sb’’’lw(Which also served as the primsv e-ouation ohannel)was manned on the Flag Bridge. In order to provide the Scientific Director, who was embarked in the MT. MCK-, tith direct telephone serv- ice (Pr~ary and alternate channels) to the Atomic Energy Commission control station on Parry Island and the Zero Islsmd, two portable field telephone sets were located on the Flag Bridge and patched i directly into the carrier system on MT. MCKINLEY. By means of ~tching at the various shore-based switchboards,direct connections to Atomic Energy Commission cOntrOl station and the Zero Island were acccsnplished.The General Warning circuit (~ voice transmitted from \ the oontrol staticm) which provided test timing information,was reoeived on the Flag Bridge and in the pilot house by remote speaker. The informationreoeived was relayed over the ship?s general announcin: system for the benefit of personnel throughout the ship. A receiver in the Combat InformationCenter also covered the General Warn. ing oirouit, where the informationreceived was relayed to aircraft on a comnon VHF voice ohannel. This provided the aircraft with a secondary means of reoeiving test timing Infonuation sime they were also guarding the HF voice General Warning cirouit. About fwr hours prior to the first test, a fkilure of the evaouation net r~ote control unit located on the Flag Bridge irrlioated the necessi@ of pmtiding duplicate facilities. It was also discwered that the transmitter on the AVR oarrying the evaouatim ~rty had been accidentally detuned and was off frequenoy. These diffioultiee 108 . m