AIRTRONICS MX-3X User Manual

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AIRTRONICS MX-3X Specifications

General

Type	Pistol Grip
Channels	3
Modulation	FHSS-3
Frequency	2.4GHz
Telemetry	No
Model Memory	10
Battery Type	AA

Summary

Introduction to Airtronics MX-3X

Safety Guidelines

High-output radio control system safety guidelines and precautions.

FCC Compliance Statement

Explains FCC rules and compliance for radio frequency devices.

Usage Precautions

2.4GHz Frequency Band Precautions

Precautions for using the 2.4GHz band to avoid interference.

Transmitter Precautions

Guidelines for safe and correct operation of the transmitter.

Receiver Precautions

Precautions for mounting and handling the receiver.

Features and Specifications

System Features

Lists the main features of the MX-3X 2.4GHz radio control system.

System Specifications

Provides technical specifications for the transmitter and receiver.

Servo Recommendations

Recommends Airtronics servos for optimal performance.

Features Familiarization

Features Diagrams

Diagrams illustrating the transmitter's controls and components.

Back View and Receiver Diagram

Diagrams showing the back of the transmitter and receiver connections.

Features Descriptions

Transmitter Controls and Interface

Explains operation of controls, LCD, and indicators.

Transmitter Components and Adjustments

Details parts like antenna, grip, and trigger adjustments.

TX and RX Options and Connections

Throttle Trigger Adjustments

How to adjust the neutral position of the throttle trigger for preference.

Transmitter Battery Options

Explains available battery types for the transmitter.

Alkaline Battery Installation

Step-by-step guide for installing alkaline batteries.

TX and RX Options and Connections (Cont.)

Optional Ni-MH Battery and Charger Usage

Instructions for installing and charging the optional Ni-MH battery.

Battery Charging Warnings

Important warnings regarding battery charging procedures.

TX and RX Options and Connections (Cont.)

Li-Po/Li-Fe Battery Warnings

Crucial warnings when using Li-Po or Li-Fe batteries.

Receiver Connections and Mounting

Guide to connecting and mounting the receiver in the model.

Receiver Voltage Warning

Warning about receiver voltage limits and BEC circuitry.

LCD and Programming Keys

Multi-Function LCD Overview

Explains the layout and indicators of the transmitter's LCD screen.

Programming Key Functions

Details the specific functions of each programming key.

LCD and Programming Keys (Cont.)

Programming Key Shortcuts

Describes shortcuts for accessing specific display information.

Programming Menu Overview

Menu Flow Chart

Visual guide to the transmitter's programming menu structure.

Setup Menu Table

Lists setup menu items and their descriptions.

Programming Menu Table

Lists programming menu items and their descriptions.

Programming Menu (Cont.)

Transmitter and Receiver Binding

Step-by-step guide to pairing the transmitter and receiver.

Programming Menu (Cont.)

Steering Dual Rate (D/R)

Adjusts steering sensitivity and travel range.

Centering the Steering Servo and Wheels

How to center the steering servo and align model wheels.

Programming Menu (Cont.)

Adjusting Steering Dual Rate

Details how to adjust the steering dual rate percentage.

End Point Adjustment (EPA)

Adjusts servo travel limits for each direction.

Adjusting Steering End Point Adjustment

How to set endpoint limits for steering.

Programming Menu (Cont.)

Adjusting Throttle End Point Adjustment

Adjusts servo travel limits for throttle (forward/brake).

Programming Menu (Cont.)

Adjusting Auxiliary Channel 3 End Point Adjustment

How to set endpoint limits for Auxiliary Channel 3.

Assigning End Point Adjustment to TRM Switch

How to assign EPA adjustment to the TRM switch.

Programming Menu (Cont.)

Exponential (EXP)

Varies servo travel relative to control input for response adjustment.

Adjusting Steering Exponential

How to adjust steering exponential for desired response.

Adjusting Throttle High Exponential

Adjusts throttle response for forward movement.

Programming Menu (Cont.)

Servo Speed (SPEED)

Slows down servo transit speed for smoother control.

Adjusting Steering Speed (Forward/Return)

Adjusts steering servo speed for forward and return directions.

Programming Menu (Cont.)

Adjusting Throttle Speed (Forward/Return)

Adjusts throttle servo speed for forward and return directions.

Programming Menu (Cont.)

Auxiliary Programming (AUX)

Overview of functions and options for Auxiliary Channel 3.

Auxiliary Channel 3 ON-OFF

How to use Auxiliary Channel 3 as a simple ON/OFF switch.

Programming Menu (Cont.)

Point Auxiliary (P AUX)

Programs Auxiliary Channel 3 to move to specific points.

Choosing the Number of Points for Point Auxiliary

Selects the number of programmable points (2-6).

Programming Menu (Cont.)

Choosing Point Values for Point Auxiliary

Sets the servo position values for each programmed point.

Activating and Using Point Auxiliary

How to activate and cycle through programmed points.

Assigning Point Auxiliary to TRM Switch

Assigns Point Auxiliary control to the TRM switch.

Programming Menu (Cont.)

Step Auxiliary (S AUX)

Programs Auxiliary Channel 3 to move in defined step amounts.

Choosing the Step Value for Step Auxiliary

Sets the step value for servo movement in Step Auxiliary.

Activating and Using Step Auxiliary

How to activate and control servo movement in steps.

Programming Menu (Cont.)

Assigning Step Auxiliary to TRM Switch

Assigns Step Auxiliary control to the TRM switch.

Four Wheel Steering Mixing (4WS)

Mixes front and rear steering servos for various steering modes.

Programming Menu (Cont.)

Choosing Steering Channel Option for 4WS

Selects which channel controls steering in 4WS mode.

Activating and Using Four Wheel Steering Mixing

How to activate and select 4WS modes (Front, Rear, Parallel, Tandem).

Programming Menu (Cont.)

Motor on Axle Mixing (MOA)

Controls front/rear motors independently for crawling features.

Choosing Throttle Channel Option for MOA

Selects which channel controls throttle in MOA mode.

Programming Menu (Cont.)

Activating and Using Motor on Axle Mixing

How to activate and use MOA modes (Hold, Burn, Dig).

Programming Menu (Cont.)

Brake Mixing (BRK)

Uses Auxiliary Channel 3 as a second brake, includes Brake Hold.

Choosing Throttle Channel Option for Brake Mixing

Selects throttle channel for brake mixing function.

Programming Menu (Cont.)

Auxiliary Mixing (A MIX)

Mixes Steering or Throttle channels with Auxiliary Channel 3.

Choosing Master/Steering/Throttle Channels for A MIX

Selects master and slave channels for auxiliary mixing.

Programming Menu (Cont.)

Using the Auxiliary Mixing Function

How to activate and switch between different mixes.

Fail Safe (F/S)

Sets servo positions if signal is lost.

Programming Menu (Cont.)

Setting the Fail Safe

Configures Fail Safe for steering, throttle, and auxiliary channels.

Receiver Battery Voltage Fail Safe

Triggers Fail Safe based on receiver battery voltage.

Programming Menu (Cont.)

Servo Sub-Trim (SUB-T)

Corrects neutral trim for centering servo horns.

Adjusting Steering Sub-Trim

How to set sub-trim for the steering servo.

Programming Menu (Cont.)

Adjusting Throttle Sub-Trim

How to set sub-trim for the throttle servo.

Adjusting Auxiliary Channel 3 Sub-Trim

How to set sub-trim for Auxiliary Channel 3.

Programming Menu (Cont.)

Servo Reversing (REV)

Electronically reverses servo travel direction.

Changing Steering Servo Reversing

How to reverse the steering servo direction.

Changing Throttle Servo Reversing

How to reverse the throttle servo direction.

Programming Menu (Cont.)

Changing Auxiliary Channel 3 Servo Reversing

How to reverse the auxiliary channel 3 servo direction.

Model Select

Selects and loads saved model programming data.

Setup Menu

Modulation Type (MOD)

Selects the transmitter modulation type for receiver compatibility.

Setup Menu (Cont.)

Binding (BIND)

Pairs the transmitter and receiver to prevent interference.

Setup Menu (Cont.)

Trim Switch Assign (TRM)

Assigns functions to the TRM switch for easy access.

Setup Menu (Cont.)

Changing TRM Switch Step Resolution

Adjusts how far the servo travels with TRM switch presses.

Trim Step Resolution (STEP)

Adjusts servo travel for trim switches.

Setup Menu (Cont.)

Model Naming (NAME)

Names saved models for easier identification.

Setup Menu (Cont.)

Naming Your Model (Cont.)

Continues the process of naming models.

Erasing a Character in Model Naming

How to erase characters during model naming.

Using Underscores and Period in Model Naming

How to insert underscores and periods into model names.

Setup Menu (Cont.)

Model Clear (MCLR)

Resets a selected model's programming data to defaults.

Audible Key Tone (BEEP)

Turns audible key tones ON or OFF.

Setup Menu (Cont.)

Inactivity Alarm (ALRM)

Warns if the transmitter is left ON without input for 10 minutes.

Battery Cell Count (BATT)

Sets the transmitter's battery type for accurate voltage alarms.

Setup Menu (Cont.)

Choosing the Battery Cell Count

Selects the correct battery cell count for voltage alarms.

Low Voltage Alarm Details

Explains voltage thresholds and audible warnings for low battery.

Troubleshooting Guide

Transmitter Power, Binding, and Response Issues

Solves problems with transmitter power, binding, and servo response.

Range, Display, and Unexpected Movement Issues

Addresses range, display problems, and uncontrolled servo movement.