33.060.30 无线中继和固定卫星通信系统 标准查询与下载
共找到 1372 条与 无线中继和固定卫星通信系统 相关的标准，共 92 页
This technical report contains the requirements necessary for the safety of personnel against hazards which may occur in operating and maintaining mobile radio equipment. Where mandatory requirements exist relating to safety, these take precedence over the requirements given in this report. This report applies to all mobile radio equipment and auxiliary apparatus, including combining units and matching networks, antenna systems and associated feeder-lines.Remote controls and private or public telephone interconnect circuits are also included.This report refers to all classes of protective insulation and equipment defined in IEC 536. NOTE — Power supplies and battery chargers operating outside the housing of the mobile or fixed radio installation are not included in this scope. This report deals with protection against: - injury; - electric shock; - skin burns; - high temperature and fire; - harmful radiation; miscellaneous hazards. Design and construction requirements and, where appropriate, test methods are specified covering: a) the safety of personnel when operating, carrying out routine adjustments to, and as far as practicable, during fault finding and repair of the equipment; b) the safety of personnel when the equipment is operating normally and also when it is operating under certain specific fault conditions which may arise in normal use; and c) the prevention of fire and its spread. The requirements do not necessarily ensure the safety of personnel working on the equipment when it is not in normal operation. Tests are specified, where appropriate, for checking that the equipment meets the safety requirements of this report when operating normally and also under the specified fault conditions. These tests should be carried out on a representative set of equipment in order to determine whether the design meets the requirements of the report. The use of this report is not, however, intended to be restricted to type tests. It may also be used for acceptance tests after installation of the equipment, for tests after modifications to parts of the equipment and for tests at appropriate intervals to ensure the continuing safety of the equipment throughout its life.
Guide for safe handling and operation of mobile radio equipment
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- 2015-09-03
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Methods are given in this section for the measurement of the electrical characteristics of frequency modulators. Furthermore, where possible, only measurements involving the basic modulator are considered, that is excluding the baseband section comprising the pre-emphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals. Methods of measurement for frequency demodulators are given in section six of pa rt 2 of this publication. Measurements between baseband terminals of modulator/demodulator assemblies are covered by various sections of pa rt 3 of this publication.
Methods of measurement for radio equipment used in satellite earth stations - Part 2: Measurements for sub-systems - Section five: Frequency modulators
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- 2015-09-03
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The standard conditions of measurement and the methods of measuring the characteristics given in this part of the standard are common to sub-systems and to combinations of sub-systems of satellite earth stations. These test methods are general and are applicable to all systems. The tests to be made should be agreed between the parties concerned.
Methods of measurement for radio equipment used in satellite earth stations. Part 1: General
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- 2015-09-03
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In this section selected methods of measurement are described which are applicable to the electrical characteristics of terrestrial radio-relay system transmitters of the heterodyne type excluding any r.f. branching and switching networks. The block diagram of Figure 1, page 18, is a functional representation of such a transmitter but in practice the actual diagram may differ in detail. Local oscillator noise, although an important parameter of a transmitter, is not usually measured on the transmitter itself, but rather between baseband terminals in the radio-relay system. This parameter, which results in path-loss-independent baseband noise, is not therefore considered in this section
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Seven: Radio transmitters
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- 2015-09-03
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The measurement methods described in this part are intended to reveal the transmission performance of satellite earth stations used for the transmission of f.d.m. telephony, monochrome television and colour television. The measurements are general and are applicable to combinations of two or more sub-systems. It is intended that this part shall be used in conjunction with Part 1 of this publication: Methods of Measurement Common to Sub-systems and Combinations of Sub-systems.
Methods of measurement for radio equipment used in satellite earth stations. Part 3: Methods of measurement on combinations of sub-systems. Section One: General
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- 2015-09-03
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This section deals with measurements for sub-systems used for stand-by channel switching. Methods of measurement are given for the transmission characteristics of switching sub-systems inserted in the transmission chain at baseband and at intermediate frequency, for the pilot and the noise-detector sub-systems, and for the operate and transfer times of the switches.
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Two: Stand-by channel switching equipment
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- 33.060.30
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- 2015-09-03
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In this section are described selected methods of measurement applicable to the electrical characteristics of terrestrial radio-relay-system receivers excluding any r.f. branching and switching networks. The block diagram of Figure 1, page 22 is a functional representation of such a receiver, but in practice the actual diagram may differ in detail, for example some stages, such as the r.f. amplifier, may be omitted. The noise of the local oscillator, although an important parameter of a receiver, is not usually measured on the receiver itself but rather between baseband terminals in the radiorelay system. This parameter, which results in path-loss-independent baseband noise, is not therefore considered in this section.
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Eight: Radio receivers
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- 2015-09-03
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This standard gives methods for measuring the figure of merit (GIT) of earth station receiving systems operating in the 4 GHz to 6 GHz range. One method, using stars having known flux densities at the site of the earth station, takes into account the error caused by various parameters. An indirect method is also given.
Methods of measurement for radio equipment used in satellite earth stations. Part 3: Methods of measurement on combinations of sub-systems. Section Two: Measurement of the figure of merit (G/T) of the receiving system in the 4 GHz to 6 GHz range
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- 2015-09-03
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This standard deals with methods of measurement for monochrome and colour television transmission. These measurements are additional to the measurements in the baseband given in Part 1, Section Four (IEC Publication 510-1-4), which are common to telephony and to television, e.g. group-delay and amplitude/frequency characteristics. The CCIR Recommendations and Reports which describe test waveforms appropriate to the various television systems in current use are listed in the references given in Clause 9.
Methods of measurement for radio equipment used in satellite earth stations. Part 3: Methods of measurement on combinations of sub-systems. Section Three: Measurements for monochrome and colour television transmission
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- 2015-09-03
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This section deals with the measurement of interference on simulated radio-relay systems for television and f.d.m. telephony transmission. The interference may originate either between signals within the same composite baseband of a single r.f. channel, or from other r.f. channels. Interference noise from other signals needs to be taken into account when making measurements on simulated systems in accordance with Part 3, Section Three: Measurements for Monochrome and Colour Television Transmission, Part 3, Section Four: Measurements for F.D.M. Transmission of this publication, in order to make the best estimate of the noise which may appear in a radio-relay system under operational conditions. Measurements are normally carried out both with and without the interfering source present in order to establish the noise increment resulting from the interference.
Methods of measurement for equipment used in terrestrial radio-relay systems - Part 3: Simulated systems - Section Five: Measurement of mutual interference
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- 2015-09-03
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Methods are given in this section for the measurement of the electrical characteristics of frequency demodulators. Threshold and carrier-to-noise ratio measurements are included because these are essential for satellite systems. Where possible, only measurements involving the basic demodulator are considered, excluding the equipment comprising the de-emphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals. Methods of measurement for frequency modulators are given in section five. Measurements between the baseband terminals of modulator/demodulator assemblies are covered by the various sections of part 3 of this publication.
Methods of measurements for radio equipment used in satellite earth stations - Part 2: Measurements for sub-systems - Section six: Frequency demodulators
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- 2015-09-03
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This section deals with methods of measurement for monochrome and colour television transmission over simulated radio-relay systems. The measurements are additional to those already given in Part 3, Section Two of this publication: Measurements in the Baseband, which are common to telephony and to television. The C.C.I.R. Recommendations which describe test waveforms appropriate to the various television systems in current use are listed in the references given in Clause 7.
Methods of measurement for equipment used in terrestrial radio-relay systems - Part 3: Simulated systems - Section Three: Measurements for monochrome and colour television transmission
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- 2015-09-03
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This section deals with measurements normally made at radio frequencies (r.f.), for transmitting and receiving equipment used in earth stations for communication through orbiting satellites. It applies both to sub-systems and to combinations of sub-systems.
Methods of measurement for radio equipment used in satellite earth stations. Part 1: Measurements common to sub-systems and combinations of sub-systems. Section Two: Measurements in the r.f. range
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- 2015-09-03
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This standard gives methods of measurement for the linear and non-linear characteristics of r.f. branching networks for radio-relay receivers and transmitters.
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Three: R.F. Branching networks
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- 2015-09-03
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This section describes methods of measurement of the electrical characteristics of up-converters and down-converters used in satellite earth station transmitters and receivers.
Methods of measurement for radio equipment used in satellite earth stations. Part 2: Measurements for sub-systems. Section Four: Up- and down-converters
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The test methods described in this Part 3 are general and are applicable to simulated systems comprising two or more sub-systems. These tests, which are described in subsequent sections, cover the transmission performance of systems used for the transmission of frequency division multiplex (f. d. m.) telephony, monochrome and colour television, sound programme and baseband digital information. This Part 3 should be used in conjunction with Part 1, Measurements Common to Sub-systems and Simulated Radio-relay Systems.
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 3: Simulated systems
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- 2015-09-03
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This section covers the methods of measurement to be used in order to evaluate the noise temperature and the noise figure of sub-systems, and/or combinations of sub-systems, under linear conditions where appropriate po rts are available. Measurements appropriate to specific systems or sub-systems are given in Pa rts 2 and 3 of this publication.
Methods of measurement for radio equipment used in satellite earth stations. Part 1: Measurements common to sub-systems and combinations of sub-systems. Section Five: Noise temperature measurements
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- 2015-09-03
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Digital selective-calling system for use in the maritime mobile service
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- 33.060.30
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- 2015-09-01
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Characteristics and protection criteria of receiving earth stations and characteristics of transmitting space stations in the radionavigation-satellite service (space-to-Earth) operating in the band 5 010-5 030 MHz
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- 33.060.30
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- 2015-09-01
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Technical characteristics of earth stations on board vessels communicating with FSS satellites in the frequency bands 5 925-6 425 MHz and 14-14.5 GHz which are allocated to the fixed-satellite service
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- 33.060.30
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- 2015-09-01
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