BetaFPV SuperX Nano (Dual LR1121) ELRS Gemini Xross Receiver – 2.4GHz/915MHz

Description

Powered by Semtechs LR1121 RF chips and Espressifs ESP32-C3, the SuperX pioneers BETAFPVs first Gemini Xrossband receiver mastering 900M (868/915MHz) and 2.4G bands via LoRa and blistering 1000Hz FSK modes. Conquer race gates and long-range horizons with unshakeable signal reliability, where lesser links fail. Choose the dual-band mastery of SuperX Nano or the band-switching agility of SuperX Mono for precision-tuned performance in any flying scenario.

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Gemini ExpressLRS Gemini revolutionizes RC control by leveraging true diversity hardware to simultaneously transmit across 2.4GHz and/or 900MHz frequencies. Unlike conventional systems, Gemini utilizes dual independent transmit/receive chains – delivering superior link quality (LQ) that thrives in challenging environments like race courses or urban areas.

Gemini offers three modes: 900M Gemini, 2.4G Gemini, and 900M+2.4G Gemini Xrossband (GemX). With GemX, you no longer need to choose between performance traitsit combines 2.4GHz’s low latency and 900MHz’s long-range in a single, seamless link.

Note: The GemX mode requires a dual-band TX.

SuperX Nano: 900M+2.4G Dual Band

Powered by dual LR1121 chips from Semtech, the SuperX Nano Receiver delivers uncompromising signal reliability with three modes: 900M Gemini (long-range penetration), 2.4G Gemini (ultra-low latency), and 900M+2.4G GemX (simultaneous operation). The included dual-band T antennas eliminate frequency-switching hassles, while advanced diversity processing ensures rock-solid stability in RF-challenged environments. Built for mission-critical applications, it’s the ultimate solution for competitive racers, long-range explorers, and professional aerial photographers who demand zero-compromise performance.

TX Compatibility

SuperX vs. SuperD vs. Nano

	SuperX RX	SuperD RX	Nano RX
MCU	ESP32-C3	ESP32-PICO-D4	ESP8285
RF Chip	Dual LR1121, LR1121	Dual SX128X (2.4G), Dual SX1276 (900M)	SX128X (2.4G), SX1276 (900M)
Antenna Mode	Gemini, single	True diversity	Single
Frequency	900M+2.4G, 900M/2.4G	2.4G/900M
Telemetry Power	20dBm	20dBm (2.4G) / 17dBm (900M)
Modulation	LoRa,FSK	LoRa,FLRC
Serial Output Protocol	CRSF, SBUS, SUMD, DJI RS2 Pro, MAVLink

BETAFPV ExpressLRS Receivers

Choosing the right receiver is critical for optimal FPV performance. BETAFPVs ExpressLRS lineup offers tailored solutions for every pilot: ELRS Lite, Micro, Nano, SuperP, SuperD, and the newest SuperX. From whoop racing to long-range cinematography, we engineer the low-latency links and interference-proof performance you demand.

Configuration

The SuperX Receiver currently supports CRSF/SBUS/SUMD protocols. The following takes CRSF protocol as an example to introduce its connection and pin configuration with Betaflight firmware flight controller.

Wiring diagram:

JST SH connector pin configuration:

Note: Betaflight and ExpressLRS use different JST SH connector pin configurations. Betaflight: 5V (V+), GND, RX, TX; ExpressLRS: GND, 5V (V+), TX, RX. When using the terminal wires for connection, please check the sequence.

Connect the flight controller to the Betaflight Configurator for basic configuration. First, on the “Port” tab, enable the flight controller serial port like UART1 as Serial Rx.

On the “Configuration” tab, set Receiver Mode to Serial (via UART) and Serial Receiver Provider to CRSF.

Bind

The SuperX Receiver uses ExpressLRS V3.x official protocol as its default firmware without a pre-set binding phrase. For successful operation, ensure the transmitter module also uses ExpressLRS V3.x or later firmware with no pre-set binding phrase.

1. Power-cycle the receiver 3 times with a 1-second interval or press and hold the BOOT button for 2 seconds to enter binding mode.
2. The RGB indicator flashes orange twice, which indicates the receiver is in bind mode.
3. Configure remote control or transmitter module to bind with the receiver. If the RGB indicator is a solid light, it’s bound!

Notes:

After binding once, the receiver will remember the autosaved binding phrase and device. Further restarting of the device will be bound automatically without the need for a rebinding process.

If you have flashed firmware to the SuperX and configured the binding phrase, you will not be able to bind using the method above. Please set the same binding phrase for the transmitter module, this allows the receiver to be bound to the device automatically.

It is recommended to place the two antennas as far apart as possible for better reception.

File

• User Manualfor BETAFPV SuperX ELRS Gemini Xross Receiver
• Firmware for SuperX ELRS Gemini Xross Receiver
• How to flash the firmware of SuperX Receiver via Passthrough or WIFI?

Features:

• Semtech LR1121 RF chips + Espressif ESP32-C3
• LoRa and blistering 1000Hz FSK modes
• Supports 900M Gemini, 2.4G Gemini, 900M+2.4G GemX
• SuperX Nano: Dual-band mastery for RF-challenged environments
• Works with Micro/Micro V2/Nano V2/SuperG TX modules
• Compact and lightweight

Specifications:

	SuperX Mono RX	SuperX Nano RX
MCU	ESP32-C3
Telemetry Power	20dBm
Input Voltage	5V
Protocols	CRSF, SBUS, SUMD, DJI RS2 Pro, MAVLink
RF Chip	Single LR1121	Dual LR1121
Reception Mode	Single	Diversity/Gemini
Frequency Band	900M/2.4G	900M+2.4G
Antenna Connector	IPEX MHF1 x1	IPEX MHF1 x2
Weight	0.82g	1.45g
Dimensions	12.3 x 18.6mm	16.3 x 21.4mm
LUAName	BFPV SuperX Mon	BFPV SuperX Nan
Recommended	2”- 5” drones (racing, freestyle, long-range)	5” + drones (freestyle, photography, long-range)

Package Includes:

• 1* SuperX Nano Receiver
• 2* Dual-band T Antenna
• 1* SH1.0 Connector (Double Ended)
• 2* Heat Shrink Tubing
• 1* User Manual