The distance between active centers is the key factor in studying the activity of a gallium promoted zeolite catalyst. Special conditions, preserving the long distance between gallium and zeolite acid center (i.e. distance preservative conditions), were found in mechanically mixed catalysts. Catalyst samples were tested with the n-butane aromatization reaction under these conditions. The observed catalytic cooperation between active centers was ascribed to a bifunctional catalyst and/or a remote control mechanism.