  Well-characterized binary systems will provide valuable opportunities to
study the conditions that are necessary for the onset of both auroral and
non-auroral magnetospheric radio emission in the ultracool dwarf regime. We
present new detections of non-auroral "quiescent" radio emission at 4-8 GHz of
the three ultracool dwarf binary systems GJ 564 BC, LP 415-20, and 2MASS
J21402931+1625183. We also tentatively detect a highly circularly polarized
pulse at 4-6 GHz that may indicate aurorae from GJ 564 BC. Finally, we show
that the brightest binary ultracool dwarf systems may be more luminous than
predictions from single-object systems.
