Determination of the Z' Mass and Couplings Below Threshold at the NLC

We investigate the capability of the NLC to indirectly determine both the mass as well as the couplings to leptons and $b$-quarks of a new neutral gauge boson below direct production threshold. By using data collected at several different values of the collider center of mass energy, we demonstrate how this can be done in an anonymous and model-independent manner. The procedure can be easily extended to the top and charm quark couplings.[To appear in the Proceedings of the 28th International Conference on High Energy Physics, Warsaw, Poland, 25-31 July 1996]