Relative signal-to-noise ratios for WMAP and LFI channels and various components, as defined in terms of the ratio between the mixing matrix and the total instrumental uncertainty, ψ = M/σ. The total instrumental uncertainty is derived by adding the white noise and instrumental uncertainty maps (as given by Figs. B.2 and B.3) in quadrature. Values are reported as the ratio between the most sensitive channel (marked by a red dot) and the given channel; points with error bars correspond to mean and standard deviations evaluated over the full sky. Panels with white background indicate intensity results, while panels with gray background indicates polarization results. All quantities are evaluated at a common angular resolution of 2° FWHM.