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無(wú)源天線陣列檢測(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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本標(biāo)準(zhǔn)規(guī)定了防空導(dǎo)彈制導(dǎo)控制系統(tǒng)半實(shí)物仿真的試驗(yàn)?zāi)康?、試?yàn)依據(jù)、試驗(yàn)要求、試驗(yàn)系統(tǒng)構(gòu)成及項(xiàng)目、試驗(yàn)程序、試驗(yàn)數(shù)據(jù)處理與結(jié)果評(píng)定、試驗(yàn)報(bào)告。本標(biāo)準(zhǔn)適用于射頻尋的制導(dǎo)、光學(xué)尋的制導(dǎo)、射頻/光學(xué)復(fù)合尋的制導(dǎo)的防空導(dǎo)彈制導(dǎo)控制系統(tǒng)半實(shí)物仿真試驗(yàn)。
本標(biāo)準(zhǔn)規(guī)定了移動(dòng)通信系統(tǒng)多頻段基站無(wú)源天線(以下簡(jiǎn)稱“天線”)的術(shù)語(yǔ)定義、分類、電性能、機(jī)械特性、環(huán)境條件、測(cè)量方法、檢驗(yàn)規(guī)則以及標(biāo)志、包裝、運(yùn)輸和儲(chǔ)存。本標(biāo)準(zhǔn)適用于工作子頻段為806MHz~880MHz、870MHz~960MHz、1710MHz~1880MHz、1850MHz~1990MHz、1920MHz~2170MHz、2300MHz~2500MHz、2500MHz~2700MHz的移動(dòng)通信系統(tǒng)多頻段基站無(wú)源天線。工作于以上頻段的單頻段基站無(wú)源天線可參照使用。同類型其他頻段的無(wú)源天線也可參照使用。智能天線不適用本標(biāo)準(zhǔn)。
本標(biāo)準(zhǔn)規(guī)定了TD-LTE數(shù)字蜂窩移動(dòng)通信網(wǎng)智能天線的術(shù)語(yǔ)定義、分類、電性能、機(jī)械特性、環(huán)境條件、測(cè)量方法、檢驗(yàn)規(guī)則以及標(biāo)志、包裝、運(yùn)輸和儲(chǔ)存等。本標(biāo)準(zhǔn)適用于工作于室外的工作頻段為1880MHz~1920MHz(band 39,稱為F頻段)、2010MHz~2025MHz(band 34,稱為A頻段)或2500MHz~2690MHz(band 41,稱為D頻段)的TD-LTE系統(tǒng)智能天線。其他類型的智能天線也可參照本標(biāo)準(zhǔn)。
本標(biāo)準(zhǔn)規(guī)定了5G大規(guī)模無(wú)源天線陣列的電性能及機(jī)械性能要求,明確電路參數(shù)指標(biāo)、方向圖指標(biāo)以及環(huán)境可靠性試驗(yàn)的測(cè)試要求及方法。本標(biāo)準(zhǔn)適用于5G數(shù)字蜂窩移動(dòng)通信網(wǎng)中非AAU設(shè)備的無(wú)源天線陣列。本標(biāo)準(zhǔn)適用于工作頻段為6GHz以下,包含但不限于以下工作頻段2515MHz~2675MHz、3400MHz~3600MHz和4800MHz~5000MHz。
本標(biāo)準(zhǔn)規(guī)定了5G大規(guī)模無(wú)源天線陣列電性能及機(jī)械性能的驗(yàn)證測(cè)量方法以及測(cè)試場(chǎng)地和環(huán)境要求。本標(biāo)準(zhǔn)適用于工作頻段為6GHz以下,包含但不限于以下工作頻段2515MHz~2675MHz、3400MHz~3600MHz和4800MHz~5000MHz。
本標(biāo)準(zhǔn)規(guī)定了用于漁業(yè)船舶的射頻識(shí)別設(shè)備的組成、分類、功能、性能及安裝環(huán)境的通用技術(shù)要求。本標(biāo)準(zhǔn)適用于漁業(yè)船舶所用射頻識(shí)別設(shè)備的研制、選型和使用,可作為漁船射頻識(shí)別系統(tǒng)建設(shè)的參考依據(jù)。
本規(guī)范適用于110kV~1000kV交流架空輸電線路對(duì)符合相關(guān)標(biāo)準(zhǔn)要求的無(wú)線電臺(tái)有源干擾影響、無(wú)源干擾影響的防護(hù)設(shè)計(jì)。
本規(guī)范適用于±400kV~±800kV直流架空輸電線路對(duì)符合相關(guān)標(biāo)準(zhǔn)要求的無(wú)線電臺(tái)有源干擾影響、無(wú)源干擾影響的防護(hù)設(shè)計(jì)。
This Recommendation is intended to provide a basis for the derivation and estimation of the values of electromagnetic radiation from a broadcasting station that occurs at particular distances from the transmittersite. Using such information, responsible
This Recommendation is intended to provide a basis for the derivation and estimation of the values of electromagnetic radiation from a broadcasting station that occurs at particular distances from the transmitter site. Using such information, responsible organizations can then develop appropriate standards that may be used to protect humans from undesirable exposure to harmful radiation. The actual values to be applied in any regulation will naturally depend on decisions reached by responsible health agencies, domestic and worldwide.
This Recommendation provides unwanted emission power levels for the protection of EESS (passive)satellites operating in the band 1 400-1 427 MHz from MSS feeder links (space-to-Earth) that may operate inthe band 1 430-1 432 MHz and MSS feeder links (E
This Report presents an overview of Inspections Procedures in response to Question ITU-R 225/1 regarding inspection techniques and procedures. The Question relates to how administrations proceed in planning and conducting radio station inspections. The purpose of this Report is to provide general guidelines for planning and performing inspection activities on various types of radio stations. Inspection activities often include review and verification of both technical and administrative conditions assigned to a radio station or other spectrum user. Although the term “l(fā)icensed” is used throughout the document, this term can be considered here to include not only stations with licences issued by the regulatory authority, but also other authorized spectrum users (such as those operating with “l(fā)icence exempt” devices like low-power radios and RF devices operating under equipment standards approval). The primary focus of this report is to consider inspections that are conducted “on-site”, by visiting the transmitter location. Included in Annexes are some specific examples in certain services, toprovide examples of howthe general guidelines can be applied. This Report should be considered a general guidance document for inspections planning.
This Report is intended to provide a single basis for the derivation and estimation of the values of electromagnetic radiation from a broadcast station that occur at particular distances from the transmitter site. Using such information, responsible agencies can then develop appropriate standards that may be used to protect humans from undesirable exposure to harmful radiation.
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.
There are a number of primary space research service (SRS) allocations that can be used by deep-space missions for telecommand, telemetry, and radiometric data collection. Some of these allocations are designated specifically for deep-space SRS missions and are not available to non-deep-space SRS missions, while other allocations are available to both deep-space and non-deep-space SRS missions.
There are various types of intermodulation that can be found. In radio systems, these are manifested in a number of ways and defined as the following five types in Rec. ITU-R SM.1446
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.