Radio

File Format
Name	Radio
Ontology	Electronic File Formats Radio

Radio is the use of electromagnetic waves for communication. This is used both for broadcast (one-to-many) and point-to-point (one-to-one) communication of voice, music, code, and other data. Transmission of video by radio waves is known as television. Transmissions can be analog or digital.

Transmission modes

• AM
• FM

Digital data

• Radio Data System (RDS, RBDS)

Emergency broadcasts

• CONELRAD
• Emergency Alert System
• Emergency Broadcast System

Other

• Call signs (call letters of stations)

See also Audio and Music and Video for particular encoding formats for those types of media, and Morse code (which is under Character Encodings).

External links

• VHF-UHF manual
• Late sixties "Internet" brand transistor radio