Blue curve shows visibility spectra on a 29 m east–west baseline for a model that includes the GLEAM point sources for the J0137 field, plus a diffuse all-sky model, both weighted by the wide-field telescope primary beam model of Fagnoni et al. (2017, 2019). The red curve shows the same models, but with the diffuse all-sky models scaled down by an arbitrary factor three. The black curve is the observed data.