  We develop the formalism required to interpret, within a CDM framework, the
angular clustering of sources in a deep radio survey. The effect of nonlinear
evolution of density perturbations is discussed as is the effect of the assumed
redshift distribution of sources. We also investigate what redshift ranges
contribute to the clustering signal at different angular scales. Application of
the formalism is focussed on the clustering detected in the FIRST survey but
measurements made for other radio surveys are also investigated. We comment on
the implications for the evolution of clustering.
