M75 卫星广播设备 标准查询与下载

GY/T 148-2000 卫星数字电视接收机技术要求

Specification of measurement for satellite digital television receiver

ARMY MIL-HDBK-412 VALID NOTICE 1-2000 卫星地面站现场测量及设施设计手册

MIL-HDBK-412, dated 20 May 1981, has been reviewed and determined to be valid for use in acquistion.

SITE SURVEY AND FACILITY DESIGN HANDBOOK FOR SATELLITE EARTH STATIONS

DOD MIL-STD-188-185 CHG NOT 2 CONT. DIST.-1998 超高频军事卫星通信按需分配控制系统相互可操作性

INTEROPERABILITY OF UHF MILSATCOM DAMA CONTROL SYSTEM

INTEROPERABILITY OF UHF MILSATCOM DAMA CONTROL SYSTEM

ARMY MIL-STD-188-146 NOTICE 1-1998 卫星通信的互操作性和性能标准

This commercial item description covers brown kraft paper used for general wrapping applications.

INTEROPERABILITY AND PERFORMANCE STANDARDS FOR SATELLITE COMMUNICATIONS

ITU-R F.1338 FRENCH-1997 在空间-地球传输同步卫星轨道广播卫星业务的特定系统(声音)和1452-1492MHz频段内固定业务系统之间确定协调需求的阈值电平

Fixed radio-relay systems may be either analogue or digital. Many are mature systems which have been designed to take advantage of known topographical features, equipment parameters and propagation characteristics. The following system parameters or mitigation techniques should be reviewed and used to the extent practical towards achieving successful coordination, especially in the planning and implementation of new systems in the fixed service.

THRESHOLD LEVELS TO DETERMINE THE NEED TO COORDINATE BETWEEN PARTICULAR SYSTEMS IN THE BROADCASTING-SATELLITE SERVICE (SOUND) IN THE GEOSTATIONARY-SATELLITE ORBIT FOR SPACE-TO-EARTH TRANSMISSIONS AND THE FIXED SERVICE IN THE BAND 1 452-1 492 MHz

ITU-R F.1338 SPANISH-1997 在空间-地球传输同步卫星轨道广播卫星业务的特定系统(声音)和1452-1492MHz频段内固定业务系统之间确定协调需求的阈值电平

Fixed radio-relay systems may be either analogue or digital. Many are mature systems which have been designed to take advantage of known topographical features, equipment parameters and propagation characteristics. The following system parameters or mitigation techniques should be reviewed and used to the extent practical towards achieving successful coordination, especially in the planning and implementation of new systems in the fixed service.

THRESHOLD LEVELS TO DETERMINE THE NEED TO COORDINATE BETWEEN PARTICULAR SYSTEMS IN THE BROADCASTING-SATELLITE SERVICE (SOUND) IN THE GEOSTATIONARY-SATELLITE ORBIT FOR SPACE-TO-EARTH TRANSMISSIONS AND THE FIXED SERVICE IN THE BAND 1 452-1 492 MHz

BS EN 61079-5:1995 12 GHz 频段卫星广播传输接收机的测量方法 MAC/分组系统解码器单元的电气测量

The object of this part of IEC 1079 is to define the conditions and methods of measure-ment to be applied to MAC/packet decoder units. The specifications of the limit values of the various parameters of the decoder are outside the scope of this part. This unit can either be connected to the output of a DBS tuner unit or be a part of it. The methods of measurement concerning the DBS tuner part are described in part 2 of IEC 1079. The input signal is a baseband video signal encoded according to one of the following MAC standards: - D-MAC/packet; - D2 MAC/packet. The output signals are: - red, green, blue colour signals (R.G.B); - one or more audio signal(s); - the composite synchronization signal. NOTE - The methods of measurement can also be used for MAC/packet receivers with built-in MAC decoder units if R.G.B output signals are available.

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band. Electrical measurements on decoder units for MAC/packet systems

BS EN 61079-2:1995 12 GHz 频段卫星广播传输接收机的测量方法 DBS 调谐器单元的电气测量

This part of IEC 1079 applies to the tuner unit of a receiver for the direct reception of satellite broadcast transmissions in the 12 GHz band. The channels are those defined by WARC BS-77 and RARC SAT-83 [1] and the systems are those of CCIR Recommendation 650 [1]. The object of this part of IEC 1079 is to define the conditions and methods of measure-ment to be applied. This part does not specify performance requirements. The tuner unit comprises the channel selector and FM demodulator. The input to this unit is a group of intermediate frequency signals, usually in the range 1 GHz to 2 GHz, which is provided from an associated outdoor unit. The outdoor unit includes at least a micro-wave antenna and the frequency converter to the first intermediate frequency. Methods of measurement on outdoor units are described in Part 1 of International Standard IEC 1079. A decoder for baseband and data signals may be included in the tuner unit. Methods of measurement of the decoder, however, are described in Parts 4 and 5 of International Standard IEC 1079 (under consideration). note:* The figures in square brackets refer to the Bibliography (annex A).

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band. Electrical measurements on DBS tuner units

BS EN 61079-1:1995 12 GHz 频段卫星广播传输接收机的测量方法 室外机的射频测量

This International Standard applies to the outdoor unit of a receiver for the direct reception of satellite broadcast transmissions in the 12 GHz band. The channels are those defined by WARC BS-77 and RARC SAT-83 and the systems are those defined in CCIR Recommendation 650. The object of this standard is to define the conditions and methods of measurement to be applied. The standard does not specify performance requirements. An outdoor unit normally comprises three main parts, the antenna, the depolarizer and optional orthomode transducer (OMT), and the SHF converter as defined in clause 1.3. The methods of measuring the electrical properties described in this part of the standard apply particularly to the outdoor unit or the SHF converter. Methods of measurement on the associated DBS tuner unit are described in Part 2 of this standard.

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band. Radio-frequency measurements on outdoor units

BS EN 61079-3:1995 12 GHz 频段卫星广播传输接收机的测量方法 对包含室外单元和 DBS 调谐器单元的接收器系统的整体性能进行电气测量

To be read in conjunction with BS 5876:1980, BS EN 61079-1:1995, BS EN 61079-2:1995

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band. Electrical measurements of overall performance of receiver systems comprising an outdoor unit and a DBS tuner unit

DIN EN 61079-5:1994 12GHz频带卫星广播传输接收机测量方法.第5部分:MAC/包系统译码器单元测量方法

This document applies to the electrical measurements on decoder units for MAC/Packet systems on receivers for broadcasting satellite transmissions in the 12 GHz band. Object of this document is to define the conditions and the methods of measurements to be applied to MAC/Packet decoder units.

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band; part 5: electrical measurements on decoder units for MAC/packet systems (IEC 61079-5:1993); German version EN 61079-5:1993

DIN EN 61079-2:1994 12GHz频带卫星广播传输接收机测量方法.第2部分:卫星接收机电气测量

The document is to define the conditions and the methods of measurement of DBS tuner units for the direct reception of satellite broadcast transmissions in the 12 GHz band and does not specify performance requirements. The tuner unit comprise the channel selector and FM demodulator.

Methods of measurements on receivers for satellite broadcast transmissions in the 12 GHz band; part 2: electrical measurements on DBS tuner units (IEC 61079-2:1992); German version EN 61079-2:1993

DIN EN 61079-1:1994 12GHz频带卫星广播传输接收机测量方法.第1部分:露天设备射频测量

The document applies to the outfdoor unit of a receiver for the direct reception of satellite broadcast transmissions in the 12 GHz band. The channels are those defined by WARC BS-77 and RARC SAT-83 and the systems are those defined in CCIR Recommenmdation 650. The object of the document is to define the conditions and methods of measurement to be applied. The document does not specify performance requirements.

Methods of measurements on receivers for satellite broadcast transmissions in the 12 GHz band; part 1: radio-frequency measurement on outdoor units (IEC 61079-1:1992); German version EN 61079-1:1993

ITU-R REPORT BO.1075-2-1994 卫星高清电视

This Recommendation reflects the actual situation with respect to satellite broadcasting of HDTV. It deals in Part1 with the narrow RF-band systems whereas Part2 is devoted to the studies in the field of wide RF-band HDTV satellite broadcasting.

High-definition television by satellite

ITU-R REPORT BO.812-4-1994 在12 GHz波段用于规划卫星广播业务的计算机程序

Analysis programs have been established by the BR to assess the results of the plans during both conferences. Those analysis programs have to be used now when comparing results of the various synthesis programs.

Computer programs for planning broadcasting-satellite services in the 12 GHz band

DIN EN 61079-3:1993 12GHz频带卫星广播传输接收机测量方法.第3部分:包括户外装置和DBS调谐装置接收机和接收天线总性能电气测量

The document applies to the conditions and methods of measurement of overall performance of receiver systems comprising an outdoor unit and a DBS tuner unit for direct reception of satelitte broadcast transmissions in the 12 GHz band. The specifications of the limit values of the various parameters of the receiver systems are outside the scope of this standard.

Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band; part 3: electrical measurements of the overall performance of receiver systems comprising an outdoor unit and a DBS tuner unit (IEC 61079-3:1993); German version

ITU-R QUESTION 70-1/4-1993 保护地球同步卫星轨道免遭频率大于15 GHz的卫星固定业务中传送地球站所产生的强大干扰

The ITU Radiocommunication Assembly considering a) that some administrations use low levels of artificial energy dispersal on TV carriers which eases the coordination for some satellite networks; b) that the use of artificial energy dispersal may in some cases result in intra-network interference which adversely affects the attainment of the desired operating quality; c) that, where the operating frequencies of transmissions are known, their coordination may be facilitated when they are not subject to artificial energy dispersal; d) that the temporary increase of transmitted up-link power is an effective means of combatting fading due to rain (up-link power control); e) that when up-link power in the direction of a wanted satellite is temporarily increased another satellite may be subject to an interference increase due to differential rain attenuation on the two transmission paths, the attenuation differential expected to increase with inter-satellite spacing; f) that the greater the angular spacing between a wanted and an interfered-with satellite the smaller will be the fraction of the total interference in the interfered-with satellite that is subject to the increase and the more tolerable will be the interference increase; g) that such an interference increase will persist only for a small percentage of the time; h) that these considerations may offer relief for earth station operators under certain circumstances at frequencies above 15 GHz; j) that Recommendation ITU-R S.524 only specifies the earth station emission levels while it is the received power levels at the interfered-with satellite that is of concern; k) that while television carriers utilize energy dispersal to reduce the e.i.r.p. density levels, it also leads to a wider band of high density spectrum to be avoided by narrow-band carriers.

Protection of the geostationary-satellite orbit against unacceptable interference from transmitting earth stations in the fixed-satellite service at frequencies above 15 GHz

prEN 61079-5-1992 12GHz波段卫星广播发射用接收机的测量方法.第5部分:MAC/包系统用解码器装置的电测量

Methods of measurements on receivers for satellite broadcast transmissions in the 12 GHz band; part 5: electrical measurements on decoder units for MAC/packet systems

prEN 61079-4-1992 12GHz波段卫星广播发射用接收机的测量方法.第4部分:数字副载波/NTSC系统用声音/数据解码装置的电测量

Methods of measurement on receivers for broadcasting satellite transmissions in the 12 GHz band; part 4: electrical measurements on sound/data decoder units for the digital subcarrier/NTSC system

ITU-R BO.794 SPANISH-1992 将降雨引起的沿馈线链路信道对广播卫星业务(BSS)性能的影响降至最小的技术

El control autom?tico de ganancia a bordo del veh?culo espacial hace m?nimo el efecto de los desvanecimientos causados por la lluvia en la estaci?n del enlace de conexi?n sobre la relaci?n C/N del enlace descendente porque mantiene el amplificador de tubo de ondas progresivas TOP en saturaci?n. El CAG electr?nico opera en distintos canales y aumenta la ganancia del transpondedor de la se?al deseada y de toda parte de una se?al interferente que caiga dentro de la anchura de banda del filtro de canal deseado. Por tanto, durante la lluvia en la estaci?n o estaciones del enlace de conexi?n, el empleo del CAG permite el funcionamiento del transpondedor cerca del punto de saturaci?n, pero la relaci?n ?portadora deseada/porci?n de la portadora contrapolar adyacente interferente? que cae dentro de la anchura de banda del filtro del canal deseado permanece constante. As? pues, el empleo del CAG no tiene ning˙n efecto sobre la C/Iu contrapolar en los dos enlaces de conexi?n.

Techniques for minimizing the impact on the overall BSS system performance due to rain along the feeder-link path