Simulated A/B difference versus flight data at 30, 44, 353, 545, and 857 GHz. All spectra are differenced and divided by the median simulated spectrum. The flight data are shown in black, and the median simulated power in each bin is plotted in red. The coloured bands represent the asymmetric 68% and 95% confidence regions. The power spectra are binned into 300 logarithmically-spaced bins. The spectra shown here are the same as in Fig. 28. Notice the ℓ-scaling.