  Effects of the static electric field on the splitting and annihilation widths
of the levels of antiprotonic hydrogen with a large principal quantum number
(n=30) are studied. Non-trivial aspects of the consideration is related with
instability of (p\bar{p})^*-atom in ns and np-states due to coupling of these
states with the annihilation channels. Properties of the mixed nl-levels are
investigated depending on the value of external static electric field. Specific
resonance-like dependence of effective annihilation widths on the strength of
the field is revealed.
