ATEIS IDA8C - Manual (Page 294)

Ateis Studio 294
© 2012 ATEÏS
That's means the speed to adapt the P.M. audio level depending of the ambient noise.
Paging Activity
Light on when the paging is active.
Decrease Zone
Indicates that the AGC gain is decreasing.
Dead Zone
Indicates that the AGC is not changing.
Increase Zone
Indicates that the AGC gain is increasing.
Fast Increase Zone
Indicates that the AGC gain is increasing fast.
Sensing Mic Level
Show the input level of the sensing microphone.
C/Sensing Mic Level
Show the input level of the sensing microphone through the internal calibration transfer function.
Output Level
Show the output level.
Differential Level
Difference between the Output level and C/Sensing Mic level.
Procedure to set the A.N.G
1. Connect the sensing microphone to the S.M. input, and the paging audio source to the P.M.
input. The NSM sensing microphone needs an input sensitivity of 0dB (software). The max cable
length between the NSM and the audio processor is 500 meter with CAT-5 cable.
2. Link the output of the ANG component to an Output component where is connected a
loudspeaker.
3. Click on the Calibrate button, to start the calibration procedure. The system will start to estimate
the acoustic transfer function between loudspeakers and microphone when user clicks the
Calibration button, and it will automatically stop calibrating until the system find a better transfer
function.
4. The calibration red led light up, means the calibration procedure is running. During the procedure,
don't move the physical installation, and don't make punctual noise. The calibration must be done
in normal ambient conditions.
5. Wait until the end of the calibration. The red calibration led light off, and the green calibration led
light up.