M51 天线及其馈线 标准查询与下载

NF C01-712:1992 电工词汇.第712章:天线

Electrotechnical vocabulary. Chapter 712 : antennas.

DIN 4131:1991 钢质无线电天线塔和天线杆

Steel radio towers and masts

IEC 61057:1991 带电作业用带绝缘臂的高架装置

Specifies the special technical characteristics, tests and checks of the insulating parts and of the conducting parts. Applies to devices used for nominal voltages between 1 kV and 800 kV.

Aerial devices with insulating boom used for live working

STAS 9689/8-1990 鞋类．鞋底滑动阻力的测定

1 Prezentul standard stabile?te metodele pentru determinarea rezisten?ei la alunecare a materialelor destinate pentru t?lpi de ?nc?l??minte. 2 Rezisten?a la alunecare se exprim? prin coeficientul de frecare. 3 Rezisten?a la alunecare se de

Footwear. Soles slipping resistance determination

STAS 9689/6-1990 鞋类．套鞋鞋头部分的抗变形的测定

Prezentul standard stabile?te metoda de determinare a rezisten?ei fix?rii para?ocului ?i a galo??rii ?n zona v?rfului, la ?nc?l??mintea confec?ionat? prin sistemele : IL (?nc?l??minte cu talp? lipit?), IV (?nc?l??minte cu talp? vulcanizat?) ?i IJ (?nc?l??

Footwear. Attachment resistance determination of parashock and galoshing under toe zone

STAS 9689/7-1990 鞋类．鞋带磨损的强度测定

Prezentul standard stabile?te metoda de determinare a rezisten?ei la uzur? a ?ireturilor, de orice tip, destinate ?nc?l??mintei.

Footwear strength determination at wear of laces

ITU-R INFORME BS.401-6 SPANISH-1990 发射天线在低频(LF)和中频(MF)广播

Transmitting antennas in LF and MF broadcasting

ITU-R QUESTION 88-1/4-1990 移动卫星业务的传输特点和移动地球站天线的特点

The ITU Radiocommunication Assembly considering a) that mobile earth-station antenna performance substantially affects system design in mobile-satellite services; b) that multipath fading due to reflection and shadowing due to foliage and natural or man-made structures are important factors in designing and constructing mobile-satellite systems; c) that there are various techniques which may be adopted for keeping mobile earth station antennas pointed correctly; d) that the configuration of airborne antenna systems is severely constrained by the effect on aircraft performance; e) that services using medium and low gain antennas are being used by systems of the International Mobile Satellite Organization (IMSO) and other organizations; f) that characteristics of multipath fading are being studied in ITU-R Study Group 3 under Question ITU-R 207/3; g) that some mobile ship, aircraft and land earth stations will be operating at high latitudes of the globe and may consequently have special propagation and antenna design problems.

Propagation and mobile earth station antenna characteristics for mobile-satellite services

ITU-R RAPPORT BO.808-3 FRENCH-1990 空间分割技术

Space-segment technology

NAVY MIL-C-28858 A (2)-1989 OA-9123/SRC天线耦合器组

This amendment forms a part of Military Specification MIL-C-28858A(EC), dated 2 December 1985, and is approved for use by the Space and Naval Warfare Systems Command, Department of the Navy, and i s available for use by all Departments and Agencies of the Department of Defense.

COUPLER GROUP, ANTENNA, OA-9123/SRC

SJ 3251-1989 地面炮瞄雷达天线通用技术条件

本标准规定了地面炮瞄雷达天线的通用的技术要求、试验方法、检验规则、标志、包装、运输和贮存。是天线设计、制造和验收的基本依据。 本标准适用于编写产品标准(技术条件)。 本标准未包括的内容、如有必要，应在产品标准(技术条件)中明确规定。

General specification for antiairoraft gun radar antenna

SJ 3219-1989 舰船雷达天线座通用技术条件

本标准规定了水面舰船雷达天线座的通用技术要求。试验方法、检验规则、标志、包装、运输、贮存。 本标准适用于水面舰船雷达天线座的设计、制造、检验，并作为编写产品标准(技术条件)的依据。

General specification for antennas pedestal of shipborne radar

SS 325-1988 室内天线用电气安全要求规范

This Singapore Standard specifies electrical safety requirements both for separate room, set-top and similar indoor aerials for radio and television receivers and for aerials built-in as an integral part of a receiver, if the latter are removable by hand and have a coaxial cable fitted with the requirements of BS 3041. Aerials with mains operated amplifiers should also comply with the requirements of SS 143. This standard is concerned with electrical safety only and not with the performance or other properties of the aerial.

SPECIFICATION FOR Electrical Safety Requirements For Room Aerials

SJ 2534.13-1987 天线测试方法.电磁辐射的危害

本标准适用于电磁辐射的安全限度及防护

Test procedures for antennas--Electromagnetic radiation hazards

SJ 2534.12-1987 天线测试方法.角跟踪天线的特殊测量

本标准适用于角跟踪天线的特殊测量。

Test procedures for antennas--Special measurement for angle-tracking antennas

SJ 2534.11-1987 天线测试方法.辐射效率的确定

本标准适用于对天线辐射效率的确定

Test procedures for antennas--Determination of radiation efficiency

SJ 2534.16-1987 天线测试方法.功率容量的测量

本标准适用于功率容量的测量。

Test procedures for antennas--Measurement of power-capacity

SJ 2534.15-1987 天线测试方法.环境因素

本标准适用于考虑天线测试中的环境因素。

Test procedures for antennas--Environmental factors

NAVY MIL-C-24219 A VALID NOTICE 1-1987 四通道自动调谐AN/SRA - 33天线耦合器

MIL-C-24219A, dated 11 October 1979, has been reviewed and determined to be valid for use in acquisition.

COUPLER, ANTENNA, AN/SRA - 33, FOUR CHANNEL AUTOMATICALLY TUNED

SJ 2534.7-1986 天线测试方法.幅度方向图的现场测量

本标准适用于幅度方向图的现场测量。

Test procedures for antennas--On-site measurements of amplitude pattens