Extended Data Figure 7: Normalized channel weights.
From: An absorption profile centred at 78 megahertz in the sky-averaged spectrum
The fraction of data integrated for each 390.6-kHz spectral bin are shown. a, The FM band causes the low weights above 87 MHz, because many 6.1-kHz raw spectral channels in this region are removed for all times. The weights are nearly identical across all hardware cases (H1–H6). b, A close-up showing the weights below the FM band, where there is little RFI to remove.
