Angular spectrum from COBE/DMR, SK, QMAP, TOCO97, and TOCO98 D‐band. The SK data have been recalibrated according to Mason et al. (1999), leading to an increase of 5%, and reduced according to the foreground contribution in de Oliveira–Costa et al. (1997), leading to a reduction of 2% (i.e., a net 3% increase in the mean and 5% increase in the error bars over Netterfield et al. 1997). The revised SK calibration error is 11%. The QMAP data (de Oliveira–Costa et al. 1998a) have an average calibration error of 12%. A correction for foreground emission of ~2% has been applied to the two K_a band measurements. The correction for foreground emission is ≈2%, although it has not yet been precisely determined and so is not included. Both SK and QMAP are calibrated with respect to Cas A. The TOCO97 data, which have a calibration error of 10%, are calibrated with respect to Jupiter. The TOCO98 data are shown with l‐space bandwidth as the horizontal bars. The cosmological models are computed with CMBFAST (Seljak & Zaldarriaga 1996). The dashed line is "standard CDM" (﹩\Omega _{m}=1﹩, ﹩\Omega _{b}=0.05﹩, ﹩h=0.5﹩), and the solid line is a "concordance model" (Wang et al. 1999; Turner 1999) with ﹩\Omega _{m}=0.33﹩, ﹩\Omega _{b}=0.041﹩, ﹩\Omega _{\Lambda }=0.67﹩, and ﹩h=0.65﹩. For COBE/DMR, we use Tegmark (1997). The error bars are "1 σ statistical."