M36;M74 标准查询与下载

DIN EN 301234:2006 数字音频广播(DAB).多媒体对象传送(MOT)协议

The present document specifies a transmission protocol, which allows to broadcast various kinds of data using the Digital Audio Broadcasting (DAB) system.#,,#

Digital Audio Broadcasting (DAB) - Multimedia Object Transfer (MOT) protocol - (Endorsement of the English version EN 301234 V2.1.1 (2006-05) as German standard)

DIN IEC 60487-3:1994 地面无线电中继系统设备的测量方法.第3部分:模拟系统

The document deals with methods of measurement for equipment used in terrestrial radio-relay systems (simulated systems).

Methods of measurement for equipment used in terrestrial radio-relay systems; part 3: simulated systems (IEC 60487-3:1975); German version HD 477.3 S1:1988

DIN IEC 60487-3-6:1991 地面无线电中继系统设备的测量方法.第3部分:模拟系统.第6节:音响节目传送测量

The draft standard contains method for measurement for equipment used in terrestrial radio-relay systems, especially for simulated systems and requires to the audio requencies for television transmission.#,,#

Methods of measurement for equipment used in terrestrial radio-relay systems; simulated systems; measurement for sound-programme transmission; identical with IEC 60487-3-6:1984

DIN IEC 60487-2-5:1989 地面无线电中继系统设备的测量方法.第2部分:分系统测量.第5节:频率解调器

This standard describes methods of measurement for electrical properties of frequency demodulators.

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; frequency demodulators; identical with IEC 60487-2-5:1984

DIN IEC 60487-2-8:1989 地面无线电中继系统设备的测量方法.第2部分:分系统测量.第8节:无线电接收机

In this standard are described selected methods of measurement applicable to the electrical characteristics of terrestrial radio-relay transmitters; excluded are branching and switching networks.

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; radioreceivers; identical with IEC 60487-2-8:1986

DIN IEC 60487-2-7:1989 地面无线电中继系统设备的测量方法.第2部分:分系统测量.第7节:无线电发射机

In this standard are described selected methods of measurement applicable to the electrical characteristics of terrestrial radio-relay transmitters; excluded are branching and switching networks.

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; radio transmitters; identical with IEC 60487-2-7:1986

DIN IEC 60487-2-4:1988 地面无线电中继系统设备的测量方法.第2部分:分系统测量.第4节:频率调制器

Methods are given in this standard 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 preemphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals. Methods of measurement for frequency demodulators are given in IEC 487-2-5. Measurements between baseband terminals of modulator/demodulator assemblies are covered by various sections of IEC 487-3.

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; frequency modulators; identical with IEC 60487-2-4, edition 1984

DIN IEC 60487-2-1:1987 地面无线电中继系统设备测量方法.第2部分:分系统测量.第1节:总则

Methods of measurement for equipment used in terrestrial radio-relay system; measurements for sub-systems; general; identique with IEC 487-2-1, edition 1981

DIN IEC 60487-3-2:1987 地面无线电中继系统设备测量方法.第3部分:仿真系统.第2节:基带测量

Methods of measurement for equipment used in terrestrial radio-relay systems; simulated systems; measurement in the baseband; identical with IEC 60487-3-2:1981

DIN IEC 60487-3-4:1987 地面无线电中继系统设备测量方法.第3部分:仿真系统.第4节:分频多路传输测量

Methods of measurement for equipment used in terrestrial radio-relay systems; simulated systems; measurement for f.d.m. transmission; identical with IEC 60487-3-4, edition 1982

DIN IEC 60487-2-2:1987 地面无线电中继系统设备测量方法.分系统测量.备用信道切换开关

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; stand-by channel switching equipment; identical with IEC 60487-2-2, edition 1981

DIN IEC 60244-7:1985 无线电发射机测量方法.第7部分:频率1GHz以上的机箱辐射

Methods of measurement for radio transmitters; part 7: cabinet radiation at frequencies above 1 GHz

IEC 60487-2-4:1984 地面无线电中继系统所用设备的测量方法 第2部分:分系统测量 第4节:频率调制器

Applies to the electrical characteristics of frequency modulators. Where possible, only measurements of the basic modulator are involved, that is excluding the baseband section comprising the pre-emphasis network and the networks associated with sound ca

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2 : Measurements for sub-systems. Section Four - Frequency modulators

IEC 60487-2-5:1984 地面无线电中继系统所用设备的测量方法 第2部分:分系统测量 第5节:频率调制器

Applies to the electrical characteristics of frequency modulators, including threshold aspects. Where possible, only measurements of the basic modulator are involved, that is excluding de-emphasis network and the networks associated with sound carrier si

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2 : Measurements for sub-systems. Section Five - Frequency demodulators

IEC 60487-2-6:1984 地面无线电中继系统所用设备的测量方法 第2部分:分系统测量 第6节:分集、双路和热备用设备

Deals primarily with diversity equipment used for making two or more receivers at a radio-relay station suitable for diversity reception, with diversity equipment assumed to comprise the circuit for switching and/or combining the diversity channels, excl

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2 : Measurements for sub-systems. Section Six - Diversity, twin-path and hot stand-by equipment

IEC 60487-1:1984 地面无线电中继系统所用设备的测量方法 第1部分:分系统和模拟无线电中继系统通用测量方法

Applies to line-of-sight radio-relay systems and simulated radio-relay systems using frequency modulation. The tests described are limited to analogue transmission. Methods of measurement for parameters which are related to specific baseband signals are

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 1 : Measurements common to sub-systems and simulated radio-relay systems

DIN IEC 60244-4:1983 无线电发射机测量方法.第4部分:无线电话和播音发射机的幅/频特性及非线性失真

Methods of measurement for radio transmitters; part 4: amplitude/frequency characteristics and non-linearity distortion in transmitters for radiotelephony and sound broadcasting

DIN IEC 60244-3:1982 无线电发射机测量方法.第3部分:有用调制和无用调制

Methods of measurement for radio transmitters; part 3: wanted and unwanted modulation

DIN IEC 60244-2:1982 无线电发射机测量方法.第2部分:带宽、带外功率和非主振功率

Methods of measurement for radio transmitters; part 2: bandwidth, out-of-band power and power of non-essential oscillations

IEC 60487-3-4:1982 地面无线电中继系统所用设备的测量方法 第3部分:模拟系统 第4节:频分多路传输的测量

Deals with baseband-to-baseband measurements of the noise performance of simulated radio-relay systems used for frequency division multiplex telephony. The measurements covered are signal-related and are additional to those in IEC Publication IEC 487-3-2

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 3 : Simulated systems. Section Four - Measurements for f.d.m. transmission