Northern Airborne Technology AA82 - Manual (Page 22)

AA82 InterMUSIC™ Stereo Intercom System
SM09-1 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 4 Page 3-1
Section 3 Operation
3.1 Introduction
ENG-FORM: 806-0112.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Information in this section consists of functional and operational procedures for the AA82 InterMUSIC™
Stereo Intercom System.
3.2 General Information
The AA82 is available in two models, the AA82-001 and AA82-060. Both are designed for passenger
entertainment and communications. The AA82-001 is compatible with AA80 series intercom and allows
four stereo positions. The AA82-060 is compatible with AA83 series intercoms and allows six stereo
positions. Each is linked via the bi-directional ICS Tie Line to the crew audio system.
3.3 Controls and Indicators
The front panel controls shown in Figure 1 permit user adjustment of frequently needed signals, such as
Intercom Audio Level (ICS Volume), Microphone VOX Threshold (VOX Squelch) and Music Level
(Musical Note).
Music Volume
Annunciator
ICS Volume
VOX Squelch
Figure 1: Front Panel Controls
Internal adjustments set default values for Receive Audio Level, Receive Balance, ICS Balance, ICS
Bass, Music Muting and Music Balance. These extensive controls allow some unique features, such as
making the intercom and radio sources appear from distinct listening space positions to aid in recognition.
Music Muting allows the dynamic range of the music muting function to be set to suit individual
preferences and Bass adjustments allow tailoring to the exact characteristics of the headsets chosen.
Music muting occurs in a smooth, fast attack/slow return sequence, for maximum comfort and clarity of
communication in all modes.