Radiomaster TX15 Radio Controller User Manual

Introduction

Thank you for choosing the RadioMaster TX15, a versatile remote control system featuring dual-band capabilities with 2.4GHz technology. Whether you're a beginner or a seasoned professional, the TX15 is designed to meet your needs, offering precision, flexibility, and reliability.

Please read this guide carefully before operating your new remote to ensure safe and optimal use. As we continually enhance our software and hardware, updated versions of this manual may be released. For the latest information and resources, please visit our website.

The TX15 is pre-installed with factory approved EdgeTX firmware. To download the latest software manual, please visit the RadioMaster website: www.radiomasterrc.com

Further firmware information can be found at:

• EdgeTX: www.edgetx.org
• ExpressLRS: www.expresslrs.org

Safety Information

Many remote-control models are equipped with powerful motors and sharp propellers. When using or maintaining models, proceed with caution. When performing assembly or maintenance, make sure to disconnect the power to the model and remove the propellers.

Do not operate the TX15 remote control system under the following conditions:

• In severe weather or strong windy conditions, such as rain, hail, snow, storms or electromagnetic environments.
• In any situation where visibility is limited.
• In areas where people, property, high-voltage power lines, public roads, vehicles or animals may be present.
• If you feel tired or unwell, or under the influence of drugs or alcohol.
• If the remote control or model seems to be damaged or not working properly.
• In areas with high 2.4GHz interference or where 2.4GHz radio is prohibited.
• When the radio's battery voltage is too low to be used.
• In areas where local regulations prohibit the use of models.

Disclaimer: For recreation use only. Illegal modification of drones/planes is prohibited. Please also pay attention to the relevant laws and regulations on the use of drones/planes in your country/area to ensure legal use.

Setup

Package Contents

The Radiomaster TX15 package typically includes the radio controller, a carrying case, USB-C cable, battery holder, springs for gimbal adjustment, and a quick start guide. Please verify all components are present upon unboxing.

Antenna Installation

IMPORTANT: 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.

Battery Installation & Charging

The TX15 has a built-in USB-C charging function for 3.7V lithium batteries. The charging circuit 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, and the charged voltage is 4.2V/Cell.

DO NOT use LiFE battery packs or 18650 lithium-ion batteries with a nominal voltage of 3.6v with a fully charged voltage of 4.10V. Charging the incorrect type of battery may damage the charger or cause a fire.

If using Li-ion, ensure the cells are not protected and are button-top cells.

Please check the voltage and condition of the battery regularly and never charge unattended. Always charge in a safe area away from combustible materials. Refrain from charging if the remote control gets wet or damaged in any way. DO NOT charge with the polarity reversed.

Physical Overview and Controls

Familiarize yourself with the layout of the TX15 radio controller using the diagram below:

Key controls include:

• S1/S2 Dials: Rotary encoders for various functions.
• SA/SB/SC/SD Switches: 3-position switches for assigning functions.
• Power Button: For turning the unit on/off.
• Gimbals: Left and Right gimbals for primary control.
• Trims (T1-T4): Digital trims for fine-tuning control surfaces.
• SYS Button: System menu access.
• RTN Button: Return to previous menu.
• PAGE>/PAGE< Buttons: Navigate through menu pages.
• TELE Button: Telemetry data access.
• MDL Button: Model selection menu.
• Scroll Wheel: For menu navigation and selection.
• 3.5-inch IPS Touchscreen: Color display for settings and telemetry.
• USB-C Port: For charging and data connection.
• Headphone Jack: For audio output.
• DSC Trainer Port: For trainer functionality.
• External JR Bay: For external RF modules.

Gimbal Adjustments

The TX15 gimbals can be adjusted for tension and travel. Refer to the diagram for adjustment points:

• Throttle Stick Tension: Turn CW to increase, CCW to decrease.
• Vertical Tension (Up-Down): Turn CW to increase, CCW to decrease.
• Horizontal Tension (Left-Right): Turn CW to increase, CCW to decrease.
• Up Stick Travel (38-54° degrees): Turn CW to decrease, CCW to increase.
• Down Stick Travel (38-54° degrees): Turn CW to decrease, CCW to increase.
• L-R Mode-1, 2 (Self-Centering): Turn CW to disable self-centering, CCW to enable.

Binding Instructions (ExpressLRS)

The TX15 is equipped with a built-in dual-band, dual-frequency ExpressLRS RF module. To bind your receiver:

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, press the SYS button and choose ExpressLRS LUA under the TOOLS menu. Scroll to [Bind] and press enter.
4. The LED on the receiver should now be solid, indicating a successful bind.

Operating the TX15

Model & Protocol Selection

The TX15 supports 2.4GHz receivers. For optimal performance, select the appropriate packet rate.

Packet Rate Selection

To select the appropriate Packet Rate on your TX15 remote control, follow these options based on the receiver type:

• 50Hz-500Hz 2.4G: For binding with any ExpressLRS 2.4GHz receiver.

Access these settings via the TOOLS menu on the TX15 touchscreen.

Maintenance

Regularly inspect the physical condition of your TX15, including gimbals, switches, and the casing, for any signs of wear or damage. Keep the device clean and free from dust and debris.

Periodically check the battery voltage and condition. Store the TX15 in a cool, dry place away from direct sunlight and extreme temperatures.

Troubleshooting

If you encounter issues with your TX15, first ensure that the battery is adequately charged and all connections are secure. Verify that the antenna is properly installed.

For binding issues, ensure the receiver is in bind mode and the correct protocol and packet rate are selected on the TX15.

Incorrect firmware updates may cause the remote control to become inoperable. Only attempt firmware updates if you are confident in the process.

If problems persist, refer to the official RadioMaster website for support resources or contact your retailer.

Specifications

User Tips

• Gimbal Springs: The TX15 may come with stiff gimbal springs installed. Softer springs are often included in the package and can be easily swapped for a more comfortable feel.
• Battery Type: While the manual specifies 18650 batteries, some users have found that 21700 batteries can be used if the battery holder is removed, potentially offering longer run times. Always ensure proper polarity and safety when experimenting with battery types.
• Internal Memory: Be aware that while some descriptions might mention 4GB internal memory, the actual capacity might be 512MB. Verify the actual memory on your device if this is a critical feature for your use case.
• FCC Version: The TX15 is available in FCC versions, which typically allow for higher power output (e.g., 1000mW) compared to LBT versions. Confirm your device's version if specific power output is required for your region.
• Packaging: Some users have reported that the packaging might be minimal (e.g., only bubble wrap). Inspect the product carefully upon arrival for any transit damage.

Warranty & Support

If you experience any issues with your TX15 hardware, please retain your proof of purchase for warranty purposes. To initiate a warranty claim or seek repair assistance, follow these steps:

1. Contact Your Retailer: Contact the retailer where you purchased your TX15 for warranty support.
2. Visit Our Warranty Support Page: For additional assistance or to contact our support team, visit RadioMaster Warranty Support: www.radiomasterrc.com/contact

A detailed user manual in PDF format is also available: View User Manual (PDF)

Compliance Information

FCC Compliance Statement

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.
2. This device must accept any interference received, including interference that may cause undesired operation.

Warning: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this 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. If not installed and used per the instructions, it 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 the receiver.
• Connect the equipment to an outlet on a circuit that is different from the one to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for assistance.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. It should be installed and operated with a minimum distance of 20 cm between the radiator and your body.

Antenna Separation Distance

When operating your RadioMaster transmitter, please be sure to 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.

EU Simple Declaration of Conformity

RadioMaster declares the radio equipment TX15 is in compliance with EU directives Directive 2014/53/EU.

Manufacturer: ShenZhen RadioMaster Co., Ltd, 3th Floor, Yangtian Building, No. 18 Yangtian Road, Xin'an Street, Baoan District, Shenzhen, Guangdong