The attention signal to be used by AM, FM, and TV broadcast stations to actuate muted receivers for inter- station receipt of emergency cuing announcements and broadcasts involving a range of emergency contingencies posing a threat to the safety of life or property. [ 47CFR ]
ATTENTION SIGNAL
Meaning of ATTENTION SIGNAL in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012