Comparison of the spectral windows of the time series of the CORALIE data (top panel) and the one of the combined time series of the CORALIE, UVES and UCLES data with standard weights (middle panel) and sidelobe-optimised weights (bottom panel). The daily aliases are already much reduced in the case of the combined time series with standard weights, as expected from the fact that UCLES nights fill several gaps in the CORALIE and UVES time series.