  We present an optimized layout of horn positions for the Degree Angular Scale
Interferometer (DASI), which provides good coverage of the u-v plane and 3-fold
symmetry. We investigate how an optimal subspace filtering analysis of a single
pointing of DASI could be used to determine the anisotropies in the cosmic
microwave background over a range of angular scales near 30'. We discuss the
complementarity between the angular scales probed by DASI and NASA's MAP
satellite at 30GHz and strategies for imaging the sky at these frequencies.
Finally, we quantitatively assess how well the angular power spectrum can be
recovered by deconvolution of linear combinations of squares of the DASI
visibilities.
