On the propagation of a radio signal through the OH maser source associated with the infrared star NML Cygnus

Using the experimental data available in the literature on the emission spectrum of the OH maser source associated with the infrared star NML Cygnus, the calculation of the «response» of this particular maser to a piecewise holomorphic (=artificial) signal, the frequency of which dif-fers significantly (by several orders of magnitude) from the maser gain frequency, was carried out. The estimation of both the gain coefficient of the piecewise holonomic signal by maximum intensity and the gain coefficient by energy is obtained by this maser. It is shown that both gain factors can be significant, especially for «low-frequency» signals whose carrier frequency is lower than the maser gain frequency. The time dependence of the maser «response signal» is calculated, which does not depend on the parameters of the initial piecewise holomorphic signal. This may be useful in the experimental search for the «response signal» of a given maser.