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Resonance regime on a plasma sandwich simulates a left-hand material broadcasting condition

The very fast variations on the real propagation conditions for electromagnetic waves can be simulated by a plasma sandwich model consistent in three iterated plasma layers: unmagnetized-magnetized-unmagnetized, in which we can establish resonant conditions (left-hand material conditions) by tuning the magnetization and electric potential intensity. In this paper we show how to prevent drastically changes on the broadcasting conditions to maintain high definition and few waste of information for a continuous process. To this end we recall some recent results we have obtained about the role of the Fredholm's alternative on the resonant regime broadcasting conditions. Then we use the plasma sandwich model to predict the sudden real media changes. So we suggest incorporating a double system that oscillates between both to avoid the loss of the signal as occurs nowadays. In other words we do not try to avoid wave's confinement but we take it into account.