It has long been held by spectrum-regulating authorities and the radio communications industry that the radio frequency portion of the electromagnetic spectrum is a finite resource in danger of running out.

This is not strictly true. In fact, the spectrum does not exist as a physical entity but is simply a method of classifying electromagnetic waves by their wavelength and frequency.  It is not threatened with exhaustion.

Radio waves are produced naturally and by man-made equipment such as radio transmitters and, depending upon their parameters, these waves will... Continue Reading