Measured RMS flux density (top) and equivalent brightness temperature (bottom) noise level of each individual data cube (spectral windows) imaged for the combined arrays (blue), compact 12 m array band 3 observations (green) and 7 m array band 4 to 7 (red). Black lines correspond to the target sensitivities requested for 1″ (top) and (bottom) resolution imaging. Brightness temperature noise levels have been calculated for a beam of 1.6″, 4″, and 15″ for combined, 12 m compact, and 7 m array, respectively. For completeness, compact 12 m array band 3 sensitivities are also displayed (orange) for data cubes imaged at 7 m array 15″ resolution. Target brightness temperature sensitivities are scaled down to that of the common beam of 1.6″ resolution used during imaging. See Sects. 2.2 and 3.2 for details.