Radio Wave
Radio waves are waves of electrical energy that travels through space. Note this tag is also used for denpa related content.
For the Japanese term denpa see denpa-kei.
Overview
Radio waves (電波, denpa) are electromagnetic waves with a longer wavelength (lower frequency) than infrared radiation. Radio wave has a frequency of 3 million MHz (= 3,000 GHz = 3 THz) or lower, as defined by the Radio Act.