We construct a family of random step functions

whose members all have the same power spectrum and such that as

converges to

, the Gaussian process with the same spectrum. We illustrate the procedure for calculating the general multivariate distribution of the processes

by calculating the univariate, bivariate and trivariate distributions. We show how a suitably constructed univariate entropy can serve as an index of the extent to which

has approached the Gaussian limit

).