Dual ELRS 2.4G/900M: maximum range and control

Dual-Band ELRS: 2.4 GHz + Sub-G 900 MHz, 1 W per RF path; supports Gemini Xrossband mode.
Foldable antennas and sticks for compact transport and storage.
GX01 3D Digital CNC Hall Gimbal: aluminium gimbals, 1000 Hz polling, EdgeTX Sync.
Modular switch panels, programmable 6-position buttons and RGB indicators.
512 MB built-in memory and USB‑C for 2S charging, simulator use, updates and memory access.

Description

Radiomaster GX12 is a compact yet highly capable radio controller designed for pilots who need a stable link and fast response in real-world flying. It features the dual-RF Gemini Xrossband ELRS system: simultaneous operation on 2.4 GHz and Sub‑G 900 MHz with up to 1 W per RF path improves control-link reliability and provides a tangible boost in range and interference resistance.

For field portability, the GX12 comes with foldable dual-band antennas and foldable sticks, so the transmitter packs neatly into a backpack and can be carried safely without risking damage to the controls. Precision is handled by the GX01 gimbals: fully aluminium 3D CNC assemblies with digital Hall sensors and a 1000 Hz polling rate. EdgeTX Sync support adds a truly “connected” feel, where every stick movement is transmitted as quickly and predictably as possible.

The transmitter is built for flexible setup: modular switch panels let you customise the layout for your own use cases. There are individually programmable 6-position switches, plus RGB indicators on the 6-position and SA/SD switches for clear mode indication. A high-contrast OLED display makes it easy to monitor parameters and navigate settings.

The GX12 includes 512 MB of built-in storage, so a TF card is not required. The USB‑C port provides smart 2S balance charging, simulator connectivity, firmware updates and storage access. For consistent performance in varying conditions, it features enhanced cooling, a hydrophobic PCB coating and reinforced plastics—helping maintain reliability in heat, cold and humidity. Also worth noting are the DIY SMA ports: you can fit your own antennas if needed.

Specifications

Radio system: ExpressLRS (ELRS), Dual-Band 2.4 GHz + Sub‑G 900 MHz
Transmitter power: 1 W per RF path
Mode: Gemini Xrossband
Gimbals: GX01 3D Digital CNC Hall Gimbal
Polling rate: 1000 Hz
Support: EdgeTX Sync
Antennas: foldable, dual-band
Sticks: foldable
Switches: modular panels, programmable 6-position
Indication: RGB on 6-position and SA/SD
Display: OLED, high-contrast
Memory: 512 MB built-in
Interface: USB‑C (2S charging, simulator, updates, memory access)
Extras: DIY SMA antenna ports; enhanced cooling; hydrophobic PCB coating; reinforced plastics

In the box

Radiomaster GX12 remote controller

Compatibility: full compatibility with all ExpressLRS receivers: RP/ER series (2.4 GHz), BR (900 MHz) and Gemini Xrossband (LR1121), including external solutions such as DBR4.