The invention relates to novel fungicidallly active compound combinations of 2\u2032-cyano-3,4-dichloroisothiazole-5-carboxanilide of the formula and active compounds listed in the disclosure. The computer system is configured with a bit mask to represent changes in object management data. The top drive rotates a first threaded tubular member relative to a second threaded tubular member. The solution provides a protection circuit to divide an input power surge into DC and AC in which AC will be dissipated in the protection circuit and the safe DC is sent to the output. The in-phase and quadrature transmit branches are calibrated by alternately determining the first and second calibration signals while at least varying respective most significant bits of the first and second digital signals, upon said varying the at least most significant bits keeping calibration bit values that correspond to minimum values of the digitized detected up-converted signal.