Technical Facilities Catalog, Volume 2

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National Aeronautics and Space Administration, 1974 - United States

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Page 8-41 - Three cable connector panels are provided for passing hard-line connections through the wall. The overall length of the anechoic chamber is 150 ft. The electromagnetic shielding is a minimum of -100 db from 10 kHz to 10,000 MHz. The rf-absorbed performance within a quiet zone of cylindrical shape, 20 ft in diameter x 57 ft long located in the working room, has the following reflection-versus-incident performance with frequency (all minimums): -30 db at 220 MHz, -40 db at 500 MHz, -45 db at 1250 MHz,...
Page 8-41 - ... ft. It is equipped with a large door which spans the full wall on the chamber's widest end to facilitate movement of large objects into and out of the work area. The working room itself, shaped like a modified square, has a clear height of 50 ft and an overall length of 60 ft; the wide varies from 50 ft at the large door to 36 ft at the beginning of the tapered portion, affording a nominal usable floor space of approximately 3,000 sq ft. The absorber on the floor surfaces is not bonded and is...

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