Top: distribution of raw burst bandwidths in each frequency band shown as violin plots. Grey violins correspond to measured bursts, while blue violins show RFI-extended bursts. The red diamonds mark the scintillation bandwidth predicted by the NE2001 model. Bottom: fractional bandwidth distributions (burst bandwidth divided by centre frequency). Grey violins correspond to measured bursts, while blue violins show RFI-extended bursts. Black points with error bars indicate the mean ± standard deviation for the measured bursts.