M34 微波通信设备 标准查询与下载

YD/T 670-1994 微波铁塔质量分等

本标准规定了自立式微波铁塔(角钢结构)的质量等级及其要求。 本标准适用于自立式微波铁塔，是考核铁塔质量等级的依据。 本标准不适用于产品质量分选。

Quality grading criteria of microwave tower

IEC 60835-2-2:1994 数字微波无线电传输系统使用设备的测量方法 第2部分:地面无线电中继系统的测量 第2节:天线

Gives methods of measurement of electrical characteristics: antenna gain, radiation patterns, cross-polarization discrimination, return loss, multi-port antenna isolation. The methods described are suitable for both line-of-sight and tropospheric scatter

Methods of measurement for equipment used in digital microwave transmission systems - Part 2: Measurements on terrestrial radio-relay systems - Section 2: Antenna

JJG(邮电) 022-1994 微波中继测试仪检定规程

Specification for verification of microwave relay tester

DIN EN 60835-3-1:1993 数字微波无线电传输系统设备的测量方法.第3部分:卫星地面站测量方法.第1节:总则

The document describes methods of measurement applicable to satellite earth station systems using digital modulation.

Methods of measurement for equipment used in digital microwave radio transmission systems; part 3: measurements on satellite earth stations; section one: general (IEC 60835-3-1:1990); German version EN 60835-3-1:1992

DIN EN 60835-2-1:1993 数字微波无线电传输系统设备的测量方法.第2部分:地面无线电中断系统的测量.第1节:总则

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section one: general (IEC 60835-2-1:1990); German version EN 60835-2-1:1992

DIN EN 60835-1-1:1993 数字微波无线电传输系统设备的测量方法.第1部分:地面无线电中继系统和卫星地面站测量方法.第1节:总则

Methods of measurement for equipment used in digital microwave radio transmission systems; part 1: measurements common to terrestrial radio-relay systems and satellite earth stations; section one: general (IEC 60835-1-1:1990); German version EN 60835-1-1:

SJ 20357-1993 数字视距微波无线电设备的互通性和性能要求

Interoperability and performance standards for digital LOS microwave radio equipment

IEC 60835-2-4:1993 数字微波无线电传输系统使用设备的测量方法 第2部分:地面无线电中继系统的测量 第4节:发射机/接收机包括调制器/解调器

The measurements described are concerned with output frequency, R.F. output spectrum, R.F. outpout power, phase/amplitude error (for transmitters including modulators), local oscillator frequency, R.F. leakage spectrum, A.G.C. characteristic, selectivity

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section 4: transmitter/receiver including modulator/demodulator

IEC 60835-3-9:1993 数字微波无线电传输系统使用设备的测量方法 第3部分:卫星地面站的测量 第9节:SCP-PSK终端设备

The measurement methods described (measurements on PCM channel codec, of I.F. sub-system characteristics, of bit-error ratio, of cycle-skipping performance) are applicable to SCPC-PSK equipment used in international satellite systems. Most of the methods

Methods of measurement for equipment used in digital microwave radio transmission systems; part 3: measurements on satellite earth stations; section 9: terminal equipment SCP-PSK

IEC 60835-2-8:1993 数字微波无线电传输系统使用设备的测量方法 第2部分:地面无线电中继系统的测量 第8节:自适应均衡器

The measurements described are intended to characterize the system equalizer in the presence of selective fading and may also be performed on systems without adaptive equalizers. To take account of those properties of the system which are especially infl

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section 8: adaptive equalizer

IEC 60835-2-5:1993 数字微波无线电传输系统使用设备的测量方法 第2部分:地面无线电中继系统的测量 第5节:数字信号处理子系统

The methods of measurement described relate to the following principal functions of the sub-system: multiplexing of two or more bit streams, transmission quality evaluation for switching purposes and/or alarm indicating signal (AIS) insertion, coding and

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section 5: digital signal processing sub-system

ITU-T G.736-1993 工作在2048kbit/s的同步数字复用设备的特性

The 2048 kbiüs test signal shall be modulated by sinusoidal jitter. The equivalent binary content of the test signal

Characteristics of a Synchronous Digital Multiplex Equipment Operating at 2048 kbit/s - General Aspects of Digital Transmission (Study Group XV) 9 pp

prEN 60835-2-3-1993 数字微波无线电发射系统使用设备的测量方法.第2部分:地面无线电中继系统的测量方法.第3节:RF分支网络

Methods of measurement for equipment used in digital microwave radio transmission systems; part 2: measurements on terrestrial radio-relay systems; section 3: RF branching networks (IEC 835-2-3:1992)

SJ/T 10124-1991 2TW8-1型数字微波接力设备

本标准规定了2TW8-1型数字微波接力设备产品分类、技术要求、试验方法、检验规则和标志、包装、运输、贮存等基本要求。 本标准适用于2TW8-1型数字微波接力设备及同类型设备。 本设备用于各工业部门建立长2500km的干线及各种专用通信线路，可传送PCM二次群或PCM基群的语音编码信号。

Type KHG lever style slide switches, detail specification for

YD 343-1990 点对多点微波通信系统进网要求

Networking requirement for point-tc-multipoint radio telecommunication systems

JJG(邮电) 007-1990 微波系统分析仪检定规程

Specification for verification of microwave system analyzers

ITU-T G.711-1989 声音频率的零件与元件手册

The characteristics given below are recommended for encoding voice-frequency signals.

Pulse Code Modulation (PCM) of Voice Frequencies - General Aspects of Digital Transmission Systems; Terminal Equipments Study Groups XV and XVIII; 12 pp

JJG(邮电) 002-1989 波导标准失配负载检定规程

Specification for verification of wave guided standard mismatch load

JJG(邮电) 003-1989 ME62A型微波测试设备检定规程

Specification for verification of ME62A model microwave testing devices

ITU-T G.722-1988 使用64 kbit/s内的7kHz音频编解码器的系统方面

This erram contains typographical corrections that are needed in ITU-T Rec. G.722 (1988). The typos and the inadequate description of a figure were found in Fascicle 111.4 of the Blue Book (1988), and in the corresponding electronic files posted on ITU

7 kHz Audio-Coding within 64 kBit/s - General Aspects of Digital Transmission Systems; Terminal Equipments Study Group XV and XVIII; Covering Note May 30, 2003