  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]
