SJ 20417-1994 地面炮瞄雷达通用规范
作者:标准资料网 时间:2024-05-10 17:53:21 浏览:8460
来源:标准资料网
基本信息
| 标准名称： | 地面炮瞄雷达通用规范 |
| 英文名称： | General specification for ground fire control radar |
| 中标分类： |
化工 >>
化工综合 >>
技术管理 |
| 发布日期： | 1994-09-30 |
| 实施日期： | 1994-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 26页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 化工 化工综合 技术管理
MIL-STD-188/140, MILITARY STANDARD: EQUIPMENT TECHNICAL DESIGN STANDARDS FOR COMMON LONG HAUL/TACTICAL RADIO COMMUNICATIONS IN THE LOW FREQUENCY BAND AND LOWER FREQUENCY BANDS (03 APR 1981)., This standard establishes minimum performance requirements in the form of standards and design objectives (DOs) to ensure interoperability of future communications equipment in the Extremely Low Frequency (ELF), Infra Low Frequency (ILF), Very Low Frequency (VLF) and Low Frequency (LF) bands. The frequency ranges of military communications equipment have been established as a result of band characteristics which do not necessarily depend upon administrative or scientific frequency band definitions. For example, in the area above ELF and ILF the military band of communications interest lies between 14 kilohertz (kHz) and 200 KHz, which extends into both VLF and LF bands. Also, efficient use of the limited bandwidth available at these lower frequencies precludes most analog modulation techniques; thus, this standard applies only to radio communication systems involving transmission of digital information.【英文标准名称】:Sodiumhexafluorosilicateforindustrialuse.Methodsoftest.
【原文标准名称】:工业用六氟硅酸钠.试验方法
【标准号】:NFT20-531-1984
【标准状态】:现行
【国别】:法国
【发布日期】:1984-02-01
【实施或试行日期】:1984-02-29
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:G12
【国际标准分类号】:71_060_50
【页数】:19P;A4
【正文语种】:其他
