AA95-1000TSO Single Channel Audio Controller
Installation and Operation Manual
Rev 1.01
CONFIDENTIAL AND PROPRIETARY TO COBHAM
Page 3-1
Section 3 Operation
3.1
Introduction
Information in this section consists of functional and operational procedures for the AA95-1000TSO
Single Channel Audio Controller.
3.2
General Information
The AA95-1000TSO provides control for all aircraft audio, allowing selection of transmit and receive
audio, LIVE, KEYED, or VOX intercom, interface for an additional hand held transmit microphone (hand
mic), and pilot isolation/emergency operation.
Sidetone level is adjustable internally, and receive (RX) and intercom (ICS) levels are adjustable on the
front panel. All audio, except the sidetone of the radio in use and the directly connected DIRECT AUDIO
input signal (see Section 3.5.1), is muted during transmit for clarity. ICS operation allows transmit during
any ICS mode by using the PTT switch.
3.3
Controls and Indicators
All transmit functions are controlled with a single rotary selector switch. Receive audio and ICS
operations are controlled with color-coded toggle switches. Receive volume, ICS volume and ICS VOX
squelch are individually adjusted with rotary controls.
3.3.1
Receive Audio Select Switches
The transceiver receive audio select switches (white switch bats) are two position switches. When set to the
up position, the respective transceiver receive audio is selected on. When set to the down position, the
respective transceiver receive audio is selected off.