FIG. 1 is a top, front, left side perspective view of a plate for an antenna mast showing my new design;

FIG. 2 is a front elevational view thereof; the rear elevational view being a mirror image of the front elevational view;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right side elevational view thereof; the right side elevational view being identical to the left side elevational view showing my new design.