Description
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Product Short Description
The iFlight ELRS Dualband 100mW Ultra-Lightweight Receiver is a ground-breaking, next-generation control link designed for long-range endurance, cinematic aerial photography, and high-performance FPV freestyle. Driven by the advanced ESP32-C3 MCU and the versatile LR1121 RF chip, this revolutionary receiver natively supports true dual-band operation across 2.4GHz ISM, 868MHz EU, and 900MHz FCC frequencies on a single antenna platform. It incorporates a premium Temperature-Compensated Crystal Oscillator (TCXO) to entirely eliminate frequency drift caused by extreme temperature variations or intense flight loads. Packing a potent 100mW (20dBm) telemetry output power, built-in Low Noise Amplifier (LNA) for the 2.4G band, and a convenient plug-and-play SUR 0.8 connector layout, it crams unmatched signal stability into an ultra-miniature, 0.8-gram footprint.
Technical Specifications
| Specification | Details |
| Brand | iFlight |
| Model | ExpressLRS Dualband 100mW RX |
| Core Processor (MCU) | ESP32-C3 |
| RF Transceiver Chip | LR1121 Array |
| Simultaneous Frequency Bands | 2.4GHz ISM / 868MHz EU / 900MHz FCC |
| Receiver Architecture | Single Antenna System |
| Telemetry Output Power | 100mW (20dBm) |
| Pre-Installed Firmware | ExpressLRS v3.5.3 |
| Communication Protocol | CRSF (Crossfire Protocol) |
| TCXO Stability Clock | Yes (Integrated Temperature-Compensated Oscillator) |
| Low Noise Amplifier (LNA) | YES (For 2.4GHz) | N/A (For 868/900MHz) |
| Hardware Interface Connection | SUR 0.8 Multi-pin Connector Layout + Solder Pads |
| Lua Script Configuration Target | iF DB 100mW RX |
| Module Physical Dimensions | 18 x 11 mm ($\pm$0.2mm) |
| Net Weight | 0.8 grams ($\pm$0.5g without antenna) |
Package Includes
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1 x iFlight ELRS Dualband 100mW RX Receiver Module
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1 x Custom High-Gain 160mm Dualband Receiver Antenna
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1 x Pre-terminated SUR 0.8 Interconnect Harness Cable


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