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1. General. This section assigns maintenance functions and repair operations to be performed by the lowest appropriate maintenance echelon. The columns are as follows: nomenclature or standard item name. Additional descriptive data is included only where clarificat. n is necessary to identify the part. Components and parts comprising a maj.
4 dni temu · The AB-155 is a 40 foot mast primarily used for supporting wire antennas. The mast is sometimes referred to as the AB-155/GRA-4. The mast consists of eight MS-44 5 foot long sections that are guyed at three levels with adjustable rope guys.
GRA-4 HAS BEEN IN SERVICE SINCE 1951 AND MAY HAVE BEEN IN USE BEFORE THAT. THERE HAVE BEEN A NUMBER OF MODIFICATIONS AND VERSIONS, BUT SOME PARTS HAVE REMAINED THE SAME THRU SEVERAL DECADES OF USE. MAST SECTION AB-85 IS 3 FOOT LONG AND USES 16 SECTIONS IN ONE SET.
11 paź 2024 · The AB-86/GRA-4 is a 40 foot mast primarily used for supporting wire antennas. The mast consists of sixteen AB-85/GRA-4 3 foot long sections that are guyed at three levels with adjustable rope guys.
At frequencies above 4.0 MHz, only two antenna AB-155/U masts are required. Length of antenna should be positioned at right angles to direction of transmission and reception. The dark lines illustrated below show position in which masts are assembled so halyard holes face in right direction. GUY PLATE MX-378/U MAST AB-155/U GUY PLATE MX.378/U
TECHNICAL MANUAL. ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS USTS. FOR. ANTENNA GROUP AN/GRA-4. (NSN 5985-00-244-5147)
16 kwi 2019 · antenna groups an/gra-4 and an/gra-12 19 april 1961. tm 11-5985-231-24p. organizational, direct support, and general support maintenance repair parts and special tools list for antenna group an/gra-4 (nsn 5985-00-244-5147) june 1978 see also. gra - ground radio accessory.
