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Identification, friend or foe ( IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]
Equalization (audio) A stereo graphic equalizer. For the left and right bands of the sound content, there are a series of vertical faders, which can be used to boost or cut specific frequency ranges. This equalizer is set to a smiley face curve, in which the mid-range sound frequencies are cut. Equalizers are also made in compact pedal-style ...
Online research methods ( ORMs) are ways in which researchers can collect data via the internet. They are also referred to as Internet research, [ 1] Internet science [ 2] or iScience, or Web-based methods. [ 3] Many of these online research methods are related to existing research methodologies but re-invent and re-imagine them in the light of ...
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August 1, 2024 at 9:09 AM. By Alex Fraser. VENICE, Italy (Reuters) - Venetians and visitors alike welcomed new rules introduced on Thursday to limit the size of tourist groups in the latest effort ...
A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.