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MicroAir Avionics M760 User Manual

MicroAir Avionics M760
36 pages
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Microair Avionics Pty Ltd
Airport Drive
Bundaberg
Queensland 4670
Australia
Tel: +61 7 41 553048
Fax: +61 7 41 553049
e-mail: sales@microair.com.au

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MicroAir Avionics M760 Specifications

General IconGeneral
Weight1.1 kg
Dimensions146 x 57 x 165 mm
Channels760
ModulationAM
Operating Temperature-20°C to +55°C
Frequency Range118.000 to 136.975 MHz
Channel Spacing8.33 kHz / 25 kHz
Sensitivity2.0 µV

Summary

Document Overview

Manual Revision History

Lists the revision history and dates of changes made to the manual.

Product Introduction

Unpacking the M760

Details what is included with the M760 transceiver package.

User and Installation Manual Guide

Instructs users to read the manual before installation or operation.

M760 Nameplate Information

Describes the information found on the M760's nameplate.

Authorized Release Certificate

Explains the purpose of the CASA form 1 release certificate.

M760 Installation Guide

Installation Safety Warnings

Critical warnings against oversizing mounting holes and using longer screws.

M760 Wiring Instructions

DB15 Connector Wiring

Step-by-step guide for soldering wires to the DB15 connector.

Coaxial Cable Termination

Antenna Requirements

Suitable Antenna Types

Mentions acceptable antenna types like whip and dipole.

Antenna Mounting: Metal Airframes

Instructions for mounting antennas on metal-skinned aircraft.

Antenna Mounting: Non-Metal Airframes

Instructions for mounting antennas on non-metal skinned aircraft.

M760 Power Requirements

Backlighting Operation

Explains how the backlighting is activated via supply voltage.

Power Saving Tips

Advice on saving battery power by disabling backlighting.

Microphone Compatibility

Electret Microphone Details

Details Electret microphone characteristics and wiring polarity.

Dynamic Microphone Details

Explains Dynamic microphone requirements, including amplifier use.

Speaker Requirements

Internal VOX Intercom

Headset Adjustment Guide

Sidetone Adjustment

Explains how to adjust sidetone for headset volume.

Microphone Gain Adjustment

Details how to adjust microphone gain for audio quality.

External Intercom Installation

Dual Transceiver Installation

Auxiliary Audio Input

SL30 Data Interface

SL30 RS232 Connection

Explains the RS232 data connection and parameters for SL30 interface.

SL30 Transceiver Function Codes

Explains the 'a' field in commands related to transceiver function (N, M, O).

SL30 Transceiver Status Codes

Describes the 'a' field in commands related to transceiver status (R, M, T, S, F).

PC Interface and Software

Noise Suppression Techniques

Power Filter for Noise Reduction

Recommends installing a power filter to smooth the power supply and reduce noise.

Ferrite Chokes for RFI Reduction

Explains using ferrite chokes on wiring to reduce RFI noise.

M760 Control Overview

Priority Switch Operation

Explains the function of the priority switch to select memory channel 99.

Volume and Squelch Control

Details how to turn on the radio, adjust volume, and set squelch.

Annunciator LED Indicators

Explains the meaning of the LED colours (green, red, flashing red).

Mode Switch Functionality

Describes how the mode switch cycles through operational modes (Active/Standby, Channel, VOX).

Toggle Switch Usage

Explains how the toggle switch exchanges frequencies and activates monitor function.

Frequency Adjust Knob Guide

Details how to adjust frequencies, move the cursor, and scroll through memory channels.

Remote Memory Button Function

Explains the function of the remote memory button, similar to the toggle switch.

PTT Button Operation

Describes the PTT button's function for transmitting and its limitations.

M760 Operational Modes

Active/Standby Mode

Explains how to monitor active and standby frequencies and swap them.

NAV Band Tuning (108-118 MHz)

Details tuning in the NAV band and the transmitter disabling below 118MHz.

Monitor Functionality

Explains how to activate the monitor function to listen to both frequencies.

Channel Mode Operation

Describes storing up to 99 channels with frequency, location, and service.

VOX Mode Explained

Explains the VOX intercom feature and how to set the threshold level.

Program Menu Navigation

Program Menu Options

Lists available items in the program menu: CD, VOX, MONITOR, NEW MEM, EDIT MEM, EXIT.

CD Lockout Feature

Explains the CD Lockout feature to prevent transmission during reception.

VOX Intercom Setup

Details enabling/disabling the internal VOX intercom and its threshold setting.

Monitor Function Setup

Allows adjustment of the monitor function's sample interval rate.

Programming New Memory Channels

Steps to program a new memory channel with frequency, location, and service.

Setting Memory Frequency

How to set the frequency for a new memory channel.

Setting Memory Location Name

How to set the location name for a new memory channel.

Setting Memory Service Type

How to select or enter a service description for a memory channel.

Editing Memory Channels

Allows editing, changing, or clearing existing memory channels.

Exiting Program Menu

Exits the program menu and initiates memory sorting.

M760 Wiring Diagram

M760Q Technical Specifications

Panel Drilling Template

M760 Limited Warranty Information