Television in Underwater Weapons Testing

At the Naval Ordnance Test Station sea ranges at San Clemente Island, closed-circuit television is used both over and under water for certain phases of underwater weapons testing. The functions of this instrumentation are to provide: real-time data, engineering surveillance, monitoring, underwater launcher positioning, range surveillance, time-event data, trajectory data, and to assist in underwater search and recovery. At present, 17 closed-circuit systems are in use above and below the surface of the ocean, and more systems are being built. The new systems include an Image Orthicon camera for underwater search and a Vidicon-type system for operations at a depth of 6000 feet.