A portable aviation radio is essential equipment for any pilot. It's an easy way to get a clearance before starting the engine, and a valuable way to learn communications without burning any avgas. While these ground-based uses are nice, though, the real value of a radio is found in the cockpit. If the worst should happen and your panel goes dark, a good radio in your hand can save the day.
But how good is a portable radio in an emergency? Do they really work beyond a few miles? We went flying to answer this question, and the results were pleasantly surprising.