Station identification (sometimes called a sounder or stinger) is the practice of any type of
radio or
television station or network
identifying itself, typically with a
call sign or brand name. Over-the-air transmitters may be required to identify themselves regularly by a governmental licensing authority; this requirement can apply to any form of transmission over the
radio spectrum by any means, not merely mass-media audio or video
broadcasters. Non-OTA broadcasters such as
cable or
pay TV networks may still practice regular identification as a form of
branding.
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