Numerical method examines the impact of the static output characteristics of two types of frequency dithering LG: combination dithering consisting of harmonic oscillations and additional frequency noisy and periodic stand without a special frequency noisy type. The paper considers the technique of numerical analysis of dynamic synchronization zones, designed to meet the need for a series of computational experiments for static output characteristics with an accuracy of not worse than 0.005º/hour. A comparison of the results with those of the previously conducted independent research based on the approximate analytical, experimental, and numerical methods has shown qualitative and quantitative differences in the results of some researches and a good agreement with the results of others. The paper provides more accurate assessments of the impact of types and frequency dither parameters on the output stand stationary characteristic of LG with frequency noisiness, which by the nature and to extent is close to the frequency noisiness in devices used in practice.