RadioMaster DBR4 Xross Gemini ExpressLRS Dual Band Receiver
The DBR4 is Gemini's advanced dual-band, dual-channel receiver, providing seamless compatibility with the Nomad module.
USD · Volume pricing available
Categories:
Certifications
Global Shipping 7-14 Days
DHL, FedEx, UPS, Air & Sea
Genuine Products
Authorized distribution
Export License Ready
ECCN, CO, CI, PL, EUS docs
24/7 Tech Support
Pre & post sales
Export Compliance
EAR99AI confidence 90% · NLR — No license required. Standard end-use statement recommended.
Buyer Tier Benefits
Tier discounts stack with volume pricing. Automatically applied after your first order.
Order the Radiomaster DBR4 Xross Gemini ExpressLRS dual-band receiver at an affordable price!
The Radiomaster DBR4 Xross Gemini ExpressLRS receiver is an innovative solution for radio-controlled models. It provides reliable communication thanks to dual-band technology. Support for the 2.4 GHz and 900 MHz bands makes it universal. The receiver is compatible with the Nomad module, which increases its functionality.
The main advantage of DBR4 is its high telemetry power. The maximum power reaches 2 x 100 mW. This ensures a stable connection over long distances. Four independent antennas allow you to optimally configure the receiver for any conditions. You can choose antennas depending on the needs of your project.
20 x 20mm mounting holes make installation easy. The receiver can be easily integrated into various models. It is also worth noting support for Xrossband GemX. This expands the usability and improves system performance. DBR4 provides a maximum receive refresh rate of up to 500 Hz.
There are plans to upgrade to 1000Hz in ExpressLRS V3.4 in the future. This will make the receiver even more powerful and fast. The minimum refresh rate is 50 Hz, which is also an excellent indicator. The receiver uses Semtech LR1121 chips, which guarantees high reliability.
Benefits and Features
The Radiomaster DBR4 Xross Gemini ExpressLRS receiver has many advantages. It provides reliable communication over long distances. The dual-band system significantly reduces interference. Four antennas allow you to adapt to different conditions.
Support for different frequency ranges makes it a universal solution. You can use it in various models and projects. High telemetry power ensures stable operation. Convenient mounting holes make installation into any model easy.
With Radiomaster DBR4 you get reliability and quality. This receiver is ideal for both beginners and experienced users. It will be a great choice for your RC project. Don't miss the opportunity to improve your results with Radiomaster DBR4!
Specifications
- RF telemetry power: Max. 2 x 100 mW
- Communication reliability: dual-band ELRS Gemini Xrossband
- ExpressLRS Gemini: 2.4 GHz
- 4 independent antennas: for optimal configuration
- Mounting holes: 20 x 20 mm
- Xrossband GemX support
- Specifications
- Name: DBR4 Gemini Xrossband ExpressLRS Receiver
- Type: ISM_2.4, FCC_915
- MCU: ESP32
- RF Chip: Semtech LR1121 x 2
- RF telemetry power: Max. 100 mW
- Antennas: 2 antennas at 2.4 GHz and 2 antennas at 900 MHz
- Frequency range: 2.404–2.479 GHz / 903.5–926.9 MHz
- Maximum receive update rate: 500 Hz (1000 Hz coming soon in ExpressLRS V3.4)
- Minimum Receive Update Rate: 50Hz
- Operating voltage: DC 4.5–8.4 V
- Weight: Without antennas - 2.70 g / With antennas - 5.30 g
- Dimensions: 27.20 x 27.20 mm
- Firmware version: ExpressLRS v3.3.2 (pre-installed)
- Bus interface: CRSF.
