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Author : John W Alcorn VK2JWA
Publisher : Lulu.com
Page : 238 pages
File Size : 48,9 Mb
Release : 1997
Category : Cipher and telegraph codes
ISBN : 9781863844246
Author : Valarie J. Anderson
Publisher : Valarie J. Anderson, Voleander Press
Page : 823 pages
File Size : 55,6 Mb
Release : 2021-10-24
Category : Biography & Autobiography
ISBN : 9781736706657
On 7 December 1941, Washington sent a message to its Pacific outposts about a potential Japanese attack. All but Pearl Harbor received it in time to prepare. New information from the archives of George Street, District Manager of RCA-Honolulu, exposes the fatal flaws that resulted in the surprise attack. Operational snafus, collusion, and spies weave a web of misdirection that entangles George Street and his children in one of history's biggest mistakes. Pearl Harbor's Final Warning amends the historical record by presenting previously unpublished material, including the original copy of General Marshall's coded message.
Author : Philip H. Berglund
Publisher : Unknown
Page : 272 pages
File Size : 50,6 Mb
Release : 1984
Category : Electronic
ISBN : UIUC:30112058020915
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 252 pages
File Size : 49,8 Mb
Release : 1961
Category : Electronic
ISBN : UOM:39015011821249
Author : U S Naval Academy
Publisher : US Naval Institute Press
Page : 372 pages
File Size : 45,7 Mb
Release : 1972
Category : Navigation
ISBN : UCSD:31822013413745
Author : United States. Department of the Army
Publisher : Unknown
Page : 448 pages
File Size : 46,7 Mb
Release : 1978
Category : Radioteletype
ISBN : MINN:31951D03770251N
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 352 pages
File Size : 51,8 Mb
Release : 1961
Category : Electronic
ISBN : MINN:31951D03408000Z
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 280 pages
File Size : 55,8 Mb
Release : 1965
Category : Communications, Military
ISBN : MINN:31951D03407837L
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 120 pages
File Size : 43,8 Mb
Release : 1955
Category : Aids to navigation
ISBN : UIUC:30112062146730
Author : United States. Bureau of Naval Personnel
Publisher : Lulu.com
Page : 193 pages
File Size : 51,8 Mb
Release : 2018-09-29
Category : Fiction
ISBN : 9780359123353
SONAR (sound navigation and ranging) systems have many similarities to RADAR and electro-optical systems. Again, detection is based on the propagation of waves between the target and detector. There are active sonar systems, where the wave propagates from the transmitter to the target and back to the receiver, analogous to pulse-echo radar. There are also passive sonar systems, where the target is the source of the energy which propagates to the receiver, analogous to passive infrared detection. Therefore, a great deal of what has been discussed about these systems will also apply to sonar. Sonar, however, differs fundamentally from radar and electro-optics because the energy is transferred by acoustics waves propagating in water. So we first begin by discussing the characteristics of acoustic waves.
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 188 pages
File Size : 41,9 Mb
Release : 1968
Category : Sonar
ISBN : UIUC:30112045754030
Fundamentals of sonar systems are presented in this book, prepared for both regular navy and naval reserve personnel who are seeking advancement in rating. An introductory description is first made of submarines and antisubmarine units. Determination of underwater targets is analyzed from the background of true and relative bearings, true and relative motion, and computation of target angles. Then, applications of both active and passive sonars are explained in connection with bathythermographs, fathometers, tape recorders, fire control techniques, internal and external communications systems, maintenance actions, test methods and equipment, and safety precautions. Basic principles of sound and temperature effects on wave propagation are also discussed. Illustrations for explanation use, information on training films and the sonar technician rating structure are also provided.
Author : Louis R. Pondy
Publisher : Unknown
Page : 336 pages
File Size : 45,8 Mb
Release : 1983
Category : Business & Economics
ISBN : STANFORD:36105039535146
Author : United States. Bureau of Naval Personnel
Publisher : Unknown
Page : 338 pages
File Size : 55,5 Mb
Release : 1971
Category : Electronic
ISBN : UCAL:B5497755
Author : United States. Marine Corps
Publisher : Unknown
Page : 118 pages
File Size : 47,6 Mb
Release : 1996
Category : Radio, Military
ISBN : MINN:30000005360122
Author : Anonim
Publisher : Unknown
Page : 144 pages
File Size : 41,6 Mb
Release : 1997
Category : Telecommunication systems
ISBN : MINN:30000004855858