Northern Airborne Technology AA95-766 - Manual (Page 7)

SM95-766 Rev. 2.00 AA95-766 Single Channel Audio Controller Manual
Section 1 Description
1.1 Introduction
This manual contains information on the AA95-766 Single Channel Audio Controller.
Information in this section consists of purpose of equipment, features and specifications.
1.2 Purpose of Equipment
The AA95-766 is a Dzus mounted audio panel with built in intercom and lighted
faceplate. The unit provides full headset transmit (TX), receive (RX) and intercom (ICS)
functions for the pilot and co-pilot users. Only intercom and receiver audio are provided
for passengers. The front panel controls permit user adjustment of frequently needed
signals.
The users have control of five transceiver positions, six receiver inputs, and one PA
output. The unswitched inputs are direct audio and tape player.
The AA95-766 supports only one lo-z mic input and five hi-z mic inputs per box. All
phone outputs are hi-z. Connection to other stations in the system is made through the
ICS Tie line. The AA95-766 is plug compatible with most AA95 and AMS40 series NAT
audio panels.
The small size and extensive radio and ICS functions make this unit an excellent choice
for multi-station aircraft.
1.3 Features
Transceiver interfacing for the AA95-766 is accomplished through directly switched
microphones. To ensure maximum radio compatibility, it has a ground-referenced
keyline that incorporates no diodes or other steering components.
Independent control is provided for each audio channel within the controller, allowing
sidetone, ICS audio, and RX audio to be independently set.
The ICS tie line is fully compatible with other NAT systems including the AA80, AA82,
AMS4X and AA9X series units.
Boom mic support is provided for the pilot and co-pilot, with both ICS and TX functions
via cyclic or yoke switching. The AA95-766 has a built-in dynamic microphone amplifier
for an M87-type mic. The Live (Hot Mic) and VOX ICS functionality allow immediate
transmission via these modes without further control panel switching, and immediate
return to ICS operation on completion. The ICS function is achieved using dynamic
noise reduction and active filtering. This provides the clearest possible ICS audio under
Dec 06, 2004 Page 1-1
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