  The presence and detectability of coherent radio emission from compact binary
mergers (containing at least one neutron star) remains poorly constrained due
to large uncertainties in the models. These compact binary mergers may
initially be detected as Short Gamma-ray Bursts (SGRBs) or via their
gravitational wave emission. Several radio facilities have developed rapid
response modes enabling them to trigger on these events and search for this
emission. For this paper, we constrain this coherent radio emission using the
deepest available constraints for GRB 150424A, which were obtained via a
triggered observation with the Murchison Widefield Array. We then expand this
analysis to determine the properties of magnetar merger remnants that may be
formed via a general population of binary neutron star mergers. Our results
demonstrate that many of the potential coherent emission mechanisms that have
been proposed for such events can be detected or very tightly constrained by
the complementary strategies used by the current generation of low-frequency
radio telescopes.
