Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 20  kHz to 300  GHz, roughly the frequencies used in radio communication.[1] Although radio frequency is a rate of oscillation, the term "radio frequency" or its abbreviation "RF" are used as a synonym for radio – i.e., to describe the use of wireless communication, as opposed to communication via electric wires. Examples include:


  1. "Definition of RADIO FREQUENCY". Encyclopædia Britannica. n.d.. 
  2. "ISO/IEC 14443-2:2001 Identification cards — Contactless integrated circuit(s) cards — Proximity cards — Part 2: Radio frequency power and signal interface". 2010-08-19. Retrieved 2011-11-08.