NAVY MIL-P-28739 (2)-1970 PEDESTAL GROUP ANTENNA FOR IFF ANTENNAS AN UPA-57《AN UPA-57型敌我识别系统天线座架群》.pdf

1、MIL-P-2737 (2) 57 W 777770b 003245b T 0- 06- sy SUPERSEDNG Y MIL-P-2873Y(EC) AMENDMENT 2 !June 1970 I .- MIL-P=28739(EC) AMENDMENT 1 20 April 1970 MILITARY SPECIFICATION PEDESTAL -FROUP, ATENNA, FOR IFF ANTENNAS AN/PA-57 This amendment forms a part of Military Specification MIL-P- 28739(EC), 7 April

2、 1970. 1.1, line 4: Delete y solidstate“ and substitute “solid-state“. Page 4 3.5.14 Size and weight. . # 3.5.14.1 Pedestal group. The pedestal group shall be designed to mount on a flat, level surface. The base shall be covered and closed as theunit shall not require underneath access for maintenan

3、ce and servic- ing. It shall be designed to mount at three or more points on a bolt i/ Changes from previous issue. The outside margins of this docu- mentkiave been marked “#“ to indicate where changes (deletions, additions, etc.) from the previous issue have been made. This has been done as a conve

4、nience only and the Government assumes no liability whatsoever for any inaccuracies in these notations, Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content as written irrespective of the marginal notations and relationship to the last previ

5、ous issue. FSC 5985 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NnL-P-28739(EC j AMENDMENT 2 circle no greater than twenty-four + and Item (b), delete Class 4“ and substitute “Class 2“. 4.5.7, line 3: Delete “Hz“ and substitute “cycle“. Preparing activity: Navy - EC (Project 5985-N345) Page 4 of 4 pages Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-