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A History of U. S. Communications Security (Volumes I and Ii);1973

By: David G. Boak

....;: === - =---=: === ~ ;---::::: ~ .--==; -- =.-: ~ ~ E : . "'; I . ~ = . - = -= - - == OKlGINAL 3 Revene (Pap 4) BJak ------ --_. ----- -- ==:: ::=::... ...onsist of letters or digits (or both) in otherwise meaningless combinations of identicallength."-JUNE 71­ Basic Cryptologic Glossary. This definition ... ...=,_-::: ....•_. ...--.__. '!".;::::= ~::::. .._- ---- ....~~ =~-== /EO 1.t::t~ r.;:::::::-; =:'''3'':.~.': In comparing this one-time system and the l... ...CB (DWlG) ;, ... 2 1 0 58 SlgRB!J' ., 'mil SlJIP1'.1Ja JlDI3Z !RUII .. B C 1) B r G ( ". S 0 1 h 3 0 I I I I I I f I I AC'1"I9I I J I I , I I 1 1 • LI... ...s that lowered our confidence in its security and 10 the KY-l was retired in early 196i. This KY-3 is tile follow-on equipment to the KY-l. It provide... ...OD HF ndio c:ircuits oversea. (M. Bell's telephone syRem, you UDdentand, baa a bandwidth of cmly 3 KHz­ and still has a few quick and dirty WW n links...

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America's First Air Battles: Lessons Learned or Lessons Lost?

By: Aldon E. Purdham Jr.

.... . . . . . . . . . . . . . . 1 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 INITIAL PERIOD OF OPERATIONS IN THE KOREAN WAR, 25 JUNE–25 JULY 1950 . . . . . .5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3 INITIAL PERIOD OF OPERATIONS IN THE VIETNAM WAR, 2 MARCH–1 APRIL 1965 . . . 27 Notes . . . . . . . . . . . . . . . . . . . . ...

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