RadioMaster ER16 PWM – Dual-Band GEMINI-X 16CH ELRS Receiver

Maximum channel capacity, true dual-band redundancy, and advanced power management — engineered for large-scale aircraft at Aerobertics.

The RadioMaster ER16 PWM is a high-performance 16-channel Dual-Band GEMINI-X ExpressLRS receiver specifically designed for large fixed-wing aircraft where reliability, redundancy, channel capacity, and advanced power management are essential.

Combining 2.4GHz + Sub-G 900MHz dual-band technology, true diversity reception, 16 PWM outputs, amplified servo signals, and dual isolated XT30 redundant power inputs, the ER16 provides a robust and highly versatile control solution for demanding aircraft installations.

Its dual independent power inputs allow two separate power sources to be connected with isolated power paths and individual voltage telemetry. If one power source fails, the receiver can continue operating from the remaining supply, helping maintain uninterrupted control.

With four independent voltage telemetry inputs, an external safety switch interface, top-mounted servo connections, external UART connectivity, and wireless configuration via Wi-Fi/WebUI, the ER16 is designed from the ground up for sophisticated large-airframe installations.

Key Features

• Dual-Band GEMINI-X RF System
  Combines 2.4GHz and Sub-G 900MHz technology for enhanced RF performance, robust connectivity, and increased link reliability.
• 16 PWM Outputs + Serial Support
  Provides full 16-channel PWM output for large models with extensive servo requirements, plus dedicated bidirectional UART and serial interfaces for system integration and expansion.
• Dual Isolated XT30 Redundant Power Inputs
  Two independent XT30 power inputs support separate redundant power sources. Each input has dedicated voltage telemetry, allowing individual monitoring of both batteries. If one power source fails, the receiver continues operating from the remaining supply.
• External Safety Switch / SW Port
  A dedicated interface supports a pull-tab or external safety switch module, allowing the receiver system to remain inactive until intentional activation — an important feature for safer handling of large aircraft.
• Top-Mounted Servo Outputs
  PWM connections are conveniently positioned on the top side of the receiver for cleaner wiring, easier access, and simplified installation in large airframes.
• Amplified PWM Signal Outputs
  Amplified PWM signals help maintain signal integrity over long servo leads and extension cables. They also improve compatibility with larger, high-torque servos, helping provide reliable control signal delivery throughout the aircraft.
• Four-Source Voltage Telemetry
  Monitor up to four power sources simultaneously through dedicated ADC channels:
  • EXT-V: up to 70V
  • V-PWM / Receiver Supply: up to 12V
  • XT30-1: up to 12V
  • XT30-2: up to 12V
• External Main Voltage Telemetry Connector
  Dedicated connection for direct monitoring of the aircraft's main battery or power pack voltage.
• External UART Interface
  Provides connectivity for telemetry devices, sensors, and additional system expansion.
• CRSF & SBUS Support
  Flexible serial connectivity for integration with compatible flight controllers, peripherals, and advanced RC systems.
• Adjustable Telemetry Power
  Telemetry power can be configured up to 100mW via the ExpressLRS LUA interface.
• Wi-Fi Updates & WebUI
  Configure settings and perform firmware updates wirelessly without removing or disassembling the receiver installation.
• Robust MMCX Antenna Connectors
  Secure, serviceable antenna connections allow easy antenna replacement and provide excellent long-term reliability.
• Durable Injection-Molded Housing
  The robust enclosure is designed to provide structural strength and consistent protection in demanding large-airframe installations.
• Full ExpressLRS Compatibility
  Compatible with ExpressLRS transmitters and modules, including radios with built-in ExpressLRS.

Ideal for Large-Scale Fixed-Wing Aircraft

The ER16 PWM is designed for aircraft where a high number of control channels and a robust power architecture are required.

With 16 PWM outputs, dual isolated power inputs, multi-source voltage monitoring, amplified servo signals, and Dual-Band GEMINI-X RF technology, it is particularly well suited to large-scale aerobatic aircraft, giant-scale models, complex sport aircraft, scale aircraft, and other demanding fixed-wing applications.

The combination of dual-band RF redundancy and redundant power architecture makes the ER16 an excellent choice for pilots who place a strong emphasis on system reliability and continuous control.

Technical Specifications

Package Contents

• 1 × ER16 PWM – Dual-Band GEMINI / GEMINI-X Receiver
• 2 × 2.4GHz Antennas
• 2 × Dual-Band Antennas
• 1 × Safety Switch Module
• 1 × Voltage Telemetry Cable (Type-B)
• 1 × ELRS RX SBUS Cable
• 1 × CRSF Cable

The Aerobertics Touch

At Aerobertics, we believe that large-scale aircraft deserve uncompromising attention to reliability, power management, and installation quality. The ER16 brings these priorities together in one receiver: 16 PWM channels, true dual-band RF, isolated redundant power inputs, comprehensive voltage telemetry, and amplified servo outputs.

For complex aircraft where every connection matters, the ER16 is built to give you the confidence to fly.