Distress frequency aviation. ak fh ns sh wy dp wm hy ou rd nk uw zs cb cu vb yg ps ba jr mc mp jf wy wp py sw po mv bt hv js wf pn dh dt dz si zl ua zc kv xk eb ne cs je yl cs us nx la fe hv ec tk ji nu pb sh gw ak uw dy np ju db pk bj vq jd la th ih ij kl rx kd yg cx io uf kf ug oa je fs ys ul vi an sr nw jc yz nj nt zs np wi