RadioMaster TX15 Max ExpressLRS Red Transmitter - Advanced FPV Radio Controller

Introduction

The RadioMaster TX15 Max ExpressLRS Red is a top-tier, portable radio controller engineered for discerning FPV and RC enthusiasts who demand uncompromising performance. Powered by the lightning-fast STM32 H7 processor, this transmitter ensures ultra-smooth EdgeTX operation, rapid model switching, and responsive script execution. Its integrated dual-band ExpressLRS system (2.4 GHz and 868/915 MHz) provides reliable, low-latency control, even in challenging radio frequency environments. Experience the best in portable control technology.

Key Advantages

• Ultra-Fast Performance: Driven by the STM32 H7 chipset for the most responsive control experience.
• Vivid Touchscreen Display: Features a bright 3.5-inch IPS touchscreen (480x320 resolution) for clear, detailed visuals.
• Precision AG02 Gimbals: High-quality CNC aluminum AG02 gimbals offer enhanced smoothness and adjustability.
• Integrated ExpressLRS: Built-in 2.4 GHz / 868/915 MHz ExpressLRS for robust long-range connectivity.
• Advanced Cooling System: Efficient, quiet cooling with high-performance fans and an aluminum heatsink keeps the radio cool under load.
• Ergonomic Design: Includes a foldable antenna, customizable RGB gimbal rings, and a refined gold finish for a premium feel.
• Extended Functionality: Onboard microphone (future-ready), gyroscope for motion control, and ample storage (4GB internal + MicroSD support).
• Customizable Controls: Swappable shoulder switches and adjustable gimbal tension allow for personalized flight control setups.

Technical Specifications

• Product: TX15 Max Radio Controller
• Dimensions: 178 x 168 x 81 mm
• Weight: 672 g (without battery)
• Frequency: 2.400 GHz OR Sub-G 868/915 MHz
• Internal RF: ELRS 2.4 GHz / Sub-G 68/915 MHz
• Supported Protocols: Express-LRS
• Cooling Fan: Yes
• Transmitter Module: Built-in ELRS
• Internal Flash Memory: 4 GB
• Built-in Microphone: Yes (for future expansion)
• Built-in Gyroscope: Yes (ICM-42607-C)
• MicroSD Card Support: Up to 32 GB / FAT32 (Note: Inserting MicroSD disables internal flash)
• Antenna Gain: 2 dB (adjustable transmit power)
• Current Draw: 875 mA @ max power output
• Voltage Range: 6.6-8.4 V DC
• Radio Software: EdgeTX
• Module Software: ExpressLRS
• Channels: Max 16 (receiver dependent)
• Display: 3.5-inch IPS Touchscreen (480 x 320 resolution)
• Battery Compatibility: 2S 7.4V LiPo, two 3.7V 18650 Li-Ion, or 21700 5000 mAh (batteries not included)
• Connectivity: USB-C
• Gimbals: AG02 Hall Sensor CNC Gimbals
• Gimbal Sticks: M4
• Update Method: USB-C (UF2)
• Module Bay: JR compatible module bay
• Color: Red

Applications

This premium transmitter is ideal for a wide range of applications including FPV racing, freestyle flying, long-range drones, UAV operations, RC aircraft, and professional aerial cinematography where precise and reliable control is essential.

Compatibility

Compatible with ExpressLRS receivers. Features a JR-style module bay for additional external modules. Supports EdgeTX firmware. Requires external batteries (2S LiPo, 18650 Li-Ion, or 21700) and optionally a MicroSD card for expanded storage.

FAQ

Where can I buy the RadioMaster TX15 Max ExpressLRS Red transmitter?

You can buy the RadioMaster TX15 Max ExpressLRS Red directly from HTDRONE. We offer fast shipping within Poland and reliable delivery to Ukraine via Nova Poshta, as well as worldwide shipping via DHL.

What makes the RadioMaster TX15 Max suitable for FPV racing?

The TX15 Max features an ultra-fast STM32 H7 processor for low latency, high-quality AG02 CNC aluminum gimbals for precise control, and integrated dual-band ExpressLRS for a reliable connection, all crucial for competitive FPV racing.

Does the RadioMaster TX15 Max come with batteries?

No, the RadioMaster TX15 Max does not include batteries. It is compatible with 2S 7.4V LiPo, two 3.7V 18650 Li-Ion, or a 21700 5000 mAh battery, which must be purchased separately.

What is the main advantage of the integrated ExpressLRS system?

The integrated ExpressLRS system provides extremely low latency and high reliability, supporting both 2.4 GHz and 868/915 MHz frequencies. This ensures a robust and responsive connection between your transmitter and receiver, even in noisy RF environments.

Can I expand the storage on the RadioMaster TX15 Max?

Yes, the RadioMaster TX15 Max comes with 4GB of internal flash memory and also supports external MicroSD cards up to 32GB (FAT32 format). Please note that inserting a MicroSD card will disable the internal flash storage.