Transfer functions for MUSTANG-2 (in blue) and AzTEC (in orange). Recovery of the smallest angular scales is limited bythe full width at half maximum (FWHM) beam size of each instrument, indicated on the right with purple dashed linesfor AzTEC and red dashed lines for MUSTANG-2. Both instruments subtract a common mode component to remove atmospheric noise, resulting in the loss of angular scales larger than the FoV, which is indicated by the dashed lines on the left. In addition, the AzTEC data reduction process includes an adaptive Wiener filter to ensure the recovery of point source fluxes with the correct amplitudes, which results in the amplitude of the transfer functions exceeding unity at some angular scales. For MUSTANG-2, the FoV and the FWHM are further apart and this filtering step was not required.