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Nat AA34-200 User Manual

Nat AA34-200
28 pages
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Northern Airborne Technology Ltd.
1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
Issued on the authority of Northern Airborne Technology Ltd.
Copyright 2003
Installation and Operation Manual
AA34 Series
Universal Radio Interface
SM36
ISSUE 4.02
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Nat AA34-200 Specifications

General IconGeneral
BrandNat
ModelAA34-200
CategoryRecording Equipment
LanguageEnglish

Summary

Section 1 Description

1.1 Introduction

Overview of the manual's content for product description, design features, and specifications.

1.2 Product Description

Details the AA34 Universal Radio Interface's function in aircraft audio systems.

1.3 Design Features

Highlights key features like microphone excitation, relay keying, and sidetone generation.

1.4 Specifications

Covers electrical, physical, and environmental details of the AA34 Universal Radio Interface.

1.4.1 Electrical Specifications

Details input power, input/output signals, frequency response, and distortion.

1.4.2 Physical Specifications

Provides dimensions, weight, mounting, material, and connector types for the unit.

1.4.3 Environmental Specifications

Lists operating and survival temperature, altitude, humidity, shock, and vibration ratings.

1.4.4 Product Approval

States FAA TSO authorization and applicable standards for product approval.

1.5 Unit Nomenclature

Defines the different AA34 models and their specific functionalities.

Section 2 Installation

2.1 Introduction

Overview of unpacking, inspection, installation, and post-installation procedures.

2.2 Unpacking and Inspection

Instructions for unpacking, inspecting the unit for shipping damage, and checking contents.

2.2.1 Warranty

Details the product warranty terms, conditions, and voidance clauses.

2.3 Continued Airworthiness

States that maintenance is 'on condition' only, with no periodic maintenance required.

2.4 Installation Procedures

Guides on the correct methods and precautions for installing the AA34 Universal Radio Interface.

2.4.1 Warnings

Crucial safety warnings to prevent damage or improper operation during installation.

2.4.2 Cautions

Important advisories on wiring, shielding, and component placement for optimal performance.

2.4.3 Cabling and Wiring

Specifies wire selection, routing, segregation, and connection requirements.

2.4.4 Post-Installation Checks

Procedures for verifying correct installation and operation before service release.

2.4.4.1 Voltage/Resistance Checks

Tests for correct power input and ground continuity before connecting the unit.

2.4.4.2 Power On Checks

Steps to confirm proper function of the AA34 and connected radios after power-up.

2.5 Adjustments and Connections

Details how to configure and connect the AA34 for optimal performance.

2.5.1 External Adjustments

Describes access and function of external potentiometers for level adjustments.

2.5.1.1 Rear Adjustments

Explains the RX LEVEL, MIC LEVEL, and S/T LEVEL potentiometers on the rear.

2.5.1.2 Left side Adjustments

Details switches S1, S2 for mic bias/blocking and C1/C2 for mic path selection.

2.5.2 Internal Adjustments (AA34-200 only)

Configuration options for the AA34-200 model, including jumpers and switches.

2.5.2.1 30/200 mV Mic Output Level Adjustment

How to set the mic output level using a jumper for 30mV or 200mV.

2.5.2.2 RX Gain Adjustment

Setting the receiver gain to high or low using a jumper.

2.5.2.3 RX Output Impedance Adjustment

Configuring the RX output impedance to 600Ω or 150Ω via a jumper.

2.5.3 Internal Adjustments (AA34-300 and AA34-301 only)

Configuration options for AA34-300/301 models, focusing on audio output impedance.

2.5.3.1 8/600 Ω Audio Output Impedance Adjustment

Setting audio output impedance for 8Ω or 600Ω loads using jumper JP2.

2.5.3.2 8/150 Ω Mic Output Impedance Adjustment

Setting mic output impedance for 8Ω or 150Ω loads using jumper JP1.

2.6 Accessories Required But Not Supplied

Lists the installation kit (AA34-IKC) and its components needed for installation.

2.7 Installation Drawings

References documents containing interconnect and mechanical installation drawings.

Section 3 Operation

3.1 Introduction

Overview of functional and operational procedures for the AA34 Universal Radio Interface.

3.2 General Information

Explains the interface capabilities and notes that internal adjustments are for qualified personnel.

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