xiàng)目報(bào)價(jià)???解決方案???檢測(cè)周期???樣品要求? |
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本部分規(guī)定了無線通信設(shè)備及其關(guān)聯(lián)的輔助設(shè)備的電磁兼容性(EMC)限值、性能判據(jù)和測(cè)量方法等。本部分適用于除廣播接收機(jī)以外所有種類的無線通信設(shè)備。對(duì)于不適合在實(shí)驗(yàn)室環(huán)境下測(cè)試的特定產(chǎn)品(如大功率無線電發(fā)信機(jī)),可對(duì)設(shè)備進(jìn)行現(xiàn)場(chǎng)測(cè)試。在這種情況下,如果沒有適用的現(xiàn)場(chǎng)試驗(yàn)標(biāo)準(zhǔn)和方法,那么用于評(píng)估受試設(shè)備測(cè)量方法的基本原理和限值應(yīng)與本部分的規(guī)定一致。
本部分規(guī)定了移動(dòng)通信終端電源適配器的電磁兼容性(EMC)要求,包括限值、性能判據(jù)和測(cè)量方法等。本部分適用于移動(dòng)通信終端使用的各種外置電源適配器。
本標(biāo)準(zhǔn)規(guī)定了超寬帶技術(shù)收發(fā)信機(jī)、發(fā)信機(jī)、收信機(jī)的電磁兼容性(EMC)限值、性能判據(jù)和測(cè)量方法等。本標(biāo)準(zhǔn)適用于基于脈沖、改進(jìn)型脈沖和射頻載波的UWB通信技術(shù)的設(shè)備。本標(biāo)準(zhǔn)適用于UWB通信技術(shù)的固定(室內(nèi))、移動(dòng)和便攜應(yīng)用:-獨(dú)立無線設(shè)備,其控制裝置可選;-插入式無線設(shè)備,與主機(jī)設(shè)備一起使用或者在主機(jī)設(shè)備內(nèi)使用,例如個(gè)人電腦、手持終端等;-插入式無線設(shè)備,在組合設(shè)備內(nèi)使用,例如線纜調(diào)制解調(diào)器、機(jī)頂盒、接入點(diǎn)等;-組合設(shè)備,或者插入式無線設(shè)備與某一特定主機(jī)設(shè)備的組合;-用于道路和軌道交通工具。
本標(biāo)準(zhǔn)規(guī)定了使用超寬帶(UWB)技術(shù)的發(fā)射機(jī)、收發(fā)信機(jī)和接收機(jī)的技術(shù)要求和測(cè)試方法,包括等效全向輻射功率譜密度、帶寬、雜散發(fā)射、電磁兼容性要求、標(biāo)志、標(biāo)簽和說明書等。 本標(biāo)準(zhǔn)適用于超寬帶(UWB)設(shè)備。
that the total interference to systems operating in the broadcasting service, from all sourcesof interference, as prescribed in the Recommendation mentioned in considering d) above, should atno time exceed one per cent of the total receiving system n
The Radio Regulations have established criteria with regard to the amount of interference allowed between the broadcasting service and other services with a frequency allocation. This Recommendation provides a guideline for an acceptable limit for total interference to the terrestrial broadcasting services that may result from the emissions of radio devices.
This Recommendation provides a vocabulary of terms and definitions for the land mobile service which mayalso be applicable to other radiocommunication services.
This Report contains propagation aspects, system design parameters, possible applications and other technical/operational characteristics, which are required for the implementation of fixed wireless systems in the frequency ranges 57 GHz to 130 GHz. The applications include specific examples of outdoor/indoor wireless connections taking advantage of these frequency bands (i.e. 60 GHz (57-64 GHz), 70 GHz (71-76 GHz), 80 GHz (81-86 GHz), 95 GHz (92-95 GHz) and 120 GHz (110-130 GHz)). The example systems in the 120 GHz case study, actually cover systems in the 110-130 GHz band. It is intended that future versions of this Report would be needed.
This Report provides information on many of the technology trends concerning radio access networks foreseen at the time of preparation of Recommendation ITU-R M.1645.
As the bands 3 400-4 200 MHz and 4 500-4 800 MHz are allocated worldwide on a primary basis to the FSS, this Report presents the results of the sharing studies performed between the FSS networks using the geostationary satellite orbit (GSO) and IMT-Advanced systems.
This Report considers interferences from devices using ultra-wideband (UWB) technology on radiocommunication services. As a main objective, it evaluates UWB e.i.r.p. density required for the protection of radiocommunication services.This Report also includes laboratory and field measurements on the impact of devices using UWB technology on radiocommunication services.
This Recommendation offers an additional methodology for the evaluation of the effect of interferencebetween radiocommunication networks operating in a shared frequency band.
Taking into account that limits for unwanted emissions in the spurious domain have not yet been defined for the free-space condition, there is a need for a new Recommendation.
Taking into account that there are two general measurement approaches (time domain and frequencydomain) this Recommendation gives the appropriate techniques to be applied when measuring UWBtransmissions.
This Recommendation is offering a summary of studies related to the impact of devices using UWB technology on radiocommunication services. These may be used as guidance for administrations when developing their national ultra-wideband (UWB) rules.
This Recommendation contains the description of an algorithm for the scalable coding of narrow-band and wideband speech and audio signals at 8-32 kbit/s.