the dish spectra, and dump raw voltages (written in real time to a circular buffer) for interferometric localization post-detection. The ATA with its 6-meter dishes may benefit greatly from the implementation of such a detection and localization strategy.\

![Improvement in the detection rate expected with the subarray-mode at the VLA for 3 subarrays (broken red line) and 8 subarrays (solid blue line) as a function of the log$N$-log$F$ parameter $\alpha$. The improvement is computed over the observation mode used by @law2015 ($\Delta\nu=256$ MHz, $\tau_{\rm int}=5$ ms). The thin vertical lines represent the 90% confidence bounds of $0.66<\alpha<0.96$ from this work. We have assumed that the reduction in the total number of baselines due to subarraying will allow for a larger bandwidth $\Delta\nu=750$ MHz, and a smaller integration interval of $\tau_{\rm int}=2.5$ ms.\[fig:vla\_subarrays\]](improvement.pdf){width="\linewidth"}

We next consider the FRB discovery and localization program at the VLA [@law2015] as a ‘case in point’ for how our bounds on $\alpha$ can have a significant impact on survey design. Consider partitioning the 27 antennas of the VLA into ‘subarrays’— groups of antennas that operate as independent interferometers, each with a unique pointing center.[^5] Subarraying is essentially a FoV–sensitivity trade-off, and since we find $\alpha<1$ with 