Scientific objectives of MWRH
     1. Magnetography of the corona - determination of the structure and strength of magnetic fields. The effectiveness of magnetic field measurements in the active region corona was demonstrated by RATAN and VLA observations, with limitations in spatial resolutions and the field of view, respectively. MWRH would provide measurements of the field at a number of levels in the chromosphere and corona (estimations of the magnetic field in the chromosphere from the Zeeman effect are made difficult by the structure of spectral lines). Angular resolution varies linearly with frequency. Therefore, even in the case of a discrete set of frequencies, MWRH can provide contours of field levels at the base of the corona by assuming the emission from the 3rd gyrolevel B = 120 f (GHz).  The coincidence of the SSRT and NRH observing intervals brings the number of frequencies to eight. In relatively weak fields, information about the magnitude of the magnetic field along the line of sight is furnished by the degree of polarization. Investigation of oscillatory processes at different frequencies (levels in the solar atmosphere) is also associated with this problem.