FIG. 1 is a front, top, left isometric view of a front section of a portable radio showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left elevational view thereof;

FIG. 4 is a right elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines shown on the front face of the article are included for the purpose of illustrating environmental elements only and form no part of the claimed design. The broken lines encompassing the three unshaded circular features at the top in FIGS. 1 and 3-5 and the unshaded portions of the rear in FIGS. 6 and 7 define, but are not included in, the boundaries of the claimed design.