VOCABULARY
Non-ionizing Radiation: Any type of electromagnetic radiation that does not carry enough energy to ionize atoms or molecules - that is, to completely remove an electron from an atom or molecule. (Wikipedia)
RF waves: Radio Frequency waves. An electromagnetic wave within the range of radio frequencies. (Wikipedia)
Radio Frequency: Radio frequency (RF) is a rate of oscillation in the range of around 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals. RF usually refers to electrical rather than mechanical oscillations; however, mechanical RF systems do exist
Electromagnetic Radiation: Electromagnetic radiation is a fundamental phenomenon of electromagnetism, behaving as waves propagating through space, and also as photon particles traveling through space, carrying radiant energy. (Wikipedia)
Transmitter: a set of equipment used to generate and transmit electromagnetic waves carrying messages or signals, especially those of radio or television. (Wikipedia)
Antenna: An antenna (or aerial) is an electrical device which converts electric power into radio waves, and vice versa. (Wikipedia)