to coordinate such cryptographicmd other arrangements es were involvud in this request for the tr@nSd8Si0n of timing sigmls to outlying points from Eniwetok. He also initi~ted ~esures for t~ design end construction of EIkeying device by which these signals could be transmitted automatically and siunlteneouslyfrom the (3) BC-61O ~th 100 Percent beck-uP* These Psrticulm installationsrequired sntennae that would reech short, medium end long range potits to obtain necess~Y c~erege. Antennae were designed, crystals were requisitionedfor the frequencies essigned, and 1st Lt. A. J. Sebel, of the radio section, wes sent to Eniwetok with advance informationfor the signal personnel there. ,, ., In this connection,mention shald be made of the excellent coopera- I 1 tion and effort of Captain WiHred Weshcoe, hmy Security representative, Middle Pacific Detachment. Captati Weshcoets breed knowledge of cryptographic and transmission security problems, his ebillty to design end a.esistin the constructionof complicated equipssnt was of inestimable value in ~oviding the ke@ng equipment in time for the opsretion. He elso prepared the cryptographicsystem that wes used for the transmission of the timing signels in a secure manner. On lMsrch almost allnwmbers of the Commnicetions Staff were assembled et Fort Shefter for a week of joint ection on remainfng ~oblema before departing by ship and eir in the movement of main headquartersto Eniwstok. In the forward area allVHF circuits were completed to the outlying islends, and the wire tams had completed the installation of telephone exchanges St all locetions. The cables end telephones used in connection 61 section XI 7