Expected observations of one-off FRBs by current and future surveys. Left: simulated dispersion measure distributions for various surveys. Middle: log N − log S distributions showing the number of detections above a S/N threshold for several surveys. Right: expected rates for each survey based on frbpoppy simulations. All rates have been set such that the simulated Parkes-HTRU rate corresponds to the observed Parkes-HTRU rate. We note that the size of this set of simulated detected Parkes-HTRU FRBs was large enough to produce reliable rates, but not large enough to properly sample the Parkes-HTRU distributions in the left panel.