A radio, coils under glass, and a blurry oscilloscope in an illustrated work environment; Anna and Herbert’s portrait badge in the lower right corner.

What do “low” and “high” frequencies actually mean? This article explains the different classifications used by the ITU and ICNIRP, distinguishes between carrier frequency and modulation, and outlines the information that a data sheet should include. You’ll also learn why a frequency designation alone does not prove either penetration depth or medical efficacy.Continue reading