Diagnostics of magnetic field strength in gyrosynchrotron radiation regions for the case of transverse propagation

A set of diagnostic formulas is, for the first time, proposed to deal with the magnetic field strength B in gyrosynchroton radiation regions for the t ransverse propagation case. The diagnostic formulas of B are applied to ana lyze a solar limb event. The differences of diagnostic results of B are com pared for the different propagation cases and it is found that the differen ces are rather large. So in the analysis of limb burst we should use the di agnostic formulas for the transverse propagation.