Regulation 38 Radiotelegraph operating rooms

be in such positions that no interference from extraneous mechanical or other noise will be caused to the proper reception of radio signals;

be placed as high in the ship as is practicable;

be of sufficient size and of adequate ventilation to enable the main and reserve radiotelegraph installations to be operated efficiently;

not be used for any purpose which would interfere with the operation of the installation;

be provided with an efficient two-way system for calling and voice communication with the bridge and any other place from which the ship is normally navigated. Such means of communication shall be independent of the main communication system on the ship and of the ship’s main source of electrical energy;

be provided with a reliable clock, the face of which shall be marked to indicate the silence periods, and with a dial of not less than 125 millimetres (5 inches) in diameter and a concentric seconds hand. It shall be securely mounted in the raiotelegraph operating room in such a position that the entire dial can be easily and accurately observed by the radio officer from the radiotelegraph operating position and from the position for testing the radiotelegraph auto alarm equipment;

be provided with a reliable emergency light consisting of anelectric lamp, operated from the reserve source of electrical energy, permanently arranged so as to provide satisfactory illumination of the operating controls of the main and reserve radiotelegraph installation and of the clock required by subparagraph (f) of this regulation and controlled by two-way switches placed near the main entrance to the radiotelegraph operating room and at the radiotelegraph operating position. These switches shall be clearly labelled to indicate their purpose;

be provided with an electric inspection lamp complete with a flexible lead of adequate length and operated from the reserve source of electrical energy. A serviceable flashlight shall also be provided and kept in the radiotelegraph operating room;

be provided with a chair capable of being fixed at the radiotelegraph operating position;

on new United Kingdom ships, be provided with alternative means of exit and be of sufficient size to enable the equipment installed in the room to be properly maintained.