Northern Airborne Technology 211 - Manual (Page 19)

Model 211 Voice Activated Switch
SM211 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 2 Page 3-1
ENG-FORM: 806-0111.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Section 3 Operation
3.1 Introduction
Information in this section consists of functional and operational procedures for the
Model 211 Voice
Activated Switch .
3.2 General Information
The Model 211 Voice Activated Switch is designed to reduce noise from a HOT microphone when the
operator is not talking. It activates on a preset voice level from an amplified dynamic microphone.
The Model 211 Voice Activated Switch has no operator accessible controls. During installation, it may be
determined that internal level adjustments are required. Qualified personnel only shall complete internal
level adjustments.
3.3 Remote Squelch Level
A remote potentiometer may be fitted to adjust the squelch level.
Section 3 ends