Declassified in Part - Sanitized Copy Approved for Rel a 2q_1_3 04 01 CIA-RDP61S00750A000200 _ 110093 4 50X1 -- Copy - n c-- -- - ' of 8 15 July 1958 Peripheral ELINT Miaaion• Capabilitiee 1 No exieting ferret configuration po•H••e• a probability of intercept i omparable to the Sy1tem Four 1upplemented by Syetems One and Three _ carried by the u-z The high probability reeults from a Greater coverage due to height 400 milee line flight b Futer •weeping receiver• c More po1itione d0 Automatic recording on both fi m and tape e Better •y•tem •en•itivity 2 Through t he u1e of the Sy•tem Four lios the be•t assurance to date against the surpri•e introduction o£ new electronice •yetem• by t he USSR We are concerned about electronic breakthrough in the development of new ay1teme 0 or the appearance of new equipments in the field and for the extent of their deployment as well as the preparation of in• trumont• for detection and countermeaeuroe which m ay be • helved pending ho•tilitie• 3 Coneiderable information which may well reduce the element of eurpriee can be collected through peripheral mi••ion• by eearching out aroa• of known or 8 Hpectod inten1ive electronic development and teeting auch a• at LENINCiBAD or OB at known airfields o • j I • • 't J ' • i ' I ' '·· -- · ' 1 I ' · ON y 4 Declassified in Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61 S00750A00020011-0093-4 50X1 Declassified in Part - Sanitized Copy Approved for Release 2013 01 CIA-RDP61S00750A000200110093-4 • ''--1 aL f _ _J 50X1 4 Areu for eearch It i• propoeed that Sy•tem Four peripheral ELINT miaeion• be directed againet LENINGRAD via the Gulf o Finland and ag a inet the White Sea dietrict via the BARENTS Sea s The coutal areu indicated generally lay within tb e White Sea district The USAFE ELINT Order of Battle EOB for 1 May 1958 show• the White Sea di•tric t to be populated by relatively few radar and those li•ted are of an older or antiquated type Baaed upon findings from prenou• peripheral ELINT mia•ion• we •trongly euepect that thh probably doee not repre•ent a true pictureo 6 Wberea• we pu t areat emphub on the •earch element of euch mi• •ion• to WlCOYer hitherto unknown• in the electronic field we are aware of a number of •pecific target• from which we expect to receive signals The•e epecific target• are lilted 11 follow• 50X1 • Declassified in --r · - · r - I • • • - i cNT · · - - · J '' • ONl Y Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A000200110093-4 Declassified in Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A000200110093-4 l '• •• ••' • • t J 50X1 3 50X1 7 Preliminary analyaie of four peripheral ELIN T m i•aiona in the BARENTS Sea flLACK Sea and CASPIAN Sea at a time when Syateni Four wu SQbject to greater malfunction than today auggeate atrongly t h at we ahould be able to obtain very •ignificant information in th• areaa now proposed At Tab Ai• aet forth aome of the more aignifi cant reault• of the preliminary analyaia of the earlier peripheral minion• s Apart from the value in iteelf of the information which can be collected the broad acope of collection of Syatem Four ahoutd provide consider able guidance for the dir•ction of other type• of ELIN T collection l so al EB 50X1 Chairman Ad Hoc R equirementa Committee Attachment Tab A JQR cw i -f A PD DCI 2-Dep Dir DPS DCI 3 - Dir Ops DPS DCI 4 -0S1 TCO ·1 S ¾ i'D pc ' 6-n l J 't 7-Chmn ARC- 8- PS DCI c hrono 1 - fl J '-'1 1 - j - ' _ 4C 2 - -0N I ' 7 1 · ' A tL· C · • • · · · · Declassified in Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A000200110093-4 Declassified in Part- Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A000200110093-4 - • -'' 0 '- · I t 4 C_l TAB 50X1 A Important Intercepta for Peripheral Syatem Four Mieeione_ lo The following example• of important i ntercept• collected from peripheral coYerage of the Soviet Union in the BARENTS Sea the BLACK Sea and the CASPIAN illuatrate the kind of explorator y work which can be accompliahed through peripheral miesiona 2 Syatem Four ia a relati vely new equipment and throu h continuoue dom estic te•ting and eome peripheral ELINT misaione on the edge of the Soviet the reliability bu been conetantly improving 50X1 ' i 1I h - i J0Lt ' fALENT ONLY '-- _ ·-- ' rcI 1- r- '· '11 • ·c i ' ' ' 1 De classified in Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A0002001 10093-4 50X1 Declassified in Part - Sanitized Copy Approved for Release 2013 04 01 CIA-RDP61S00750A000200110093-4 Declassified in Part - Sanitized Copy Approved for Release _ 2 01_3 04 01 CIA-RDP61_S007 9A000200110093-4