Periodical signal transmission of waves through a one-dimensional array of coupled nonlinear electronic excitable cells have been investigated experimentally. Periodic wave trains give rise to a full devil’s staircase. The dependence of firing numbers defined for an excitable medium, on the amplitude and frequency of forcing, excitability of the medium, and coupling strength between cells is investigated. A nonmonotonic dependence between the locking range and the excitability has been observed for various n:m resonance regions, for different coupling strengths.
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