VII the fact that UHF communications were impaired both by unfaailiarity of some units with task force calls and the location of cortein ships beyond UNF rare at the time. These ships were amployed in continued Preparations for the actual event, ani simulated participation in the rehearsal by trmamitting necessary reports, As a result of this re~ bearsal the shot—tims positioning of ships wos reexarined with a view towards improving comwnioations where possihle. Ships that had to be outside of WF renge during actual shot operations were directed te maintain voloe cammnications on the ship-shore HF voice frequen. i Dally cira:it drille on all voice circuits vere comtucted for several days. 13. hot tlae conditions involved the rapid delivery of high precedence traffic, the reduction of traffis to the absolute siniaum reqiired to execute the event, snd the provision of maximum flexi bility in case of eqipnont failure or unexpected deployment of task group units. In addition, eperations required that the Task Group Comsender maintain direct control of individual units and ships rather than exercise control throug: task urit cosmanders. Rapid and direct eomaunioutions with logistics and itinerant ships within range of fallow was also essential. To mest these requiremont s, supplenentery ecemuniocations instructions were issued before each shot. The ELAVO inetructicas directeds a. Pd #11 chips to teat al) ejuipment ct least 36 hours prior o