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The results of experimental study of adaptive correction dynamics for collimated coherence beam at the exit of 1350 meter atmospheric path are presented. The method of phase portraits and chaotic maps for processing the experimental series is used that allowing to visualize the transition phenomenon and the bistable system conditions. The system response to variations of a proportional algorithm parameters for adaptive correction, the frequency of sampling and a scale feedback factor are in details analyzed. Relations of the size of a beam spot on a recording device matrix and the stability of a correction algorithm are experimentally considered.