RadioMaster Boxer Quick Start Guide

Introduction

Thank you for purchasing the RadioMaster Boxer 2.4g remote control system. This system is versatile and suitable for beginners and professionals alike. Please read this manual carefully before use. Information in this manual may change over time due to ongoing improvements in software and hardware.

The Boxer remote control is compatible with various models including fixed-wing aircraft, gliders, helicopters, cars, boats, robotics, and multi-rotor aircraft. It utilizes the powerful operating system called EdgeTX. For more information, visit the provided links.

Safety Information

Remote-control models often have powerful motors and sharp propellers. Exercise caution during use and maintenance. Always disconnect power and remove propellers before performing any assembly or maintenance.

Do not operate the Boxer remote control system under the following conditions:

• Severe weather or strong windy conditions (rain, hail, snow, storms, electromagnetic environments).
• Limited visibility.
• Areas with people, property, high-voltage power lines, public roads, vehicles, or animals.
• When feeling tired, unwell, or under the influence of drugs or alcohol.
• If the remote control or model appears damaged or not working properly.
• Areas with high 2.4GHz interference or where 2.4GHz radio is prohibited.
• When the radio's battery voltage is too low.
• Areas where local regulations prohibit the use of aviation models.

Manual and Firmware Download

The Boxer comes pre-installed with factory-approved EdgeTX firmware. For the latest software manual, visit the RadioMaster website: https://www.radiomasterrc.com

To download the latest firmware for your Boxer remote control, visit the EdgeTX website: https://www.Edge-tx.org

Important!

ANTENNA: Install the provided antenna in the top of the radio BEFORE installing batteries and turning on the radio. DO NOT operate the radio without the antenna installed and the internal RF module powered on. Doing so will damage the internal RF module and will not be covered under warranty.

FIRMWARE: The Boxer is pre-installed with the most stable firmware at the factory. Only attempt to update the firmware if you are confident in the process, as incorrect updates may render the remote control inoperable.

Remote Control Overview

The remote control features various components including:

• Antenna
• Type-C Data Port
• Headphone Jack
• S1 Dial, S2 Dial
• SF Momentary switch, SE Latching switch
• SA 2 Position, SD 2 Position
• SB 3 Position, SC 3 Position
• Speaker
• Power Button
• Left Gimbal, Right Gimbal
• Lanyard Loop
• 6 Pos Buttons, SYS Button, RTN Button, PAGE> Button, PAGE< Button, TELE Button
• Trim Buttons, MDL Button
• Scroll wheel
• LCD Screen
• TYPE-C Charger Port

Batteries and Charging

The Boxer has a built-in USB-C charging function for 3.7V lithium batteries. It is designed to charge 2x 3.7V Li-ion 18650 or 2x 3.7V Li-Poly batteries (2s 7.4v Lipo battery pack). The nominal battery voltage is 3.7V, with a charged voltage of 4.2V/Cell.

Caution: Do not use LiFE battery packs or 18650 lithium-ion batteries with a nominal voltage of 3.6V (charged voltage 4.10V). Using the incorrect battery type may damage the charger or cause a fire. If using Li-ion cells, ensure they are not protected and are button-top cells.

Always check the battery voltage and condition regularly. Never charge unattended. Always charge in a safe area away from combustible materials. Do not charge if the remote control is wet or damaged. Do not charge with the polarity reversed.

RadioMaster is not responsible for any adverse consequences resulting from the use or misuse of this product.

Model and Protocol Selection (Multi-Protocol Module)

The Boxer is equipped with a 4in1 or CC2500 multi-protocol internal RF module, compatible with various protocols. For the latest list of compatible protocols, visit https://www.multi-module.org/. New protocols are constantly updated and may require firmware upgrades.

• To select a model and protocol: Long press the MDL button to enter model settings, select MULTI on the SETUP page, and choose the desired protocol. The system will automatically activate the corresponding RF module.
• [BND] is used to initiate the binding process.
• [RNG] button allows reducing power to 1/30 for testing remote-control distance.

Model Selection and Protocol Selection (ELRS Version)

Boxer ELRS units feature an internal ELRS module with 25mW-1000mW RF output. For non-extreme conditions, 100mW output at a 500Hz update rate is recommended to prolong battery life and prevent excessive heat.

Bind Instructions:

1. Turn off the transmitter.
2. Cycle power to the receiver 3 times; the receiver LED will flash twice, indicating bind mode.
3. Turn on the transmitter, long press the SYS button, and select the ExpressLRS LUA under the TOOLS menu. Scroll to [Bind] and press enter.
4. The receiver LED should now be solid, indicating a successful bind.

Notes: EdgeTX software is powerful, offering extensive programming and mixing functions. Download the comprehensive software installation guide from https://www.Edge-tx.org or https://www.radiomasterrc.com for detailed instructions.

Specifications

• Size: 235*178*77mm
• Weight: 532.5g
• Frequency: 2.400GHz-2.480GHz
• Internal RF Options: CC2500 multi-protocol / 4-in-1 multi-protocol / ELRS 2.4GHz
• Supported protocols: Module dependent
• Transmitting Power (CC2500 and 4IN1): Max 20dBm
• Transmitting Power (ExpressLRS): Max 30dBm (international) / Max 20dBm (EU LBT)
• Cooling fan: Built in (ELRS version)
• Voltage Range: 6.6-8.4V DC
• Radio Firmware: EdgeTX (Transmitter) / Multi-Module (RF module) / ELRS
• Channels: Max 16 channels (Receiver dependent)
• Battery: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells (batteries not included)
• Display: 128*64 Monochrome LCD display
• Gimbal: High precision 4.0 Hall gimbals as standard (AG01 Optional)
• External module: JR/FrSKY/Crossfire compatible
• Upgrade Method: USB/SD card & EdgeTX Companion PC software

* For the most up-to-date list on supported protocols, please visit https://www.multi-module.org/.

Warranty and Repair

For any hardware issues with your remote control, please retain your proof of purchase and contact the retailer. You can also visit the warranty support page at https://www.radio-masterrc.com/contact.

Firmware Update and EdgeTX

For the latest information and firmware updates from the EdgeTX open-source firmware development team, please visit the EdgeTX website at https://www.Edge-tx.org.

EU Simple Declaration of Conformity

RadioMaster declares that the radio equipment Boxer complies with EU directives Directive 2014/53/EU. The full text of the declaration of conformity is available at www.radiomasterrc.com.

Manufacturer

ShenZhen RadioMaster Co., Ltd
4th Floor, Yangtian Building, No. 18 Yangtian Road, Xin'an Street, Baoan District, Shenzhen, Guangdong.

FCC Information

FCC ID: 2A337-BOXER-ELRS

This equipment has been tested and found to comply with the limits for Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Full text of the declaration of conformity is available at www.radiomasterrc.com.

CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This product contains a radio transmitter with wireless technology that has been tested and found to be compliant with applicable regulations for a radio transmitter in the 2.400GHz to 2.4835GHz frequency range.

Antenna Separation Distance: When operating the RadioMaster transmitter, maintain a separation distance of at least 20 cm between your body (excluding fingers, hands, wrists, ankles, and feet) and the antenna to meet RF exposure safety requirements as determined by FCC regulations.

FCC Warning

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet general RF exposure requirements and can be used in portable exposure conditions without restriction.

Specific Absorption Rate (SAR) information: The BOXER ELRS meets government requirements for exposure to radio waves, based on standards developed by independent scientific organizations. These standards include a substantial safety margin.

FCC RF Exposure Information and Statement: This radio is classified for “General population/uncontrolled Use”. The exposure standard for wireless radio uses Specific Absorption Rate (SAR), with a limit of 1.6W/kg. For body-worn operation, this device was tested with the back of the handset kept 0mm from the body. Use accessories that maintain a 0mm distance for body worn. Accessories should not contain metallic components. The highest reported SAR value for body-worn operation is 1.368 W/kg.