a control end pstch bored. This =rmgement mtided a flexible mm of making the necessery pstches to estebush dfict voice chennels between any or all of the stretegic pointe end elso provided e meens of constantly checking the o~rstion of the verious = links. Two submarine cebles pro- vialingtwo voice channels were also tistdled tit~een the ~ Wlding f ; on One of these connected # $ k , the Eniwetok BD-72 switchboardwith the control ststion for use as e beck. ~ Eniwetok end the control station on psrrY Isl~d. t up to the AN/TRC-l link. * At l@o on Peter Xrey Day, one circuit from each of sk AN/TRC chmnels (channels 301, 302, 309, 310, 304 end n5) together fith the cable circuit from Perry Islend were cut into the control bo8rd and tested out satisfactorily. Shortly thereafter,the #GO-7, the N-4 end the AV-5 moved to their essigned I anchorages off Parry Island. Communicationswere egein checked and found to be working satisfactorily. Checks were continued throughout the night until apprcdmetelyO1.30 at which tim ell remeining personnel on the Zero Islsnd were evacueted. The network then served only the MT. McKINIEY end the control stetione The second submarine cable circuit from the control stetion on Perry Island to the comunicetions center on Eniwtokwes used to coordinate the timing signels for Project Fitswilliam (transmittedfrom Eniwetok) with operations st the control stetion. The general warning snd evacuation net transmissionsfrom the control station on 3.0 megac~las and 5545 kilocycles were monitored at Eniwetok end their reception wes reported to the control stetion by use of this oable circuit. . Only one change wes made in preparation for Xray Day. Extre PE-95 . 64 Section XI, _