Delay and fringe rate power spectra of an example baseline where a strong RFI feature is seen. Delay vs. time plot (top-left) and delay vs. fringe rate plot (top-right) for the Stokes-I data after NCP subtraction. The dashed horizontal lines indicate the expected delay corresponding to the local RFI source at the building. Bottom left: power as a function of fringe rate at the expected delay for the local RFI source. The vertical dotted lines correspond to a fringe rate of 18 min⁻¹. Bottom right: power as a function of delay at the expected fringe rate of 18 min⁻¹. The vertical dashed line is the expected delay.