Comparison of the angular power spectrum () of the A12-HBA Stokes I image before and after subtraction of the 4924 component CLEAN model. The solid orange, blue, and grey curves correspond to the emission in the field (data before point source CLEAN model subtraction), the point source CLEAN model, and the residual emission, respectively. The dashed blue and grey curves represent the best-fit profiles of the point source CLEAN model () and the residual emission (), respectively. The error bars on data correspond to the 2σ uncertainty due to sample variance.