REG NASA-LLIS-0440--1996 Lessons Learned - Radio Frequency Assignments (~1976).pdf

上传人:unhappyhay135 文档编号:1018087 上传时间:2019-03-21 格式:PDF 页数:2 大小:12.86KB
下载 相关 举报
REG NASA-LLIS-0440--1996 Lessons Learned - Radio Frequency Assignments (~1976).pdf_第1页
第1页 / 共2页
REG NASA-LLIS-0440--1996 Lessons Learned - Radio Frequency Assignments (~1976).pdf_第2页
第2页 / 共2页
亲,该文档总共2页,全部预览完了,如果喜欢就下载吧!
资源描述

1、Lessons Learned Entry: 0440Lesson Info:a71 Lesson Number: 0440a71 Lesson Date: 1996-07-19a71 Submitting Organization: JPLa71 Submitted by: J.A. RobertsSubject: Radio Frequency Assignments (1976) Abstract: Delays to the SEASAT-A project demonstrated the need to prepare and submit requests for radio f

2、requency assignments during the conceptual stage of a project.Description of Driving Event: (Relevant Historical Lesson(s) Learned)The Office of Telecommunications Policy (OTP) in cooperation with the Office of Management and Budget (OMB) has established a procedure for the review of telecommunicati

3、ons systems for frequency availability and electromagnetic compatibility. Late transfer of SEASAT-A project responsibility to JPL resulted in delayed preparation and submission of the requisite review material.The choice of the Synthetic Aperture Radar (SAR) frequency especially was questionable for

4、 a few months. Frequency management personnel from several government agencies performed in “Tiger Team“ fashion to coordinate authorization of a specific frequency.Direct project impact was the delay in knowing this important parameter and the concomitant delay in the detailed design of the SAR.Add

5、itional Keyword(s): Conceptual Planning, RF AssignmentsLesson(s) Learned: Preparation and submission of radio frequency review material should be accomplished in the conceptual stage of a project.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Recomm

6、endation(s): Preparation and submission of radio frequency review material should be accomplished in the conceptual stage of a project.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Administration/Organizationa71 Communication SystemsAdditional Info: Approval Info: a71 Approval Date: 1996-05-09a71 Approval Name: Carol Dumaina71 Approval Organization: 125-204a71 Approval Phone Number: 818-354-8242Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-

展开阅读全文
相关资源
猜你喜欢
  • ASTM B8-2004 Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬、中等硬或软的同心绞捻铜导线的标准规范》.pdf ASTM B8-2004 Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬、中等硬或软的同心绞捻铜导线的标准规范》.pdf
  • ASTM B8-2011 Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬的 中等硬的或软的同心绞捻铜导线标准规格》.pdf ASTM B8-2011 Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬的 中等硬的或软的同心绞捻铜导线标准规格》.pdf
  • ASTM B8-2011(2017) Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬的 中等硬的或软的同心绞捻铜导线的标准规格》.pdf ASTM B8-2011(2017) Standard Specification for Concentric-Lay-Stranded Copper Conductors Hard Medium-Hard or Soft《硬的 中等硬的或软的同心绞捻铜导线的标准规格》.pdf
  • ASTM B80-2007 Standard Specification for Magnesium-Alloy Sand Castings《镁合金沙铸件的标准规范》.pdf ASTM B80-2007 Standard Specification for Magnesium-Alloy Sand Castings《镁合金沙铸件的标准规范》.pdf
  • ASTM B80-2009 Standard Specification for Magnesium-Alloy Sand Castings《镁合金砂型铸件标准规格》.pdf ASTM B80-2009 Standard Specification for Magnesium-Alloy Sand Castings《镁合金砂型铸件标准规格》.pdf
  • ASTM B80-2015 Standard Specification for Magnesium-Alloy Sand Castings《镁合金砂模铸件的标准规格》.pdf ASTM B80-2015 Standard Specification for Magnesium-Alloy Sand Castings《镁合金砂模铸件的标准规格》.pdf
  • ASTM B800-2005 Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes-Annealed and Intermediate Tempers《电气用退火及中温回火8000系列铝合金线的标准规范》.pdf ASTM B800-2005 Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes-Annealed and Intermediate Tempers《电气用退火及中温回火8000系列铝合金线的标准规范》.pdf
  • ASTM B800-2005(2011) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical PurposesAnnealed and Intermediate Tempers《8000系列铝合金电气线材的退火和中温回火标准规格》.pdf ASTM B800-2005(2011) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical PurposesAnnealed and Intermediate Tempers《8000系列铝合金电气线材的退火和中温回火标准规格》.pdf
  • ASTM B800-2005(2015) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes&x2014 Annealed and Intermediate Tempers《电气用8000系列铝合金丝的标准规格 退火和中度回火》.pdf ASTM B800-2005(2015) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes&x2014 Annealed and Intermediate Tempers《电气用8000系列铝合金丝的标准规格 退火和中度回火》.pdf
  • 相关搜索

    当前位置:首页 > 标准规范 > 国际标准 > 其他

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1