Attenuation
Attenuator
(Loss Pad)
Audio
Audio
Frequency
Auto Follow (AF)
Auto Functions
Auto Listen (AL)
Auto Mute (AM)
Auto Reciprocal (AR)
Auto Table (AT)
AWG
fabrication must be very high. Advantages of digital circuitry include 1. Frequency response, and distortion are constant and independent of the circuitry (either it works or doesn’t, the circuitry doesn’t change the frequency response or distortion). 2. Physical aging, wear, and tear have little effect on the quality of the signal. 3. The circuit design and fabrication are very straightforward. The disadvantages of digital are that a substantial investment in system / circuit design must be made, the circuitry tends to produce and radiate interfering signals, more circuitry than analog is required in small units.
The decrease in magnitude of a wave as it passes through a transmitting medium (including air, cables, circuitry). Attenuation is also used to indicate a numerical value of the attenuation through an electrical attenuator, for example: a 10 decibel attenuator (or “pad”).
A device, usually passive, that decreases the amplitude of an electrical signal. For example: to prevent the overload of a sensitive microphone input when the signal is much larger than a microphone signal.
1.A term used to describe sounds within the frequency range of human hearing. Also used to describe devices that are designed to process signals generated from audio (acoustic) energy or to be used to generate audio (acoustic) energy. 2. In television, the sound portion of the program.
Range of frequencies lying within the range of human hearing, often 20 hertz to 20,000 hertz, where hertz is cycles per second.
A key assignment for listen keys only. Auto follow causes a key's listen assignment to always be the same as the talk assignment. Thus, if you change the talk assignment, you do not also have to change the listen assignment. You can manually activate an
Auto functions are special key assignments that work with other key assignments. For further information, see the glossary descriptions of individual auto functions:
A key assignment for listen keys only. This assignment works like auto follow, except that listen automatically activates during talk, Auto listen is sometimes a good assignment for use with
A key assignment for listen keys only. This assignment works like auto follow, except that listen automatically mutes during talk. Auto mute can help prevent feedback or echo when talking to certain destinations. In some cases, you may find it works better to disable talk latching for this type of key, because if you accidentally leave talk latched on you will never be able to hear the destination. To disable latching, in the Keypanels / Ports menu of AZ™EDIT, check the “D” check box for any talk key that has auto mute selected as the listen assignment.
A key assignment for listen keys only. This assignment forces you to continuously listen to whatever is assigned to the talk key. It is used commonly on keypanels which are not equipped with listen keys, to allow listening to
A key assignment for listen keys only, when the corresponding talk key is assigned to an IFB. Auto Table causes a listen key's assignment to always be the same as the Listen Source for whatever IFB is currently assigned to the talk key. (You define the Listen Source in AZ™EDIT during IFB setup.) Auto Table is convenient in a broadcast environment when a director needs 2- way communication with the IFB talent, AND the IFB keys are frequently reassigned during the course of a program to talk to new talent locations. Using AZ™EDIT, several IFBs can be set up in advance, and their Listen Sources can also be defined during setup. Then every time an IFB talk key is reassigned on a keypanel, the Listen Source for each new IFB will automatically become the listen key assignment for that key. For further information about Auto Tables, Listen Sources, and IFBs, search for “IFB” in AZ™EDIT help.
American Wire Gage. For example: the AWG wire size recommended by RTS™ Systems for intercom wiring is 22 gage.
130 H a n d b o o k o f I n t e r c o m S y s t e m s E n g i n e e r i n g
