BETAFPV LiteRadio 3 Radio Transmitter

Introduction

The LiteRadio 3 is a remote control radio transmitter designed primarily for RC models, including multicopters and airplanes. It offers more than expected from an entry-level 8-channel radio.

• 8 channels in total.
• USB Joystick support for most practice simulators.
• Nano module bay for external RF TX module.
• New designed joystick gimbal for longer usage life.
• Supports BETAFPV Configurator for updating, configuring, and tuning.
• Available in ExpressLRS 2.4G protocol version and CC2500 version.
• Built-in 2000mAh battery with USB charging support.

The front of the radio transmitter features:

• Switch C, Switch B
• Switch D, Switch A
• Power Button, LED Ring
• Throttle Joystick, Direction Joystick

The back of the radio transmitter features:

• NANO Bay
• Audio Port, Type-C Port
• SETUP Button, BIND Button
• Connections: NC, CRSF port, GND, VCC

1. Button Functions

There are three buttons on the LiteRadio 3 radio transmitter:

• Power Button: Turns the radio transmitter on/off.
• BIND Button: Enters binding mode after the radio transmitter is powered on.
• SETUP Button: Enters joystick calibration mode after the radio transmitter is powered on.

2. Power On/Off

POWER ON: Long press the power button for 3 seconds until it beeps three times (do re mi), then release. The LED ring will flash red quickly, then remain blue. The transmitter is now on.

POWER OFF: A long press of the power button for 3 seconds until it beeps three times (mi re do) will turn the transmitter off.

3. LED Indicator and Buzzer

The LED ring indicates the working status of the radio transmitter. The buzzer will alarm twice, indicating a low battery that needs to be re-charged.

4. Binding the Receiver

Follow these steps to make the LiteRadio 3 enter binding status:

1. Power on the remote control radio transmitter and wait for its system to load completely. The LED ring should be solid blue.
2. Enter the receiver's binding mode and wait for it to bind with the radio.
3. Press the BIND button on the bottom of the transmitter to enter binding status. The LED ring will be red and flash quickly.
4. The LED ring will change to solid blue 5 seconds later when the transmitter exits binding status. If binding is not successful, repeat the process.

5. Switching Protocol

Note: Switching internal protocol is only available for the CC2500 version radio transmitter. The ExpressLRS version can only switch to the external TX module.

The CC2500 version supports 4 different internal protocols: Frsky D16 FCC, Frsky D16 LBT, Frsky D8, and Futaba S-FHSS. The protocol is indicated by the flashing times of the LED when power on, before the buzzer alarms.

CC2500 Version

ExpressLRS Version

To change protocols and TX module:

1. Power the radio transmitter off.
2. Press and hold the BIND button while powering the radio transmitter back on.
3. The flash color and times of the LED before buzzer alarms will change according to the tables above.

Note: LiteRadio 3 CC2500 version only works with D16 ACCST 1.X Frsky protocol. If you use a Frsky receiver with D16 ACCST 2.X version or ACCESS version, binding will fail.

6. Charging

The LiteRadio 3 radio transmitter has a built-in 2000mAh battery. When the red light flashes twice and the buzzer alarms twice, it indicates that the radio transmitter's battery is low and needs to be re-charged. Charging method:

• Turn off the radio transmitter.
• Plug in the radio transmitter with an adapter via USB cable (5V output adapter is allowed, e.g., a phone charger).
• The LED ring breathes in red while charging, and in green when fully charged.

The continued working time for a full charge is about 15 hours. When fully charged and stored while powered off, the battery will retain approximately 80% charge for about 30 days.

7. HID Joystick Mode Usage

After connecting to a computer, the LiteRadio 3 transmitter can be used as a USB game controller for practicing with model simulators. Steps:

• Turn off the radio transmitter.
• Connect the transmitter to the computer via USB data cable. The LED ring will breathe red or green.
• Install the driver from the PC automatically. A prompt box will appear after successful installation, indicating the computer has recognized the transmitter and it can be used normally as a Human Interface Device (HID).

If the transmitter is not recognized correctly, it may be due to the computer not automatically installing the driver or installing an incorrect driver. Reinstall the driver if necessary.

Note: If the transmitter is powered on when connected to the PC, the USB port will have no signal output, and the Joystick function will not work.

8. Joystick Calibration

Joystick data may offset after a period of use, especially if the joysticks are physically impacted. Recalibrate the joysticks by following these steps:

• With the transmitter powered on, press the SETUP button on the back. You will hear two "Bee Bee" sounds, and the red LED will flash quickly (two flashes each time), indicating the transmitter has entered calibration mode.
• Move both joysticks to the middle position, then press the SETUP button again. You will hear three "Bee Bee Bee" sounds, and the red LED will flash quickly (two flashes each time), indicating that the joystick's center value has been calibrated and the boundary value calibration mode has begun.
• Move the joysticks to their top, bottom, left, and right boundaries (do not press too hard, just touch the boundary). Hold each position for 1-2 seconds. After completing this, press the SETUP button again. You will hear a long beep (about 3 seconds) from the buzzer, and the red LED light will stop flashing, indicating that the joystick calibration is complete.

9. BETAFPV Configurator Basic Usage

The BETAFPV Configurator is a utility designed to simplify updating, configuring, and tuning the radio transmitter.

Download address: https://github.com/BETAFPV/BETAFPV_Configurator/releases

How to enter the radio transmitter configuration page:

• Turn off the radio transmitter.
• Connect the transmitter to the computer via USB data cable. The LED ring will breathe red or green. The transmitter will be recognized as an HID device.
• Open the BETAFPV Configurator program on your computer and switch to the radio transmitter configuration page.
• Click the "Connect Radio Controller" button on the top right of the page.

Note: If the transmitter is powered on when connected to the PC, the USB port will have no signal output, and the BETAFPV Configurator cannot be used.

Configurable options include:

• Switching joystick modes (e.g., Mode 1, Mode 2).
• Configuring the RF module (enabling/disabling internal and external RF modules).
• ExpressLRS system parameter configuration (effective when the RF module is ExpressLRS).
• Setting up mixes and trims for each channel.

How to determine if your radio transmitter supports BETAFPV Configurator:

• Remove the cover of the Micro USB port. There is a nameplate that reads "BETAFPV Configurator Supported".

Note: Older versions of the radio transmitter cannot use the BETAFPV Configurator.

Disclaimer and Safety Guidelines

Disclaimer

This product is a multi-rotor aircraft, equipped with powerful motors and sharp propellers, has fast flight speed, but also has a certain hazard when operating, and needs to be used with caution. This product is not a toy and requires some basic knowledge to control. Please pay special attention to the warnings and cautions before you start using it. BETAFPV reserves the right to update this Disclaimer.

By using this product, you are deemed to have understood, acknowledged, and accepted all the terms and conditions of this document. You undertake to be responsible for your own actions and all consequences arising therefrom. You undertake to use this product only for legitimate purposes and agree to all the terms and conditions of this document and any related policies or guidelines that BETAFPV may establish.

BETAFPV reserves the right to update this disclaimer and the safety guidelines. Visit https://betafpv.com/ for the latest version.

Individual Parts

Remote Controller

1. Make sure remote controller batteries are fully charged before flight.
2. It is necessary to re-bind if the remote controller has been replaced.
3. DO NOT block or cover the built-in antenna of the remote control for strong antenna reception.

Aircraft

1. Make sure aircraft batteries are fully charged before flight.
2. Make sure propellers are in good condition and mounted onto the motors correctly and securely.
3. Make sure the battery is mounted securely.

Battery

1. Only use a battery charger that meets the specifications when charging.
2. Never leave the battery unattended while it is charging.
3. Do not overcharge the battery.
4. Do not short circuit the battery. Make sure the wire connection polarity is correct.
5. Do not charge/discharge the battery outside the recommended temperature range (Charge: 0 to 45°C).
6. Always place the battery in a fire-resistant surface or fire safety container alone when charging/discharging. A cement driveway is a good example of a safe location.
7. Do not allow LiPo cells to overheat at any time. Cells that reach greater than 60°C will usually become damaged and may catch fire.
8. Do not charge/discharge the battery inside a house, garage, vehicle, building, or away from any combustible material.
9. Do not over-discharge the battery. Do not discharge a battery pack to a level below 3.3V per cell.
10. Do not allow the electrolyte to get into eyes or on skin. Wash affected areas immediately if they come into contact with electrolyte. Do not alter or modify connectors or wires of a LiPo battery pack. Do not have contact with a leaky/damaged battery directly.
11. Do not assemble LiPo cells or pre-assembled packs together with other LiPo cells or packs.
12. Inspect batteries after a crash. The battery should be placed in a safe area for observation for at least 30 minutes after the crash.

Caution: The battery may be hot!

Flight Condition Requirements

1. Do not fly in severe weather conditions including strong wind, snow, rain, or fog.
2. Only fly in open areas without tall buildings and large metal structures. Buildings with a large number of concrete irons can affect the signal and interfere with the flight. It is recommended to fly at least 10m away from buildings, poles, obstacles, etc.
3. When flying, keep control within sight and away from obstacles, crowds, and water.
4. Please do not fly in areas with high voltage lines, communication base stations, or transmission towers to avoid interference.
5. Do not take off from moving objects, such as cars and ships.
6. Do not use the aircraft in an environment at risk of fire or explosion.
7. To avoid injury, stay away from rotating propellers or motors.

Regulations

WARNING

To avoid non-compliant behavior, serious injury, and property damage, observe the following rules:

1. DO NOT modify the aircraft or use the aircraft for other illegal purposes.
2. DO NOT operate in the vicinity of manned aircraft, regardless of altitude. If necessary, land immediately.
3. DO NOT fly the aircraft in areas where large events are being held, including but not limited to sporting events and concerts.
4. DO NOT fly the aircraft in areas prohibited by local laws.
5. Remain well clear of and DO NOT interfere with manned aircraft operations. Be aware of and avoid other aircraft and obstacles at all times.

CAUTION

To avoid non-compliant behavior, serious injury, and property damage, observe the following rules:

1. DO NOT fly the aircraft near or inside restricted zones specified by local laws and regulations. Restricted zones include, but are not limited to, airports, borders between two sovereign countries or regions, major cities, and areas where temporary events or activities are being held.
2. DO NOT fly the aircraft above the authorized altitude.
3. Make sure to keep your aircraft within VLOS, and use an observer to assist if needed.
4. DO NOT use the aircraft to carry illegal or dangerous payloads.

NOTICE

1. Make sure you understand the nature of your flight operation (such as for recreation, public use, or commercial use) and have obtained corresponding approval and clearance from the related government agencies before flight. Consult with your local regulators for comprehensive definitions and specific requirements. Note that remote-controlled aircraft may be banned from conducting commercial activities in certain countries and regions.
2. DO NOT fly around sensitive infrastructure or property such as power stations, water treatment facilities, correctional facilities, heavily traveled roadways, government facilities, and military zones.

Export Controls

Comply with Applicable Export Control Laws

You are advised that export, re-export, and transfer of the Products are subjected to Chinese export control law and other applicable export control laws and sanctions (hereafter collectively referred to as "Export Control Laws"). Prior to your use, sale, transfer, rental, or other conduct related to the Products, unless permitted by the Export Control Laws or with the license issued by competent authorities, you shall in particular check and guarantee by appropriate measures that:

1. There will be no infringement of an embargo imposed by the Export Control Laws.
2. The Products will not be provided to the entities, persons, and organizations listed in all applicable sanctioned party lists.
3. It is only for civilian use, and it is forbidden to directly or indirectly use BETAFPV products for or related to the following content (1) any military combat purpose or military combat-related purposes; (2) terrorist activities; (3) other criminal acts. The purchaser shall also require its customers or users to comply with the aforementioned requirements.

Export Compliance, Disclaimer & Indemnity

You acknowledge it is your responsibility to comply with Chinese export control law and any other applicable export control laws. You shall solely be responsible for the legal responsibility if any of your use, sale, transfer, rental or other conduct related to the Products fail to comply with the applicable export control laws. BETAFPV shall, in no circumstances, be responsible for your violation of any applicable export control laws. Furthermore, you shall indemnify, defend, and hold harmless BETAFPV, its affiliates, directors, officers, employees, agents, and representatives, from and against any and all claims, demands, suits, causes of action, expenses (including reasonable attorneys' fee), damages, losses, or liabilities of any nature whatsoever, arising from, or allegedly arising from, or related to, your failure to comply with applicable export control laws.

Compliance Information

FCC STATEMENT

This equipment 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.

Warning: 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.

FCC Radiation Exposure Statement

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

This radio is designed for and classified as "General population/uncontrolled Use". The guidelines are based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin designed to assure the safety of all persons regardless of age or health. The exposure standard for wireless radio employs a unit of measurement known as the Specific Absorption Rate, or SAR, the SAR limit set 1.6W/kg.

Body-worn operation: This device was tested for typical body-worn operations with the front of the transmitter kept 0mm from the body. To maintain compliance with RF exposure requirements, use accessories that maintain a 0mm distance from the body. The use of belt clips, holsters, and similar accessories should not contain metallic components in their assembly. The use of accessories that do not satisfy these requirements may not comply with RF exposure requirements and should be avoided. The highest reported SAR value for worn on the body is 0.689 W/kg.

Shenzhen Baida Moxing Co., Ltd.
Web: betafpv.com
E-mail: support@betafpv.com
Address: B1702A, Block ABCD, Building 3, Phase 1, Tian'an Cloud Park, Gangtou Community, Bantian Street, Longgang District, Shenzhen, Guangdong, China