Abstract: In a data link system a master station is provided with transmitting apparatus capable of transmitting quadrature phase signal components representative of two diverse products either or both of which may comprise radar picture products. The dual input channels to the transmitter comprise an in-phase channel and a quadrature channel for receiving data representative of two diverse products. Independent controllers are provided in each of the dual channels capable of apportioning the power in the respective channels. A multi-mode processor is coupled to the controller in each of the dual channels so that independent control of data rates, power and picture product being transmitted is achieved.

Abstract: In a multi-mode dual channlel data link there is provided a method for automatically controlling or allocating a predetermined amount of power to each of the dual channels. Two diverse product signal are transmitted from a master station down link to a plurality of ground stations. The ground stations receive the diverse product signals and individually determine the integrity of each product signal and transmit the product integrity information and a station identifier back to the master station. The master station processes the integrity information and reallocates a predetermined percentage of total power to be transmitted from each of the dual channels to achieve a predetermined product integrity at one or more of the plurality of ground stations.