陸地移動和固定的無線電發(fā)射器和接收器檢測

陸地移動和固定的無線電發(fā)射器和接收器檢測項目報價？??解決方案？??檢測周期？??樣品要求？

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GB/T 50228-2011工程測量基本術語標準

本標準適用于工程測量及其有關應用領域。

ITU-R BO.1130-4 FRENCH-2001把1400-2700 MHz頻段分配給廣播衛(wèi)星業(yè)務(BSS)(聲音),用于車載式,便攜和固定接收機進行數(shù)字衛(wèi)星廣播

There is an increasing interest worldwide for digital sound broadcasting to vehicular, portable and fixed receivers in the broadcasting-satellite service (BSS) (sound) bands allocated at the World Administrative Radio Conference for Dealing with Frequency Allocations in Certain Parts of the Spectrum (Malaga-Torremolinos, 1992) (WARC-92), and that several satellite-based digital sound broadcasting services for national and supra-national coverage are being considered. Developed for both satellite and terrestrial broadcasting applications in order to allow a common low-cost receiver to be used. Digital System B, originally proposed by Voice of AmericdJet Propulsion Laboratory (VONJPL), was designed to provide maximum efficiency on board a communications satellite. Digital System Ds, also known as the Worldspace system, is primarily designed to provide satellite digital audio and data broadcasting for fixed and portable reception. Digital System DH, also known as the hybrid satellite terrestrial Worldspace system, is designed to provide satellite digital audio and data broadcasting for vehicular, fixed and portable reception by inexpensive common receivers. Digital System E, also known as the ARIB (Association of Radio Industries and Businesses) system, is designed to provide satellite and complementary terrestrial on-channel repeater services for high-quality audio and multimedia data for vehicular, portable and fixed reception.

ITU-R BO.1130-4 SPANISH-2001把1400-2700 MHz頻段分配給廣播衛(wèi)星業(yè)務(BSS)(聲音),用于車載式,便攜和固定接收機進行數(shù)字衛(wèi)星廣播

There is an increasing interest worldwide for digital sound broadcasting to vehicular, portable and fixed receivers in the broadcasting-satellite service (BSS) (sound) bands allocated at the World Administrative Radio Conference for Dealing with Frequency Allocations in Certain Parts of the Spectrum (Malaga-Torremolinos, 1992) (WARC-92), and that several satellite-based digital sound broadcasting services for national and supra-national coverage are being considered. Developed for both satellite and terrestrial broadcasting applications in order to allow a common low-cost receiver to be used. Digital System B, originally proposed by Voice of AmericdJet Propulsion Laboratory (VONJPL), was designed to provide maximum efficiency on board a communications satellite. Digital System Ds, also known as the Worldspace system, is primarily designed to provide satellite digital audio and data broadcasting for fixed and portable reception. Digital System DH, also known as the hybrid satellite terrestrial Worldspace system, is designed to provide satellite digital audio and data broadcasting for vehicular, fixed and portable reception by inexpensive common receivers. Digital System E, also known as the ARIB (Association of Radio Industries and Businesses) system, is designed to provide satellite and complementary terrestrial on-channel repeater services for high-quality audio and multimedia data for vehicular, portable and fixed reception.

ITU-R BS.1547-2001針對向工作在1400-2700MHz頻段上的車載臺,便攜和固定接收機進行混合衛(wèi)星陸地數(shù)字聲音廣播的系統(tǒng)的陸地部分

Digital System DH, also known as the hybrid satellite/terrestrial WorldSpace system, is designed to provide satellite digital audio and data broadcasting for vehicular, fixed and portable reception by inexpensive common receivers

ITU-R BS.1547 SPANISH-20011400-2700 MHz頻率范圍內車載式,便攜式和固定式接收器的混合衛(wèi)星地面數(shù)字聲音廣播系統(tǒng)的地面組件

The ITU Radiocommunication Assembly considering: a) that there is an increasing interest worldwide for terrestrial and satellite digital sound broadcasting (DSB) to vehicular, portable and fixed receivers in the frequency range 30-3 000 MHz for local, regional and national coverage; b) that the ITU-R has already adopted Recommendations ITU-R BS.774 and ITU-R BO.789 to indicate the necessary requirements for DSB systems to vehicular, portable and fixed receivers for terrestrial and satellite delivery, respectively; c) that by operating the broadcasting-satellite service (BSS) (sound) in an hybrid configuration the service objectives listed in b) above can be more adequately met; d) that Recommendations ITU-R BS.774 and ITU-R BO.789 recognize the benefits of complementary use of terrestrial and satellite systems, and call for a DSB system allowing a common receiver with common processing very large scale integration (VLSI) circuits and manufacturing of low-cost receivers through mass production; e) that Digital System D H described in Annex 2 meets most or all of the requirements of Recommendations ITU-R BS.774 and ITU-R BO.789, and that the system has been field tested and demonstrated in more than one country; f) that Digital System E described in Annex 3, meets most or all of the requirements of Recommendations ITU-R BS.774 and ITU-R BO.789, and that it has been field tested; g) that some systems included in Recommendation ITU-R BO.1130 have a terrestrial component which allows augmentation of the BSS (sound) part, hence creating a hybrid satellite/terrestrial system.

ITU-R F.1097-1-2000用來增強雷達系統(tǒng)和數(shù)字無線中繼系統(tǒng)之間兼容性的干擾減小選擇

The options listed below all depend on the condition that a particular radar installation has unequivocally been identified as the one causing the interference.

ITU-R F.1097-1 SPANISH-2000用來增強雷達系統(tǒng)和數(shù)字無線電中繼系統(tǒng)之間兼容性的干擾抑制方案

The ITU Radiocommunication Assembly, considering that radar systems can produce interference to digital radio-relay systems (DRRSs) in some situations; that there are two coupling mechanisms by which radiated energy from radar stations may be coupled into radio-relay systems: radar spurious emission in the radio-relay bands; radio-relay system front-end overload (receiver desensitization) caused by the radar fundamental frequency; that the most desirable method of mitigating the interference may be to reduce the spurious emissions at the radar transmitter to a sufficiently low level; that some of the techniques employed by radio-relay system designers to enhance system performance are expected to reduce the susceptibility of these systems to interference from radar transmitters.

ITU-R INFORME M.2080 SPANISH-2006在4-10 MHz頻段條件共享和使用的思考

In preparing the text for the draft CPM-07 Report, there were a number of input documents providing information on sharing conditions in the 4-10 MHz band. Although these documents have been taken into account in the revision of the draft CPM text for WRC-07 Agenda item 1.13, they contain valuable information for ITU-R studies in HF bands and have been used to create a new Report.

ITU-R INFORME RS.2094 SPANISH-2007在9300-9500 MHz頻段和9800-1000 MHz頻段地球勘探衛(wèi)星服務之間的無線電服務(主動)和固定服務9800-1000 MHz頻段間地球探索衛(wèi)星服務之間的兼容性的相關研究(活動)

The purpose of this Report is to summarize the results of the studies related to the compatibility between Earth exploration-satellite service (EESS)(active) and the radiodetermination service in the 9 300-9 500 MHz and 9 800-10 000 MHz bands and between EESS (active) and the fixed service in the 9 800-10 000 MHz band.

ITU-R INFORME SF.2046 SPANISH-2004測定18/19 GHz頻段上的固定業(yè)務站與非同步軌道衛(wèi)星操作的衛(wèi)星固定業(yè)務的地球站之間的潛在干擾以及通過緩解技術可能減少的量

Frequency bands have been allocated and identified for use by GSO and non-GSO FSS systems in bands shared on a primary basis with the FS. WRC-95/97 adopted a different set of provisions through No. 5.523A of the Radio Regulations (RR) to the non-GSO FSS utilizing the bands 18.8-19.3 GHz and 28.6-29.1 GHz from those provisions for non-GSO FSS utilizing bands outside these bands. This Report addresses only the 18.8-19.3 GHz band, which is referred to throughout as the 18/19 GHz band.

ITU-R INFORME SM.2092 SPANISH-2007積極的服務分配在相鄰或附近的區(qū)域對地球勘探衛(wèi)星服務(被動)相關的影響的研究

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.

ITU-R RAPPORT RS.2095 FRENCH-2007共享36-37 GHz頻段的固定和移動業(yè)務以及地球探測衛(wèi)星業(yè)務(無源)

The purpose of this report is to summarize the result of the studies on sharing the 36-37 GHz band by the fixed and mobile services and the Earth exploration-satellite service (EESS) (passive).

ITU-R RAPPORT RS.2096 FRENCH-2007固定和移動業(yè)務與地球探測衛(wèi)星業(yè)務(無源)共用10.6-10.68 GHz頻帶

The purpose of this report is to summarize the result of the studies on sharing the 36-37 GHz band by the fixed and mobile services and the Earth exploration-satellite service (EESS) (passive).

ITU-R REPORT BT.2069-4-2009陸地電子新聞采集(ENG),電視實況轉播(TVOB)和電子現(xiàn)場制作(EEP)系統(tǒng)的調諧范圍和運行特征

This Report provides information on the current status of terrestrial electronic news gathering (ENG), television outside broadcast (TVOB) and electronic field production (EFP) systems.