ABSTRACT
Numerical Electromagnetics Code-2 requires the broadcaster to change his starting parameters from field ratios to the voltages present at the drive point of the towers. This chapter develops the procedure for calculating the drive point voltages that create the target field ratios. The drive voltage at the base of a tower causes a current to flow in that tower. The current flowing in the driven tower will induce a current flow in the nearby towers even though the nearby towers have no drive voltage of their own. Consequently, when all towers are driven, the current flowing in a given tower is the result not only of the drive voltage at its base, but also of the current flowing in the neighboring towers. It is important to know that if the tower model includes a reactance in parallel with the exciting voltage, then that reactance may be in place on the excited tower when the towers are excited with specific volts.
