Abstract :
The effect of expanding demand on the design of a network for the conveyance of vision, sound and the control of programmes within a television programme organization is described. Reference is made to problems associated with exchange of programmes with similar organizations. Outside broadcast radio links and methods adopted whereby a number of contractors can participate in a composite link are discussed. A new microwave link for monitoring purposes is described, with particular reference to the automatic switching and monitoring facilities carried out over an associated u.h.f. link. Uses of the communication systems other than for scheduled programme transmission are described, and the paper concludes with a short account of future plans and developments.