The tower-top deployment of base station electronics could prove of utility in future cellular communication applications. We present a scalable, non-radiative, automated calibration scheme for such a system, which employs an array of independently phased transceivers. By coupling an interlinear row of reference transceivers to the array, feedpoint calibration of the array is possible. The theoretical justification for the scheme is presented together with assessment of the accuracy of calibration possible using commercial off the shelf components.