“Global” radio spectra for B1 (left) and B2+B3 (right). The spectrum for each α_ref spectral region from Fig. 13 has been shifted in log (I) − log (ν) space to create the “global” spectral shape. Fourth order polynomial fits through these data points are shown by solid thin black lines. JP (red), KP (black) and KGJP (blue) models are shown by the dashed lines. The color coding, based on the α_ref regions, is the same as in Fig. 13.