From left to right: deconvolved temperature maps for 30, 44, and 70 GHz, corresponding PR3 maps, and differences between the two. The data include four years of observations for all radiometers of the respective frequency channel. The deconvolved maps are smoothed with a Gaussian beam of FWHM = 40′ (30 GHz), 30′ (44 GHz), or 20′ (70 GHz). We subtracted from the deconvolved maps the same monopole that had been subtracted from the PR3 map. The difference maps are dominated by white noise, which is suppressed in the deconvolved maps. The temperature scales of the maps are ±300 μK for temperature and ±100 μK for the difference.