Ratio of Planck-to-JVLA flux densities vs. JVLA flux densities at 30 (left-hand panel) and 44 GHz (right-hand panel). The Planck flux densities used are from the FLUX column of the ERCSC. The JVLA flux densities are extrapolated to the corresponding Planck central frequencies using the 33−43 GHz spectral index measured from the JVLA data. Some sources are excluded from this analysis, due to being extended, confused, or highly variable (see text for details). When multiple observations for a given source are available, these are averaged. Each panel shows the number of sources included, as well as the robust mean, median and standard deviations of the Planck-to-JVLA flux density ratios. To mitigate the effects of Eddington bias, we focus on the  >1.5 Jy sources. The solid red lines show the median ratios for these sources, while the dashed red lines show the +/−1 standard deviation range.