Northern Airborne Technology AA83-001 rev.4.00 - Manual (Page 9)

SM09-2A Rev. 4.00 AA83-001 InterMUSIC™ Stereo Intercom System Manual
Section 1 Description
1.1 Introduction
This manual contains information on the AA83-001 InterMUSIC™ Stereo Intercom
System serial numbers 2939 and later. All derivative products will be covered by
manual supplements, which can be obtained from NAT as required.
Information in this section consists of purpose of equipment, features and specifications.
1.2 Purpose of Equipment
The AA83-001 is a 4-place stereo voice-activated intercom, providing full intercom
capabilities for pilot, copilot and two passengers (PAX). The AA83-001 has a built-in
tieline with tie/split capability, providing support for additional users in a multi-unit
system.
The AA83-001 also provides transmit capability for pilot and co-pilot to a single COM
radio or audio selector panel. The AA83-001 accepts stereo music inputs from either
portable or fixed entertainment systems to produce high quality stereo headset output.
1.3 Features
1.3.1 Stereo & Intercom Special Features
The stereo music audio is muted during transmit or intercom operation and when radio
receive audio is detected, permitting greater intelligibility of incoming transmissions.
The AA83-001 muting depth adjustment ranges from complete music muting to gentle
background music on command, with a fast attack and slow level return for optimum
user comfort.
Each microphone is individually gated, for the best possible noise performance during
VOX operation. A front panel annunciator allows easy visual setting of the VOX
threshold, and also indicates transmit operation.
1.3.2
Communication Functions
The AA83-001 provides full boom-mic transmit and ICS functions for the pilot and co-
pilot, and provides ICS and radio monitor operation for two additional passengers. Pilot
priority on transmit and pilot isolation/fail-safe (direct connection to the aircraft radio
system) are standard features on all NAT intercom systems. The AA83-001 can
support PTT ICS operation for all users, and can be wired to cyclic/yoke switches for
both TX and ICS functions.
Feb 8, 2006 Page 1-1
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