Various shots of sea water and clouds in the sky, of same with ship deck in foreground at end of the day, of technicians aboard the weather ship Quadra watching the sea, LS of another boat visible, of radio room, of a man at work on typewriter, of radio control panel, of men manipulating radio knobs and other communication instruments, of the "Mufax" recorder machine, of a clock, of radio control panel, of a man talking into radio microphone with another man standing by, of radio operator at teletype machine with several shots of the machine, of operators at work in radio room.