[en] Estimates are obtained of actual values of the superconductor rf parameters (surface resistance, penetration depth, and threshold amplitude of rf field) for the case of moderately strong pinning of vortices at frequencies of order 10⁹ Hz and in a magnetic field Bapprox.1 T. Nb--Ti specimens with characteristic (''pinning'') frequency f_p on the order of several GHz are obtained and investigated for the first time. The value f_proughly-equal3.5 x 10⁹ GHz obtained from the static measurements agrees satisfactorily with the measured rf parameters of these specimens