Radiomaster 4in1-module external module, multi-protocol module with Nano/JR adapter (FrSky and other protocols) — a universal solution from Radiomaster to expand the capabilities of your radio equipment. The RM 4IN1 Module is compatible with OpenTX and EdgeTX firmware and transforms a compatible transmitter into a multi-protocol remote control that works with most modern receivers.

Description and Key Advantages

This external module supports over 70 popular radio frequency protocols, making it an ideal choice for both beginners and experienced pilots. An output power of up to +20 dBm ensures stable communication at typical flight distances, and support for the wireless trainer function allows for training between transmitters without using physical cables.

Technical Specifications

• Model: RM 4IN1 Module
• Operating voltage: 4.5-8.4 V
• Operating frequency: 2.4G ISM band (2400 MHz - 2483 MHz)
• Radio modules (chips): CC2500, NRF24L01, A7105, CYRF6936
• Operating current: approximately 100 mA
• Antenna gain / output power: +20 dBm
• Weight: 30 g (without antenna)
• Size: 73 × 42 × 22 mm (without antenna)

Supported Protocols and Compatibility

The RM 4IN1 is compatible with over 70 radio frequency protocols, including: DSMX, Flysky, SFHSS, HiTec, HoTT, OMP, Radiolink, Frsky and many others. This allows the module to work with various receivers and aircraft models, providing flexibility in equipment selection.

Wireless Trainer Function

When installed in a transmitter with a JR/Nano interface and using OpenTX or EdgeTX firmware (e.g., on TX16S, TX12, or Zorro), the module allows for wireless trainer functionality between "teacher" and "student". DSMX, Frsky, Flysky, and other modes and protocols are supported, enabling wireless control transfer practice.

Adapters, Compatible Equipment, and Package Contents

By default, the module is supplied as a Nano module; a JR adapter is included, ensuring compatibility with equipment that has a JR interface. Recommended transmitters and devices: Radiomaster Zorro, Boxer, TX16S MKII, TX12 MKII and other remote controls with a JR/Nano connector. The package includes: 1 × RM 4IN1 module, 1 × JR adapter, 1 × antenna, allowing for quick integration of the module into your system without additional accessories.

Product category: Drones & Quadcopters > Drone Components > Remote Controls. Manufacturer: Radiomaster. This module will be a good choice for pilots looking for a reliable, versatile, and powerful solution with broad protocol support and the ability to be used in trainer mode.

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