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XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver
Prices are intentionally not displayed on the site.
Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Why choose XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver through RC-MODEL?
XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver is an RC product from RadioMaster. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
Fit and use
XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver fits customers looking for RadioMaster items in Receiver, ExpressLRS Receivers, Dual-Band ExpressLRS Receivers, with RC-MODEL support for choosing the right configuration.
- Relevant category: Receiver, ExpressLRS Receivers, Dual-Band ExpressLRS Receivers
- Product identification for inquiry: model HP0157.XR3-DB / SKU HP0157.XR3-DB
Key details
- Item: XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver
- Weight: 1.3g (without antenna)
- Antenna: 2x T-Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package)
- Frequency Range: 2.4GHz / Sub-G 900MHz
- Working voltage: DC 4.5 - 8.4V
- Dimension: 22mm * 15mm * 4mm
Before ordering
- Confirm dimensions, power system, radio compatibility or material size before purchase.
- Ask us to match required accessories, adhesives, hardware, batteries or replacement parts.
- RC-MODEL helps with fit checks, availability, compatible accessories and a formal quote in Israel.
XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver is a RadioMaster product intended for RC aircraft, FPV, surface and telemetry receiver installations. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
Key Advantages
- Organized for RC aircraft, FPV, surface and telemetry receiver installations.
- Part of the RadioMaster receiver range.
- RF/protocol context: ExpressLRS / ELRS, Gemini Xrossband, 2.4GHz, 915MHz / 868MHz.
- Multiple variants are documented for easier matching to the required setup.
- Includes local product imagery and structured specifications for customer comparison.
Core Specifications
- Product Code: HP0157.XR3-DB
- Product Family: RadioMaster receiver range
- Protocol / RF: ExpressLRS / ELRS, Gemini Xrossband, 2.4GHz, 915MHz / 868MHz
- Available Variants: 2 x Dual-Band / FCC; 2 x Dual-Band / LBT; 2 x 2.4GHz / FCC; 2 x 2.4GHz / LBT; 2 x Sub-G 900MHz / FCC; 2 x Sub-G 900MHz / LBT
- Weight: 1.3g (without antenna)
- Item: XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver
- Type: ISM2.4 or CE868
- MCU: ESP32C3
- RF Chip: LR1121
- RF connector: IPEX-1 X 2
- Antenna: 2x T-Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package)
- Frequency Range: 2.4GHz / Sub-G 900MHz
- Telemetry Power: 100mw
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Servo selection: torque, speed, gears and voltage
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One of the most important setup guides: find the CG, install the flight battery, balance the aircraft and avoid nose-heavy or tail-heavy surprises.
Mandatory pre-flight checks for safer RC flying
A repeatable inspection routine for control direction, radio range, failsafe, battery, fasteners, propeller, CG and field readiness.
How to perform the first test flight of an RC aircraft
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| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.XR3-DB |
| All Variant SKUs | HP0157.XR3-DB, HP0157.XR3-DB-LBT, HP0157.XR3-2400, HP0157.XR3-2400-LBT, HP0157.XR3-900, HP0157.XR3-900-LBT |
| Available Variants | 2 x Dual-Band / FCC; 2 x Dual-Band / LBT; 2 x 2.4GHz / FCC; 2 x 2.4GHz / LBT; 2 x Sub-G 900MHz / FCC; 2 x Sub-G 900MHz / LBT |
| Product Type | Receiver |
| RadioMaster Collections | Dual-Band ExpressLRS Receivers, ELRS Receivers |
| Product Family | RadioMaster receiver range |
| Application | RC aircraft, FPV, surface and telemetry receiver installations |
| Item | XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver |
| Weight | 1.3g (without antenna) |
| Protocol / RF | ExpressLRS / ELRS, Gemini Xrossband, 2.4GHz, 915MHz / 868MHz |
| Type | ISM2.4 or CE868 |
| Antenna | 2x T-Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package) |
| MCU | ESP32C3 |
| RF Chip | LR1121 |
| Frequency Range | 2.4GHz / Sub-G 900MHz |
| FW Target | RadioMaster XR3 2.4/900 Diversity RX |
| Working voltage | DC 4.5 - 8.4V |
| Maximum receive refresh rate | DK500Hz / K1000Hz |
| Minimum receiver refresh rate | 25Hz |
| Dimension | 22mm * 15mm * 4mm |
| Firmware Version | ExpressLRS v3.5.1 pre-installed |
| Telemetry Power | 100mw |
| RF connector | IPEX-1 X 2 |
| Bus interface 1 | CRSF |
| Bus interface 2 | UART |
Tags: RadioMaster, HP0157.XR3-DB, Dual-Band ExpressLRS Receivers, ExpressLRS Receivers, Receiver, RC radio