Accession Number : AD0136319


Title :   FIELD TESTING


Corporate Author : BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA


Report Date : 01 JUN 1957


Pagination or Media Count : 1


Descriptors :   *PSYCHOLOGICAL WARFARE, *PUBLIC ADDRESS SYSTEMS, *SPEECH, INTELLIGIBILITY, PROPAGATION, TEST EQUIPMENT, TEST METHODS, TESTS.


Distribution Statement : APPROVED FOR PUBLIC RELEASE