Outline of radio
The following outline is provided as an overview of and topical guide to radio:
Radio - transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing some property of the radiated waves, such as amplitude, frequency, phase, or pulse width. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be detected and transformed into sound or other signals that carry information.
Descriptions of radio
Applications
- Amateur radio
- Direction finding
- Radio broadcasting
- * AM broadcasting
- * FM broadcasting
- * Shortwave broadcasting
- Radar
- Radio astronomy
- Radio navigation
- Radiotelephone
- Satellite radio
- Software-defined radio
- Two-way radio
- * Mission critical communication TETRA and P25
- Wireless power transfer
Radio broadcasting
- Disc jockey
- Radio documentary
- Radio format
- Radio personality
- Radio programming
- Campus radio
- Commercial radio
- Community radio
- International broadcasting
- Internet radio
- Music radio
- Pirate radio
- Public radio
History of radio
- Invention of radio
- Wireless telegraphy
- Spark-gap transmitter
- Alexanderson alternator
- Antique radio
- Coherer
- Continuous wave
- Crystal radio
- Vacuum tube
- Amplitude modulation
- Old-time radio
- Radioteletype
- Table of years in radio
- Timeline of radio
Radio science
- Antenna (radio)
- Carrier current
- Electromagnetic radiation
- Radio frequency
- Radio spectrum
- Radio propagation
- Receiver (radio)
- Transmitter
- Types of radio emissions
Radio technology
- Antenna matching unit
- Batteryless radio
- Digital radio
- DTV radio
- Preselector
- Radio frequency power amplifier
- Radio software
- Shortwave radio receiver
- Superheterodyne receiver
- Tuner (radio)
- TV radio
Radio stations
- Radio communication station
- lists of radio stations
- * Lists of radio stations#Lists of [radio stations by continent|By continent]
- * By country
- * By language
Persons influential in the field of radio
- Michael Faraday
- James Clerk Maxwell
- Heinrich Rudolf Hertz
- Oliver Lodge
- Guglielmo Marconi
- Reginald Fessenden
- Edwin Howard Armstrong