Portable radio housing

<figref idrefs="DRAWINGS">FIG. 1</figref> is a front perspective view of an ornamental design for a portable radio housing;

<figref idrefs="DRAWINGS">FIG. 2</figref> is a rear perspective view thereof;

<figref idrefs="DRAWINGS">FIG. 3</figref> is a front view thereof;

<figref idrefs="DRAWINGS">FIG. 4</figref> is a rear view thereof;

<figref idrefs="DRAWINGS">FIG. 5</figref> is a first side view thereof;

<figref idrefs="DRAWINGS">FIG. 6</figref> is a second side view thereof;

<figref idrefs="DRAWINGS">FIG. 7</figref> is a top view thereof; and,

<figref idrefs="DRAWINGS">FIG. 8</figref> is a bottom view thereof.

The broken lines shown in <figref idrefs="DRAWINGS">FIGS. 1-8</figref> that are immediately adjacent to the shaded areas, and define unshaded regions, represent the bounds of the claimed design, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.