Spectrum of the THOR source G48.384+0.789. The data points between 1 and 2 GHz are taken from the THOR survey, and the dashed line represents the fitted spectral index to these data points of α = 1.69 ± 0.02. The data point at 5 GHz (x-shape) is taken from the CORNISH survey (Purcell et al. 2013), and the data points at 4.85, 10.45, and 32 GHz (circles) are taken from Vollmer et al. (2008). For each data point, a 5σ uncertainty is shown.