  Integrated power and linewidth of a propagating and a self-localized spin
wave modes excited by spin-polarized current in an obliquely magnetized
magnetic nanocontact are studied experimentally as functions of the angle
$\theta_e$ between the external bias magnetic field and the nanocontact plane.
It is found that the power of the propagating mode monotonically increases with
$\theta_e$, while the power of the self-localized mode has a broad maximum near
$\theta_e = 40$ deg, and exponentially vanishes near the critical angle
$\theta_e = 58$ deg, at which the localized mode disappears. The linewidth of
the propagating mode in the interval of angles $58<\theta_e<90$ deg, where only
this mode is excited, is adequtely described by the existing theory, while in
the angular interval where both modes can exist the observed linewidth of both
modes is substantially broadened due to the telegraph switching between the
modes. Numetical simulations and an approximate analytical model give good
semi-quantitative description of the observed results.
