chennel to Helenwno, Oehu. In view OS the high optimum work Frequency forec~st for the period of the test~ it was decided thst three element bean Pntenngswould be used for long-h~l te~etyp communicationson the wire fmquenciea. Mr. AltonR. Hert, from the Office of the Chief Signpl Officer, wes furnished to assist in the ~st$lletion Of the beam ente.nms end to provide such technical t?ssistmce as WPS required in’ the constructim of the belance of the entenne fsrms and in t’hetesting of the redio trauxzltters. Mr. Hert gma invaluable assistance in the installationof the BC-339 trmsmitters,used on the circuits to Oahu. At this time it WPS eppe.rentth~t the power supplied by the engineers could not be relied upon due to the leek of voltage and frequency regulation end the impossibilityof spchronizing the loeds between any two gener~tors in order to provide continuous power. The generators t!vt were .tiished were 75 KY} Ceterpillers end were in very poor neckmis:l end elect~icel condition. It WPS therefore necesscry to order additionalpower equipment incorporatingoutput regul~tion md synchronizct:onfeatures for the trmsmitters, receivers, communic8tionis center End ‘theVHF installations. In ~ccordmce with the requirements of the constructionforces on Engebi, md !.N/I!?,C-l wes instelled with e ED-72 end a FE-95 power supply so es to provide signel communicationslocelly on Engebi and elso between thet islmd end Eniwetok. This initiel instell~tionwes completed ebout 26 Decembe~ 1947 end was leter sugme:.tedby the installation0? m edditilo~~l J.N/TRC-lsystem end tower facilities including teletype end telephone cable installations. Similer instellE58 Section XI