Recoverability of S/N for SPs injected with the FRBfaker for two different methods of the S/N calculation (Original and Furby equivalent scaling) and three distinct ways of determining the injected SP properties (boxcar convolution, boxcar estimation based on width, and on the pulse’s maximum value). The mean value at which HEIMDALL detected the ten bursts per file is plotted together with the spread in these values. A one-to-one S/N relation is indicated with the dashed grey line.